PPesquisadores do IFSC/USP desenvolvem sensor mais eficiente e estável para detecção de ozônio no ar

Valmor Mastelaro, Rayssa Silva Correia, Amanda Akemy Komorizono, Julia Coelho Tagliaferro e Natalia Candiani Simões Pessoa,

Mar

2026

Mar

2026

SrAl12O19:Mn phosphor prepared by the polymeric precursor method: A soft chemical route to reduce temperature synthesis for optical thermometry application

Thiago Ardana Chaim a,* , Maria Inˆes Basso Bernardi b , Adriano J.G. Otuka a,c , Fabio Simoes ˜ de Vicente a , Alexandre Mesquita a,c

Highly dispersed Ni in Poly(heptazine imide) for efficient visible-light-induced photodegradation of dyes: Unraveling the mechanism and band structures

Janio ˆ S. Almeida a,* , Walker Vinícius F.C. Batista a , Ivan J.S. Junior b , Manoel Jos ́e M. Pires c , Joao ̃ P. de Mesquita d,a , Valmor R. Masteralo e , Osmando

Mar

2026

Mar

2026

High-quantum-efficiency Eu3+–doped TeO2–B2O3–PbO glasses for non-contact optical temperature sensing excited by 405 nm laser

Fabio S. De Vicente a,* , Thiago A. Chaim a , Antonio C. Hernandes b,**

Copper salt–derived lab-made conductive filament: A simple and accessible strategy for fabricating enhanced 3D-printed electrochemical sensors for ciprofloxacin analysis

Amanda G. Batista a,1 , Daniel M.-D.L. Alves a,1 , Nat ́ alia M. Caldas a,1 , Diego A. Peixoto b , Samuel C. Silva b , Ariadne C. Catto c , Valmor R. Mastelaro c , Edson Nossol b , Lucas V. de Faria d , Diego P. Rocha e,* , Rafael M. Dornellas a,*

Mar

2026

Mar

2026

Análises mecanísticas da adsorção de metais tóxicos em sistemas multicomponentes utilizando membranas de óxido de grafeno: estudos cinéticos, de equilíbrio e de reutilização.

Tauany de Figueiredo Neves a,b , Claudia ´ Batista Lopes b , Valmor Roberto Mastelaro c , Renato Falcao ˜ Dantas a , Carlos Manuel Silva b,d,* , Patrícia Prediger a

Color stability of a composite resin modified by ZnO and TiO2 antibacterial nanoparticles

Hércules Bezerra DIAS1 , Lucca SICILIA2 , Maria Inês Basso BERNARDI3 , Antônio Carlos HERNANDES3 , Alessandra Nara de Souza RASTELLI4 

Feb

2026

Jan

2026

Unveiling the impact of Mn addition on the microstructural, electronic and light-assisted gas-sensing properties of WO3 nanoparticles

Joao ˜ V.N. de Palma a,b,* , Ariadne C. Catto c , Janaina L. Borges c , Maria I.B. Bernardi c , Frank Güell b,d , Francesc Gispert-Guirado e , Eduard Llobet b , Waldir Avansi Jr a , Luís F. da Silva

Compósitos de ZnO/rGO/ZnO com desempenho sinérgico aprimorado na detecção de gases para O₃ sem processo de ozonólise

Rayssa Silva Correia , Amanda Akemy Komorizono , Júlia Coelho Tagliaferro , Natália Candiani Simões Pessoa e Valmor Roberto Mastelaro

Jan

2026

Jan

2026

Surface Recombination Suppression in BiVO4 Photoanodes Through Sequential Deposition of FeCoOx and NiOx Thin Films

Niqab Khan, Mohammed AM Bajiri, Washington Santa Rosa, João Victor P. Valverde, Cleber R. Mendonça, Leonardo De Boni, Waldir Avansi Jr, Heberton Wender, Flávio L. Souza, Renato V Gonçalves

Unveiling the catalytic power of β-(Co,Zn)(OH)2 for NaBH4 hydrolysis on hydrogen evolution: The role of oxygen vacancies

LA da Silva a , DTD de Souza a , RT da Silva b , MIB Bernardi c , HV Fajardo a , HB de Carvalho

Jan

2026

Dec

2025

Color stability of a composite resin modified by ZnO and TiO2 antibacterial nanoparticules

Hércules Bezerra DIAS1 , Lucca SICILIA2 , Maria Inês Basso BERNARDI3 , Antônio Carlos HERNANDES3 , Alessandra Nara de Souza RASTELLI4

Enhanced photocatalytic degradation of fluoroquinolone antibiotics using ZnO nanostructured catalysts immobilized on TEMPO-oxidized cellulose

Ramon Resende Leite a,* , Renata Colombo b , Amanda Akemy Komorizono a , Waldir Avansi Jr. c , Maria Inˆes Basso Bernardi a,

Oct

2025

Aug

2025

Optical waveguides and work function modification in perovskite particles embedded tellurium-zinc glass for photonic applications

J.L. Clabel H. , K.T. Paula , Filipe A. Couto , G. Lozano C. , M.P. da Silva , E. Marega Jr., Valmor R. Mastelaro, Cleber R. Mendonça

In-situ electrogeneration of H2O2 and hydroxyl radical applied for venlafaxine degradation: A novel strategy using FeSe2-modified carbon gas diffusion electrode

Fausto E. Bimbi Júnior a , Oswaldo C. Junior a , Robson S. Souto a , João Pedro P. Encide b , Micael M. Baruch b , Maria C.V. Felipe a , Larissa Fernandes a , Isabela F. Araujo a , Carlos H.M. Fernandes a , Igor G.S. Oliveira c , Kathia M. Honorio b , Renata Colombo b , Valmor R. Mastelaro d , Willyam R.P. Barros c , Marcos R.V. Lanza a

