Enhanced Photocatalytic Activity and Mechanism of La3+- Doped BiPO4

DOI

10.2991/mmeceb-15.2016.122How to use a DOI?

Keywords

Bismuth Phosphate; Lanthanum; Photocatalytic activity; Methylene Blue

Abstract

La3+- doped BiPO4 photocatalysts were synthesized by a hydrothermal method. The morphologies, structures, components, and light absorption properties of the photocatalysts were evaluated using XRD, FESEM, EDX, BET, XPS, and DRS techniques. La-doping could improve the photocatalytic activity of BiPO4 for degrading methylene blue under ultraviolet irradiation, The apparent reaction rate of La3+-BiPO4 was 0.31min-1, which was 3.4 times higher than that of pure BiPO4. The outstanding photocatalytic activity could be mainly attributed to the higher valence band position and more effective electron-hole pair separation, ensured by Mott-Schottky and EIS test. Moreover, radical scavenger experiments confirmed that holes constituted the active species.

Copyright

© 2016, 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  - YuLian Quan
PY  - 2015/12
DA  - 2015/12
TI  - Enhanced Photocatalytic Activity and Mechanism of La3+- Doped BiPO4
BT  - Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology
PB  - Atlantis Press
SP  - 617
EP  - 624
SN  - 2352-5401
UR  - https://doi.org/10.2991/mmeceb-15.2016.122
DO  - 10.2991/mmeceb-15.2016.122
ID  - Quan2015/12
ER  -