实验室新闻

    科研进展

    实验室公告

    学术活动公告

 
[CHEMOSPHERE],卷: 225 页: 157-165
 点击数:119次 添加时间:  [关闭] [收藏]

作者:Yan, JC (Yan, Jingchun) ; Chen, YD (Chen, Yudong) ; Gao, WG (Gao, Weiguo) ; Chen, Y (Chen, Yun) ; Qian, LB (Qian, Linbo) ; Han, L (Han, Lu); Chen, MF (Chen, Mengfang)

 

题目:Catalysis of hydrogen peroxide with Cu layered double hydrotalcite for the degradation of ethylbenzene

 

刊物:CHEMOSPHERE,卷: 225  页: 157-165

DOI: 10.1016/j.chemosphere.2019.02.180

出版年: JUN 2019

 

摘要:

A high catalytic system using Cu layered double hydrotalcite (Cu(II)-Mg(II)-Fe(III)LDHs) and hydrogen peroxide (H2O2) was developed for the degradation of ethylbenzene. It was identified that the degradation efficiency of ethylbenzene (0.08 mmol L-1) and TOC removal were 96.1% and 39.7% respectively in the presence of 0.1 g L-1 Cu(II)-Mg(II)-Fe(III)LDHs with (Cu2+ + Mg2+)/Fe3+ molar ratio of 5.0 and 0.16 mmol L-1 H2O2 in 6.0 h. Based on ESR and XPS data, hydroxyl radicals (center dot OH) were the predominant free radical specials generated from the catalytic decomposition of H2O2 for the degradation of ethylbenzene. The redox of Cu(II)/Cu(III) on the layered Cu(II)-Mg(II)-Fe(III)LDHs surface active sites accounted for the formation of center dot OH radicals and the cycle of Cu(II) in the Cu(II)-Mg(II)-Fe(III)LDHs/H2O2 system were proposed. (C) 2019 Elsevier Ltd. All rights reserved.

 

 

 

 


 

版权所有:中国科学院南京土壤研究所 苏ICP备05004320号 地 址:江苏省南京市北京东路71号 邮编:210008 网站管理