Fabrication and characterization of flower-like BiOI/Pt heterostructure with enhanced photocatalytic activity under visible light irradiation

被引：19

作者：

Zhang, Yifan ^{[1
]}

Park, Soo-Jin ^{[1
]}

机构：

[1] Inha Univ, Dept Chem & Chem Engn, 100 Inharo, Incheon 402751, South Korea

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2017年 / 253卷

基金：

新加坡国家研究基金会;

关键词：

Flower-like; Pt/BiOI composites; Phtocatalytic activity; Visible light; RhB; Phenol; IN-SITU SYNTHESIS; HYDROGEN-PRODUCTION; QUANTUM DOTS; BISPHENOL-A; DEGRADATION; NANOCOMPOSITES; PERFORMANCE; NANOFIBERS; SUPERCAPACITOR; NANOPARTICLES;

D O I：

10.1016/j.jssc.2017.06.029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Flower-like Pt/BiOI composite nanosheets were successfully constructed by a photo-reduction method. The nanosized Pt/BiOI composites exhibited considerably enhanced photocatalytic performance for rhodamine B (RhB) and phenol degradation under visible-light irradiation (lambda > 420 nm) when compared with that of pure BiOI. Various characterization methods were used to evaluate the mechanism of enhanced photocatalytic activity. The highest photocatalytic activity was achieved when the composites had a Pt content of 3 wt%, which is 17.8 times and 9 times higher than that of pure BiOI, respectively. The enhanced catalytic efficiency was attributed to the low rate of recombination of electron-hole pairs. Superoxide radicals and holes were found to be crucial species during the photocatalytic degradation. A possible mechanism of photocatalysis was also proposed based on the results of experiments.

引用

页码：421 / 429

页数：9

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