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Fenton-like degradation of dimethyl phthalate enhanced by quinone species
Xiao, Juan1; Wang, Chuan2; Liu, Hong3
2020-01-15
摘要Fenton-like degradations of dimethyl phthalate (DMP) and phenolic compounds (phenol, catechol, resorcinol, and hydroquinone) in single and binary systems were investigated by focusing on the Fe(III)/Fe(II) redox cycle during the reaction processes. Quinone-like substances were generated and found to be responsible for the autocatalytic transformation of Fe(III) to Fe(II) in the Fenton-like process with DMP or phenolics. Moreover, phenolic compounds could accelerate the Fenton-like degradation of DMP, with an increased efficiency of H2O2 utilization. The effect of phenolic compounds on the degradation of DMP followed the order: catechol approximate to hydroquinone > resorcinol > phenol, which could be attributed to the interaction between quinone-like substances and iron ions. Hydroquinone-like substances accelerated the Fe(III)/(II) redox cycle. The formation of iron complexes between catechol-like substances and iron ions facilitated the release of H+ and regeneration of Fe(II). In addition, a plausible mechanism for enhanced Fenton-like degradation of DMP by phenolics was proposed.
关键词Fenton-like Dimethyl phthalate Phenolics Fe(III) reduction Complex
DOI10.1016/j.jhazmat.2019.121007
发表期刊JOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
卷号382页码:9
通讯作者Wang, Chuan(wangchuan@gzhu.edu.cn) ; Liu, Hong(416145493@qq.com)
收录类别SCI
WOS记录号WOS:000501387100001
语种英语