K<sub>2</sub>FeO<sub>4</sub>氧化降解3,4－二甲基苯胺的机理研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (622 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The apparent kinetics and reaction mechanism of catalytic oxidation were investigated by using 3,4-dimethylaniline as the target pollutant and potassium ferrate (K₂FeO₄) as the oxidant. The new equation established for 3,4-dimethylaniline degradation by K₂FeO₄ was as follows:r=0.0043C_A^0.486C_B^1.2479. The reaction order was 1.7334, which conformed to the pseudo-second order kinetic equation. Meanwhile, the intermediate products during the degradation were analyzed through the GC/MS technology. It was presumed that 3,4-dimethylaniline was converted to 2,4-dimethylaniline at first, then the amide & methyl on the benzene ring were oxidized successively before 4-nitroisophthalic acid was formed. Due to decarboxylation, 4-nitroisophthalic acid was oxidized to nitrobenzene and further to a batch of cationic benzenes, and then decomposed into a series of small molecular hydrocarbons by destroying the phenyl structure. In final, these hydrocarbons were degraded into carbon dioxide and water. It was presumed that the control reaction of the oxidation-reduction was a two-steps process:in the first step, the potassium ferrate attacked the side chains on the 3,4-dimethylaniline benzene ring; secondly the ring-opening reaction of the benzene occurred. All in all, this degradation process mainly composed of two kinds of reaction mechanisms:surface complexation and interfacial catalysis.

Key words： potassium ferrate 3,4-dimethylaniline pseudo-second order kinetics surface complexation catalysis interface catalysis

Received: 11 October 2017

X703

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YANG Wei-yi
	LI Meng
	ZHANG Qian
	XIANG Wen-qi

Cite this article:

YANG Wei-yi,LI Meng,ZHANG Qian等. Mechanism of degradation of 3,4-dimethylaniline by K₂FeO₄[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(5): 1744-1751.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I5/1744

[1]	崔凯,沈宏.3,4-二甲基苯胺的合成研究[J]. 化学试剂, 2017,39(8):901-903.
[2]	孙文敬,高润香.核黄素合成路线的优化[J]. 中国药学杂志, 1999,34(8):562-564.
[3]	宋鑫,任立人,吴丹,等.制药废水深度处理技术的研究现状及进展[J]. 广州化工, 2012,40(12):29-31.
[4]	Falguni B, Chandra S N, Anilava K. Effects of aniline-an aromatic amine to some freshwater organisms[J]. Ecotoxicology (London, England), 2003,12(5):397-404.
[5]	Hoppe M L, Schlemper E O, Murmann R K. Structure of dipotassium ferrate (VI)[J]. Acta Crystallographica, 2001,38(8):2237-2239.
[6]	Sharma V K. Destruction of cyanide and thiocyanate by ferrate[Iron (VI)][J]. European Journal of Mineral Processing & Environmental Protection, 2003,3:1303-868.
[7]	苑宝玲,曲久辉.高铁酸盐氧化絮凝去除藻类的机制[J]. 中国环境科学, 2002,22(5):397-399.
[8]	刘伟,马军.高铁酸盐预氧化对藻类细胞的破坏作用及其助凝机理[J]. 环境科学学报, 2002,22(1):24-28.
[9]	夏庆余,王丽琼,陈力勤,等.电解制备高铁酸盐及其处理苯胺废水的研究[J]. 化工环保, 2005,25(2):88-92.
[10]	董娟.化学氧化法制备高铁酸钾及其处理有机废水的研究[D]. 上海:东华大学, 2007:54-56.
[11]	张洋,罗志勇,屈勇军,等.高铁酸钾预处理垃圾渗滤液[J]. 环境工程学报, 2014,8(6):2451-2455.
[12]	Jiang J Q, Wang S, Panagoulopoulos A. The role of potassium ferrate (VI) in the inactivation of Escherichia coli and in the reduction of COD for water remediation[J]. Desalination, 2007,210(1):266-273.
[13]	苑丹丹,田蕾,沈筱彦.苯胺有机废水处理技术研究进展[J]. 能源化工, 2017,38(2):60-64.
[14]	Bouzek K, Roušar I. Influence of anode material on current yields during ferrate(VI) production by anodic iron dissolution Part I:Current efficiency during anodic dissolution of grey cast iron to ferrate (VI) in concentrated alkali hydroxide solutions[J]. Journal of Applied Electrochemistry, 1996,26(9):919-923.
[15]	乔磊.电解制备高铁酸钾及其降解污染物的研究[D]. 郑州:郑州大学, 2007:15-16.
[16]	覃奇贤,刘淑兰.电镀液的电流效率及其测定方法[J]. 电镀与精饰, 2008,30(4):27-29.
[17]	姜洪泉,刘红.亚铬酸盐滴定法测定高铁酸钾[J]. 佳木斯大学学报, 2001,19(1):106-108.
[18]	郑怀礼,邓琳莉,吉方英,等.高铁酸钾制备新方法与光谱表征[J]. 光谱学与光谱分析, 2010,30(10):2646-2649.
[19]	赵国保,任源,蒋争明,等. O3/UV深度处理焦化废水的条件控制及其效能评估[J]. 中国给水排水, 2013,29(5):32-36.
[20]	杨晓芬,赵美萍,李元宗,等.水中苯胺类化合物的分光光度法测定[J]. 分析化学, 2002,30(5):540-543.
[21]	冉亮,周俊,郝祥忠,等.高铁酸钾的研究现状[J]. 安徽化工, 2007,(1):20-23.
[22]	De Marco M J, Sengupta A K, Greenleaf J E. Arsenic removal using a polymeric/inorganic hybrid sorbent[J]. Water Reserch, 2003,37(1):164-176.
[23]	曲久辉,林谡,田宝珍,等.高铁酸盐氧化絮凝去除水中腐殖质的研究[J]. 环境科学学报, 1999,19(5):510-514.
[24]	Kamachi T, Kouno T, Yoshizawa K. Participation of multioxidants in the pH dependence of the reactivity of ferrate (VI)[J]. Journal of Organic Chemistry, 2005,70(11):4380-4388.
[25]	杨卫华,王鸿辉,曾晓旭,等.高铁酸钾处理水中十六烷基三甲基溴化铵[J]. 环境科学, 2009,30(8):2277-2281.
[26]	邝代治,张志坚,冯泳兰,等.氨基在苯胺亲电取代反应中的定位效应讨论[J]. 化学教学, 2010,(6):6-8.
[27]	Xue X F, Hanna K, Abdelmoula M, et al. Adsorption and oxidation of PCP on the surface of magnetite:Kinetic experiments and spectroscopic investigations[J]. Applied Catalysis B:Environmental, 2009,89(3/4):432-440.
[28]	庞素艳,江进,马军,等. MnO2催化KMnO4氧化降解酚类化合物[J]. 环境科学, 2010,31(10):2331-2335.
[29]	Lin S S, Gurol M D. Catalytic decomposition of hydrogen peroxide on iron oxide:kinetics, mechanism, and implications[J]. Environmental Science & Technology, 1998,32(10):1417-1423.
[30]	龚艳,林鹿,孙勇,等.脱羧反应途径及其机制的研究进展[J]. 化学与生物工程, 2008,25(4):1-6.
[31]	郑璐.高铁酸盐的制备和应用基础研究[D]. 上海:复旦大学, 2006:71-73.