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Preparation and Properties of WO3/g-C3N4 Composite Photocatalyst(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2023年02期
Page:
40-46
Research Field:
化学工程与技术
Publishing date:

Info

Title:
Preparation and Properties of WO3/g-C3N4 Composite Photocatalyst
Author(s):
Li Fangfang; Su Lei; Su Fu; Lin Jun
(School of Chemistry and Materials Science,Nanjing Normal University,Nanjing 210023,China)
Keywords:
WO3/g-C3N4; Z-scheme heterojunction; photocatalytic degradation; tetracycline hydrochloride
PACS:
O643.3
DOI:
10.3969/j.issn.1672-1292.2023.02.006
Abstract:
In this paper,WO3/g-C3N4 Z-scheme heterojunction is successfully synthesized by solvothermal method. XRD,XPS and SEM are used to characterize the composition and morphology of the materials,whereas the photocatalytic performance and their ability to degrade tetracycline hydrochloride(TC)are tested. Compared with WO3 and g-C3N4,the degradation effect of WO3/g-C3N4 are significantly improved and WCN-3(WO3/g-C3N4-3)have the best ability. The enhanced photocatalytic activity of composite material can be attributed to its larger specific surface area,which provides more active sites. PL also shows that electron-hole pair recombination is obvious restrained. In addition,radicals capture experiments confirm that the main active components of photocatalytic degradation are superoxide ion radicals(·O-2)and holes(h+).

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Last Update: 2023-06-15