Affiliation:
1. Institute of Applied Physics, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria
Abstract
The search for an alternative to replace conventional fuel has been going on for years due to the limited storage of fossil fuel and excess CO2emission from the fuel. Using H2as fuel has gained wide attention recently, as well as consequently splitting of water into hydrogen and oxygen. Seminal semiconductors such as TiO2and ZnO have their position of CB and VB in alignment with water reduction and oxidation potential, respectively, but their wide bandgap allows them to absorb only UV light of the solar spectrum. Combining narrow bandgap semiconductors or other visible light active sensitizers with TiO2/ZnO is a facile route to exploit the visible light region of the solar spectrum. In this review, I make an attempt to summarize the various photosensitizers used in combination with TiO2for water splitting with recent reports as examples.
Subject
General Materials Science
Cited by
39 articles.
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