文献类型：期刊文献

英文题名：Single-organic component g-C_3.6N₄ 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

通信作者：Liu, H[1];Zhang, L[1];Yao, Y[1];Yao, Y[2];Ma, ZH[3];He, JZ[4]

机构：[1]Xian Univ Architecture & Technol, Sch Chem & Chem Engn, Xian 710055, Peoples R China;[2]Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China;[3]Beijing Technol & Business Univ, Dept Phys, Beijing 100048, Peoples R China;[4]Gansu Univ Chinese Med, Prov Level Key Lab Mol Med Major Dis & Prevent &, Lanzhou 730000, Peoples R China

第一机构：Xian Univ Architecture & Technol, Sch Chem & Chem Engn, Xian 710055, Peoples R China

通信机构：[1]corresponding author), Xian Univ Architecture & Technol, Sch Chem & Chem Engn, Xian 710055, Peoples R China;[2]corresponding author), Xian Univ Architecture & Technol, Sch Civil Engn, Xian 710055, Peoples R China;[3]corresponding author), Beijing Technol & Business Univ, Dept Phys, Beijing 100048, Peoples R China;[4]corresponding author), Gansu Univ Chinese Med, Prov Level Key Lab Mol Med Major Dis & Prevent &, Lanzhou 730000, Peoples R China.|[10735]甘肃中医药大学;

年份：2022

卷号：440

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000820060500003)】；

基金：This work was supported by the Shaanxi "Sanqin Scholar" innovation team, Innovation Capability Support Program of Shaanxi Province (Grant No. 2022TD-05), Natural Science Foundation of Shaanxi Province (Grant Nos. 2020JM-103 and 2021JM-356), National Natural Youth Science Foundation of China (Grant No. 82104562) and Natural Youth Science Foundation of Gansu Province (Grant No. 20JR5RA176).

语种：英文

外文关键词：Flexible membrane; Schiff base; Single organic component; C3.6N4; Photocatalysis antibacterial

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 (lambda > 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.