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Cu-Bi₂WO₆的制备及应用于光催化氧化含酚废水的研究

The Preparation of Cu-Bi₂WO₆ and Its Enhanced Photocatalytic Properties for Degradation of Phenol-containing Wastewater

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【Author】 WANG Jing,GAO Xiaoming,FU Feng,ZHANG Liping,WU Yufei(Shaanxi Key Laboratory of Chemical Reaction Engineering,College of Chemistry and Chemical Engineering, Yan’an University,Yan’an 716000)

【机构】延安大学化学与化工学院,陕西省化学反应工程重点实验室；

【摘要】以Bi(NO3)3.5H2O和Na2WO4.2H2O为原料,采用水热法合成了掺杂型可见光催化剂Cu-Bi2WO6,并对其进行X射线粉末衍射(XRD)、紫外-可见漫反射(UV-Vis DRS)、扫描电子显微镜(SEM)表征。结果表明,Cu-Bi2WO6在不同合成条件下呈现多孔微球和纳米片状结构。以苯酚水溶液为目标降解物,研究了在可见光催化作用下Cu-Bi2WO6的催化性能,实验结果表明掺杂型Cu-Bi2WO6具有比纯Bi2WO6更高的催化活性。更多还原

【Abstract】 A semiconductor-based Cu-doped Bi2WO6 photocatalyst was synthesized successfully via hydrothermal method.The as-prepared samples were characterized by XRD,UV-vis DRS,SEM.The result revealed that Cu-Bi2WO6 presented structure of porous microspheres and nanosheet,and crystal structure of orthorhombic phase.The photocatalytic properties were evaluated by degrading phenol-containing wastewater under visible light irradiation.The result showed that Cu-Bi2WO6 could display an improved photocatalytic oxidative ability than pure Bi2WO6.更多还原