文献类型：期刊文献

英文题名：Adsorptive and reductive removal of U(VI) by Dictyophora indusiate-derived biochar supported sulfide NZVI from wastewater

作者：Pang, Hongwei[1,2];Diao, Zhuofan[1];Wang, Xiangxue[1,3];Ma, Yan[1];Yu, Shujun[1];Zhu, Hongtao[3];Chen, Zhongshan[1];Hu, Baowei[2];Chen, Jianrong[4];Wang, Xiangke[1]

机构：[1]North China Elect Power Univ, Coll Environm Sci & Engn, MOE Key Lab Resources & Environm Syst Optimizat, Beijing 102206, Peoples R China;[2]Shaoxing Univ, Sch Life Sci, Huancheng West Rd 508, Shaoxing 312000, Peoples R China;[3]North China Elect Power Univ, Dept Environm Sci & Engn, Baoding 071003, Peoples R China;[4]Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China

年份：2019

卷号：366

起止页码：368

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：SCI-EXPANDED(收录号：WOS:000459903100035)、、WOS

基金：This work was supported by the Fundamental Research Funds for the Central Universities (2018ZD11 and 2018MS114), the National Natural Science Foundation of China (21876048, 21836001, 21577032, 21607042), the National Key Research and Development Program of China (2017YFA0207002), and the Guangdong Provincial Key Laboratory of Environmental Pollution and Health (No. GZKLEPH201815).

语种：英文

外文关键词：Biochar; Nanoscale zero-valent iron; U(VI); Adsorption and reduction; Removal mechanism

外文摘要：Nanoscale zero-valent iron (NZVI) has been considered as a potential scavenger for U(VI) elimination from aqueous environment. To decrease the aggregation and to improve antioxidation, sulfidation technology and biochar were applied to modify NZVI. In this work, Dictyophora indusiate-derived biochar supported sulfide NZVI (DI-SNZVI) was synthesized and applied for U(VI) elimination. The excellent behaviors of kinetics (3 h for equilibrium), thermodynamic research and maximum removal amounts (427.9 mg . g(-1) at pH= 5.0 and 298 K) revealed the outstanding performances of DI-SNZVI in U(VI) removal. The cycle experiments and different water system investigations further illustrated its potential ability for real applications. Moreover, the abundant functional groups and FeSx shell of DI-SNZVI were proved to be responsible for the enhanced removal of U(VI). In the end, the macroscopic and XPS study revealed that U(VI) elimination mechanisms were synergistic attributed to the adsorptive and reductive processes. This paper highlighted the biochar-based sulfide NZVI for efficient U(VI) elimination in environmental pollution management.