文献类型：期刊文献

英文题名：Multiple synergistic antibacterial melamine-impregnated paper based on nano Ag-doped ZIF-8

作者：He, Jinrong[1] Qu, Wei[1] Feng, Yun[1] Jiang, Jinrui[1] Luo, Jiaming[1] Wu, Yuzhang[1] Peng, Limin[1]

第一作者：He, Jinrong

通信作者：Qu, W[1];Peng, LM[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China

年份：2024

卷号：493

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20242216159390);Scopus(收录号：2-s2.0-85194055781);WOS:【SCI-EXPANDED(收录号:WOS:001246612400001)】；

基金：This research was funded by the National Key R & D Program of China (2022YFD2200702) .

语种：英文

外文关键词：ZIF-8; Melamine-impregnated paper; Antibacterial activity; Reactive oxygen species; Antibacterial mechanism

摘要：Melamine-impregnated paper, a decorative material in furniture and interior design, could potentially impede the spread of indoor bacteria if it possesses antibacterial properties. Here, nano Ag-doped ZIF-8 (Ag@ZIF-8) was synthesized using ion exchange and in-situ chemical reduction strategies, followed by incorporating it into melamine-impregnated paper. The ion exchange mechanism of Zn2+ and Ag+ during ion exchange reactions was investigated. The structure of Ag@ZIF-8 was well-defined, with Ag nanoparticles evenly distributed on the surface of ZIF-8. Ag@ZIF-8 showed good thermal stability at 400 degrees C, meeting the requirements for the hot-pressing process of the melamine-impregnated paper. Ag@ZIF-8 exhibited enhanced ROS generation under visible light compare to ZIF-8, which was attributed to its reinforced light absorption and charge carrier separation facilitated by the localized surface plasmon resonance (LSPR) effect. The antibacterial activity of Ag@ZIF-8 was better than ZIF-8, owing to the multiple-synergistic antibacterial mechanisms of the ion release and ROS generation. Specifically, the 10-Ag@ZIF-8 exhibited MIC of 128 mu g/mL and 64 mu g/mL against E. coli and S. aureus, respectively. The signal intensity of center dot O-2(-) induced by 10-Ag@ZIF-8 was 4.38 times higher than that of ZIF-8. As the addition of Ag@ZIF-8 increased, the antibacterial performance of melamine-impregnated paper improved. Considering the antibacterial property and economy of melamine-impregnated paper, 0.20 wt% was the optimal amount for 10-Ag@ZIF-8 decorated blockboard. This study proposes a novel approach for synthesizing MOF-based melamine-impregnated paper with antibacterial properties, aiming to reduce bacterial spread, minimize disease risks, and contribute to lowering overall healthcare costs.