文献类型：期刊文献

英文题名：Single-organic component g-C3.6N4 achieves superior photoactivity antibacterial

作者：Miao, Ruoyan[1]; Liu, Hu[1]; Lei, Qian[1]; Zhong, Lvling[1]; Zhang, Liang[1]; He, Jianzheng[4]; Ma, Zhenhui[3]; Yao, Yao[1,2]

第一作者：Miao, Ruoyan

机构：[1] School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; [2] School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; [3] Department of Physics, Beijing Technology and Business University, Beijing, 100048, China; [4] Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and The Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, 730000, China

第一机构：School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China

通信机构：[1]School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China

年份：2022

卷号：440

外文期刊名：Chemical Engineering Journal

收录：EI(收录号：20221211821927);Scopus(收录号：2-s2.0-85126635435)

语种：英文

外文关键词：Chemical bonds - Crosslinking - Hydrogels - Photocatalytic activity

摘要：Metal-free photocatalyst producing reactive oxygen species (ROS) is promising for photocatalysis antibacterial, but flexible-functionalized single-organic photocatalyst for photocatalysis antibacterial remains a significant challenge. Herein, we reported a g-C3.6N4/polyvinyl alcohol (PVA) hydrogel synthesized by the chemical crosslinking method. Our strategy makes solid-state g-C3.6N4 become into the flexible-functionalized membrane and achieve its photocatalysis antibacterial. The characterization of microscopic morphology and structure of g-C3.6N4/PVA reveal that the porous cavity of PVA hydrogel is uniformly filled with nanosheet-like g-C3.6N4 in the g-C3.6N4/PVA membrane, which benefits to making the porous PVA hydrogel denser and producing efficient ROS. The g-C3.6N4/PVA hydrogel shows superior photocatalytic antibacterial rate (>99%) towards Escherichia coli under visible light irradiation (λ > 420 nm) and the cytotoxicity was negligible. Theoretical calculations have confirmed that Schiff-base bonds are conducive to the rapid transfer electrons in the g-C3.6N4, leading to the C atom forming the double bond and losing fewer electrons. The flexible-functionalized g-C3.6N4/PVA hydrogel membrane exhibits great promise for application in wound disinfection. ? 2022 Elsevier B.V.