Aug

2025

Jul

2025

Room-temperature multiferroic enhancement in cobalt and iron co-doped Aurivillius ceramic via defect engineering strategy

Mahmoud S. Alkathy, Fabio L. Zabotto, R.A. Lozano, Y. Rajesh, V.F. Barbosa, R.A.R. Carvalho, F.P. Milton, D.M. Silva, I.A. dos Santos, V. R. Mastelaro, J.A. Eiras

Optimizing photocatalytic water oxidation by FeMnOx bimetallic cocatalyst on Zn-doped BiVO4 via magnetron sputter deposition

Niqab Khan, Ariadne Koche, Wahidullah Khan, Pallas A.M. Nogueira, Asif Jamil, Yvonne Pieper, Francesca M. Toma, Otaciro R. Nascimento, Renato V. Gonçalves, Sherdil Khan

Jul

2025

Jul

2025

Engineering Stable Cu-Doped SrTiO3 Perovskites for Enhanced Photocatalytic CO2 Reduction

Mohammed A. M. Bajiri, Niqab Khan, Julio Cesar Camilo Albornoz Diaz, Waldir Avansi, Jr., Douglas Gouvea and Renato V. Gonçalves

DFT Calculations, Antibiofilm Properties, and Coating Application of Kefiran for Strawberry Preservation

Gleison N. Marquesa, Alex S. Moraes, Marcela N. Argentin, Isadora C. Pedrino, Paulo T. Lacava, Daniela de A. Carrea, Isabela R. O. Pereira, Ernesto C. Pereira, Ilana L. B. da Cunha Camargo, Farayde Matta Fakhouri, Maria Inês B. Bernardi, Lucia Helena Mascaro, José Ignacio Velasco

Jul

2025

Jul

2025

Superionic conductor glass-ceramics for lithium extraction from aqueous solution

João Felipe Pierdona, Laís P. Caminata, Antonio C. Hernandes, Guilherme Zepon, Ana C.M. Rodrigues, Juliana M.P. Almeida

Carbon dots derived from an aminonaphthalene sulfonic acid as sensitive activated fluorescent probes for chemosensing and imaging applications

Muniz , W Jr (Muniz Jr., W.) [1] ; Alves, RT (Alves, R. T.) [2] ; Braga, LM (Braga, L. M.) [1] ; Terceiro, PS (Terceiro, P. S.) [3] ; Barros, VPO (Barros, V. P. O.) [4] ; Landell, MF (Landell, M. F.) [4] ; Mastelaro, VR (Mastelaro, V. R.) [5] ; de Oliveira, IN (de Oliveira, I. N.) [1]

Jul

2025

May

2025

Optimizing photocatalytic water oxidation by FeMnOx bimetallic cocatalyst on Zn-doped BiVO4 via magnetron sputter depositi

Niqab Khan a,d , Ariadne Koche a, Wahidullah Khan b, Pallas A.M. Nogueira a, Asif Jamil a, Yvonne Pieper c, Francesca M. Toma c, Otaciro R. Nascimento d,e, Renato V. Gonçalves d,* , Sherdil Khan a,*

Two-dimensional ultrathin Co3O4 nanosheet: A cost-effective and reusable catalyst for hydrogen production via sodium borohydride methanolysis

Ramon Resende Leite a,* , Dilean Theilon Dutra de Souza b , Mateus de Souza Amaral b , Maria Inˆes Basso Bernardi a , Humberto Vieira Fajardo b

Apr

2025

Mar

2025

Numerical modeling of temperature distribution and its infuence on microstructure in laser‑sintered bulk ceramics

M. J. M. Nascimento· J. C. A. Santos · A. C. Hernandes · R. S. Silva

Degradation of emerging contaminants using Co/Nb-modified SnO2 nanoparticles and produced with babassu mesocarp (Orbgnya Speciosa)

Juliana B. Lima, Gleison N. Marques, Davi S. Ferreira, Ailton.J. Moreira , Marcelo Assis, Elson Longo, Maria Ines B. Bernardi, Jose H.G. Rangel, Emilio Azevedo, Lucia H. Mascaro, Marcelo M. Oliveira

Feb

2025

Feb

2025

Unraveling the effect of Al-doping on the local structure and the photoluminescence of CaTiO3:Pr nanophosphor

Guilherme Kubo Ribeiro, Thiago Ardana Chaim, Maria Ines Basso Bernardi, Antonio Carlos Roveda Junior Adriano Jose Galvani Otuka, Fabio Simoes de Vicente, Alexandre Mesquita

Nonlinear optical properties of La3+-Doped tellurite-zinc glasses: Impact of chemical bonding and physical properties via Raman and XPS

J.L. Clabel H. , J.V.P. Valverde , G. Lozano C. , E. Marega Jr., Valmor R. Mastelaro, C.R. Mendonça

Jan

2025

Jan

2025

Synergistic effect of ozonation and filtration with graphene-based membranes in the removal of flame retardants in multi-compound systems: Experimental and DFT study

Tauany de Figueiredo Neves a , Joyce Cristale a b c , Natália Gabriele Camparotto a , Valmor Roberto Mastelaro d , Renato Falcão Dantas a , Patrícia Prediger a

Femtosecond laser-induced damage threshold incubation in SrTiO3 thin films

Kelly T. Paula , José L. Clabel H. , Eduardo V.M. Vieira , Valmor R. Mastelaro , José Dirceu Vollet-Filho , Cleber R. Mendonça

