Photocatalytic and photoelectrochemical oxidation mechanisms of methanol on TiO2 in aqueous solution

被引：50

作者：

Ahmed, Amira Y. ^{[1
]}

Kandiel, Tarek A. ^{[1
]}

Ivanova, Irina ^{[2
]}

Bahnemann, Detlef ^{[2
]}

机构：

[1] Sohag Univ, Fac Sci, Dept Chem, Sohag 82524, Egypt

[2] Leibniz Univ Hannover, Inst Fuer Tech Chem, Photocatalysis & Nanotechnol Res Unit, D-30167 Hannover, Germany

来源：

APPLIED SURFACE SCIENCE | 2014年 / 319卷

关键词：

Photocatalysis; Titanium dioxide; Methanol photooxidation; Water photooxidation; INTERFACIAL HOLE TRANSFER; CHARGE-TRANSFER PROCESSES; HYDROGEN-PRODUCTION; TITANIUM-DIOXIDE; PHOTONIC EFFICIENCY; QUANTUM YIELD; PHOTOOXIDATION REACTION; FORMALDEHYDE FORMATION; WATER PHOTOOXIDATION; FLASH-PHOTOLYSIS;

D O I：

10.1016/j.apsusc.2014.07.134

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Methanol is an available, small, and colorless molecule, which can be used for the photocatalytic activity evaluation without the sensitization problem associated with most dye molecules. Thus, TiO2 suspended in aqueous methanol solutions is commonly employed as a model test for the photocatalytic degradation of organic pollutants in aerobic system or for photocatalytic hydrogen production in absence of molecular oxygen. It is, hence, important to explore the mechanism of its photocatalytic and photoelectrochemical oxidation on TiO2 in aqueous solution. In this mini-review, the possible mechanisms for water and methanol oxidation on TiO2 will therefore be presented and discussed. (C) 2014 Elsevier B. V. All rights reserved.

引用

页码：44 / 49

页数：6

共 55 条

[1] Comparison of the photoelectrochemical oxidation of methanol on rutile TiO2 (001) and (100) single crystal faces studied by intensity modulated photocurrent spectroscopy [J].