Synthesis and photocatalytic property of a novel Ag2S/Bi12O17Cl2 photocatalyst

• Published in: Optical materials 2023-03, Vol.137, p.113557, Article 113557
• Main Authors: Zhao, Yalan, Liu, Ting, Si, Weiwei, Cui, Lishuang, Shi, Lei
• Format: Article
• Language: English
• Subjects: Ag2S; Bi12O17Cl2; Degradation; Visible-light photocatalysis
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2023.113557

Using Bi12O17Cl2, AgNO3 and Na2S as raw materials, a new Ag2S/Bi12O17Cl2 composite with solar response was prepared by coprecipitation method. The Ag2S/Bi12O17Cl2 was characterized through XRD, XPS, SEM, PL and photocurrent, etc. The photocatalytic degraded efficiency of Ag2S/Bi12O17Cl2 for rhodamine B and crystal violet was investigated under simulated sunlight. Moreover, the results show that compared with pure Bi12O17Cl2 and Ag2S, Ag2S/Bi12O17Cl2 composites can effectively promote the separation of photogenerated charge and enhance light absorption ability. The photocatalytic degraded efficiency was greatly improved and kept stability. Finally, combined with the electronic band structures of Ag2S and Bi12O17Cl2, a reasonable mechanism was speculated. Ag2S/Bi12O17Cl2 heterojunction photocatalyst with excellent photocatalytic performance was prepared. [Display omitted] •Ag2S/Bi12O17Cl2 photocatalyst has been synthesized for the first time.•Ag2S/Bi12O17Cl2 exhibits accelerated the separation rate of photoinduced carriers.•Ag2S/Bi12O17Cl2 shows good photocatalytic activity under visible light.•Ag2S/Bi12O17Cl2 shows good stability.