文献类型：期刊文献

英文题名：N-halamine modified poly(amidoxime) nanofibrous antibacterial adsorbents for the extraction of copper ions and dyes from aqueous medium

作者：Wang, Yingfeng[1,2];Shen, Yanzhi[1,3];Yang, Gun[1];Ding, Fang[1,4];Hong, Jun[1];Yin, Maoli[1];Pan, Nengyu[2]

机构：[1]Anhui Polytech Univ, Coll Text & Garments, Wuhu 241000, Anhui, Peoples R China;[2]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Zhejiang, Peoples R China;[3]Xinjiang Univ, Coll Text & Clothing, Urumqi 830046, Xinjiang, Peoples R China;[4]Wuhan Text Univ, Coll Text Sci & Engn, Wuhan 430077, Hubei, Peoples R China

年份：2024

卷号：395

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：SCI-EXPANDED(收录号：WOS:001158105900001)、、EI(收录号：20240215370353)、Scopus(收录号：2-s2.0-85181880515)、WOS

语种：英文

外文关键词：N-halamine; Amidoxime; Polyacrylonitrile; Bactericidal; Adsorption

外文摘要：Wastewater with contaminants such as heavy ions, organic dyes, and bacteria is extremely damaging to the environment and human life. In this study, N-halamine modified poly(amidoxime) nanofibrous membranes (PAO-Cl) were prepared using amidoxime-modified polyacrylonitrile (PAN), followed by chlorination. The amidoxime conditions of PAN were investigated, and the micromorphologies of each sample were examined. The durability, water release properties, antibacterial activities, and adsorption properties of the Cu2+ ions and methyl orange(MO) were investigated. The results demonstrated that PAO and PAO-Cl exhibited an adsorption capacity toward Cu2+ ions and MO, respectively. Chlorination of PAO resulted in the loss of Cu2+ ion adsorption properties of PAO-Cl. Nevertheless, PAO-Cl presented a higher MO adsorption capacity than poly(amidoxime) nanofibrous membranes (PAO). When the pH value less than 4, the adsorption properties of PAO-Cl was significantly enhanced, and the adsorption process was optimal, as described by the pseudo-second-order kinetic and Langmuir models. For PAO-Cl, the chemical structure changes and adsorption mechanism toward MO were thoroughly studied. After 5 min of contact time, the chlorinated sample displayed excellent antimicrobial capacities against 100 % of S. aureus (6.2 log) and E. coli O157:H7 (6.0 log), making it a promising candidate for use in water disinfection fields.