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首页> 外文期刊>Environmental Science & Technology >Sugar Cane-Converted Graphene-like Material for the Superhigh Adsorption of Organic Pollutants from Water via Coassembly Mechanisms
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Sugar Cane-Converted Graphene-like Material for the Superhigh Adsorption of Organic Pollutants from Water via Coassembly Mechanisms

机译：甘蔗转化石墨烯样材料通过共组装机制超高吸附水中的有机污染物

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摘要

A sugar cane-converted graphene-like material (FZS900) was fabricated by carbonization and activation. The material exhibited abundant micropores, water-stable turbostratic single-layer graphene nanosheets, and a high BET-N_2 surface area (2280 m~2 g~(-1)). The adsorption capacities of FZS900 toward naphthalene, phenanthrene, and 1-naphthol were 615.8, 431.2, and 2040 mg g~(-10, respectively, which are much higher than those of previously reported materials. The nonpolar aromatic molecules induced the turbostratic graphene nanosheets to agglomerate in an orderly manner, forming 2—11 graphene layer nanoloops, while polar aromatic compounds induced high dispersion or aggregation of the graphene nanosheets. This phase conversion of the nanosized materials after sorption occurred through coassembly of the aromatic molecules and the single-layer graphene nanosheets via large-area it—it interactions. An adsorption-induced partition mechanism was further proposed to explain the nanosize effect and nanoscale sorption sites observed. This study indicates that commonly available biomass can be converted to graphene-like material with superhigh sorption ability in order to remove pollutants from the environment via nanosize effects and a coassembly mechanism.
机译：通过碳化和活化来制备甘蔗转化的类石墨烯材料（FZS900）。该材料具有丰富的微孔，水稳固的涡轮层单层石墨烯纳米片和较高的BET-N_2表面积（2280 m〜2 g〜（-1））。 FZS900对萘，菲和1-萘酚的吸附容量分别为615.8、431.2和2040 mg g〜（-10），远高于先前报道的材料。非极性芳族分子诱导了涡轮层状石墨烯纳米片。形成有序的团聚，形成2-11个石墨烯层纳米环，极性芳香族化合物引起石墨烯纳米片的高度分散或聚集，吸附后纳米级材料的这种相变是通过芳香族分子与单层的共组装而发生的石墨烯纳米片是通过大面积的相互作用而形成的，并进一步提出了一种吸附诱导的分配机理来解释所观察到的纳米尺寸效应和纳米级吸附位点，该研究表明，常用生物质可以转化为具有超高吸附能力的石墨烯状材料。为了通过纳米效应和协同组装从环境中去除污染物机制。

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  • 来源
    《Environmental Science & Technology》 |2017年第21期|12644-12652|共9页
  • 作者

    Xin Xiao; Baoliang Chen; Lizhong Zhu; Jerald L. Schnoor;

  • 作者单位

    Department of Environmental Science, Zhejiang University, Hangzhou 310058, China,Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China;

    Department of Environmental Science, Zhejiang University, Hangzhou 310058, China,Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China;

    Department of Environmental Science, Zhejiang University, Hangzhou 310058, China,Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China;

    Department of Civil and Environmental Engineering, University of Iowa, Iowa City, Iowa 52242, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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