KH550-TiO_2表面负载聚醚砜超滤膜光催化和膜分离性能的研究  

Study on Photacatalysis and Separation Performance of KH550-TiO_2 Immobilized on PES Ultrafiltration Membrane

作　　者：毛静涛[1] 杨汉培[1] 高照[1] 张睿宸 柴思琪 MAO Jing-tao;YANG Han-peng;GAO Zhao;ZHANG Rui-chen;CHAI Si-qi(Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes,Ministry of Education,College of Environment,Hohai University,Nanjing 210098,China)

机构地区：[1]河海大学研究学院河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098

出　　处：《环境科技》2018年第4期7-13,共7页Environmental Science and Technology

基　　金：国家重大科学仪器设备开发专项(2014YQ060773)

摘　　要：运用非溶剂致相分离法合成聚醚砜超滤膜,以聚丙烯酰胺为粘连剂,真空抽滤KH550-TiO_2负载于聚醚砜超滤膜表面,形成KH550-TiO_2/PES超滤膜。采用红外光谱、扫描电镜和接触角表征分析KH550-TiO_2和KH550-TiO_2/PES超滤膜的物理化学性能。通过超滤膜的分离截留实验分析超滤膜的抗污染性能。结果表明:KH550-TiO_2/PES超滤膜负载后孔径减小,具有较高的截留率和渗透通量,并且在紫外光照下进一步提高。KH550-TiO_2/PES超滤膜由于KH550-TiO_2的亲水性和光催化性能,表现出优越的抗污染性能。The PES ultrafiltration membrane was synthesized by non-solvent induced phase separation. The PAM was used as glue and the KH550-TiO2 nanoparticles were immobilized on the PES ultrafiltration membrane by vacuum filtration.Physicochemical properties of KH550-TiO2 and KH550-TiO2/PES ultrafiltration membrane were characterized by FT-IR, SEM and WCA. Antifouling properties were analyzed by filtering separation experiment. The results displayed that the pore size of KH550-TiO2/PES ultrafiltration membrane was reduced and this membrane had superior rejection and permeation flux, and further improved under UV light. KH550-TiO2/PES ultrafiltration showed better antifouling properties due to hydrophilicity and photo degradation of KH550-TiO2.

关 键 词：KH550-TiO2 光催化 亲水性 膜分离 抗污染 

分 类 号：X5[环境科学与工程—环境工程]