Enhancement of cyanide photocatalytic degradation using sol-gel ZnO sensitized with cobalt phthalocyanine
Enhancement of cyanide photocatalytic degradation using sol-gel ZnO sensitized with cobalt phthalocyanine
复制标题
DOI：
10.1007/s10971-009-2145-5
复制
发表时间：
2010-04-01
影响因子：
2.5
通讯作者：
Hernandez-Ramirez, A.
中科院分区：
文献类型：
--
作者：
Salinas-Guzman, R. R.;Guzman-Mar, J. L.;Hernandez-Ramirez, A.
在这项工作中，光催化降解氰化物在水悬浮液中，以确定溶胶-凝胶法制备的ZnO，浸渍与钴（II）酞菁（CoPc），作为敏化剂的光催化活性。采用扫描电子显微镜（SEM）、X射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）和紫外-可见漫反射光谱（UV-Vis）对催化剂进行了表征。使用BET方法由氮吸附等温线计算比表面积。与市售ZnO和TiO 2 Degussa P25光催化剂相比，用酞菁钴敏化的溶胶-凝胶法制备的ZnO催化剂在可见光照射下表现出最高的氰化物降解活性。
In this work, the photodegradation of cyanide in aqueous suspension was used to determine the photocatalytic activity of sol-gel prepared ZnO which was impregnated with the Co (II) phthalocyanine (CoPc), as sensitizer. The prepared catalyst was characterized by Scanning Electron Microscopy (SEM) with Energy Dispersed Spectroscopy (EDS) detector, X-Ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR) and Diffuse UV-Vis Reflectance spectroscopy. Specific surface area was calculated from nitrogen adsorption isotherm using BET method. Compared with commercial ZnO and TiO2 Degussa P25 photocatalysts, the sol-gel prepared ZnO catalyst sensitized with cobalt phthalocyanine showed the highest activities for degradation of cyanide in aqueous solution under visible light irradiation.