文献类型：期刊文献

英文题名：A novel cationic graphene modified cyclodextrin adsorbent with enhanced removal performance of organic micropollutants and high antibacterial activity

作者：Liu, Qikai[1];Wang, Jianyu[1];Duan, Chengyu[1];Wang, Tong[1];Zhou, Yanbo[1,2,3]

机构：[1]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, 1515 Zhongshan Second North Rd, Shanghai 200092, Peoples R China;[3]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Reso, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：426

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：;EI(收录号：20215211399677);WOS:【SCI-EXPANDED(收录号:WOS:000752473200005)】；

基金：This work was financially supported by the National Natural Science Foundation of China (51778230) and Program of Shanghai Outstanding Technology Leaders (Grant No. 20XD1433900).

语种：英文

外文关键词：Cyclodextrin complex; Antibacterial; Adsorption; Quaternization

摘要：The coexistence of pathogenic microorganisms and refractory organic chemicals in water nurtures certain biological and chemical risks to human beings and the water environment as a whole. For an environmentally friendly utilization of water cleaning and recycling technologies, a bifunctional cationic cyclodextrin material (GD-DTAC) with adsorption and bactericidal function was designed. By a simple crosslinking method, GD-DTAC was prepared with graphene supported citric acid-beta-cyclodextrin polymer (GD) and dimethyldodecyl[3-(trimethoxysilyl)propyl]ammonium chloride (DTAC). Following the introduction of rich quaternary ammonium groups by DTAC, GD-DTAC realized a double regulation of surface positive charge and wettability. The maximum adsorption capacities of Roxarsone (ROX), Methyl Orange (MO) and Bisphenol A (BPA) were 153.59 mg/g, 445.60 mg/g and 237.90 mg/g, respectively. Antibacterial activity tests showed the efficiency of DTAC not only for enhanced adhesion resistance, but it also realized the sterilization function. This work displays the potential of the prepared bifunctional materials for the removal of pollutants from wastewater as well as the suppression of micro-pollutants. The successful preparation of GD-DTAC provided a basis for the bifunctional material, which showed a great potential in adsorption and antibiosis.