One-pot Hydrothermal Synthesis of Bi2O3/BiVO4 Composites with Highly Efficient Visible-light Photocatalytic Activity

DOI

10.2991/iceesd-18.2018.205How to use a DOI?

Keywords

One-pot synthesis; Bi2O3/BiVO4 composite; Hydrothermal; Photocatalytic activity

Abstract

Porous peanut-like Bi2O3/BiVO4 composites with different Bi/V molar ratios have been synthesized by a one-pot hydrothermal synthesis method. The samples were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), UV-vis diffuse reflectance spectra (DRS), Fourier-transform infrared spectra (FTIR) and photoluminescence spectra (PL). Either monoclinic BiVO4 or monoclinic Bi2O3 phase without other impurities was detected in the as-synthesized composite samples. DRS showed that Bi2O3/BiVO4 composites exhibited stronger absorption in the visible range with a steep absorption edge compared with the pure BiVO4. The PL intensity of the Bi2O3/BiVO4 composites were lower than that of pure BiVO4. Photocatalytic degradation of Methyle Orange (MO) showed the sample of Bi2O3/BiVO4 composite with Bi:V molar ratio of 1.6:1 exhibited the highest photocatalytic activity and good stability.

Copyright

© 2018, 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  - Wentao Yi
AU  - Chunyan Yan
AU  - Han Zhang
AU  - Xiaoxia Wu
PY  - 2018/05
DA  - 2018/05
TI  - One-pot Hydrothermal Synthesis of Bi2O3/BiVO4 Composites with Highly Efficient Visible-light Photocatalytic Activity
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 1123
EP  - 1127
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.205
DO  - 10.2991/iceesd-18.2018.205
ID  - Yi2018/05
ER  -