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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Photoelectrocatalytic degradation of caffeine using bismuth vanadate modified with reduced graphene oxide

Full text
Author(s):
Prado, Thiago M. [1] ; Silva, Fernando Lindo [1] ; Carrico, Amanda [1] ; Lanza, Marcos Roberto de Vasconcelos [2] ; Fatibello-Filho, Orlando [1] ; Moraes, Fernando C. [1]
Total Authors: 6
Affiliation:
[1] Univ Fed Sao Carlos, Dept Chem, Rodovia Washignton Luis S-N Km 235, POB 676, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Sao Carlos Inst Chem, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Materials Research Bulletin; v. 145, JAN 2022.
Web of Science Citations: 0
Abstract

Bismuth vanadate modified with reduced graphene oxide (BiVO4/rGO) was synthesized with the aim of applying this semiconductor material in advanced oxidative processes (AOPs) using the photoelectrocatalytic properties of the material for caffeine degradation. The semiconductor material was characterized by Scanning electronic microscopy, X-ray diffraction, Raman spectroscopy and UV-Vis Diffuse reflectance spectrophotometry. Photoassisted linear sweep voltammetry experiments were carried out in order to evaluate the photocurrent generated in the processes. BiVO4/rGO was found to exhibit relatively better photoelectrocatalytic performance compared to bare BiVO4; this result confirms the fundamental role of the carbon-based material when it comes to photoanode construction. With regard to caffeine degradation by high performance liquid chromatography through the application of BiVO4/rGO photoanode, the signal used for monitoring the presence of the analyte exhibited a decrease of 100% of caffeine concentration from the original concentration, indicating the efficient removal of the compound from the sample. (AU)

FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
Grantee:Maria Valnice Boldrin
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 20/01050-5 - Development and application of electrochemical and photoelectrochemical sensors for the determination of emerging contaminants in environmental samples
Grantee:Orlando Fatibello Filho
Support Opportunities: Regular Research Grants