Novel CaCO3g-C3N4 composites with enhanced charge separation and photocatalytic activity
Joint Authors
Zhang, Meng
Dong, Fan
Hu, Xueli
Jiang, Xue
Peng, Yazhou
He, Youzhou
Lu, Peng
Zhang, Zhi
Fu, Min
Li, Yujie
Source
Journal of Saudi Chemical Society
Issue
Vol. 23, Issue 8 (31 Dec. 2019), pp.1109-1118, 10 p.
Publisher
Publication Date
2019-12-31
Country of Publication
Saudi Arabia
No. of Pages
10
Main Subjects
Abstract EN
A novel CaCO3/graphitic carbon nitride (g-C3N4) photocatalyst was synthesized for the first time via a facile calcination method using CaCO3 and melamine as precursors.
The as-prepared samples were characterized using various techniques, such as scanning and transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, as well as Fourier-transform infrared, X-ray photoelectron, photoluminescence, and UV–vis diffuse reflectance spectroscopy.
The results of the experiments confirm the successful coupling of CaCO3 to g-C3N4.
The photocatalytic activity of the synthesized CaCO3/g-C3N4 composites was evaluated by assessing their performance in the photocatalytic degradation of crystal violet (CV) in water under visible light irradiation.
The analysis shows that CaCO3/g-C3N4 exhibits higher photocatalytic activity towards CV degradation (76.0%) than pristine g-C3N4 (21.6%) and CaCO3 (23.2%).
Radical trapping and electron spin resonance experiments show that hydroxyl radicals ( OH) and holes (h+) are the key reactive species in the photocatalytic process.
The enhanced photocatalytic activity of the composite is mainly attributed to the efficient separation rate of electron-hole pairs achieved through the incorporation of CaCO3.
American Psychological Association (APA)
Lu, Peng& Li, Yujie& Zhang, Meng& Jiang, Xue& Fu, Min& Dong, Fan…[et al.]. 2019. Novel CaCO3g-C3N4 composites with enhanced charge separation and photocatalytic activity. Journal of Saudi Chemical Society،Vol. 23, no. 8, pp.1109-1118.
https://search.emarefa.net/detail/BIM-1443234
Modern Language Association (MLA)
Lu, Peng…[et al.]. Novel CaCO3g-C3N4 composites with enhanced charge separation and photocatalytic activity. Journal of Saudi Chemical Society Vol. 23, no. 8 (Dec. 2019), pp.1109-1118.
https://search.emarefa.net/detail/BIM-1443234
American Medical Association (AMA)
Lu, Peng& Li, Yujie& Zhang, Meng& Jiang, Xue& Fu, Min& Dong, Fan…[et al.]. Novel CaCO3g-C3N4 composites with enhanced charge separation and photocatalytic activity. Journal of Saudi Chemical Society. 2019. Vol. 23, no. 8, pp.1109-1118.
https://search.emarefa.net/detail/BIM-1443234
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 1117-1118
Record ID
BIM-1443234