Photocatalytic Heteropolyacid/CdS (HPA/CdS) Composite for Degradation of Safranine T (ST)

DOI

10.2991/aeece-15.2015.52How to use a DOI?

Keywords

CdS; heteropolyacid; composite material; Safranine T; photocatalysis

Abstract

A series of phosphotungstic acid and phosphomolybdic acid loaded CdS composites (HPW/CdS and HPMo/CdS) were prepared by impregnation method, and then characterized by FT-IR, XRD and TEM. The influences of different loading amounts on degradation rate of Safranine T under ultraviolet (UV) light irradiation were discussed. And, the changes of absorption peak and absorption intensity of Safranine T (ST) solution during the degradation process was monitored on UV-Vis spectrometer. The results show that synergistic effects exist in HPA/CdS and lead to improved photocatalytic degradation effects in comparison with corresponding CdS or heteropolyacid. HPMo/CdS with mass ratio of HPMo of 30 wt% exhibiting the best photocatalytic activity for degradation of ST under acid condition, with the degradation rate of 84.3% under UV light irradiation for 120 min, and UV-Vis spectrum show that new substance is formed during the degradation process.

Copyright

© 2015, 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  - Shuang Song
AU  - Long Fan
AU  - Shuyuan Xie
AU  - Jinghai Liu
AU  - Limei Duan
PY  - 2015/09
DA  - 2015/09
TI  - Photocatalytic Heteropolyacid/CdS (HPA/CdS) Composite for Degradation of Safranine T (ST)
BT  - Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering
PB  - Atlantis Press
SP  - 257
EP  - 262
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-15.2015.52
DO  - 10.2991/aeece-15.2015.52
ID  - Song2015/09
ER  -