吸附
消毒剂
铵
聚合物
罗丹明B
污染物
化学
化学工程
水处理
盐(化学)
离子交换
比表面积
有机化学
离子
光催化
环境工程
催化作用
环境科学
工程类
作者
Guizhou Xu,Pingping Yang,Yalan Zhang,Laixi Sun,Xuejiao Hu,Wenrui Zhang,Yizhou Tu,Yuansong Tian,Aimin Li,Xianchuan Xie,Xueyuan Gu
出处
期刊:Chemosphere
[Elsevier]
日期:2023-11-01
卷期号:341: 140056-140056
被引量:1
标识
DOI:10.1016/j.chemosphere.2023.140056
摘要
Pillararene polymers have been widely used as excellent adsorbents for water treatment, but pillararene polymers with ultra-high specific surface area and versatility are still rarely reported. Herein, a quaternary ammonium salt modified pillar [5] arene polymer, QPBP [5], with specific surface area of 1844 m2 g-1 was successfully synthesized. Since QPBP [5] has abundant different adsorption sites, it exhibits excellent performance for the simultaneously removal of organic pollutants with different charges from water. The selected three model pollutants, Rhodamine B (RhB, positively charged), Sulfamethazine (SMT, electrically neutral) and Fulvic acid (FA, negatively charged), could be rapidly and efficiently removed from water by QPBP [5] within 10 min, which are much faster than them by most of the reported adsorbents. RhB and SMT are mainly adsorbed through hydrophobic interactions with the QPBP [5] surface, while FA is mainly removed through ion exchange. In addition, QPBP [5] also showed excellent reusability and adsorption performance for the environmentally relevant concentration of pollutants. Furthermore, the quaternary ammonium groups on QPBP [5] makes it a solid disinfectant with excellent antibacterial properties. In conclusion, QPBP [5] is a promising multifunctional adsorbent for the treatment of complex pollutants in water.
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