硫掺杂含钛高炉渣光催化剂性能研究  

Investigation on photocatalytic activity of S doped titania-bearing blast furnace slag

作　　者：王昱征[1] 薛向欣[1] 雷雪飞[1] 

机构地区：[1]东北大学冶金资源与环境工程研究所,沈阳110004

出　　处：《材料与冶金学报》2009年第1期73-76,共4页Journal of Materials and Metallurgy

基　　金：国家973计划资助项目(2007CB613504)

摘　　要：以含钛高炉渣为原料,硫脲为掺杂剂,采用高能球磨法制备了S掺杂含钛高炉渣催化剂,通过XRD、UV-vis吸收光谱、SEM等对其进行表征.研究甲基橙溶液pH值等对可见光光催化降解甲基橙的影响.结果表明,经过焙烧的掺硫催化剂对可见光吸收增强,吸收带边明显"红移";当pH=2时,甲基橙氧化效果最好.Taking titania - bearing blast furnace slag as raw material and thiourea as doping agent, photocatalysts of S - doped titania -bearing blast furnace slag （STBBFS） was prepared by calcinations. The samples were characterized by XRD, SEM and UV - vis. The effect of solution pH value, catalyst dosage, and other initial concentrations on the degradation of methyl orange were investigated. The results show that the visible light absorption of the catalyst was enhanced and obvious red - shift of the absorption band edge was also observed. The oxidation of methyl orange attained the best efficiency at pH = 2.

关 键 词：含钛高炉渣 钙钛矿 S掺杂 可见光 光催化 甲基橙 

分 类 号：TQ032.41[化学工程]