Jan

2025

Jan

2025

Comparison on the performance of green and conventional magnetic chitosan-based composites in the removal of complex dyes: Synergetic effect, experimental and theoretical studies

Natália Gabriele Camparotto a , Gabriel Henrique Silva Fulaneti a , Harold Hilarion Fokoue a , Valmor Roberto Mastelaro b , Melissa Gurgel Adeodato Vieira c , Patrícia Prediger

High-Performance Piezoelectric Generator Based on a Monocrystalline LiNbO3 Fiber

Raphael Victor Barros CamposFrancisco Enilton Alves Nogueira*João Paulo Costa do Nascimento*Felipe Felix do CarmoMarcelo Antonio Santos da SilvaSergio Paulo MarcondesAntonio C. HernandesSvetlana V. BoriskinaLuis Marcelo Lozano SánchezAntonio Sergio Bezerra Sombra

Jan

2025

Jan

2025

Maximizing surface reactivity: The impact of electrochemical oxidation as a polydopamine modification step

Jean Valdir Uchôa Teixeira a , Leonardo Francisco Gonçalves Dias c , Nayrim Brizuela Guerra c , Guilherme Ribeiro Capelin a , Valmor Roberto Mastelaro b , Paulo Noronha Lisboa-Filho

Flexible gas sensor based on rGO-ZnO for NO2 detection at room temperature

Amanda Akemy Komorizono a b , Ramon Resende Leite a , Silvia De la Flor c , Eduard Llobet b , Valmor Roberto Mastelaro

Jan

2025

Jan

2025

Synthesis of hematite (α-Fe2O3) nanoparticles using Syzygium cumini extract: Photodegradation of norfloxacin and enhanced recyclability

Davi S. Ferreira, Gleison N. Marques, Q. da Rocha, Ailton J. Moreira, Carlos H.M. Fernandes , Marcos R. Lanza, Maria Inês B. Bernardi, Lucia H. Mascaro, José Hilton G. Rangel Adrianadas Mercês P. Ferreira, Marcelo M. Oliveira, Cláud

Photocatalytic properties of BiFeO3 (BFO) synthesized by microwave-assisted hydrothermal method

Flávio A. Knuth, Rogério D. Knuth, Cátia L. Ücker, Fábio C. Riemke, Cristiane W. Raubach, Mario L. Moreira, Mateus M. Ferrer, Pedro L. G. Jardim, Renato G. Cantoneiro, Valmor R. Mastelaro & Sérgio S. Cava

Aug

2024

Aug

2024

Structural, morphological, and optical investigations of Mn-doped LaAlO3 perovskite obtained by microwave-assisted combustion and rapid calcination at low temperature

Luís P.S. Dias a, Jefferson S. Oliveira b, Gleison N. Marques c, Tomaz R. Araújo d, Dulce M. A. Melo d, Aluísio A. Cabral e, Jomar S. Vasconcelos a, Jos´e H.G. Rangel a,b, Maria Inˆes B. Bernardi f, Gilvan P. Figueredo

Precursor effect on the hydrothermal synthesis of pure ZnO nanostructures and enhanced photocatalytic performance for norfloxacin degradation

Ramon Resende Leite a,*, Renata Colombo b, Fausto Eduardo Bimbi Júnior c, Marcos Roberto de Vasconcelos Lanza c, Hernane da Silva Barud d, Conrado Ramos Moreira Afonso e, Maria Inˆes Basso Bernardi a

Aug

2024

Jul

2024

Evolution of red ceramic pigments: from hazardous compounds to environmentally friendly alternatives

Rayehe Tavakolipour a,*, Yueming Li b, Maryam Hosseini Zori c,*, Maria Ines Basso Bernardi d, Kun Li e, Aušra Čiuladienė f, Eva Miguel

Anatase-rutile-brookite: Structural and photocatalytic properties of TiO2 modified with different boron concentrations

Ailton.J. Moreira a,b,*, Kelvin C. de Araújo b, Gleison N. Marques b, Eryka T.D. Nobrega b, Hugo L.S. Santos b, Lucia H. Mascaro b, Yina J. Onofre c, Helder V.A. Galeti c, Yara Galv˜ao Gobato d, Valmor R. Mastelaro e, Gian P.G. Freschi f, Marcio P.F. Godoy c, Ernesto C. Pereira b

Jul

2024

Jul

2024

Synthesis, structure analysis and Fenton-like catalytic properties of copper-modified graphitic carbon nitride

Jânio S. Almeida a , Walker F.C. Batista a , Luele R.S. Barbosa a , Fernanda B. Damaceno a , Manoel José Mendes Pires b , João Paulo Mesquita a , Valmor R. Mastelaro c , Wayler Silva dos Santos d , Márcio César Pereira d , Henrique A.J.L. Mourão

Triggering Synergy between p-Type Sputter-Deposited FeMnO x or FeNiO x and W-Doped BiVO4 for Enhanced Oxygen Evolution

Niqab Khan*Ariadne KocheHigor Andrade CenturionLucas RabeloJefferson BettiniGabriel T. dos SantosFlavio Leandro SouzaRenato V. GonçalvesSherdil Khan*

Jul

2024

Jul

2024

Synthesis, structure analysis and Fenton-like catalytic properties of copper-modified graphitic carbon nitride

Jˆanio S. Almeida a, Walker F.C. Batista a, Luele R.S. Barbosa a, Fernanda B. Damaceno a, Manoel Jos´e Mendes Pires b, Jo˜ao Paulo Mesquita a, Valmor R. Mastelaro c, Wayler Silva dos Santos d, M´arcio C´esar Pereira d, Henrique A.J.L. Mour˜ao a,b,*

