SnO2-ZnO/煤矸石复合物光催化降解有机磷农药的性能研究  

Study on the Photocatalytic Degradation of Organophosphorus Pesticides by SnO2-ZnO/coal Gangue Composite

作　　者：李慧婉[1] 和东芹[1] 谢娟 徐晓阳 杜红霞[2] 赵树春[2] Li Huiwan;He Dongqin;Xie Juan;Xv Xiaoyang;Du Hongxia;Zhao Shuchun(Department of Food and Biological Engineering,Handan Polytechnic College,Handan,Hebei,China;College of Chemistry and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang,Hebei,China)

机构地区：[1]邯郸职业技术学院食品与生物工程系,河北邯郸056001 [2]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《矿产综合利用》2020年第4期185-190,共6页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金(21206026);河北省自然科学基金(E2019208211);河北科技大学引进人才科研启动基金(1181264)。

摘　　要：以SnCl4、ZnCl2、煤矸石和NaOH为原料,采用沸腾回流法制备了SnO2和ZnO摩尔比为1:1的SnO2-ZnO/煤矸石复合物。用场发射扫描电子显微镜(FESEM)、X射线衍射仪(XRD)及紫外-可见漫反射光谱(UV-Vis DRS)等手段对产物进行表征。在紫外光照下,考察了所制SnO2-ZnO/煤矸石复合物催化降解敌敌畏、乐果、敌百虫、乙酰甲胺磷、马拉硫磷五种常见有机磷农药的效果。结果表明,将SnO2-ZnO复合物负载在煤矸石表面,不仅可有效提高SnO2-ZnO复合物的光催化性能,还能实现催化剂的多次回收再利用。SnO2-ZnO/coal gangue composite with SnO2:ZnO mole ratio of 1:1 was successfully synthesized via refluxing method,using SnCl4,ZnCl2,coal gangue and NaOH as reactants.The products were characterized by Field emission scanning electron microscopy(FESEM),X-ray powder diffraction(XRD)and UV-Vis diffuse reflectance spectra(UV-Vis DRS).The photocatalytic activity of as-prepared SnO2-ZnO/coal gangue composite for degradation of five organophosphorus pesticides,such as dichlorvos,dimethoate,trichlorfon,acephate and malathion,was investigated under ultraviolet irradiation.Experimental results indicated that loading SnO2-ZnO composite on the surface of coal gangue can not only effectively improve the photocatalytic performance of SnO2-ZnO composite,but also realize recovery and reuse of SnO2-ZnO/coal gangue composite photocatalyst.

关 键 词：SnO2-ZnO 煤矸石 复合物 光催化 有机磷农药 

分 类 号：TD989[矿业工程—选矿]