Zobrazeno 1 - 10 of 16 pro vyhledávání: '"Willyam R.P. Barros"'
1
Application of a Screen-Printed Carbon Electrode Modified with Printex 6L and Deep Eutectic Solvent for Detection and Quantification of 17β-Estradiol
Autor: Guilherme C. Paveglio, Camila Garcia Neves, Willyam R.P. Barros, Adriana Letícia Montiel, Fausto Eduardo Bimbi Junior
Publikováno v: SSRN Electronic Journal.
This work proposes the development of a screen-printed electrode (SPE) modified with a mixture of Printex 6L carbon and deep eutectic solvent (DES) (SPE-P6LCDES), used for detection of 17β-estradiol (E2) in mineral water, synthetic urine, and artifi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9a51a6590ab0d772cc3a3b1fde8c707
https://doi.org/10.2139/ssrn.3844766
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2
Simple and efficient method for the determination of Cr(VI) ions in water samples using m-MWCNT@APTMS through dispersive magnetic solid phase extraction
Autor: Pâmela Caires de Oliveira, Willyam R.P. Barros, Marcela Zanetti Corazza, Daiane Cristina Mariano Alegre, César Ricardo Teixeira Tarley, Paula Mantovani dos Santos
This work describes the synthesis and characterisation of a promising adsorbent nanocomposite based on magnetic multiwalled carbon nanotubes (m-MWCNTs) functionalised with 3-aminopropyltrimethoxysilane (APTMS). Was developed a method based on dispers
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c1331f0594088025d98152a1d649d1d
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3
Enhanced electrodegradation of the Sunset Yellow dye in acid media by heterogeneous Photoelectro-Fenton process using Fe3O4 nanoparticles as a catalyst
Autor: Marcos R.V. Lanza, Amanda C.N. Pinheiro, Willyam R.P. Barros, Tayná S. Bernardino, Fausto Eduardo Bimbi Junior
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
This work describes the study of sunset yellow (SY) dye degradation based on the heterogeneous electro-Fenton (EF) process, where Fe3O4 NPs were used as heterogeneous catalysts. The electrochemical system used was an undivided electrochemical cell wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::268e3fca3698cd6d89efad0855bd052f
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4
Stability of di-butyl-dichalcogenide-capped gold nanoparticles: experimental data and theoretical insights
Autor: Bruno Perlatti, Luiz Fernando Gorup, Willyam R.P. Barros, Emerson R. Camargo, Alcindo A. Dos Santos, Aleksey E. Kuznetsov, Pedro A. P. Nascente, Elson Longo, Isabela de Macedo Tomitao, A.M. Kubo, Edison P. Wendler, Thiago Sequinel
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Metals capped with organochalcogenides have attracted considerable interest due to their practical applications, which include catalysis, sensing, and biosensing, due to their optical, magnetic, electrochemical, adhesive, lubrication, and antibacteri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::782c9e76a7b2e84dab1896016514bd94
https://pubmed.ncbi.nlm.nih.gov/35495990
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5
Effect of Fe2+ on the degradation of the pesticide profenofos by electrogenerated H2O2
Autor: Ricardo Bertholo Valim, Fernando L. Silva, Marcos R.V. Lanza, Robson S. Rocha, Rodnei Bertazzoli, Juliana R. Steter, Willyam R.P. Barros
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
The purpose of the study was to evaluate the degradation of the organophosphate pesticide profenofos in acidic medium using a gas diffusion electrode (GDE) modified with 5.0% cobalt phthalocyanine (CoPc). The degradation of profenofos was based on ox
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78ee6a2f37e4cb071858e845f4ab7bfc
https://doi.org/10.1016/j.jelechem.2016.11.038
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6
Oxygen reduction to hydrogen peroxide on Fe3O4 nanoparticles supported on Printex carbon and Graphene
Autor: Marcos R.V. Lanza, Qiliang Wei, Willyam R.P. Barros, Shuhui Sun, Gaixia Zhang, Ana C. Tavares
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Fe3O4 nanoparticles supported on graphene (Fe3O4/graphene) and Printex carbon (Fe3O4/Printex) are reported as promising catalysts for oxygen reduction reaction (ORR) to H2O2 in alkaline medium. The catalysts were synthesized by a simple precipitation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63eed2d75e6e249dc8eb22f85df71496
https://doi.org/10.1016/j.electacta.2015.02.175
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7
Degradation of amaranth dye in alkaline medium by ultrasonic cavitation coupled with electrochemical oxidation using a boron-doped diamond anode
Autor: Marcos R.V. Lanza, Juliana R. Steter, Artur de Jesus Motheo, Willyam R.P. Barros
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Amaranth dye is used widely in the processing of paper, textiles, foods, cosmetics, beverages and medicines, and effluents contaminated with this compound are discharged daily into the environment. Recent studies have shown that azo dyes, especially
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d060858ad2d0280ea4752a7f799f413
https://doi.org/10.1016/j.electacta.2014.07.141
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9
Electrogeneration of hydrogen peroxide in acidic medium using gas diffusion electrodes modified with cobalt (II) phthalocyanine
Autor: Rafael M. Reis, Robson S. Rocha, Willyam R.P. Barros, Marcos R.V. Lanza
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Hydrogen peroxide (H 2 O 2 ) is a commonly used oxidant with a wide variety of applications in, for example, organic synthesis and wastewater treatment. This paper describes the development of catalysts for the electrogeneration of H 2 O 2 in acidic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cab8ff90476ed30d795991bda875980
https://doi.org/10.1016/j.electacta.2013.04.079
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10
Catalytic activity of Fe3−xCuxO4 (0≤x≤0.25) nanoparticles for the degradation of Amaranth food dye by heterogeneous electro-Fenton process
Autor: Ana C. Tavares, Marcos R.V. Lanza, Juliana R. Steter, Willyam R.P. Barros
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
This work describes the application of substituted magnetite nanoparticles, Fe 3− x Cu x O 4 (0 ≤ x ≤ 0.25), as heterogeneous catalysts for the electro-Fenton process in alkaline medium (KOH, pH 13.4) using an uncatalyzed gas diffusion electrod
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d78cdc2b821728bfc90f20247c18761e
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