纳米TiO_2/矿物复合光催化降解染料废水研究  

Study on Degradation of Azo Dye Wastewater with Nano-TiO_2/Kaolinte Composition Photocatalyst

作　　者：王召东[1] 熊毕华[2] 郝骞[2] 曲艺[2] 白春华[2] 郭高丽[2] 

机构地区：[1]平顶山工学院,平顶山467000 [2]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《武汉理工大学学报》2006年第8期54-57,61,共5页Journal of Wuhan University of Technology

摘　　要：直接热合Fe2O3制备纳米TiO2/高岭石复合光催化材料。用XRD、FTIR、Raman技术对材料的晶体结构和分子结构进行表征分析。偶氮染料废水初始浓度40 mg/L,催化剂添加量2 g/100 mL废水,废水初始pH=4,紫外光和太阳光下6 h后偶氮废水降解脱色率分别为98.4%和62.5%。Nano-TiO2/Kaolinite composition photocatalyst combined with Fe2O3 by heat-banding was prepared. XRD, FTIR, Raman techniques were adopted to characterize crystal and molecule construction of the photocatalyst. With initial concentration of 40 mg/L, photoeatalyst dosage of 2 g/100 mL, pH = 4, and irradiating under UV-light sunlight for 6 h, decoloring rate of AZO-dye wastewater were 99.2 % and 94.0 % respectively.

关 键 词：高岭石基二氧化钛 直接热合法 光催化降解 偶氮染料工业废水 

分 类 号：X791[环境科学与工程—环境工程]