光催化
聚吡咯
材料科学
甲基橙
可见光谱
扫描电子显微镜
傅里叶变换红外光谱
透射电子显微镜
拉曼光谱
水溶液
化学工程
核化学
复合材料
化学
纳米技术
有机化学
催化作用
聚合物
聚合
光学
光电子学
工程类
物理
作者
Shuna Gu,Bing Li,Chongjun Zhao,Yisheng Xu,Xiuzhen Qian,Guorong Chen
标识
DOI:10.1016/j.jallcom.2011.02.121
摘要
Visible light photoactive AgCl/polypyrrole (PPy) composites were prepared via the reaction between excessive Ag+ and Cl− ions in the presence of PPy. The AgCl/PPy composites were systematically characterized using Fourier transform infrared (FTIR) spectroscopy, Raman spectra, X-ray diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscope (TEM) and Thermal gravity analysis (TGA). It was found that face-centered cubic AgCl nanocrystallite and 0.2 wt% PPy component existed in the composite and spherical AgCl/PPy nanoparticles were in the range of 200–600 nm. The AgCl/PPy composites showed higher visible light-driven photocatalytic activity and stability than that of AgCl. A photoreduction mechanism was postulated for AgCl/PPy photocatalyst on dye methyl orange (MO). The used AgCl/PPy photocatalyst was facilely regenerated by an oxidation process in aqueous FeCl3 solution.
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