TiO_2光催化降解橡椀栲胶的研究  

A Study on TiO_2 Photocatalytic Degradation of Valonia Extract

作　　者：孙根行[1] 蔡祥[1] 俞从正[1] 王全杰[2] 黄维刚[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西咸阳712081 [2]国家制革技术研究推广中心,山东烟台264000

出　　处：《皮革科学与工程》2006年第2期18-21,共4页Leather Science and Engineering

基　　金：陕西省自然科学基金项目(2003B16);山东省科技攻关项目(012070106)

摘　　要：通过CODcr表征,利用悬浮态TiO2对溶液中橡椀栲胶光催化降解作用进行了研究。结果发现,碱性条件下,紫外灯光直接照射,栲胶溶液的浓度为0.5 g/L,TiO2用量为1.0 g/L,降解效果较好;外加H2O2对橡椀栲胶的光催化降解有极大的促进作用,但这种促进作用会因为光生电子效率的影响而有一个极限值。Studied on the CODcr of solution with valonia extract on suspending-TiO2 power in the reactor. The results show that effect of photocatalytic degradation of valonia extract is preferred condition with UV lamp as light source at alkaline condition, valonia extract liquor 0.5 g/L, TiO2 power 1.0 g/L. External addition of H2O2 shows a high acceleration for the photocatalytic degradation of valonia extract, but it is limited as a result of the amount of light-induced electrons.

关 键 词：二氧化钛 光催化降解 橡椀栲胶 CODCR 

分 类 号：X794[环境科学与工程—环境工程]