Degradation of carbamate agrochemicals from Advanced Oxidation Electrochemical Processes (AOEP) using boron doped diamond electrodes

• Grant number: 19/00592-1
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: March 01, 2019
• End date: May 31, 2023
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Neidenei Gomes Ferreira
• Grantee: Laís Gimenes Vernasqui
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovação (Brasil). São José dos Campos , 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): 21/07615-7 - Novel boron-doped ultra nanocrystalline diamond/dioxide titanium nanotube/titanium (B-UNCDws/DTNT/Ti) as a porous composite to remove emergent pollutants from gases and urine, BE.EP.DD

Abstract

This project aims the synthesis and characterization of micro/nanostructured boron-doped diamond electrodes to study parabens (with endocrine interference activity) degradation. Diamond films will be grown using the HFCVD method and will be characterized by techniques such as: scanning electron microscopy, X-ray diffraction and Raman spectroscopy. Electrochemical processes (direct oxidation and indirect oxidation via H2O2 electro generation) and electro-Fenton electrodes associated to O3 and UV (254 nm), will be used to degrade the composts. Initially, the degradation will be developed in an electrochemical cell and, after, in an electrochemical flow reactor. As variables of this project, we will evaluate: electrode materials, reaction potential, degradation efficiency of each process and identification of possible intermediates formed, aiming to obtain information for the determination of the degradation routes for each compound. The analytical determination of the target compounds and by-products will be done using instrumental analytical techniques, such as 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. It will also be part of this project the preparation of scientific reports, articles for submission in periodicals with selective editorial policy and papers for presentation in congresses and national and international, in order to disseminate the results obtained in this work. (AU)

Scientific publications

(7)

(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)

VERNASQUI, L. G.; SARDINHA, A. F.; OISHI, S. S.; FERREIRA, N. G.. anoscale control of high-quality boron-doped ultrananodiamond on dioxide titanium nanotubes as a porous composit. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 12, p. 597-612, MAY-JUN 2021. (17/05343-4, 19/00592-1, 17/10118-0)

DOS SANTOS, ALEXSANDRO J.; FORTUNATO, V, GUILHERME; KRONKA, MATHEUS S.; VERNASQUI, LAIS G.; FERREIRA, NEIDENEI G.; LANZA, V, MARCOS R.. Electrochemical oxidation of ciprofloxacin in different aqueous matrices using synthesized boron-doped micro and nano-diamond anodes. Environmental Research, v. 204, n. A, MAR 2022. (17/10118-0, 19/20634-0, 14/50945-4, 19/04421-7, 17/23464-3, 19/00592-1)

VERNASQUI, LAIS G.; DOS SANTOS, ALEXSANDRO J.; FORTUNATO, GUILHERME V.; KRONKA, MATHEUS S.; BARAZORDA-CCAHUANA, HARUNA L.; FAJARDO, ANA S.; FERREIRA, NEIDENEI G.; LANZA, MARCOS R. V.. Highly porous seeding-free boron-doped ultrananocrystalline diamond used as high-performance anode for electrochemical removal of carbaryl from water. Chemosphere, v. 305, p. 9-pg., 2022-06-30. (19/20634-0, 14/50945-4, 19/00592-1, 21/07615-7, 17/23464-3, 17/10118-0, 19/04421-7)

SARDINHA, A. F.; ALMEIDA, D. A. L.; VERNASQUI, L. G.; FERREIRA, N. G.. Electrochemical response enhancement of CF and GO/CF composites using a promising CF etching. DIAMOND AND RELATED MATERIALS, v. 108, p. 9-pg., 2020-10-01. (17/10118-0, 19/00592-1)

VERNASQUI, LAIS G. A.; KAWATA, BIANCA A.; SARDINHA, A. F. A.; RODRIGO, MANUEL A. G.; FERREIRA, NEIDENEI G.. Achievement and electrochemical responsiveness of advanced boron-doped ultrananocrystalline diamond on highly ordered titanium dioxide nanotubes. DIAMOND AND RELATED MATERIALS, v. 121, p. 11-pg., 2022-01-05. (17/05343-4, 19/00592-1, 17/10118-0, 21/07615-7)

VERNASQUI, L. G.; FERREIRA, N. G.; SAEZ, C.; RODRIGO, M. A.. Enhancing electrochemical production of peroxophosphates using new boron doped diamond coatings. Electrochimica Acta, v. 467, p. 7-pg., 2023-09-06. (17/10118-0, 21/07615-7, 19/00592-1)

VERNASQUI, L. G.; SARDINHA, A. F.; OISHI, S. S.; FERREIRA, N. G.. Nanoscale control of high-quality boron-doped ultrananodiamond on dioxide titanium nanotubes as a porous composite. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 12, p. 16-pg., 2021-03-22. (17/10118-0, 17/05343-4, 19/00592-1)