Proceedings of the 2015 International Symposium on Energy Science and Chemical Engineering

Effects of pH on the Morphology and Photocatalytic Performance of BiVO4 Prepared Via Hydrothermal Method

Authors
Xingxing Gao, Jian Wang, Hongbo Xu, Jianglong Yu
Corresponding Author
Xingxing Gao
Available Online December 2015.
DOI
https://doi.org/10.2991/isesce-15.2015.17How to use a DOI?
Keywords
BiVO4, pH value, morphology, hydrothermal method, photocatalysis
Abstract
BiVO4 with different morphologies were synthesized via a controllable dodecylamine-assisted hydrothermal method. The effect of pH on the crystallinity, morphology and optical absorption property of BiVO4 was investigated by X-ray diffraction (XRD) scanning electron microscopy(SEM) and UV-vis Diffuse Reflectance Spectra techniques (UV-vis DRS) The photocatalytic efficiencies were evaluated by the degradation of (MB) under visible-light irradiation. It is worthy to note that the obtained monoclinic scheelite BiVO4 (m-BiVO4) prepared at pH 1 possessed a spherical microstructure, low band gap energy, and exhibited the highest photocatalytic activity of the samples, decolorizing up to 98.2 % of MB upon visible light irradiation for 4h. The reason for the different photocatalytic efficiencies of the BiVO4 samples obtained at different pH was investigated by considering the structure and morphology.
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Proceedings
2015 International Symposium on Energy Science and Chemical Engineering
Part of series
Advances in Engineering Research
Publication Date
December 2015
ISBN
978-94-6252-140-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/isesce-15.2015.17How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Xingxing Gao
AU  - Jian Wang
AU  - Hongbo Xu
AU  - Jianglong Yu
PY  - 2015/12
DA  - 2015/12
TI  - Effects of pH on the Morphology and Photocatalytic Performance of BiVO4 Prepared Via Hydrothermal Method
BT  - 2015 International Symposium on Energy Science and Chemical Engineering
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/isesce-15.2015.17
DO  - https://doi.org/10.2991/isesce-15.2015.17
ID  - Gao2015/12
ER  -