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

被引：9
|
作者：
Chen, Huijuan [1 ]
Zhou, Zhongfu [2 ,3 ,4 ]
Greaves, G. Neville [4 ,5 ,6 ]
Nigar, Salma [1 ]
Cao, Huaqiang [7 ]
Zhao, Tingkai [8 ]
Lu, Xionggang [2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
[2] Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200072, Peoples R China
[3] Shanghai Univ, Key Lab Mat Microstruct, Shanghai 200444, Peoples R China
[4] Aberystwyth Univ, Dept Phys, Aberystwyth SY23 3BZ, Dyfed, Wales
[5] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Hubei, Peoples R China
[6] Univ Cambridge, Dept Mat Sci & Met, Charles Babbage Rd, Cambridge CB2 3QZ, England
[7] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[8] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China
来源：
RSC ADVANCES | 2018年 / 8卷 / 02期
关键词：
LIGHT; MICROSPHERES; DEGRADATION; PERFORMANCE; COMPOSITE; AU; OXIDATION; CATALYST; UV;
D O I：
10.1039/c7ra12236e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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 (lambda > 420 nm). The enhanced photocatalytic activity of Pt/Bi2O2CO3 could be attributed to the modification in light absorption (lambda > 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.
引用
收藏
页码：914 / 920
页数：7
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