Ag/AgCl/Bi2MoO6 composite nanosheets: A plasmonic Z-scheme visible light photocatalyst
Ag/AgCl/Bi2MoO6 composite nanosheets: A plasmonic Z-scheme visible light photocatalyst
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DOI：
10.1016/j.catcom.2014.09.041
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发表时间：
2015-01
影响因子：
3.7
通讯作者：
Jing Zhang;C. Niu;Ji Ke;Laifeng Zhou;G. Zeng
中科院分区：
文献类型：
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作者：
Jing Zhang;C. Niu;Ji Ke;Laifeng Zhou;G. Zeng
采用水热法和沉淀-光还原法合成了Ag/AgCl/Bi 2 MoO 6三元等离子体复合材料。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、高分辨透射电子显微镜（HRTEM）、傅里叶变换红外光谱（FT-IR）和紫外-可见漫反射光谱（UV-vis DRS）对样品进行了表征。在可见光（λ ≥ 420 nm）照射下，以罗丹明B（Rh-B）水溶液为降解对象，研究了样品的光催化活性。Ag/AgCl/Bi 2 MoO 6复合材料具有比Bi 2 MoO 6更好的上级光催化活性。在能带结构分析和活性物种捕获实验结果的基础上，提出了等离子体Z-模式光催化机理。
The novel ternary plasmonic Ag/AgCl/Bi2MoO6composites were successfully synthesized by the hydrothermal and precipitation–photoreduction method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared (FT-IR) spectroscopy, and UV–vis diffuse reflectance spectroscopy (UV–vis DRS). The photocatalytic activities of the samples were measured through the decomposition of rhodamine-B (Rh-B) aqueous solution under visible-light irradiation (λ ≥ 420 nm). The Ag/AgCl/Bi2MoO6composites show superior photocatalytic activities compared with Bi2MoO6. On the basis of band structure analysis and active species trapping experimental results, a plasmonic Z-scheme photocatalytic mechanism is proposed.