活性炭/TiO2光催化净化室内甲醛的实验研究  

Experimental study on photocatalytic purification of indoor formaldehyde by active carbon and TiO2

作　　者：顾洁[1] 胡星梦 牛永红[1,2] 修诗博 王嘉琦 李义科 GU Jie;HU Xing-meng;NIU Yong-hong;XIU Shi-bo;WANG Jia-qi;LI Yi-ke(School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou 014010,China;Mining Research Institute,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]内蒙古科技大学矿业研究院,内蒙古包头014010

出　　处：《应用化工》2019年第8期1791-1794,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目(51768054);内蒙古自然科学基金(2017MS(LH)0524);内蒙古科技大学大学生科技创新项目(2015042,2016083)

摘　　要：采用溶胶-凝胶法制得兼具吸附和催化性能的新型复合催化剂活性炭/TiO2。考察了不同吸附材料、形状、辐射照度等条件下对甲醛净化效果的影响。结果表明,活性炭在负载TiO2后吸附效果有所加强,负载不会影响活性炭本身的吸附效果,同等工况下,球状催化剂比粉状催化剂降解效率好,球状催化剂用UV-340型紫外灯在辐射照度18.5μW/cm^2工况下照射3h,甲醛降解率达到84.9%。The activated carbon/TiO2 catalyst was prepared by sol-gel method,which made the material have both adsorption and catalytic properties.The effects of different adsorption materials,shapes,light intensity and other conditions on the purification of formaldehyde were investigated.The results show that the adsorption effect of activated carbon is enhanced after loading TiO2,and the loading will not affect the adsorption effect of activated carbon.The spherical catalyst has better degradation efficiency than the powder catalyst under the same working conditions;when the catalyst is exposed to formaldehyde for 3 h under the condition of 18.5μW/cm^2.The degradation rate reached 84.9%.

关 键 词：活性炭 TIO2 催化剂 甲醛 光催化 净化 

分 类 号：TQ153[化学工程—电化学工业]