摘要
纳米TiO2光催化剂是当前最有应用潜力的一种高级氧化水处理技术.然而,使用过程中纳米TiO2悬浮法污水处理过程中的回收再利用技术始终不令人满意.本文探讨了采用磁分离技术解决这一问题的可行性;采用溶胶-凝胶法,制备了磁载二氧化钛光催化剂;设计了一种新型污水处理设备,检验光催化剂回收率及二次使用时其催化活性的变化率;在改进的工艺基础上讨论了各种因素对制备纳米TiO2的影响.
Nanometer TiO2 is the material that can be used in advanced oxidation processes, and it has more potential in this application. However, the reclamation of TiO2 is not the desire in the process of suspend technique of nanometer. It is discussed in the paper the applying feasibility of magnetic separation technology in dealing with sewerage, adopting sol - gel method to make magnetic - carry nanometer TiO2 light - catalyst and designing a new model of equipment of dealing sewerage. At the same time, we examine the reclamation rate and catalyst activity transformation of the reclaimed magnetic - carry nanometer TiO2. The paper also discusses the reason that may work on the magnetic - carry nanometer TiO2 preparation on the basic of the improving technology.
出处
《材料科学与工艺》
EI
CAS
CSCD
北大核心
2006年第3期326-329,共4页
Materials Science and Technology
关键词
纳米TIO2
光触媒
磁分离技术
溶胶一凝胶法
光催化活性
污水处理
nanometer TiO2 light-catalysis
magnetic separation technology
sol-gel method
light-catalysis activity
dealing with sewerage
