纳米Cu-SiO_2复合粒子改性聚醚砜超滤膜的制备及分离性能研究  

Research on fabrication and separation performance of polyethersulfone ultrafiltration membrane incorporated by mCu-SiO_2 nanocomposite

作　　者：喻文娟 金亚铃 胡滋苗 黄健[2] Yu Wenjuan;Jin Yaling;Hu Zimiao;Huang Jian(Shenzhen Environmental Engineering Technology Center Co.,Ltd.,Shenzhen 518000;College of Ecology,Lishui University,Lishui 323000)

机构地区：[1]深圳市环境工程科学技术中心有限公司,深圳518000 [2]丽水学院生态学院,丽水323000

出　　处：《化工新型材料》2018年第7期118-122,共5页New Chemical Materials

基　　金：浙江省基础公益研究计划项目(LGF18B060001);丽水市公益性技术应用研究计划项目(2017GYX24);浙江省大学生科技创新活动计划(2017R431005)

摘　　要：将纳米Cu负载至介孔二氧化硅(mSiO_2)表面制得mSiO_2-Cu抗菌材料,利用相转化法制备出聚醚砜(PES)/mSiO_2-Cu抗污染复合膜,研究了mSiO_2-Cu含量对PES超滤膜结构、抗污染及分离性能的影响。结果表明,当mSiO_2-Cu质量分数为2%时,PES/mSiO_2-Cu复合膜的纯水通量可达185L/(m2·h),是PES基膜的1.9倍,该复合膜对蛋白具有良好的抗污染性能。将PES/mSiO_2-Cu复合膜应用于河水处理,结果表明PES/mSiO_2-Cu复合膜具有良好的总有机碳去除率和稳定性。Antifouling performance is one of the most important issues in polymer membrane surface engineering,fabrication of anti-fouling membrane for the development of membrane separation technology is of great important.The copper nanoparticles were immobilized on the mesoporous silica surface to prepare mSiO2-Cu nanocomposites and the polyethersulfone nanocomposite membrane was fabricated by incorporating the mSiO2-Cu nanoparticles.The influence of particles on the membrane structure,antifouling and separation performances were evaluated.The results indicated that the pure water flux of membrane with 2% of mSiO2-Cu can reach 185 L/（m2·h）,which was 1.9 times that of PES basement membrane.The composite membrane had good antifouling property to the protein.When applied to the actual river water treatment,the results showed that PES/mSiO2-Cu membrane had good TOC removal rate and stability.

关 键 词：抗污染 纳米Cu介孔二氧化硅 复合膜 

分 类 号：TQ051.893[化学工程]