文献类型：期刊文献

英文题名：Removal of reactive brilliant red X-3B by a weak magnetic field enhanced Fenton-like system with zero-valent iron

作者：Liang, Liping[1,2];Zhang, Yuting[1];Cheng, Liubiao[1];Wu, Qian[1];Xue, Yuanyuan[1];Wang, Qian[1];Meng, Xu[3,4]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Peoples R China;[2]Shaoxing Univ, Coll Life Sci, Shaoxing 312000, Peoples R China;[3]Shaoxing Univ, Coll Text & Garment, Shaoxing 312000, Peoples R China;[4]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China

年份：2020

卷号：10

期号：54

起止页码：32671

外文期刊名：RSC ADVANCES

收录：SCI-EXPANDED(收录号：WOS:000567492100040)、、EI(收录号：20203809182913)、Scopus(收录号：2-s2.0-85090772903)、WOS

基金：The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Grant No. 41807468), Zhejiang Provincial Natural Science Foundation of China (Grant No. LY18E080018), State Key Laboratory of Pollution Control and Resource Reuse Foundation, (Grant No. PCRRF18021).

语种：英文

外文关键词：Corrosion - Iron - Magnetic fields - Magnetization - Particle size

外文摘要：The effect of a weak magnetic field (WMF) on the removal of reactive brilliant red X-3B (X-3B) by zero-valent iron (ZVI)/H(2)O(2)was studied. The optimum conditions for the removal of X-3B by the ZVI/H2O2/WMF system were as follows: pH = 4.0, X-3B was 50 mg L-1, H(2)O(2)was 8 mM, and ZVI with particle size of 20 mu m was 0.5 g L-1. The X-3B decolorization rate could reach 99.41% in 10 minutes. The superposed WMF increased the working pH of ZVI from 3.0 to 4.0. The main part of ZVI/H(2)O(2)removal kinetics of X-3B followed the zero order rate law. In this study, the removal effect of X-3B by pre-magnetization ZVI was not as good as that of real-time magnetization, but it was better than the removal of X-3B by the ZVI/H(2)O(2)system. The ZVI/H2O2/WMF system still had the ability to remove X-3B after 4 consecutive cycles. The use of WMF improved the removal of X-3B by ZVI/H(2)O(2)mainly due to the corrosion of ZVI. Under acidic conditions, WMF enhanced the activity of ZVI, which promoted the efficiency of the Fenton reaction. The use of WMF to enhance the ZVI/H(2)O(2)removal X-3B was a promising and environmental friendly process because it did not require additional energy and expensive reagents and did not cause secondary pollution.