Study of photoelectrochemical properties of nitrogen doped titanate nanotubes

• Grant number: 13/07017-6
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: October 01, 2013
• End date: September 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Wendel Andrade Alves
• Grantee: Juliana dos Santos de Souza Silva
• Supervisor: Dmitry Bavykin
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Institution abroad: University of Southampton, England
• Associated to the scholarship: 11/17938-6 - Study of the Photocatalytic Activity of Nitrogen-Doped Titanate Nanotubes via EPR Technique, BP.DR

Abstract

In recent decades the development of nanostructures material has increased due to its unique properties. Among these materials titanate nanotubes has been attracted much attention due to its open and mesoporous structures, high surface area, band gap energy corresponding to UV region, ion-exchange capacity, functionalization and electrical conductivity, which allows its application in conversion and energy storage devices, magnetic materials, electrocatalysis and photocatalysis. However, these materials are able to absorb UV radiation only, which is about 5% of the incident radiation from the Sun on the Earth, which influences their photocatalytic activity. This application can be also affected by recombination of photogenerated electron due the presence of vacancies in the structure.This project aims the synthesis of titanate nanotubes through hydrothermal synthesis, and then doped with nitrogen using ion-exchange methodology. The titanate nanotubes will be morphological and structural characterized and then employed in the manufacturing of electrodes to study of photoelectrochemical properties in reaction of photocatalytic oxidation of organic pollutant as well as photoassisted water split and generation of hydrogen. (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)

SOUZA, J. S.; CARVALHO, JR., W. M.; SOUZA, F. L.; PONCE-DE-LEON, C.; BAVYKIN, D. V.; ALVES, W. A.. Multihierarchical electrodes based on titanate nanotubes and zinc oxide nanorods for photoelectrochemical water splitting. JOURNAL OF MATERIALS CHEMISTRY A, v. 4, n. 3, p. 944-952, 2016. (11/17938-6, 13/07017-6, 08/57805-2, 13/12997-0)