文献类型：期刊文献

英文题名：Deciphering the mechanism insights of carbon nitride mediated thin film nanocomposite membrane towards advanced nanofiltration

作者：Sadam, Hussain[1,2];Lu, Xin[1,2];An, Yaguang[1,2];Song, Qiangqiang[1,2];Li, Dongyang[1,2];Dong, Guanying[1,2];Zhu, Junyong[1,2];Lin, Yuqing[3];Wang, Jing[1,2];Matsuyama, Hideto[4];Zhang, Yatao[1,2]

机构：[1]Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China;[2]Zhengzhou Univ, Minist Educ, Engn Res Ctr Adv Mfg, Zhengzhou 450001, Peoples R China;[3]East China Univ Sci & Technol, Natl Engn Res Ctr Comprehens Utilizat Salt Lake Re, Sch Resources & Environm Engn, Shanghai, Peoples R China;[4]Kobe Univ, Res Ctr Membrane & Film Technol, Dept Chem Sci & Engn, Kobe, Japan

年份：2025

卷号：717

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20244817450740);WOS:【SCI-EXPANDED(收录号:WOS:001370581800001)】；

基金：This work was partly supported by Kobe University Strategic International Collaborative Research Grant (Type B Fostering Joint Research) . This work was supported by National Postdoctoral Researcher Program, grant No. GZC20241542. The characterizations and simulations were measured in the National Supercomputing Center in Zhengzhou Center of Advanced Analysis & Gene Sequencing of Zhengzhou University, respectively.

语种：英文

外文关键词：Nanofiltration membrane; Interfacial polymerization; Ions separation; Desalination

摘要：Recent progress in the membrane field emphasizes the considerable potential of 2D material of carbon nitride (C2N) as an appealing candidate for new nanofiltration membrane fabrication. In current work, a novel class of thin film nanocomposite (TFN) membrane was developed by embedding the post-synthesized C2N nanosheets as a quasi-molecular-scale regulator to mediate the interfacial polymerization procedure for achieving high selective nanofiltration. The entrapped heterogenous C2N nanoflakes disrupt the typical reaction-diffusion proceeding of interfacial polymerization by imparting additional interfacial disturbance and restricting the amine monomer's rapid diffusion towards organic phase, contributing to a thinner polyamide (PA) nanofilm with closely scattered nodes pattern formation on membrane upper surface. Furthermore, the water-harvesting essence of C2N nanosheets capture amine aqueous micro-phase, assuming the framework of nanofillers and undeviatingly impacting the membrane morphology conversion from flatten to nodes, collaboratively assisting fluid transport pathways creation inside membrane matrix for water molecules quick pass through. Finally, C2N with porous structure and unshared electron pairs in N atoms interact with water molecules via hydrogen bonding, promoted water easy transport and improved membrane anti-fouling property. Therefore, the best-performing membrane (PA-g-C2N (0.02)) with augmented separation permeance exhibited intriguing water permeance of 22.18 L m- 2 h- 1 bar- 1 , approximately 3 folds than the pristine PA membrane with comparable salts selectivity (98.61 % for Na2SO4 and 60.7 for Cl-/SO42-). Because of the distinctive intrinsic water-affinitive capacity, the PA-g-C2N (0.02) membrane also displayed superior anti-fouling ability. In general, the as-prepared membrane evinces competitive separation properties compare to that of state-of-the-art desalination membranes and shows good potential in future water remediation.