POM-Mediated Synthesis of Ag/PW[sub.12]/g-C[sub.3]N[sub.4] Nanocomposite Exhibiting Enhanced Photocatalytic Performance Under Visible Light

• Published in: Catalysts 2024-12, Vol.14 (12)
• Main Authors: Liu, Huimin, Yu, Qiuci, Chen, Wei, Tang, Shuge, Feng, Xiaojia, Ma, Chi, Tian, Linlin
• Format: Article
• Language: English
• ISSN: 2073-4344; 2073-4344
• DOI: 10.3390/catal14120912

The photoreduction method was utilized to synthesize the Ag/PW[sub.12]/g-C[sub.3]N[sub.4] nanocomposite. The polyanion PW[sub.12]O[sub.40] [sup.3−] served as the photoreductant, and as a stabilizer and protectant for Ag nanoparticles. TEM images reveals that Ag nanoparticles with a size of approximately 5 nm were modified on the surface of g-C[sub.3]N[sub.4]. Photocatalytic experiments confirm that Ag/PW[sub.12]/g-C[sub.3]N[sub.4], with the mass ratio of Ag[sub.3]PW[sub.12]O[sub.40] to g-C[sub.3]N[sub.4] nanosheets at 30%, exhibits high efficiency and durability in the photodegradation of Rhodamine B. Research on the photocatalytic mechanism indicates that decorating PW[sub.12]O[sub.40] [sup.3−] and Ag nanoparticles on the surface of g-C[sub.3]N[sub.4] nanosheets is beneficial for improving the separation of electron–hole pairs and enhancing the capability for visible light absorption.