Development of photo anodes g-C3N4/BiVO4 and g-C3N4/CuO applied in the photoelectrochemical degradation of effluents from the textile industry

• Grant number: 20/15211-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: September 01, 2021
• End date: August 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Lucia Helena Mascaro Sales
• Grantee: Isabelle Maria Duarte Gonzaga
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID

Abstract

This project aims at the synthesis, characterization and application of photoanodes produced from the heterojunctions of bismuth vanadate (BiVO4) and copper oxide (CuO) with graphitic carbon nitride (g-C3N4) for the photoelectrocatalytic degradation of effluents from textile industry. The oxides will be produced by an environmentally friendly route using polyvinyl alcohol as a solvent and applied on titanium substrate, by brushing, for the formation of g-C3N4/BiVO4 and g-C3N4/CuO. The oxide synthesis parameters will be studied to obtain films with greater photocatalytic activity. The physical characterization of the films will be carried out by X-ray diffraction techniques, scanning electron microscopy and dispersive energy analysis, Raman spectroscopy and band-gap determination. The electrochemical characterizations will be performed by voltammetric techniques and electrochemical impedance spectroscopy. Photocurrent studies will be performed for BiVO4, g-C3N4 and CuO films individually and the results will be compared with the heterojunctions of g-C3N4/BiVO4 and g-C3N4/CuO. The efficiency of pollutant species degradation processes during photoelectrocatalytic experiments will be evaluated using instrumental analytical techniques of UV/Vis spectrophotometry, high performance liquid chromatography and analysis of total organic carbon content. (AU)

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

GONZAGA, ISABELLE M. D.; ALMEIDA, CAIO V. S.; MASCARO, LUCIA H.. A Critical Review of Photo-Based Advanced Oxidation Processes to Pharmaceutical Degradation. CATALYSTS, v. 13, n. 2, p. 34-pg., 2023-02-01. (17/11986-5, 20/15211-0, 13/07296-2, 21/14693-4)

GONCALVES, CRISTIANE B.; DA SILVA, RAFAEL T.; DALENOGARE, GUSTAVO; GONZAGA, ISABELLE M. D.; MASCARO, LUCIA H.; FERRER, MATEUS M.; ASSIS, MARCELO; LONGO, ELSON; DE CARVALHO, HUGO B.; DORIGUETTO, ANTONIO C.. Comprehensive experimental and theoretical studies on the synthesis and characterization of electrodeposited nanostructured Cu2O thin films. SURFACES AND INTERFACES, v. 42, p. 11-pg., 2023-09-16. (20/15211-0, 13/07296-2)

REIS, ROBERTA Y. N.; GONZAGA, ISABELLE M. D.; GONCALVES, ROGER; FERNANDES, CARLOS H. M.; ASSIS, MARCELO; PEREIRA, ERNESTO C.; LANZA, MARCOS R. V.; MASCARO, LUCIA H.. WO₃/BiVO₄ heterojunctions: Photoelectrochemical performance for dexamethasone degradation and toxicity assessment in Lactuca sativa. Electrochimica Acta, v. 526, p. 15-pg., 2025-06-20. (21/11326-0, 23/06558-5, 18/22022-0, 18/22210-0, 13/07296-2, 20/15211-0, 22/12895-1, 23/08525-7, 17/11986-5, 18/22211-7)