Evaluation and application of electrodes of oxide mixtures and boron doped diamond for the degradation of organic compounds with activity of endocrine interference

• Grant number: 18/26475-9
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: February 01, 2019
• End date: July 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Artur de Jesus Motheo
• Grantee: Leticia Mirella da Silva
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination, AP.TEM
• Associated scholarship(s): 21/06908-0 - Electrochemical treatment for the removal of carbamates from contaminated soil, BE.EP.DD

Abstract

Fellowship project will involve studies of electrode materials in bench cells and/or flow reactors and the degradation of at least two agrochemicals, primarily of the carbamate class, with endocrine interference. In these studies, electrochemical processes (direct oxidation and/or indirect oxidation via H2O2 electrogeneration) and electro-Fenton associated with O3 and UV (254 nm) use, initially in the electrochemical cell and in the electrochemical flow reactor sequence, will be used. As study variables, the following will be evaluated: the nature of the electrode materials, the degradation efficiency of each process and the identification of intermediates formed, aiming to obtain information for the determination of the degradation routes for each compound. These analytical determinations will be made by high performance liquid chromatography with UV/Vis and mass detectors, ion chromatography, total organic carbon analysis and others, aiming to evaluate the efficiency of each process studied. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA, LETICIA M.; SILVA, LIVIA R.; MOTHEO, ARTUR J.. Using niobium/BDD anode-based multi-cell flow reactor for the electrochemical oxidation of methyl paraben in the presence of surfactants. JOURNAL OF WATER PROCESS ENGINEERING, v. 44, DEC 2021. (17/10118-0, 18/26475-9)

DA SILVA, LETICIA MIRELLA; MENA, ISMAEL F.; MONTIEL, MIGUEL A.; SAEZ, CRISTINA; MOTHEO, ARTUR J.; RODRIGO, MANUEL A.. Electrochemical generation of chlorine dioxide for use in environmental remediation. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, v. 177, p. 11-pg., 2023-09-01. (21/06908-0, 17/10118-0, 18/26475-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SILVA, Leticia Mirella da. Electrochemical treatment to remove carbamates from water and soil. 2024. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Química de São Carlos (IQSC/BT) São Carlos.