纳米ZnO的形貌对光催化降解焦炭废水效果的研究  

Study of morphology of nano-ZnO on photocatalytic degradation effect of coke wastewater

作　　者：黄文艺 黄秋梅 王崇罡 谭嘉麟 吕晓威 程昊 李利军 HUANG Wen-yi;HUANG Qiu-mei;WANG Chong-gang;TAN Jia-lin;L Xiao-wei;CHENG Hao;LI Li-jun(Guangxi Key Laboratory of Green Processing of Sugar Resources,College of Biological and Chemical Engineering,Guangxi University of Science and Technology,Liuzhou 545006,China;Province and Ministry Co-sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry,Nanning 530004,China)

机构地区：[1]广西科技大学生物与化学工程学院广西糖资源绿色加工重点实验室,广西柳州545006 [2]蔗糖产业省部共建协同创新中心,广西南宁530004

出　　处：《应用化工》2019年第11期2611-2615,共5页Applied Chemical Industry

基　　金：国家自然科学基金地区科学基金项目(31560466);广西高等学校高水平创新团队及卓越学者计划资助项目(桂教人[2014]7号);广西科技大学博士启动基金项目(12Z04)

摘　　要：制备了片状多孔、花状、球状、棒状和菱形的纳米ZnO粒子,采用X射线衍射仪(XRD)、场发射扫描电子显微镜(FE-SEM)进行表征,并研究了片状多孔、花状、球状、棒状和菱形的纳米ZnO颗粒对焦炭废水的降解以及其不同形貌对光催化处理焦炭废水效果的影响。结果表明,不同形貌纳米ZnO的光催化降解焦炭废水能力大小顺序为:片状多孔>花状>球状>棒状>菱形,当片状多孔纳米ZnO的加入量为焦炭废水质量的2%,降解时间为0.5 h,其吸附性能与催化效果达到最佳。Nano-ZnO particles with sheet-like nanoporous,flower,spherical,rods and diamonds morphologies were prepared.The samples were characterized by X-ray diffraction(XRD) and field emission scanning electron microscopy(FE-SEM).The effects of sheet-like nanoporous,flower-like,spherical,rod-like and diamonds nano-ZnO particles on the degradation of coke wastewater and the effects of different morphologies on photocatalytic treatment of coke wastewater were studied.The results show that the order of photocatalytic degradation ability of coke wastewater by different morphologies of nano-ZnO is:sheet-like porous>flower-like>spherical>rod-shaped>diamond,when the amount of sheet-like porous nano-ZnO is 2% of the quality of coke wastewater,the degradation time is 0.5 h,and its adsorption performance and catalytic effect reach the best.

关 键 词：ZnO 形貌 光催化 焦炭废水 

分 类 号：TQ132.4[化学工程—无机化工] O649[理学—物理化学]