Green-assisted synthesis of highly defective nanostructured Fe-doped SnO2: Magnetic and photocatalytic properties evaluati

M.H. da Silva Ribeiro a, G.N. Marques b, A.J. Moreira c, M.M. Oliveira a, R.C. Oliveira b, R.T. da Silva d, A.C. Krohling e, W.A.A. Macedo e, M.I.B. Bernardi f,*, L.H. Mascaro b, J.H.G. Rangel a, H.B. de Carvalho

Jul

2024

Jul

2024

Photocatalytic CO 2 reduction to CH 4 in continuous flow reactor using Fe 2 TiO 5 enhanced by magnetron sputtering-deposited CuO nanoparticles cocatalyst

dos Santos, GHC (dos Santos, Gustavo H. C.) [1] ; Gonçalves, RV (Goncalves, Renato V.) [2] ; Rossi, LM (Rossi, Liane M.) [1]

α-Mn2O3 porous fibers synthesized by air-heated solution blow spinning (A-HSBS) techinique: electrochemical assessment for oxgen evolution reaction in alkaline medium

Rondinele N. de Araujo a b, Rafael A. Raimundo c, Gelmires de A. Neves b, Valmor R. Mastelaro d, Daniel A. Macedo e, Francisco J.A. Loureiro f g, Marco A. Morales c, Romualdo R. Menezes

Jun

2024

Jun

2024

Plasma treatment of nafion membranes: Understanding the trade-off between surface modification and electrochemical degradation

Rafael Barbosa a,*, Roger Gonçalves a,b, Guilherme E.O. Blanco a, Matheus C. Saccardo a, Robert S. Paiva b, Valmor R. Mastelaro c, Sandra A. Cruz b, Carlos H. Scuracchio a

Blue Pigment based on Ni-doped Zn2GeO4: Addressing structure and electronic properties by combining experiment and theory

Katiana L. Patrocínio, Gleison N. Marques, Amanda F. Gouveia, Lara K. Ribeiro, Nayara A. Pinheiro, Maria I.B. Bernardi, Lúcia H. Mascaro, Juan Andrés, Elson Longo, Marcelo Assis

Jun

2024

Jun

2024

Piezoelectric temperature acoustic sensor of LiNbO3 fibers operating at radio frequencies

Nogueira, F.E.A., Campos, R.V.B., Nascimento, J.P.C., Carmo, F.F., da Silva, M.A.S., Marcondes, S.P., Hernandes, A.C., Sombra, A.S.B.

Environmentally friendly synthesis of In2O3 nano octahedrons by cellulose nanofiber template-assisted route and their potential application for O3 gas sensing

Ramon Resende Leite a , Amanda Akemy Komorizono a , Maria Inês Basso Bernardi a , Antonio José Felix Carvalho b , Valmor Roberto Mastelaro a

May

2024

May

2024

Correction: Carbon dots on LAPONITE® hybrid nanocomposites: solid-state emission and inter-aggregate energy transfer

Bruno S. D. Onishi,a,b Albano N. Carneiro Neto,a Ricardo Bortoletto-Santos,c Valmor. R. Mastelaro,d Luís D. Carlos,a Rute A. S. Ferreira*a and Sidney J. L. Ribeiro*b

Nonlinear optical properties in Pr3+-Er3+-codoped tellurite glasses

J.L. Clabel H․ a , G. Lozano C․ a , J. Chacaliaza-Ricaldi a , Valmor R. Mastelaro a , C.R. Mendonça a , Y. Messaddeq b , E. Marega Jr. a , V.A.G. Rivera b

May

2024

May

2024

0 CrossRef citations to date 0 Altmetric Research Article Band gap tuning in samarium-modified bismuth titanate ferroelectric via iron doping for photovoltaic applications

Mahmoud S. Alkathy, Fabio L. Zabotto, Valmor R. Mastelaro, Flavio P. M.D.M.Silva, Ivair A. Santos

Band gap tuning in samarium-modified bismuth titanate ferroelectric via iron doping for photovoltaic applications

Mahmoud S. Alkathy, Fabio L. Zabotto, Valmor R. Mastelaro, Flavio P. M.D.M.Silva, Ivair A. Santos

May

2024

May

2024

Tringgeg synergy between p-tppe sputter-deposition FeMnOx or FeNix and W-doped BiVO4 for enhanced oxygen evolution

Khan,N., Koche, A., Centurion, H.A., Rabelo, L, Bettini, J., doss Santos, G., Souza, F.L., Gonçalves, RV., Khan, S.

Effect of WO3 in the third-order optical nonlinearities of tungsten lead pyrophosphate glasses

Gabriel O. Campos a, J.L. Clabel H. a, André G. Pelosi a, Leandro Olivetti E. da Silva b, Valmor R. Mastelaro a, Danilo Manzani b, Cleber R. Mendonça

Apr

2024

Apr

2024

Self‑assembled multi‑structured reduced graphene oxide/ zinc composite

Jean Valdir Uchôa Teixeira · Valmor Roberto Mastelaro · Paulo Noronha Lisboa‑Filho

Investigating the thermally induced p-n transition in reduced graphene oxide layers exposed to hydrogen sulfide

Elisa Ruiz a, Christelle Varenne a, Bruno S. De Lima b, Thiaka Gueye a, Alain Pauly a, Valmor R. Mastelaro b, J´erˆome Brunet a, Amadou L. Ndiaye a,*,1

