介孔掺锑二氧化锡粒子电极的制备及表征  

Preparation and Characterization of the Mesoporous Sb-SnO2 Particle Electrode

作　　者：吴瑞芹 侯锋 邵彦青 张术宝 庞洪涛 卢先春 Wu Ruiqin;Hou Feng;Shao Yanqing;Zhang Shubao;Pang Hongtao;Lu Xianchun(SDIC Xinkai Water Environment Investment Co.,Ltd.,Beijing 101199,China)

机构地区：[1]国投信开水环境投资有限公司,北京101199

出　　处：《广东化工》2020年第22期7-11,共5页Guangdong Chemical Industry

摘　　要：三维电化学系统是在传统二维电化学系统的基础上,额外加入第三维粒子电极以增强氧化效率的一种新型电化学系统,近年来逐渐成为污水处理领域研究热点。粒子电极是填充在阴、阳极之间的颗粒状材料,在合适的电压下,这些粒子材料会被极化形成无数带电的微型电极。本研究采用传统的常温常压干燥法,以正硅酸四乙酯(TEOS)为改性剂,制备了高比表面积Sb-SnO2干凝胶。通过x射线散射和透射电镜等各类测试表征研究了硅改性对干凝胶结构形成的影响。并将Sb-SnO2干凝胶作为粒子电极应用于三维电化学系统,考察了Sb-SnO2粒子电极对电化学体系电流效率的影响。Three-dimensional(3D)electrochemical system have remained great interest for the treatment of aqueous pollutants.It is established based on two-dimensional(2D)electrochemical system with similar electrode materials and treatment processes,except the particle electrode.Particle electrode is basically granular materials,which are filled between two counter electrodes[1].At an appropriate vol-tage,these particles will be polarized to form a large number of charged microelectrodes.In this study,a crack-free Sb-SnO2 xerogel was prepared based on the traditional APD method.The effects of Si modifying on complete structure of the xerogels with minimum dimensional shrinkage were investigated in detail by X-ray scattering(SAXS),transmission electron microscopy(TEM).In addition,degradation capacity of flutriafol using 3D electrochemical system with the Sb-SnO2 xerogel as particle electrodes was examined.

关 键 词：三维电化学 粒子电极 Sb-SnO2干凝胶 

分 类 号：TQ[化学工程]