单组分过渡金属氧化物及其复合材料催化Oxone去除4-氯酚的效能对比研究
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摘要
氯酚类化合物属于优先控制污染物。采用水热法合成了Cu O、Fe_3O_4及Cu O-Fe_3O_4复合材料,用于催化Oxone降解4-氯酚。研究了Cu O、Fe_3O_4及Cu O-Fe_3O_4复合材料催化Oxone降解4-氯酚的效能及影响因素,结果表明,CuO和Fe_3O_4进行复合后催化Oxone降解4-氯酚的反应效率及反应速率均得到显著的提高,且Cu O-Fe_3O_4复合材料的投加量低于Cu O、Fe_3O_4单独催化Oxone时的投加量,并且降解效果更佳。
Chlorophenols belong to priority control pollutants.CuO,Fe_3O_4 and Cu O-Fe_3O_(4 )composites were synthesized by hydrothermal method to catalyze the degradation of 4-chlorophenol by oxone.The effect of CuO,Fe_3O_4and CuO-Fe_3O_4 composite materials on the degradation of 4-chlorophenol by oxone was studied.The results showed that the reaction efficiency and reaction rate of 4-chlorophenol degradation by oxone over CuO and Fe_3O_4 composite materials were significantly improved,and the dosage of CuO-Fe_3O_4 composite materials was lower than that of CuO and Fe_3O_4 alone,and the degradation effect was better.
Chlorophenols belong to priority control pollutants.CuO,Fe_3O_4 and Cu O-Fe_3O_(4 )composites were synthesized by hydrothermal method to catalyze the degradation of 4-chlorophenol by oxone.The effect of CuO,Fe_3O_4and CuO-Fe_3O_4 composite materials on the degradation of 4-chlorophenol by oxone was studied.The results showed that the reaction efficiency and reaction rate of 4-chlorophenol degradation by oxone over CuO and Fe_3O_4 composite materials were significantly improved,and the dosage of CuO-Fe_3O_4 composite materials was lower than that of CuO and Fe_3O_4 alone,and the degradation effect was better.
引文
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[2]Wongwisate P,Chavadej S,Gulari E,et al.Effects of monometallic and bimetallic Au Ag supported on sol-gel Ti O2 on photocatalytic degradation of 4-chlorophenol and its intermediates[J].Desalination,2011,272(1):154-163.
[3]Wei P,Jie L,Chenxu L,et al.A multipath peroxymonosulfate activation process over supported by magnetic Cu O-Fe3O4 nanoparticles for efficient degradation of 4-chlorophenol[J].Korean Journal of Chemical Engineering,2018,35(8):1662-1672.
[4]Sun T,Zhao Z,Liang Z,et al.Efficient degradation of p-arsanilic acid with arsenic adsorption by magnetic CuO-Fe3O4 nanoparticles under visible light irradiation[J].Chemical Engineering Journal,2018,334:1527-1536.
[5]Liu J,Zhao Z,Shao P,et al.Activation of peroxymonosulfate with magnetic Fe3O4-MnO2 core-shell nanocomposites for 4-chlorophenol degradation[J].Chemical Engineering Journal,2015,262:854-861.
[6]Poulston S,Parlett P M,Stone P,et al.Surface oxidation and reduction of CuO and Cu2O studied using XPS and XAES[J].Surface&Interface Analysis,2015,24(12):811-820.
[7]Franzen H F,Uma?a M X,Mccreary J R,et al.XPS spectra of some transition metal and alkaline earth monochalcogenides[J].Journal of Solid State Chemistry,1976,18(4):363-368.
[8]Yamashita T.,Hayes P.Analysis of XPS spectra of Fe2+and Fe3+ions in oxide materials[J].Applied Surface Science,2008,254:2441-2449.
[9]Potter S.Economically viable synthesis of Fe3O4 nanoparticles and their characterization[J].Polish Journal of Chemical Technology,2011,13:1-5.
[10]Xu L,Wang J.Magnetic nanoscaled Fe3O4/CeO2 composite as an efficient Fenton-like heterogeneous catalyst for degradation of4-chlorophenol[J].Environmental Science&Technology,2012,46(18):10145-10153.
[11]张伟民,陈晔.催化湿式氧化对高浓度染料废水试验研究[J].当代化工,2018,47(10):2026-2029+2033..
[12]Yao Y,Cai Y,Wu G,et al.Sulfate radicals induced from peroxymonosulfate by cobalt manganese oxides(Cox Mn3-x O4)for Fenton-Like reaction in water[J].Journal of Hazardous Material,2015,296:128-137.