Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

The effect of the pH value on microporous TiO2/ZnO heterostructure

Authors
Tao Zeng
Corresponding Author
Tao Zeng
Available Online March 2014.
DOI
10.2991/mce-14.2014.29How to use a DOI?
Keywords
TiO2/ZnO composites; Photocatalytic; PH value; Hydrothermal treatment; Heterostructure;
Abstract

A novel microporous ZnO/TiO2 heterostructure, which consists of crystalline TiO2 decorated with amorphous ZnO, have been fabricated by a facile one-step synthetic methods. The results showed that the phase composition of the growing units and the intrinsic crystal structure are seriously controlled by the synthetic environment. Particularly, we have successfully captured the transformation process of the amorphous/crystalline heterostructure by adjusting the pH value. A microporous TiO2/ZnO composite photocatalyst consisting of crystalline TiO2 nanoparticles decorated with amorphous ZnO is fabricated by low-temperature hydrothermal treatment. And the pH value during the preparation of the new configuration photocatalyst affects the crystalline structure and BET surface area. The sample with high pH value (8~12) is favorable to the formation of an amorphous/crystalline composite structure with large micropore area and BET surface area. When the pH value is 12, the novel photocatalyst not only exhibits the excellent photocatalytic activity of hydrogen evolution from water splitting, but also has a large micropore area.

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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Volume Title
Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering
Series
Advances in Intelligent Systems Research
Publication Date
March 2014
ISBN
10.2991/mce-14.2014.29
ISSN
1951-6851
DOI
10.2991/mce-14.2014.29How to use a DOI?
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/).

Cite this article

TY  - CONF
AU  - Tao Zeng
PY  - 2014/03
DA  - 2014/03
TI  - The effect of the pH value on microporous TiO2/ZnO heterostructure
BT  - Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering
PB  - Atlantis Press
SP  - 134
EP  - 137
SN  - 1951-6851
UR  - https://doi.org/10.2991/mce-14.2014.29
DO  - 10.2991/mce-14.2014.29
ID  - Zeng2014/03
ER  -