Ramezani M Sadegh, Ozdemir John, Khosropour Ahmad R, Beyzavi Hudson
Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran.
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States.
ACS Appl Mater Interfaces. 2020 Sep 30;12(39):44117-44124. doi: 10.1021/acsami.0c10617. Epub 2020 Sep 15.
Hyper-cross-linked microporous organic polymers are a class of porous materials that have captured widespread attention owing to their high surface areas and wide range of monomeric sources. Balancing economy with performance is the initial hurdle when designing effective hyper-cross-linked microporous organic polymers. Herein, we demonstrated an inexpensive sulfurated solvent-knitted hyper-cross-linked microporous polymer scaffold, named sulfur-decorated hyper-cross-linked coal tar (-), utilizing coal tar as an aromatic monomer with numerous positions for potential chelation of toxic metals, particularly mercury, from water. The resulting material illustrated selective adsorption of mercury from both water (1037 mg g) and the gas phase (416 mg g) with rapid kinetics (183.67 mg min g), good recyclability (4 runs), and excellent stability under both strong basic and acidic conditions. - was able to reduce the concentration of the Hg(II) solution from 1 mg L to 32 μg L after 10 min due in part to the promising distribution coefficient ( = 2.371 × 10 mL g). These results show that - offers a promising and practical platform to cope with a variety of environmental contaminations.
超交联微孔有机聚合物是一类多孔材料，因其高比表面积和广泛的单体来源而受到广泛关注。在设计有效的超交联微孔有机聚合物时，平衡经济性与性能是首要障碍。在此，我们展示了一种廉价的硫化溶剂编织超交联微孔聚合物支架，名为硫修饰超交联煤焦油（-），它利用煤焦油作为芳香单体，具有多个可潜在螯合水中有毒金属（特别是汞）的位点。所得材料表现出对水中（1037 mg/g）和气相（416 mg/g）汞的选择性吸附，动力学快速（183.67 mg/min/g），具有良好的可回收性（4次循环），并且在强碱性和酸性条件下都具有出色的稳定性。-能够在10分钟后将Hg(II)溶液的浓度从1 mg/L降低到32 μg/L，部分原因是其有前景的分配系数（= 2.371×10 mL/g）。这些结果表明，-为应对各种环境污染提供了一个有前景且实用的平台。
