浮石负载Fe^(3+)/TiO_2复合材料微波光降解染料废水的研究  

MW/UV Photodegradation of Dyestuff-wastewater Using Adhere Fe^(3+)/TiO_2 Pumice Catalyst

作　　者：赵晖[1] 冯丽君[1] 舒倩茜[1] 曾庆福[1] 

机构地区：[1]武汉纺织大学环境与城建学院,430073

出　　处：《江西化工》2011年第1期110-113,共4页Jiangxi Chemical Industry

基　　金：国家863重点攻关项目"新型物化组合技术与设备"(项目编号2002AA601300)资助

摘　　要：以浮石为载体,用溶胶—凝胶法制备含Fe3+的TiO2光催化剂,并用制备的光催化剂处理染料废水。研究了涂覆催化剂的硝酸铁浓度、催化剂煅烧温度、催化剂涂覆次数、催化剂用量、曝气量、染液初始pH值、反应温度等对染料废水处理效果的影响。实验结果表明,用溶胶—凝胶法制备的Fe3+/TiO2/浮石光催化剂在反应温度为70℃、pH=4.5、全曝气反应60m in处理条件下降解浓度为300mg/L的染料废水,脱色率可以达到86%。TiO2-loaded natural pumice photocatalyst and doped of lead ion（Fe3＋/TiO2/Pumice） was prepared by sol-gel technique using natural pumice as the supporter.The photocatalytic degradation of reactive brilliant red X-3B solution was performed in aqueous suspensions of Fe3＋/TiO2/Pumice.The treatment effect of catalyst was examined on times of sol overlaying 、concentration of doping of Fe3＋ in preparation of catalyst,different pH and temperature of dyeing water.The result indicate that the colour removal can reach 86%,when pumice was overlayed three times,concentration of lead nitrate was 1.0 g/L and the temperature was 70℃.

关 键 词：TIO2 天然浮石 FE3+ 光催化剂 染料废水 

分 类 号：X791[环境科学与工程—环境工程]