Preparation and characterization of a novel ZnO/TiO2 composite catalyst with amorphous/crystalline heterostructure

DOI

10.2991/mce-14.2014.28How to use a DOI?

Keywords

Amorphous/crystalline;composite; Heterostructure; Ti/Zn ratio; Hydrothermal treatment

Abstract

Semiconductor photocatalysts have recently received great interests owing to their wide applications in environmental purification, solar energy conversion, and water splitting. However, enhancing the photocatalytic efficiency of TiO2 to meet the practical application requirements is still a challenge because of the bottleneck of the poor quantum yield caused by the rapid recombination of photogenerated electrons and holes. Much effort has been made to increase the electron-hole pair separation efficiency. Here, A novel ZnO/TiO2 amorphous/crystalline composite catalyst has been prepared by a low-temperature hydrothermal method. Based on the XRD and HRTEM analysis, there are amounts of anatase surrounded by amorphous ZnO when the mole ratio of Zn to Ti is 1/3, which could help improve the photocatalytic activity of the ZnO/TiO2 amorphous/crystalline composite catalyst. These encouraging nding could be expanded to other system or reactions and could open up a new direction in catalysis.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Tao Zeng
PY  - 2014/03
DA  - 2014/03
TI  - Preparation and characterization of a novel ZnO/TiO2 composite catalyst with amorphous/crystalline heterostructure
BT  - Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering
PB  - Atlantis Press
SP  - 130
EP  - 133
SN  - 1951-6851
UR  - https://doi.org/10.2991/mce-14.2014.28
DO  - 10.2991/mce-14.2014.28
ID  - Zeng2014/03
ER  -