Hybrid nanoarchitectonics of TiO_(2)/aramid nanofiber membranes with softness and durability for photocatalytic dye degradation  

作　　者：Wenhao Wang Guangpu Zhang Qiufeng Wang Fancang Meng Hongbin Jia Wei Jiang Qingmin Ji 

机构地区：[1]Herbert Gleiter Institute for Nanoscience,School of Materials Science and Engineering Nanjing University of Science and Technology,Nanjing 210094,China [2]School of Chemical Engineering,Nanjing University of Science&Technology,Nanjing 210094,China [3]Nantong Junjiang Material Science and Technology Co.,Ltd.,Haimen 226136,China

出　　处：《Chinese Chemical Letters》2024年第7期188-191,共4页中国化学快报（英文版）

基　　金：the financial supports from the Instrument&Equipment Open Funding of Nanjing University of Science and Technology;National Natural Science Foundation of China(Nos.21875108 and 22105103);the Natural Science Foundation of Jiangsu Province(No.BK20200471);the Fundamental Research Funds for the Central Universities(No.30921013106);the technical cooperation project with Nantong Junjiang Material Science and Technology Co.,Ltd.(No.2022320104001955);the Key R&D Project of Shanxi Province(No.2022JBGS3–12)。

摘　　要：TiO_(2)-based films are one of the most attractive photocatalysts owing to their highly cost-effective properties.Nevertheless,most TiO_(2)-based photocatalytic films for dye degradation are in the form of robust films(without flexibility),TiO_(2)coatings on carbon matrix(with leakage risk),or surface-covered TiO_(2)hybrids(not favorite to contact with external molecules).Therefore,the development of durable and highly efficient TiO_(2)photocatalytic films for dye degradation is still needed.Here,we fabricated soft photocatalytic hybrid membranes(TANFs)from TiO_(2)nanotubes(Ti NT)and aramid nanofiber(ANF)by a facile vacuum filtration process.The similar morphology and dimension of Ti NT and ANF enable them intricately intertwine with each other in the membrane network.Under an appropriate mixing ratio,the TANF exhibited significantly improved optical and mechanical properties.When used for dye degradation,the membrane showed excellent photocatalytic performance and could keep stable activity and integrated state for repeated usage.

关 键 词：Titanium dioxide nanotube Aramid nanofiber Flexible hybrid membrane PHOTOCATALYSIS Dye degradation 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TB383.2[一般工业技术—材料科学与工程]