标题:Kinetics of Solvent Blue and Reactive Yellow removal using microwave radiation in combination with nanoscale zero-valent iron
作者:Mao, Yanpeng; Xi, Zhenqian; Wang, Wenlong; Ma, Chunyuan; Yue, Qinyan
作者机构:[Mao, Y] School of Energy and Power Engineering, Shandong University, Jinan, 250100, China;[ Xi, Z] School of Energy and Power Engineering, Shandong U 更多
通讯作者:Yue, Qinyan(qyyue58@aliyun.com)
通讯作者地址:[Yue, QY]Shandong Univ, Sch Environm Sci & Engn, Jinan 250100, Peoples R China.
来源:环境科学学报(英文版)
出版年:2015
卷:30
页码:164-172
DOI:10.1016/j.jes.2014.09.030
关键词:Microwave;nZVI;Dye;Efficiency;Kinetics
摘要:We investigated the efficiency and kinetics of the degradation of soluble dyes over the pH range 5.0-9.0 using a method employing microwave radiation in combination with nanoscale zero-valent iron (MW-nZVI). The nZVI particles (40-70 nm in diameter) were prepared by a liquid-phase chemical reduction method employing starch as a dispersant. Compared to the removal of Solvent Blue 36 and Reactive Yellow K-RN using only nZVI, more rapid and efficient dye removal and total organic carbon removal were achieved using MW-nZVI. The dye removal efficiency increased significantly with decreasing pH, but was negligibly affected by variation in the microwave power. The kinetics of dye removal by MW-nZVI followed both an empirical equation and the pseudo first-order model, while the kinetics of dye removal using nZVI could only be described by an empirical equation. It was also concluded that microwave heating of the dye solutions as well as acceleration of corrosion of nZVI and consumption of Fe(II) were possible reasons behind the enhanced dye degradation. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
收录类别:EI;CSCD;SCOPUS;SCIE
WOS核心被引频次:10
Scopus被引频次:12
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84926519989&doi=10.1016%2fj.jes.2014.09.030&partnerID=40&md5=29672855e9888eae9561e2d7f3bd9afc
TOP