多金属氧酸盐
吸附
阳离子聚合
离子液体
化学
混合材料
离子键合
水溶液
选择性
无机化学
化学工程
高分子化学
有机化学
离子
催化作用
工程类
作者
Huawei Yang,Liangjiu Bai,Donglei Wei,Lixia Yang,Wenxiang Wang,Hou Chen,Yuzhong Niu,Zhongxin Xue
标识
DOI:10.1016/j.cej.2018.10.100
摘要
In this work, poly(ionic liquid)-based porous hybrid materials were facilely prepared through ionic self-assembly method and proposed as adsorbents for removal and separation of ionic dyes. PIL, namely poly-[N,N-dimethyl-dodecyl-(4-vinylbenzyl)ammonium chloride], was synthesized by simple radical polymerization and directly assembled with the multi-charged anionic cluster of polyoxometalate (POM) to yield PIL/POM hybrid materials without involving any toxic organic solvents and tedious modification processes. The obtained hybrid materials were characterized by various techniques and utilized as adsorbents for removal of a variety of ionic dyes from water. By adjusting the proportion of PIL and POM in the hybrid materials, the adsorption capability and selectivity towards cationic and anionic dyes could be effectively regulated. The preferred adsorbent showed fast adsorption rate and large adsorption capacity, and was able to selectively remove anionic dyes from cationic/anionic mixed dyes aqueous solutions. Furthermore, the used adsorbent can be easily collected and regenerated. All the results demonstrate that the PIL/POM hybrid material is an efficient, durable and sustainable adsorbent in water purification treatment.
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