光催化降解甲醛的纳米二氧化钛的合成  

Synthesis of nano-TiO_2 applied in photocatalytic degradation of formaldehyde

作　　者：王文进[1] 方奕文[2] 李鸿岩[1] 姜其斌[1] 

机构地区：[1]株洲时代新材料科技股份有限公司 [2]汕头大学化学系

出　　处：《应用化工》2007年第11期1053-1055,共3页Applied Chemical Industry

基　　金：863计划资助项目(2006AA11A178)

摘　　要：以TiC l4为前躯体,合成了光催化降解甲醛的纳米TiO2。以甲醛的光催化降解性能为指标,采用正交实验法研究了纳米二氧化钛的合成条件。结果表明,最佳合成工艺为:以盐酸为溶剂,Ti4+∶SO42-(摩尔比)=2∶1,pH值为9,煅烧温度为600℃。在此条件下制备的TiO2具有很好的光催化活性,2 h内甲醛的降解率达到85.8%。Nanoparticle TiO2 with good photocatalytic degradation performance of formMdehyde was synthesised from TiCl4. Using orthogonal design and the photocatalytic degradation performance of formaldehyde as estimate criterion, the synthesis conditions were investigated. The results of orthogonal test indicated the optimum synthesis conditions of titania： hydrochloric acid as solvent, mole ratio of Ti^4＋ to SO4^2- is 2： 1, pH = 9, the temperature of calcination is 600 ℃. The photocatalytic degradation performance of nanoTiO2 on formaldehyde was 85.8% within 2 h.

关 键 词：纳米TIO2 甲醛 光催化降解 

分 类 号：O643.3[理学—物理化学]