Study of photoeletrocatalytic degradation of cosmetic dyes with TiO2 nanotube electrodes undoped and doped Sb2S3

• Grant number: 12/18357-0
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: October 01, 2012
• End date: April 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Maria Valnice Boldrin
• Grantee: Guilherme Garcia Bessegato
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated research grant: 08/10449-7 - Assessment of occurrence, toxicity/genotoxicity and degradation processes of dyes in effluents and surface water, AP.TEM

Abstract

The electrochemical research group of Universidade Estadual Paulista Júlio de Mesquita Filho Campus of Araraquara, led by Professor Dr. Maria Valnice Boldrin, has developed over the years various methodologies to promote the degradation of dyes from textile and food sectors using various catalytic materials of nanometric structure-based TiO2. Continuing with this line of research we are investigating new materials capable of increasing the capacity of absorption of radiation in the visible region of the solar spectrum through structural modifications on the surface of TiO2. In this context, it is intended to prepare materials nanotubulares TiO2 using the technique of anodic oxidation and modify its surface by inserting Sb2S3 particles in order to increase the percentage of absorption in the visible region, thereby increasing the performance of the catalyst the process of degradation of dyes used in the cosmetics sector. (AU)

Scientific publications

(4)

(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)

BESSEGATO, G. G.; COOKE, M. D.; CHRISTENSEN, P. A.; WOOD, D.; ZANONI, M. V. B.. Synthesis and electrochemical characterization of Si/TiO2/Au composite anode: Efficient oxygen evolution and hydroxyl radicals generation. Electrochimica Acta, v. 370, FEB 20 2021. (15/00822-6, 14/03679-7, 12/18357-0)

BESSEGATO, GUILHERME GARCIA; CARDOSO, JULIANO CARVALHO; DA SILVA, BIANCA FERREIRA; BOLDRIN ZANONI, MARIA VALNICE. Enhanced photoabsorption properties of composites of Ti/TiO2 nanotubes decorated by Sb2S3 and improvement of degradation of hair dye. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v. 276, p. 96-103, FEB 15 2014. (08/10449-7, 12/18357-0)

BESSEGATO, GUILHERME G.; DE ALMEIDA, LUCIO C.; FERREIRA, SERGIO L. C.; BOLDRIN ZANONI, MARIA VALNICE. Experimental design as a tool for parameter optimization of photoelectrocatalytic degradation of a textile dye. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 7, n. 4, AUG 2019. (08/10449-7, 11/21606-9, 14/50945-4, 15/18109-4, 12/18357-0, 14/03679-7)

DE CASTRO VIANA PEREIRA, ELAINE RENATA; BESSEGATO, GUILHERME GARCIA; YAMANAKA, HIDEKO; BOLDRIN ZANONI, MARIA VALNICE. Determination of Quercetin by a Siloxane-Polyester/Poly-L-Lysine Nanocomposite Modified Glassy Carbon Electrode. Analytical Letters, v. 49, n. 9, p. 1398-1411, 2016. (12/18357-0, 08/10449-7)