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首页> 外文期刊>Environmental Pollution >Simultaneous Cr(Ⅵ) reduction and Cr(Ⅲ) removal of bifunctional MOF/Titanate nanotube composites
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Simultaneous Cr(Ⅵ) reduction and Cr(Ⅲ) removal of bifunctional MOF/Titanate nanotube composites

机译：同时Cr（Ⅵ）还原和Cr（Ⅲ）去除双功能MOF /钛酸盐纳米管复合材料

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摘要

In this study, a series of BUC-21/titanate nanotube (BT-X) composites were facilely fabricated via ball-milling of 2-dimensional (2D) metal-organic framework (MOF) BUC-21 and titanate nanotubes (TNTs). The BT-X composites were characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), UV-visible diffuse-reflectance spectroscopy (UV-vis DRS), X-ray photoelectron spectrometer (XPS) and high resolution transmission electron microscopy (HRTEM). Both the photocatalytic reduction from Cr(VI) to Cr(III) and adsorptive removal of formed Cr(Ill) of BT-X composites were systematically investigated under different conditions including pH values and co-existing inorganic ions. It was found that BUC-21 (100 mg)/TNTs (100 mg) (BT-1) composites demonstrate remarkable ability of photocatalytic Cr(VI) reduction and adsorptive Cr(III) removal, as well as good reusability and stability. It is believed that the introduction of TNTs could capture the formed Cr(III) from the surface of BUC-21, which provided more active sites exposed to enhance the Cr(VI) reduction. (C) 2019 Elsevier Ltd. All rights reserved.
机译：在本研究中，通过二维（2D）金属 - 有机骨架（MOF）Buc-21和钛酸酯纳米管（TNT）的滚珠研磨，通过球磨，施加一系列Buc-21 /钛酸盐纳米管（BT-X）复合材料。通过粉末X射线衍射（PXRD），傅里叶变换红外光谱（FTIR），透射电子显微镜（TEM），UV可见光散射反射光谱（UV-VIS DRS），X射线光电电体光谱仪（XPS）和高分辨率透射电子显微镜（HRTEM）。在不同的条件下系统地研究来自Cr（VI）至Cr（III）至Cr（III）至Cr（III）的吸附除去Bt-X复合材料的吸附去除。（包括pH值和共存的无机离子）。发现Buc-21（100mg）/ tnts（100mg）（Bt-1）复合材料表现出显着的光催化Cr（VI）还原和吸附Cr（III）的去除能力，以及良好的可重用性和稳定性。据信TNT的引入可以从Buc-21的表面捕获形成的Cr（III），其提供了更多的活性位点，以增强Cr（VI）还原。 （c）2019 Elsevier Ltd.保留所有权利。

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  • 来源
    《Environmental Pollution》 |2019年第6期|502-511|共10页
  • 作者

    Wang Xun; Liu Wen; Fu Huifen; Yi Xiao-Hong; Wang Peng; Zhao Chen; Wang Chong-Chen; Zheng Weiwei;

  • 作者单位

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Peking Univ Coll Environm Sci & Engn Minist Educ Key Lab Water & Sediment Sci Beijing 100871 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Adv Innovat Ctr Future Urban Design Beijing Key Lab Funct Mat Bldg Struct & Environm Beijing 100044 Peoples R China;

    Syracuse Univ Dept Chem Syracuse NY 13244 USA;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    BUC-21; Titanate nanotubes; Photocatalysis; Adsorption; Chromium;

    机译：Buc-21;钛酸纳米管;光催化;吸附;铬;

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