Sulfonate-grafted conjugated microporous polymers for fast removal of cationic dyes from water

Sulfonate-grafted conjugated microporous polymers for fast removal of cationic dyes from water
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用于快速去除水中阳离子染料的磺酸盐接枝共轭微孔聚合物

DOI:
10.1016/j.cej.2019.123591
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发表时间:
2020-07
影响因子:
15.1
通讯作者:
Wei Dong
Wei Dong
中科院分区:
工程技术1区
文献类型:
--
作者:
Wei Zhao;Yingzhi Jiao;Ruru Gao;Lipeng Wu;Siyao Cheng;Qiu Zhuang;Aming Xie;Wei Dong

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共轭微孔聚合物(CMPs)由于具有高的比表面积和永久性微孔,以及良好的气体吸附能力而受到广泛关注,但大多数CMPs在水中难以分散,在污水处理中的应用较少。在此,我们采用磺化反应来合成在水中具有良好分散性的磺酸盐接枝的CMP。磺酸盐接枝的CMP也表现出对阳离子染料溶液的快速吸附,特别是亚甲基蓝(MB,最大吸附量高达1650 mg/g)。由于多孔结构,MB分子不仅在表面上而且在孔中与CMP相互作用,从而增加接触位点和吸附效率。本研究极大地拓展了中医药的开发和应用范围。
Conjugated microporous polymers (CMPs) have gained great attention because of high surface area and permanent pores with good gas adsorption capability, but most of them are hard to disperse in water, and thus barely used in sewage disposal. Herein, we adopt sulfonation to post-synthesis sulfonate-grafted CMPs which possess unexceptional dispersity in water. The sulfonate-grafted CMPs also exhibit fast adsorption towards cationic dye solutions especially methylene blue (MB, maximum adsorption up to 1650 mg/g). Because of the porous structure, MB molecules interact with CMPs not only on the surface but also in pores, increasing the contact sites and adsorption efficiency. This research greatly expands the exploration and application scope of CMPs.
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发表时间: 2015-05-01
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