磁性微球负载光催化剂的吸附特性研究  

Characteristics of Adsorption of a Novel Magnetic Photocatalyst

作　　者：黄耀峰[1] 白先群[1] 朱开梅[1] 顾生玖[1] 

机构地区：[1]桂林医学院,广西桂林541004

出　　处：《环境科学与技术》2009年第7期57-59,共3页Environmental Science & Technology

基　　金：桂林市科技攻关项目(科技攻关20070305;20080103-5);广西自然科学基金(桂科自0640190;0728229)

摘　　要：在TiO2/SiO2/Fe3O4物化特性的研究中,通过测定方法的改进首次获得光照反应阶段TiO2/SiO2/Fe3O4吸附量与溶液残余量间的定量关系(以苯酚为例,结果表明:在光照及无光照条件下TiO2/SiO2/Fe3O4遵循不同的吸附规律,以后者取代前者存在明显缺陷;揭示了凝聚现象是导致TiO2/SiO2/Fe3O4光活性降低的主要原因。For the first time, the adsorptive amounts of organic compounds on TiO2/SiO2/Fe3O4 in UV-irradiation process and adsorption expression between TiO2/SiO2/Fe3O4 and residual organic compounds were obtained by a modified menstruation, taking phenol as an example. Results showed that the specific adsorption of compounds on TiO2/SiO2/Fe3O4 during the irradiation period was different from that during the dark period. The prime reason for deactivation of TiO2/SiO2/Fe3O4 in process was particle aggregation.

关 键 词：磁载 光催化剂 吸附特性 

分 类 号：X131[环境科学与工程—环境科学]