文献类型：期刊文献

英文题名：Use of molybdenum disulfide nanosheets embellished nanoiron for effective capture of chromium (VI) ions from aqueous solution

作者：Zhu, Yuling[1];Jin, Yang[1];Chang, Kaikai[1];Chen, Zhongshan[2];Li, Xue[3];Wu, Xilin[4];Jin, Chengan[1];Ye, Feng[1];Shen, Runpu[1];Dong, Wenhong[5];Asiri, Abdullah M.[6];Marwani, Hadi M.[6];Sheng, Guodong[1,2]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Coll Life Sci, Shaoxing 312000, Zhejiang, Peoples R China;[2]North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China;[3]Shaoxing Univ, Coll Yuanpei, Shaoxing 312000, Zhejiang, Peoples R China;[4]Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China;[5]Shaoxing Entry Exit Inspect & Quarantine Bur, Shaoxing 312000, Zhejiang, Peoples R China;[6]King Abdulaziz Univ, Fac Sci, Chem Dept, Jeddah 21589, Saudi Arabia

年份：2018

卷号：259

起止页码：376

外文期刊名：JOURNAL OF MOLECULAR LIQUIDS

收录：SCI-EXPANDED(收录号：WOS:000434004000041)、、EI(收录号：20181204934452)、Scopus(收录号：2-s2.0-85044138081)、WOS

基金：This study was supported by Shaoxing Science and Technology Plan Project (2017B70057), and Zhejiang Science and Technology Plan Project (2017C33231).

语种：英文

外文关键词：Nanoiron; Molybdenum disulfide nanosheets; Chromium capture; Reduction; Stabilization

外文摘要：A novel nanocomposite, i.e., molybdenum disulfide nanosheets embellished nanoiron (MoS2/NZVI), was synthesized by a modified NaBH4 reduction procedure, and used for the effective capture of Cr(VI) in water. The characteristic analysis implied that MOS2 could hinder the aggregation of NZVI. The batch experiments showed that Cr(VI) capture by NZVI/MOS2 (91.7%) was obviously higher than that of either bare NZVI (62.6%) or MOS2 (27.05%). The kinetics of Cr(VI) capture can be well described by the pseudo-second-order model. The effects of pH and natural organic matters were also evaluated. Solution pH was found to be significant to Cr(VI) capture, acidic environment (pH 5.0 and 6.0) was more suitable for Cr(VI) capture. However, natural organic matters demonstrated negative effects on Cr(VI) capture. The capture capacity of NZVI/MOS2 nanocomposite decreased from 126.42 mg/g to 118.48 and 121.07 mg/g when humic acid and fumic acid were present in the solution. X-ray photoelectron spectroscopy analysis of the mechanism indicated that adsorption, reduction, and precipitation were involved in the capture process. The results suggested that the NZVI/MOS2 nanocomposite may be a potential candidate for the capture of Cr(VI) from wastewater. (C) 2018 Elsevier B.V. All rights reserved.