Apr

2024

Apr

2024

UM POUCO DA HISTORIA DO FUNDADOR DO GRUPO: PROF. DR. JOSÉ PEDRO ANDREETA

W&U E GIOVANNA REZENDE

Enhanced sonocatalytic activity of BaZrO3 by insertion of Fe3+

Daiane Fernandes a,*, Paola G. Hernandes a,b, Mario L. Moreira a,b, Cristiane W. Raubach a, Pedro L.G. Jardim a,b, Mateus M. Ferrer a, Eduardo C. Moreira c, Valmor R. Mastelaro d, Sergio da S. Cava a,

Mar

2024

Feb

2024

Green composites based on magnetic N-doped carbons: Synergetic effect on the simultaneous adsorption of emerging contaminants from water

Paula Mayara Morais da Silva a, Nat´alia Gabriele Camparotto a, Tauany de Figueiredo Neves a, Alan Sambugari Carrara a, Valmor Roberto Mastelaro b, Rafael L. Oliveira c,d,*, Patrícia Prediger a

Removal of propranolol by membranes fabricated with nanocellulose/ proanthocyanidin/modified tannic acid: the influence of chemical and morphologic features and mechanism study

Rodrigues, Everton Augusto, Violin, Daniel Silva , Mastelaro, Valmor Roberto Neves, Tauany de Figueiredo, Prediger, Patrícia

Feb

2024

Feb

2024

Investigating the Metallic Nanoparticles Decoration on Reduced Graphene Oxide-Based Sensors Used to Detect Sulfur Dioxide

Elisa Ruiz,Christelle Varenne,Bruno S. De Lima,Thiaka Gueye,Alain Pauly,Jérôme Brunet,Valmor R. Mastelaro, and Amadou L. Ndiaye

Selective inhibitory activity of multidrug-resistant bacteria by zinc oxide nanoparticles

Gleison N. Marques a, Ailton José Moreira b, Eryka Thamyris D. Nóbrega a, Sandalene Braga c, Marcela N. Argentin d, Ilana L.B. da Cunha Camargo d, Emilio Azevedo c, Ernesto C. Pereira a, Maria Inês B. Bernardi e, Lucia H. Mascaro a

Feb

2024

Feb

2024

Nonlinear refraction in high terbium content borogermanate glass bulk and fiber

Franciele R. Henrique a,1, Andr´e G. Pelosi a,1, Juliana M.P. Almeida b, Douglas F. Franco c, Leandro H.Z. Cocca a, J.L. Clabel H. a, Marcelo Nalin c, V.R. Mastelaro a, L. De Boni a, Cleber R. Mendonça a,*

A New Hybrid B-Cyclodextrin/PAMAM G.O. as an Electrochemical Sensor for Isoniazid Detection

Priscila Fernanda Pereira Barbosa, Valmor Roberto Mastelaro and Devaney Ribeiro do Carmo

Jan

2024

Jan

2024

Pulsed laser activation method for hydrogen storage alloys

Bruno H. Silva , Juliana M.P. Almeida , Antonio C. Hernandes , Renato V. Gonçalves , Guilherme Zepon

Photocatalytic activity and pH-induced morphological changes of ZnO/CuO nanocomposites prepared by chemical bath precipitation

Nargol Jalali, Amirhossein Rakhsha, Mohammad Nami, Fereshteh Rashchi and Valmor Roberto Mastelaro

Jan

2024

Aug

2023

Supported Cu catalysts on UiO-66 toward enhanced methanol selectivity by CO2 hydrogenation: effect of Cu loading

Marcos, Francielle Candian Firmino ; Costa, Maria José Fonseca ; Catuzo, Gabriel Liscia ; Moraes, Daniel Angeli de ; Oliveira Junior, Marcos de ; Mastelaro, Valmor Roberto ; Assaf, Jose Mansur ; Giudici, Reinaldo ; Assaf, Elisabete Moreira

A metal-free catalyst based on g-C3N4 functionalized with cyamelurate-like groups: catalytic properties and mechanism of a new heterogeneous Fenton-like catalyst

Oliveira, Wanessa Lima de; Oliveira, Eduarda Ferreira de; Batista, Walker Vinícius Ferreira do Carmo; Mourão, Henrique Aparecido de Jesus Loures; Pires, Manoel José Mendes; Coelho, Rafael Mendes; Diab, Gabriel Ali Atta; Teixeira, Ivo Freitas ; Marques, Gleison; Mastelaro, Valmor Roberto ; Nascimento, Otaciro Rangel ; Valdés, Carlos Eduardo; Urquieta-Gonzalez, Ernesto Antonio ; Ferreira, Dalva Ester da Costa; Pereira, Márcio César; Mesquita, João Paulo de

Aug

2023

Aug

2023

Achieving multiferroic properties in bismuth titanate ceramics via a tri‑doping engineering mechanism with Co, Sm, and La at room temperature

Mahmoud S. Alkathy, Yalambaku Rajesh, Flavio Paulo Milton, Fabio L. Zabotto, Valmor R. Mastelaro, Daniel Matos Silva, Ivair A. Santos & J. A. Eiras

CaMoO4 mesocrystals with sonocatalytic activity for Rhodamine b removal

Daiane Fernandes a,* , Ananda R.N. Stigger b , Mario L. Moreira a,b , Mateus M. Ferrer a , Cristiane W. Raubach a , Pedro L.G. Jardim a,b , Carlos Frederico de O. Graeff c,d , Valmor R. Mastelaro e , Sergio da S. Cava

Aug

2023

Aug

2023

Ni Single-Atoms Supported on N-Doped Carbon Prepared by Cation Exchange: Ultrafast Catalyst For The Reduction of Nitroarene Compounds Under Ambient Conditions

