g-C_(3)N_(4)基复合分离膜的制备及光催化性能  

Preparation and Photocatalytic Performance of g-C_(3)N_(4)-Based Composite Separation Membrane

作　　者：郑丹丹[1,2] 黄忠铖 刘敏 张金水 邱挺 ZHENG Dan-Dan;HUANG Zhong-Cheng;LIU Min;ZHANG Jin-Shui;QIU Ting(College of Environment&Safety Engineering,Fuzhou University,Fuzhou 350108,China;State Key Laboratory of Photocatalysis on Energy and Environment,College of Chemistry,Fuzhou University,Fuzhou 350108,China;College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学环境与安全工程学院,福州350108 [2]福州大学化学学院能源与环境光催化国家重点实验室,福州350108 [3]福州大学石油化工学院,福州350108

出　　处：《无机化学学报》2021年第12期2235-2243,共9页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.22002016);福建省自然科学基金(No.2020J05132);福州大学能源与环境光催化国家重点实验室开放课题(No.KLPEE-KF202015);福州大学贵重仪器设备开放测试基金(No.2020T010)资助。

摘　　要：利用g-C_(3)N_(4)纳米片表面的氨基与膜基底材料氯甲基化聚醚砜(CMPES)的苄氯基团发生化学交联反应,再通过相转化法制备出g-C_(3)N_(4)/CMPES复合膜。系统研究了g-C_(3)N_(4)纳米片的添加对复合膜的结构、形貌及过滤、光催化、抗污染性能的影响,并探讨其光催化降解牛血清白蛋白溶液(BSA)的机理。研究结果表明:g-C_(3)N_(4)纳米片与膜基底材料通过化学键相连接,有效提高了复合膜的光催化性能和稳定性。由于g-C_(3)N_(4)纳米片的亲水性和光催化作用,使复合膜表现出优异的过滤性能和抗污染性能。Using the amino group on the surface of g-C_(3)N_(4) nanosheet,chemically cross-linked with the benzyl group chloride of the chloromethylated polyether sulfone(CMPES),which is the membrane substrate,then g-C_(3)N_(4)/CMPES composite membrane was provided by the phase inversion.The effects of the addition of g-C_(3)N_(4) nanosheets on the structure,morphology,and filtration,photocatalysis,antifouling performance of composite membranes were system-atically studied,meanwhile the mechanism of photocatalytic degradation of bovine serum albumin(BSA)solution was also discussed.The results showed that the photocatalytic performance and stability of the composite membrane were effectively improved by chemical bond between the g-C_(3)N_(4) nanosheets and the membrane substrate material.Due to the photocatalytic effect and the hydrophilicity of g-C_(3)N_(4) nanosheets,the composite membrane shows excel-lent filtration performance and anti-pollution performance.

关 键 词：g-C_(3)N_(4) 分离膜 光催化 抗污染 

分 类 号：O643.36[理学—物理化学]