负载纳米TiO_2活性炭的原位电催化再生研究  

Study on In-situ Electro-catalytic Regeneration of Granular Activated Carbon Loaded with Nano-TiO_2

作　　者：胡晓洪[1] 徐廷国 安太成[1] 张茂林[1] 盛国英[1] 傅家谟[1] 

机构地区：[1]中国科学院有机地球化学国家重点实验室 [2]佛山市供水总公司,广东佛山528000

出　　处：《中国给水排水》2007年第3期70-73,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(40302013);广东省"十五"重大科技攻关课题(2005A30401001);佛山市科学技术基金资助项目(02060031)

摘　　要：通过溶胶—凝胶方法制备了负载TiO2的颗粒活性炭(TiO2/GAC),并以亚甲基蓝染料为处理对象,研究了不同负载比例的TiO2/GAC对亚甲基蓝的吸附性能及其采用电催化再生的可行性。试验结果表明,负载TiO2能提高颗粒活性炭的电催化再生吸附能力,且负载量越高则多次再生能力越强。采用填充TiO2/GAC(0.8∶1)的固定床处理自来水,在施加电压的情况下,可显著提高TiO2/GAC去除TOC的能力。Granular activated carbon loaded with TiO2 （TiO2/GAC） was prepared by the sol - gel process. Taking methylene blue wastewater as treatment object, the adsorption of methylene blue by TiOE/GAC at different loading ratios and the feasibility of its electro-catalytic regeneration were studied. Experimental results show that the electro-catalytic regeneration capacity is enhanced by loading TiO2 on GAC. When the greater mass is loaded, the regeneration performance is increased. A packed-bed reactor filled with TiOE/GAC at the ratio of 0.8 ： 1 can effectively remove TOC from tap water under the voltage application.

关 键 词：颗粒活性炭 二氧化钛 原位电催化再生 

分 类 号：TU991.2[建筑科学—市政工程]