Walker Vinicius Ferreira do Carmo Batista, Wanessa Lima de Oliveira, Eduarda Ferreira de Oliveira, Taís Santos Cruz, Jefferson Luis Ferrari, Braulio Soares Archanjo, Sabrina Grigoletto, Dalva Ester da Costa Ferreira, Fabiano Vargas Pereira, Gabriel Ali Atta Diab, Valmor Roberto Mastelaro, Ivo Freitas Teixeira, Joao Paulo de Mesquita

On the vibrational properties of transition metal doped ZnO: Surface, defect, and bandgap engineering

Viviane M. A. Lage, Carlos Rodríguez-Fernández, Felipe S. Vieira, Rafael T. da Silva, Maria Inês B. Bernardi, Maurício M. de Lima Jr., Andrés Cantarero, Hugo B. de Carvalho

Aug

2023

Aug

2023

Electrical microstructure evolution of CaCu3Ti4O12 (CCTO) ceramics: From resistive and core shell-like to semiconducting grains

JESUS, L.M. ; BARBOSA, L.B. ; ARDILA, D.R. ; SILVA, R.S. ; M'PEKO, J.-C.

Effect of synthesis route on the photoluminescence properties of SrTiO3:Pr,Al phosphor: Nanoparticles and microcubes

Mauro Antonio Andriotti Júnior, Maria Inês Basso Bernardi, Alexandre Mesquita

Jul

2023

Jul

2023

Enhanced energy star of BaTi0,95Ze0,05O3 via generation of defect dipoles upon lithium-doing

Alkathy, M. S.; Rahaman, A.; Mastelaro, V. R.; Milton, F. P.; Zabotto, F. L.; Lente, M. H.; Strabello, A.; Eiras, J. A.

Foconductividad persistente en fibras de titanato de estroncio, estimacion de trampas superficiales y profundas. Persistent photoconductivity in strontium titanate fibers, estimation of surface and deep traps.

Diego A. Land´ınez; Jorge-Enrique Rueda-P; Antonio Carlos Hernandes

Jul

2023

Jun

2023

Photocatalytic activity and pH-induced morphological changes of ZnO/CuO nanocomposites prepared by chemical bath precipitation

Jalali, Nargol; Rakhsha, Amirhossein; Nami, Mohammad ; Rashchi, Fereshteh ; Mastelaro, Valmor Roberto

Adsorption and X-ray photoelectron spectroscopy investigation of bisphosphonates on titania and hydroxyapatite surfaces

Dias, Leonardo Francisco Gonçalves ; Nakata, Milena Yumi Kasama; Pimentel, Gabriel Junior Cavalcante; Bronze-Uhle, Erika Soares ; Mastelaro, Valmor Roberto ; Lisboa-Filho, Paulo Noronha

May

2023

Apr

2023

Magnetization of Zn1−xCoxO nanoparticles: single-ion anisotropy and spin clustering.

Gratens, X.; De Abreu Silva, B.; Bernardi, M.I.B.; De Carvalho, H.B.; Franco Jr., A.; Chitta, V.A.

Introducing structural diversity: Fe2(MoO4)3 immobilized in chitosan films as an efficient catalyst for the selective oxidation of sulfides to sulfones

Líbero, Laura Ordonho ; Silva, Lara Kelly Ribeiro da ; Granone, Luis Ignacio ; Churio, Maria Sandra ; Souza, Josiane Carneiro; Mastelaro, Valmor Roberto ; Andres, Juan ; Longo, Elson ; Mascaro, Lúcia Helena ; Assis, Marcelo de

Mar

2023

Mar

2023

The Relationship between Photoluminescence Emissions and Photocatalytic Activity of CeO2 Nanocrystals

H. Moreno*, G. L. Domingues, M. Assis, P. P. Ortega, V.R. Mastelaro, M. A. Ramirez, and A. Z. Simões

Hydrophobization of aerogels based on chitosan, nanocellulose and tannic acid: Improvements on the aerogel features and the adsorption of contaminants in water.

Natália Gabriele Camparotto a, Tauany de Figueiredo Neves a, Valmor Roberto Mastelaro b,  Patrícia  Prediger.

Mar

2023

Mar

2023

Tungsten gallium-phosphate glasses as promising intrinsic scintillators.

Thiago A. Lodi, Gustavo Galleani , LeonnamG. Merízio , LuizG. Jacobsohn , Valmor R. Mastelaro, Andrea S.S. de Camargo.

NaNbO3/Eumelanin composite: A new photocatalyst under visible light.

Daiane Fernandes a, Cristiane W. Raubach a, Mateus M. Ferrer a, Pedro L.G. Jardim a b, Carlos Frederico de O. Graeff c d, Mario L. Moreira a b, Eduardo C. Moreira e, Valmor . Mastelaro f, Sergio da S. Cava.

Feb

2023

Feb

2023

Achieving high energy storage density simultaneously with large efficiency and excellent thermal stability by defect dipole, and microstructural engineering in modified-BaTiO3 ceramics.

Mahmoud.S. Alkathy , Attaur Rahaman, ValmorR. Mastelaro, Fabio.L. Zabotto, Flavio Paulo Milton, J.A. Eiras.

Emerging trends of pseudobrookite Fe2TiO5 photocatalyst: A versatile material for solar water splitting systems.

Cenirio, Higor A.; Melo, Mauricio A.; Rabelo, Lcas G.; Alves, Gustavo A.S.; Rosa, Washington Santa; Rodrígues-Gutiérrez, Ingrid; Souza, Flavio L.; Gonçalves, Renato V.

Feb

2023

Feb

2023

The photocatalytic performance of Fe inserted in Nb2O5 obtained by microwave-assisted hydrothermal synthesis: Factorial design of experiments.

