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晏井春博士在Chemosphere期刊上发表文章
发布时间:2019-11-01 15:06

课题组晏井春博士在Chemosphere期刊上发表文章


文章来源:https://www.sciencedirect.com/science/article/pii/S0045653519304047?via%3Dihub
题  目:Catalysis of hydrogen peroxide with Cu layered double hydrotalcite for the degradation of ethylbenzene
作  者
Yan, Jingchun  Chen, Yundong  Gao, Weiguo  Chen, Yun  Qian, Linbo  Han, Lu  Chen, Mengfang  

文章摘要:

        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.

 

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