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Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic self-cleaning and antifouling functionalities

查看全文 作　　者：Nee Nee [1]Tan;Qi Hwa [1,2]Ng;Siti Kartini Enche Ab [1,2]Rahim;Abdul Latif [3]Ahmad;Peng Yong [1,2]Hoo;Thiam Leng [4,5]Chew 高影响力作者 机构地区：[1]Faculty of Chemical Engineering&Technology,Universiti Malaysia Perlis(UniMAP),Perlis 02600,Malaysia;[2]Centre of Excellent for Frontier Materials Research,Universiti Malaysia Perlis(UniMAP),Perlis 02600,Malaysia;[3]School of Chemical Engineering,Engineering Campus,Universiti Sains Malaysia,Penang 14300,Malaysia;[4]Department of Chemical Engineering,Faculty of Engineering,Universiti Teknologi PETRONAS,Perak 32610,Malaysia;[5]CO_(2) Research Centre(CO2RES),Institute of Contaminant Management,Universiti Teknologi PETRONAS,Perak 32610,Malaysia高影响力机构 出　　处：《Frontiers of Chemical Science and Engineering》索引2023年第17卷第10期,共10页高影响力期刊 基　　金：The authors would like to acknowledge the support from the Fundamental Research Grant Scheme(FRGS)under grant number of FRGS/1/2021/TK0/UNIMAP/02/3 from the Ministry of Higher Education Malaysia;Furthermore,sincere indebtedness and gratitude are addressed to Universiti Malaysia Perlis(UniMAP). 摘　　要：Membrane technology is ideal for removing aqueous humic acid,but humic acid deposits cause membrane fouling,a significant challenge that limits its application.Herein,this work proposed an alternative approach to the controllably magnetically induced magnetohybrid polyoxometalate(magneto-HPOM)nanocomposite migration toward the polyethersulfone(PES)membrane surface under a magnetic field to enhance the self-cleaning and antifouling functionalities of the membrane.Before incorporating magneto-HPOM nanocomposite into the PES casting solution,functionalized magnetite nanoparticles(F-MNP)were first coated with HPOM photocatalyst to fabricate a magneto-HPOM-PES membrane.It was shown that the apparent impacts of this novel magneto-HPOM-PES membrane on the hydrophilic behavior and photocatalytic properties of the magneto-HPOM nanocomposite improve the hydrophilicity,separation performance,antifouling and self-cleaning properties of the membrane compared with neat PES membrane.Furthermore,after exposure to ultraviolet light,the magneto-HPOM-PES membrane can be recovered after three cycles with a flux recovery ratio of 107.95%,100.06%,and 95.56%,which is attributed to the temporal super hydrophilicity effect.Meanwhile,the magneto-HPOM-PES membrane could efficiently maintain 100%humic acid rejection for the first and second cycles and 99.81%for the third cycle.This study revealed a novel approach to fabricating membranes with high antifouling and self-cleaning properties for water treatment. 关 键 词：magneto-hybrid polyoxometalate nanocomposite composite membrane ANTIFOULING SELF-CLEANING magnetic and photocatalytic responsiveness
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