Cátia Liane Ücker, Vitor Goetzke, Fábio Calcagno Riemke, Marcely Echeverria Oliveira, Neftali Lenin Villarreal Carreno, Fernando Dal Pont Morisso, Marcio Daldin Teodoro, Valmor R. Mastelaro, Mário Lúcio Moreira , Cristiane Wienke Raubach, Sergio da Silva Cava.

Photoactivity of boron-or nitrogen-modified TiO2 for organic pollutants degradation: unveiling the photocatalytic mechanisms and by-products

Moreira, Ailton José; Santos, Bárbara Rodrigues Meneguini dos; Dias, Jeferson Almeida; Rabello, Pietra Terruggi; Coelho, Dyovani ; Mascaro, Lúcia Helena ; Freschi, Gian Paulo Giovanni; Gobato, Yara Galvão ; Galeti, Helder Vinícius Avanço ; Mastelaro, Valmor Roberto ; Pereira, Ernesto Chaves

Feb

2023

Feb

2023

Adsorption of naphthalene polycyclic aromatic hydrocarbon from wastewater by a green magnetic composite based on chitosan and graphene oxide

Queiroz, Ruth Nóbrega; Silva, Meuris Gurgel Carlos da; Mastelaro, Valmor Roberto ; Prediger, Patrícia; Vieira, Melissa Gurgel Adeodato

SrTiO3:Pr,Al phosphor mesocrystals: The role of Al-doping in short-range and electronic structure and its influence on photoluminescence properties

Mauro Antonio Andriotti Júnior, Maria Inês Basso Bernardi, Alexandre Mesquita

Jan

2023

Jan

2023

Hybrid Bisphenol A non-isocyanate polyurethane composite with Mica powder: A new insulating material.

Santos, Juliana J. ; Lopes, José H. ; De Aguiar, Kelen M.F. Rossi ; Simões, Mateus B. ; M´Peko, Jean-Claude ; Jasinevicius, Renato G. ; Cavalheiro, Eder T. ; Imasato, Hidetake; Rodrigues-Filho, Uirajara P.

Interfacial band alignment and photoelectrochemical properties of all-sputtered BiVO 4 /FeNiO x and BiVO 4 /FeMnO x p-n heterojunctions.

Correa, Andressa S.; Rabelo, Lucas G.; Rosa, Washington; Khan, Niqab ; Krishnamurthy, Satheesh; Khan, Sherdil; Gonçalves, Renato V.

Jan

2023

Jan

2023

β-Cyclodextrin PAMAM Dendrimer Surface Doped with Silver and Hexacyanoferrate (III) and its Applications for Dopamine Detection in Synthetic Samples

Priscila Fernanda Pereira Barbosa, Valmor Roberto Mastelaro, Eduardo Guimarães Vieira, Devaney Ribeiro do Carmo

Constructing Particulate p-n Heterojunction Mo:SrTiO 3 /NiO@Ni(OH) 2 for Enhanced H2 Evolution under Simulated Solar Light.

Centurion, H. A.; Rabello, L. G.; Rodriguez-Gutierrez, I.; Ferrer, M.M.; Bettini, J.; Wender, Heberton ; Rossi, L. M.; Souza, F. L.; Gonçalves, R.V.

Oct

2022

Aug

2022

Recent advances on Z-scheme engineered BiVO4-based semiconductor photocatalysts for CO2 reduction: A review.

Khan, N.; Stelo, F.; Santos, G. H.C.; Rossi, L.M.; Gonçalves, R.V.; Wender, H .

Study of the dielectric relaxation mechanisms in KNbO 3 -based electro-ceramics.

Silva, M C O; Silva, A C ; Oliveira, M A ; Mendez-González, Y ; M’Peko, J-C ; Hernandes, A C ; Guerra, J D S

Aug

2022

May

2022

Ionic liquid based dopant-free band edge shift in BiVO4 particles for photocatalysis under simulated sunlight irradiation.

Khan, N.; Wolff, R.N.; Ullah, H.; Chacón, G.J.; Rosa, W. S. ; Dupont, Jairton ; Gonçalves, R.V.; Khan, S.

New graphene oxide-safranin modified@polyacrylonitrile membranes for removal of emerging contaminants: The role of chemical and morphological features.

Neves, T. de F.; Camparatto, N. G.; Rodrigues, E.A.; Mastelaro, V. R.; Dantas, R. F.; Prediger, P.

May

2022

May

2022

Interaction of Polyhedral Oligomeric Silsesquioxanes (POSS) Modified with a Metallocyano Complex and Their Application Use as Sensor for the Detection of Isoniazid.

Carmo, D. R. D.; Peixoto, M.S.; Dos Santos Felipe, A.; Mastelaro, V.R. ; Dos Santos Franco, F.

Comparative efficiency of polycyclic aromatic hydrocarbon removal by novel graphene oxide composites prepared from conventional and green synthesis.

Queiroz, R. N.; Neves, T. de F.; Da Silva, M. G. C.; Mastelaro, V. R; Vieira, M. G.A.; Prediger, P.

May

2022

May

2022

Thermal annealing of natural rubber films controls wettability and enhances cytocompatibility.

Marcelo do Nascimento, R.; Rodrigues, J.E. F.S.; Favarin, B. Z.; Ramos, A. P.; Ciancaglini, P.; Pecharroman, C.; Rahouadj, R.; Hernandes, A. C.; Bechtold, I. H.

β-cyclodextrin PAMAM Dendrimer Surface Doped with Silver and Hexacyanoferrate (III) and its Applications for Dopamine Detection in Synthetic Samples.

Pereira Barbosa, P. F.; Mastelaro, V. R.; Guimarães Vieira, E.; Ribeiro do Carmo, Devaney.

