Ultrahigh aniline-removal capacity of hierarchically structured layered manganese oxides: trapping aniline between interlayers
文献类型：期刊论文
| 作者 | Xiao, Wei1; Zhou, Peng2; Mao, Xuhui1; Wang, Dihua1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2015 |
| 卷号 | 3期号:16页码:8676-8682 |
| 英文摘要 | A significant improvement in adsorption capacity and selectivity for pollutants from wastewater over adsorbents is intrinsically limited by the disordered intra-granule pores of traditional adsorbents. Herein, we propose an unprecedented strategy of trapping pollutants between the interlayers of inorganic layered materials for the high-capacity and highly selective treatment of wastewater, utilizing the interlayer gaps of layered materials containing ordered two-dimensional (2D) nanoscaled channels for intra-lattice trapping of foreign species with sizes smaller than the interlayer gaps. Using such a trapping-between-interlayers mechanism, the layered matrixes can function as "sponges", absorbing pollutants by transforming the surface-adsorption of traditional adsorbents into bulk absorption. As a proof of concept, the trapping of toxic aniline with a diameter of 0.58 nm from alkaline aqueous solutions between interlayers of K+-preintercalated layered manganese oxides (delta-MnO2 or birnessite) with an interlayer gap of 0.73 nm via a K+/aniline exchange process is verified and rationalized by both experiments and density functional theory (DFT) simulations. An equilibrium aniline-removal capacity as high as 940.2 mg g(-1) is therefore achieved over hierarchically structured Mn3O4@delta-MnO2, one order of magnitude higher than that of traditional adsorbents. The proposed and verified strategy on trapping pollutants between the interlayers of inorganic layered materials opens a new avenue towards the high-capacity and highly selective treatment of wastewater. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28542]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Wei,Zhou, Peng,Mao, Xuhui,et al. Ultrahigh aniline-removal capacity of hierarchically structured layered manganese oxides: trapping aniline between interlayers[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(16):8676-8682. |
| APA | Xiao, Wei,Zhou, Peng,Mao, Xuhui,&Wang, Dihua.(2015).Ultrahigh aniline-removal capacity of hierarchically structured layered manganese oxides: trapping aniline between interlayers.JOURNAL OF MATERIALS CHEMISTRY A,3(16),8676-8682. |
| MLA | Xiao, Wei,et al."Ultrahigh aniline-removal capacity of hierarchically structured layered manganese oxides: trapping aniline between interlayers".JOURNAL OF MATERIALS CHEMISTRY A 3.16(2015):8676-8682. |
入库方式： OAI收割
来源：化学研究所
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