Pt nanoparticles decorated rose-like Bi2O2CO3 configurations for efficient photocatalytic removal of water organic pollutants

• Published in: RSC advances Vol. 8; no. 2; pp. 914 - 920
• Main Authors: Chen, Huijuan, Zhou, Zhongfu, G Neville Greaves, Nigar, Salma, Cao, Huaqiang, Zhao, Tingkai, Lu, Xionggang
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01-01-2018; The Royal Society of Chemistry
• Subjects: Catalysis; Catalytic activity; Chemistry; Configurations; Decomposition reactions; Electromagnetic absorption; Free radicals; Nanoparticles; Optical properties; Photocatalysis; Photochemistry; Pollutants
• ISSN: 2046-2069
• DOI: 10.1039/c7ra12236e

Pt nanoparticles decorated with rose-like Bi2O2CO3 configurations were synthesized via a simple photoreduction method at room temperature. The structure, morphology, optical and electronic properties, and photocatalytic performance of the as-prepared materials were characterized. Compared to pure Bi2O2CO3, the Pt/Bi2O2CO3 photocatalysts show better performance in decomposing RhB, BPA and OTC under visible light (λ > 420 nm). The enhanced photocatalytic activity of Pt/Bi2O2CO3 could be attributed to the modification in light absorption (λ > 420 nm) charge migration and the separation of photo-generated electrons (e−) and holes (h+). Free radical trapping experiments demonstrated that the main active species of the catalytic reaction are different in decomposing RhB and BPA.