May

2022

May

2022

Enhancement of the ozone-sensing properties of ZnO through chemical-etched surface texturing.

Silva W.A:S.; Lima, B. S.; Bernardi, M. I. B.; Mastelaro, Valmor R.

Enhancement of the ozone-sensing properties of ZnO through chemical-etched surface texturing.

Dos Santos Silva, W. A.; De Lima, B. S.; Bernardi, M. I. B.; Mastelaro, V. R.

May

2022

Apr

2022

Combining Raman spectroscopy and synchrotron X-ray diffraction to unveil the order types in A3CaNb2O9 (A= Ba, Sr) complex perovskites.

Rodrigues, J.E.F. S.; Costa, R. C.; Pizani, P. S.; Hernandes, A. C.; Alonso, J. A.

On the Effect of Thermal Processing on Sn Diffusion and Efficiency Enhancement in Hematite/FTO Photoanodes.

Rodriguez-Gutiérrez, I.; Mouriño, B.; Freitas, A.L. M.; Costa, C.A.R.; Pires, E. L; Gonçalves, R.V.; Vayssieres, L.; Souza, F.L.

Apr

2022

Mar

2022

Adsorption of 17α-ethinylestradiol onto a novel nanocomposite based on graphene oxide, magnetic chitosan and organoclay (GO/mCS/OC): Kinetics, equilibrium, thermodynamics and selectivity studies.

Almeida, A.da S. V. de; Mastelaro, V. R.; Da Silva, M. G. C.; Prediger, P.; Vieira, M. G. A.

Femtosecond-laser processing incubation in Diamond-like carbon.

Nolasco, L. K.; Almeida, F. P.; Almeida, G.F.B.; Almeida, J.M.P.; Mastelaro, V. R.; Paul, K. T.; MENDONÇA, C. R.

Mar

2022

Mar

2022

Femtosecond-laser fabrication of magneto-optical waveguides in terbium doped CaLiBO glass.

Santos, S.N.C.; Romero, A.L.S.; Menezes, B.C.; Garcia, R.Q.; Almeida, J.M.P.; Hernandes, A. C; De Boni, L.; Mendonça, C. R.

Binary Transition Metal NiFeOx and CoFeOx Cocatalysts Boost the Photodriven Water Oxidation over Fe2TiO5 Nanoparticles.

Melo, M. A.; Centurion, H.A.; Machado, G.; Souza, F.L.; Gonçalves, R.V.

Feb

2022

Feb

2022

Phase control and optimization of photocatalytical properties of samarium doped TiO2 synthesized by coupled ultraviolet and microwave radiations.

Moreira, A.J.; Coelho, D.; Dias, J.A.; Mascaro, L.H.; Freschi, G. P.G. ; Mastelaro, Valmor R.; Pereira, E. C.

CuO nanoparticles decorated on hydroxyapatite/ferrite magnetic support: photocatalysis, cytotoxicity, and antimicrobial response.

Paris, E.C.; Malafatti, J. O. D.; Moreira, A. J.; Santos, L. C.; Sciena, C. R.; Zenatti, A.; Edcote, M. Tsuyama; Mastelaro, V. R.; Joya, M. R.

Jan

2022

Jan

2022

Tuning CO2 Hydrogenation Selectivity by N-Doped Carbon Coating over Nickel Nanoparticles Supported on SiO2.

Arpini, B. H.; Braga, A. H.; Borges, L.R.; Vidinha, P.; Gonçalves, R.V.; Szanyi, J.; Rossi, L. M.

Parallel-solution blow spun Al-SnO2/F-SnO2 fibers as an efficient room temperature ethanol sensor.

Nascimento, E. P.; Araujo, R.; Firmino, H.C.T.; Mastelaro, V.R.; Loureiro, F.J.A. ; Neves, G.A.; Medeiros, E. S.; Menezes, R. R.

Jan

2022

Jan

2022

Tunning the Gas Sensing Properties of rGO with In2O3 Nanoparticles.

Lima, B. S.; Komorizono, A. A.; Ndiane, A. L.; Bernardi, M. I. B.; Brunet, J. ; Mastelaro, Valmor R.

Tunning the Gas Sensing Properties of rGO with In2O3 Nanoparticles.

De Lima, Bruno S.; Komorizono, A. A.; Ndiaye, A.L.; Bernardi, M.I.B.; Brunet, J.; Mastelaro, V. R.

Jan

2022

Jan

2022

Ternary Oxide CuWO4 /BiVO4 /FeCoOx Films for Photoelectrochemical Water Oxidation: Insights into the Electronic Structure and Interfacial Band Alignment.

Rosa, W. S.; Rabello, L.G.; Tiveron Zampaulo, L. G.; Gonçalves, R.V.

Study of the dielectric relaxation mechanisms in KNbO3 -based electro-ceramics.

Silva, M C O; Silva, A C; Oliveira, M A; Mendez-González, Y; M’Peko, J-C; Hernandes, A C; Guerra, J D S.

Jan

2022

Nov

2021

Gas sensors data analysis system: A user-friendly interface for fast and reliable response-recovery analysis.

De Lima, B.S.; Silva, W.A.S.; Ndiayne, A.L. ; Mastelaro, V.R. ; Brunet, J.

Chromium in lead metasilicate glass: Solubility, valence, and local environment via multiple spectroscopy.

Sampaio, David V.; Pena, Rafaella B.; Moulton, Benjamin J.A.; Rezende, Marcos V.; Silva, Deyvid do C. Silva, Ronaldo S.; Da Cunha, Thiago R. ; Mastelaro, Valmor R. ;  Zanotto, Edgar D.; Pizani, P. S.

Sep

2021