Biomimetic Preparation of Hybrid Porous Adsorbents for Efficiently Purifying Complex Wastewater
作者： Hongmin Wang , Chan Wang , Shengyang Tao , Jieshan Qiu , Yongxian Yu
DOI: 10.1021/ACSSUSCHEMENG.5B01054
关键词:
摘要: Simulating the polymerization of polyphenol on a solid surface in nature, hybrid adsorbents were prepared by coating hierarchically porous silica (HPS) with poly(pyrogallol) (PG) layer. Such material has macroporous skeleton and well-defined mesopores. During facile mild reaction, poly-PG membrane is strongly binded to pore HPS through covalent noncovalent interactions. High-performance adsorbents, HPS/PG, was obtained. It exhibits large capability adsorb various pollutants wastewater, such as heavy metal ions (Hg2+, Pb2+, Cu2+, Ni2+, CrO42–), organic dyes, pesticides. Specifically, HPS/PG showed good purifying capacity toward Hg2+ ion neutral red, which could reach 157.2 671.1 mg g–1, respectively. More than that, recovering ability simulated wastewater complex components. The removal rate for any more 98%. high adsorption should be due hierarchicall...
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