Synthesis and application of Ti/TiO2/WO3 bicomponent nanostructured films by template and Si/TiO2/Pt by heterojunction in solar energy conversion and environmental remediation

• Grant number: 09/17346-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2010
• End date: April 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Maria Valnice Boldrin
• Grantee: Thais Tasso Guaraldo
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated scholarship(s): 12/11141-1 - Novel composite anodes using a silicon, titanium dioxide and platinum grid structure, BE.EP.DR

Abstract

This project aims to explore the use of photoelectrochemical systems based on WO3/TiO2 bicomponent semiconductor as a promising alternative for the development of a new generation of photovoltaic devices, engaging the advantages of TiO2, especially its low cost and economic availability with WO3 which is able to absorb sunlight. The objective is to obtain WO3/TiO2 nanostructured films controlled bidimensionally by cathodic electrodeposition using templates. These WO3/TiO2 electrodes will be applied on the photoeletrocatalytic oxidation of water under UV irradiation and visible light, monitoring hydrogen production and concomitantly photoeletrocatalytic oxidation of organic compounds such as methanol, ethanol and azo dye Remazol Brilliant Orange 3R to be used as a model of environmental contaminant compound.

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)

GUARALDO, T. T.; GONCALES, V. R.; SILVA, B. F.; DE TORRESI, S. I. C.; ZANONI, M. V. B.. Hydrogen production and simultaneous photoelectrocatalytic pollutant oxidation using a TiO2/WO3 nanostructured photoanode under visible light irradiation. Journal of Electroanalytical Chemistry, v. 765, p. 188-196, MAR 15 2016. (08/10449-7, 09/17346-1)

GUARALDO, T. T.; GONCALES, V. R.; SILVA, B. F.; DE TORRESI, S. I. C.; ZANONI, M. V. B.. Hydrogen production and simultaneous photoelectrocatalytic pollutant oxidation using a TiO2/WO3 nanostructured photoanode under visible light irradiation. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 765, p. 9-pg., 2016-03-15. (08/10449-7, 09/17346-1)