X射线光电子能谱
光催化
扫描电子显微镜
漫反射红外傅里叶变换
结晶紫
材料科学
热液循环
阴极发光
分析化学(期刊)
光谱学
高压灭菌器
透射电子显微镜
核化学
化学
化学工程
复合材料
催化作用
发光
纳米技术
有机化学
医学
物理
光电子学
病理
量子力学
工程类
冶金
作者
Yu-Rou Jiang,Ho-Pan Lin,Wen‐Hsin Chung,Yong‐Ming Dai,Wanyu Lin,Chiing‐Chang Chen
标识
DOI:10.1016/j.jhazmat.2014.10.025
摘要
A series of BiOxCly/BiOmIn composites were prepared using autoclave hydrothermal methods. The composition and morphologies of the BiOxCly/BiOmIn composites were controlled by adjusting the experimental conditions: the reaction pH value, temperature, and KCl/KI molar ratio. The products were characterized using X-ray diffraction, scanning electron microscopy-electron dispersive X-ray spectroscopy, UV-vis diffuse reflectance spectroscopy, Brunauer-Emmett-Teller specific surface areas, cathodoluminescence, high-resolution transmission electron microscopy, and high-resolution X-ray photoelectron spectroscopy. The photocatalytic efficiencies of composite powder suspensions were evaluated by monitoring the crystal violet (CV) concentrations. In addition, the quenching effects of various scavengers indicated that the reactive O2(-) played a major role, and OH or h(+) played a minor role in CV degradation. The intermediates formed during the decomposition process were isolated, identified, and characterized using high performance liquid chromatography-photodiode array-electrospray ionization-mass spectrometry to elucidate the CV decomposition mechanism.
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