文献类型：期刊文献

英文题名：Simultaneous Degradation and Removal of CrVI from Aqueous Solution with Zr-Based Metal-Organic Frameworks Bearing Inherent Reductive Sites

作者：Wang, Zhe[1];Yang, Jian[1];Li, Yongsheng[1];Zhuang, Qixin[1];Gu, Jinlou[1]

机构：[1]East China Univ Sci & Technol, Minist Educ, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2017

卷号：23

期号：61

起止页码：15415

外文期刊名：CHEMISTRY-A EUROPEAN JOURNAL

收录：;EI(收录号：20174504370241);WOS:【SCI-EXPANDED(收录号:WOS:000414351400022)】；

基金：This work was financially supported by the Natural Science Foundation of China (51072053, 51372084), and the 111 Project (B14018).

语种：英文

外文关键词：adsorption and degradation; Cr-VI decontamination; metal-organic frameworks; UiO-66-(OH)(2); wastewater treatment

摘要：Given the serious harm of Cr-VI to human health, development of efficient techniques for its degradation and subsequent insitu adsorptive removal is highly desirable. Herein, UiO-66 type metal-organic frameworks (MOFs) integrated with various hydroxyl groups (UiO-66, UiO-66-OH, and UiO-66-(OH)(2)) were successfully explored for the efficient decontamination of Cr-VI from aqueous solution. The abundant hydroxyl groups in organic ligands not only served as reductive sites for the degradation of Cr-VI to less toxic Cr-III but also acted as inherent anchorages for the efficient capture of Cr-III. Thanks to their inherent hydroxyl groups and high porosity, UiO-66-(OH)(2) presented almost complete removal of Cr species in simulated industrial wastewater. The total Cr content could be reduced from 5ppm to 48ppb under optimized adsorption conditions, which is much lower than the limits of total Cr in drinking water established by the US Environmental Protection Agency (EPA). These outstanding Cr-VI decontamination features, combined with the exceptional chemical stability as well as high porosity prefigured the great potentials of the current adsorbents for the remediation of real-world Cr-VI-containing industrial wastewater.