可见光响应型改性纳米二氧化钛催化降解生物质气化洗焦废水  

Photocatalytic Degradation of Biomass Gasification Waste Water Using Visible-light-driven Modified Nano-TiO_2 Catalysts

作　　者：李宏利[1] 冉泽朋 郝晓玮 陆强[2] 董长青[2] 

机构地区：[1]国家知识产权局专利局专利审查协作河南中心,郑州450002 [2]华北电力大学生物质发电成套设备国家工程实验室,北京102206

出　　处：《新能源进展》2015年第4期265-269,共5页Advances in New and Renewable Energy

基　　金：国家火炬计划(2013GH561645);国家自然科学基金(51276062);中央高校基本科研业务专项资金(2014ZD17)

摘　　要：制备了可见光响应型改性纳米二氧化钛催化剂,用于处理生物质气化洗焦废水,考察了催化剂改性方式对苯酚和洗焦废水COD去除的影响。实验结果表明:以Ag-C/TiO2为催化剂,在可见光下照射10h,苯酚的COD去除率可达43.5%,洗焦废水的COD去除率达26.8%;在太阳光下照射36h,洗焦废水的COD去除率达到90.9%。改性纳米Ag-C/TiO2催化剂在可见光下具有良好的催化活性,对洗焦废水有较好的处理效果。Modified nano-TiO2 catalysts were prepared and used for photocatalytic degradation of biomass gasification waste water under visible light. The effects of modification methods on COD removal of phenol and waste water were investigated. After irradiation under visible light for 10 h in the presence of Ag-C/TiO2, the COD removal of phenol was 43.5%, and the COD removal of the waste water was 26.8%. When exposed under sunlight for 36 h, the COD removal of the waste water reached 90.9%. The modified Ag-C/TiO2 exhibited high photocatalytic activity under visible light, and good capability to degrade the biomass gasification waste water.

关 键 词：洗焦废水 光催化 二氧化钛 可见光 

分 类 号：TK6[动力工程及工程热物理—生物能]