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A tale of two metal ions: contrasting behaviors of high oxidation states of Cu and Mn in a bicarbonate-H2O2 system
Yang, Zhiwei1,2; Tan, Xiaonan1; Tang, Daojian1; Li, Jing2; Ma, Jiahai1
2021-03-01
摘要In this study, the contrasting activities and pathways of Mn2+/Cu2+-HCO3- systems for Congo red (CR) dye degradation are presented. The Mn2+-HCO3- system (with the well-known Mn-IV=O as the reactive species) did not degrade CR, while the Cu2+-HCO3- system (with high-valent Cu proposed as the reactive species) had a good oxidizing ability for CR. Further, HO radicals in the classic Fenton-like system made no contribution to CR degradation with both Cu and Fe ions as catalysts. The results indicate that reactive species in metal-HCO3- AOPs need prudent examination and better understanding of the underlying mechanism would benefit the development of more efficient AOPs.
DOI10.1039/d0ew00910e
发表期刊ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
ISSN2053-1400
卷号7期号:3页码:479-486
通讯作者Li, Jing(jingli@cigit.ac.cn) ; Ma, Jiahai(majia@ucas.ac.cn)
收录类别SCI
WOS记录号WOS:000629315800015
语种英语