Enhanced oxidation of 4-chlorophenol using sulfate radicals generated from zero-valent iron and peroxydisulfate at ambient temperature
Enhanced oxidation of 4-chlorophenol using sulfate radicals generated from zero-valent iron and peroxydisulfate at ambient temperature
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在环境温度下利用零价铁和过二硫酸盐产生的硫酸根强化氧化 4-氯苯酚
DOI：
10.1016/j.seppur.2009.12.010
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发表时间：
2010-03
影响因子：
8.6
通讯作者：
Chen, Shuo
中科院分区：
文献类型：
--
作者：
Zhao, Jinying;Zhang, Yaobin;Quan, Xie;Chen, Shuo
An efficient advanced oxidation process, which is based on the zero-valent iron (ZVI)-mediated decomposition of peroxydisulfate (PDS) that results in the generation of very strong oxidizing species (sulfate radicals) in aqueous solution, is reported. Experiments were conducted in the dark using ZVI loading ranging from 0.05 to 0.40gL−1in the presence of PDS. The results showed that ZVI significantly improved the degradation efficiencies of 4-chlorophenol at ambient temperature. The optimum loading of ZVI was 0.20gL−1and 88% removal of 4-chlorophenol was observed in 1h of reaction time. The addition of methanol and tert-butyl alcohol as hydroxyl radical and sulfate radical scavengers proved the presence of sulfate radicals in the ZVI-PDS reaction system. The degradation of 4-chlorophenol was accompanied by the formation of hydroquinone, 1,4-benzoquinone, and small molecule compounds such as oxalic acid and succinic acid. Therefore, hydroquinone pathway was regarded as the main step in the oxidation of 4-chlorophenol. Chloride ion release and formation of oxidation intermediates were evidence of 4-chlorophenol degradation involving sulfate radicals.
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影响因子：
11.4
作者：
R. Spanggord;David Yao;T. Mill
通讯作者：
R. Spanggord;David Yao;T. Mill
影响因子：
11.4
作者：
Orth, WS;Gillham, RW
通讯作者：
Gillham, RW
影响因子：
12.8
作者：
Anotai, Jin;Lu, Ming-Chun;Chewpreecha, Parichat
通讯作者：
Chewpreecha, Parichat
影响因子：
8.8
作者：
Liang, CJ;Bruell, CJ;Sperry, KL
通讯作者：
Sperry, KL
影响因子：
8.8
作者：
Hirvonen, A;Trapido, M;Tarhanen, J
通讯作者：
Tarhanen, J