Preparation of WO3/g-C3N4 composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation

M. A. Gondal; A. A. Adesida; S. G. Rashid; Shan Shi; Rashid Khan; Z. H. Yamani; Kai Shen; Qingyu Xu; Zaki S. Seddigi; Xiaofeng Chang

doi:10.1007/s11144-014-0787-y

Preparation of WO₃/g-C₃N₄ composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation

M. A. Gondal^*
, A. A. Adesida
, S. G. Rashid
, Shan Shi
, Rashid Khan
, Z. H. Yamani
, Kai Shen
, Qingyu Xu
, Zaki S. Seddigi
, Xiaofeng Chang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

A series of WO₃/g-C₃N₄ composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO₃/g-C₃N₄ composite photocatalysts were investigated by X-ray diffraction, UV–Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO₃, g-C₃N₄ and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO₃/g-C₃N₄ composite, due to the high carrier separation efficiency at the interface between WO₃ and g-C₃N₄. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.

Original language	English
Pages (from-to)	357-367
Number of pages	11
Journal	Reaction Kinetics, Mechanisms and Catalysis
Volume	114
Issue number	1
DOIs	https://doi.org/10.1007/s11144-014-0787-y
State	Published - 17 Jan 2015

Bibliographical note

Publisher Copyright:
© 2014, Akadémiai Kiadó, Budapest, Hungary.

Keywords

Composite
Heterojunction
Photocatalytic
Rhodamine B
WO
g-CN

ASJC Scopus subject areas

Catalysis
Physical and Theoretical Chemistry

Access to Document

10.1007/s11144-014-0787-y

Cite this

Gondal, M. A., Adesida, A. A., Rashid, S. G., Shi, S., Khan, R., Yamani, Z. H., Shen, K., Xu, Q., Seddigi, Z. S., & Chang, X. (2015). Preparation of WO₃/g-C₃N₄ composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation. Reaction Kinetics, Mechanisms and Catalysis, 114(1), 357-367. https://doi.org/10.1007/s11144-014-0787-y

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title = "Preparation of WO3/g-C3N4 composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation",

abstract = "A series of WO3/g-C3N4 composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO3/g-C3N4 composite photocatalysts were investigated by X-ray diffraction, UV–Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO3, g-C3N4 and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO3/g-C3N4 composite, due to the high carrier separation efficiency at the interface between WO3 and g-C3N4. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.",

keywords = "Composite, Heterojunction, Photocatalytic, Rhodamine B, WO, g-CN",

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Gondal, MA, Adesida, AA, Rashid, SG, Shi, S, Khan, R, Yamani, ZH, Shen, K, Xu, Q, Seddigi, ZS & Chang, X 2015, 'Preparation of WO₃/g-C₃N₄ composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation', Reaction Kinetics, Mechanisms and Catalysis, vol. 114, no. 1, pp. 357-367. https://doi.org/10.1007/s11144-014-0787-y

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T1 - Preparation of WO3/g-C3N4 composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation

AU - Gondal, M. A.

AU - Adesida, A. A.

AU - Rashid, S. G.

AU - Shi, Shan

AU - Khan, Rashid

AU - Yamani, Z. H.

AU - Shen, Kai

AU - Xu, Qingyu

AU - Seddigi, Zaki S.

AU - Chang, Xiaofeng

PY - 2015/1/17

Y1 - 2015/1/17

N2 - A series of WO3/g-C3N4 composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO3/g-C3N4 composite photocatalysts were investigated by X-ray diffraction, UV–Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO3, g-C3N4 and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO3/g-C3N4 composite, due to the high carrier separation efficiency at the interface between WO3 and g-C3N4. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.

AB - A series of WO3/g-C3N4 composite photocatalysts with different mass ratios were prepared by a simple pyrolysis method, using tungstic acid and melamine as the starting materials. The microstructure and optical properties of as-synthesized WO3/g-C3N4 composite photocatalysts were investigated by X-ray diffraction, UV–Vis diffuse reflection spectroscopy and photoluminescence spectroscopy. Compared with WO3, g-C3N4 and well-known commercial photocatalysts, an improved visible-light-induced photodegradation of Rhodamine B and methyl tertiary butyl ether in aqueous solution was observed on WO3/g-C3N4 composite, due to the high carrier separation efficiency at the interface between WO3 and g-C3N4. Moreover, the photoactivity and photostability of catalyst after many runs was also evaluated.

KW - Composite

KW - Heterojunction

KW - Photocatalytic

KW - Rhodamine B

KW - WO

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