粉煤灰负载TiO_2光催化剂制备及降解亚甲基蓝研究  

Photocatalytic Degradation of Methylene Blue by TiO_2: Fe^(3+) Supported by Fly Ash

作　　者：王臣[1] 费乾锋 杨本宏[2] WANG Chen;FEI Qian-feng;YANG Ben-hong(Department of Biological and Environmental Engineering,Hefei University,Hefei 230601;Department of Chemistry and Materials Engineering,Hefei University,Hefei 230601)

机构地区：[1]合肥学院生物与环境工程系,安徽合肥230000 [2]合肥学院化学与材料工程系,安徽合肥230000

出　　处：《佳木斯大学学报（自然科学版）》2019年第1期94-97,共4页Journal of Jiamusi University：Natural Science Edition

基　　金：合肥学院研究生创新研究项目(CX201803;CX201807)

摘　　要：以粉煤灰为载体,采用溶胶-凝胶法一步合成负载型TiO_2光催化剂,通过SEM、UVVis、XRD对样品进行了表征,并进行了可见光催化降解亚甲基蓝试验,结果显示,Fe的掺杂能抑制TiO_2晶粒的生长,在700 W氙灯下光照120 min,0. 15 g TiO_2:0. 7wt%Fe光催化剂可使30 mL(5 mg/L)的亚甲基蓝溶液脱色95%。Using fly ash as carrier,the metal ions doped with TiO2 were loaded onto the surface of fly ash microspheres by sol-gel method,and the supported TiO2 photocatalyst was obtained.The photocatalyst was characterized by SEM,UV-Vis and XRD,and the photocatalytic activity of photocatalytic degradation of methylene blue under visible light was investigated.The results showed that Fe doping inhibited the growth of TiO2 grain to some extent and showed good photocatalytic effect.Under 700W xenon lamp illumination of 120 min,0.15g TiO2:0.7wt%Fe photocatalyst can decolorization of 30 mL 5 mg/L methylene blue solution 95%.

关 键 词：粉煤灰 TIO2 光催化 亚甲基蓝 

分 类 号：X52[环境科学与工程—环境工程]