Biomass@MOF-Derived Carbon Aerogels with a Hierarchically Structured Surface for Treating Organic Pollutants,Industrial & Engineering Chemistry Research

当前位置： X-MOL 学术 › Ind. Eng. Chem. Res. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Biomass@MOF-Derived Carbon Aerogels with a Hierarchically Structured Surface for Treating Organic Pollutants
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-04-30 , DOI: 10.1021/acs.iecr.0c01149
Yang Zhao ₁ , Jiafu Shi _{1,

2} , Xueying Wang ₁ , Weiran Li ₁ , Yizhou Wu _{2,

3} , Zhongyi Jiang _{2,

3}

Affiliation

Porous carbon materials are highly attractive in the research field of adsorption, particularly, for treating organic pollutants in wastewater, of which the facile yet generic method is highly pursued. In our study, carbon aerogels bearing a hierarchically structured surface were prepared through direct carbonization of Biomass@metal–organic framework (MOF) composites. Briefly, MIL-53, one typical MOF material, was in situ assembled on the surface of kapok fibers, a kind of fibrous biomass with the highest hollow degree on earth, through surface-induced mineralization. After direct carbonization, the resultant carbon aerogel, termed Biomass-C@MIL-53-C, with a hierarchically structured surface, was formed. Biomass-C@MIL-53-C exerted superwater repellence with the water contact angle of >140°, which showed adsorption capacities 35–119.5 times their own weight toward various kinds of oils and organic solvents. Additionally, Biomass-C@MIL-53-C could retain 77.2–96.7% of their initial adsorption capacity after eight adsorption-squeezing cycles, outperforming its counterpart, Biomass-C aerogel. Other organic pollutants, such as dyestuffs, in wastewater could also be effectively removed by Biomass-C@MIL-53-C, showing the potential of our biomass-derived carbon aerogels in a broad range of application areas for environmental protection.

中文翻译：

Biomass @ MOF衍生的碳气凝胶，具有分层结构的表面，用于处理有机污染物

多孔碳材料在吸附的研究领域中具有很高的吸引力，特别是在处理废水中的有机污染物方面，高度追求简便而通用的方法。在我们的研究中，通过直接碳化Biomass @ metal-organic framework（MOF）复合材料来制备具有分层结构表面的碳气凝胶。简而言之，MIL-53（一种典型的MOF材料）在原位通过表面诱导的矿化作用，在木棉纤维的表面上组装，这是一种具有最高空心度的纤维状生物质。直接碳化后，形成的碳气凝胶，称为Biomass-C @ MIL-53-C，具有分层结构的表面。Biomass-C @ MIL-53-C具有超强的斥水性，其水接触角> 140°，对各种油和有机溶剂的吸附能力是其自身重量的35-119.5倍。此外，Biomass-C @ MIL-53-C在八个吸附挤压循环后仍可保留其初始吸附容量的77.2–96.7％，胜过其同类产品Biomass-C气凝胶。Biomass-C @ MIL-53-C还可以有效去除废水中的其他有机污染物，例如染料。

更新日期：2020-04-30

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南