T-FMSAC制备及其催化臭氧氧化去除p-CBA效能研究

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Abstract

Basing on the activated carbon prepared from sludge, different transition metals (Mn, Co, and Cu) doped ferromagnetic sludge-based activated carbons (T-FMSAC, T=Mn, Co, and Cu) were prepared by chemical coprecipitation method. The effects of metal species and doping ratio on the removal efficiency of p-chlorobenzoic acid (p-CBA) in water by T-FMSAC catalytic ozonation were investigated, and the optimal dosages of initial ozone and T-FMSAC catalyst were further determined. Experimental results showed that, after 40minutes of ozonation, Mn-FMSAC exhibited the highest catalytic activity under the initial ozone and catalyst dosage of 1mg/L and 40mg/L respectively, and the removal efficiency was 76%, higher than that for Co-FMSAC (72%) or Cu-FMSAC (65%). In addition, the removal efficiency of p-CBA decreased with the increase in the doping ratio from SAC:metal=100:1 to 10:1. With the doping ratio of 100:1, the T-FMSAC exhibited the optimal magnetic separation property and catalytic activity. The optimal condition for 100:1Mn-FMSAC catalytic ozonation was determined to be[O₃]₀=1mg/L and[FMSAC]₀=40mg/L. Besides, the inhibition of p-CBA degradation by tertiary butyl alcohol (TBA) indicated that this process followed the hydroxyl radical reaction mechanism.

Key words： ferromagnetic sludge-based activated carbon transition metal catalytic ozonation p-chlorobenzoic acid

Received: 21 October 2016

PACS:

X703

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	Articles by authors
	LU Si-ying
	SUN Zhong-en
	FENG Li
	ZHANG Li-qiu

Cite this article:

LU Si-ying,SUN Zhong-en,FENG Li等. Preparation of T-FMSAC and its catalytic ozonation performance on the removal of p-CBA in water[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(6): 2139-2144.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2017/V37/I6/2139

[1]	李璐,封莉,张立秋.污泥基活性炭表面官能团对其催化臭氧氧化活性的影响[J]. 环境化学, 2014,(6):937-42.
[2]	王红娟,齐飞,封莉.污泥基活性炭催化臭氧氧化降解水中微量布洛芬的效能研究[J]. 环境科学, 2012,33(5):1591-6.
[3]	GuTI RREZ-SEGURA. Adsorprion of cadmium by Na and Fe modified zeolitic tuffs and carbonaceous material from pyrolyzed sewage sludge[J]. Journal of Environmental Management, 2012, 97(2):6-13.
[4]	RAJPUT S. Modeling and evaluation of chromium remediation from water using low cost bio-char,a green adsorbent[J]. Journal of Hazardous Materials, 2011,188(1-3):319-33.
[5]	Bandosz T J. Effect of pyrolysis temperature and time on catalytic performance of sewage sludge/industrial sludge-based composite adsorbents[J]. Applied Catalysis B Environmental, 2006,67(1/2):77-85.
[6]	Hwang H R. The perparation of an adsorbent from mixtures of sewage sludge and coal-tar pitch using an alkaline hydroxide activation agent[J]. Journal of Analytical & Applied Pyrolysis, 2008,83(2):220-6.
[7]	Qian Q. Removal of copper from aqueous solution using iron-containing adsorbents derived from methane fermentation sludge[J]. 2009,172(2/3):1137-44.
[8]	李长波,赵国峥,王飞.负载型臭氧氧化催化剂研究进展[J]. 当代化工, 2014,(3):453-6.
[9]	任百祥,范晶莹,杨春维.磁性活性炭催化臭氧氧化降解水中甲基橙[J]. 化工环保, 2015,35(4):409-13.
[10]	莫冰玉,唐玉斌,陈芳艳.磁性活性炭的制备及其对水中甲基橙的吸附[J]. 环境工程学报, 2015,9(4):1863-8.
[11]	Kwon J H. Synthesis and characterization of magnetite and actived carbon binary composites[J]. Synthetic Metals, 2014, 197(4):8-17.
[12]	Shao L. Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal[J]. Materials Chemistry & Physics, 2012,135(1):16-24.
[13]	Qiang Z. Kinetics and mechanism for omethoate degradation by catalytic ozonation with Fe(Ⅲ)-loaded activated carbon in water[J]. Chemosphere, 2013,90(6):1966-72.
[14]	LI H. Degradation of bezafibrate in wastewater by catalytic ozonation with cobalt doped red mud:Efficiency, intermediates and toxicity[J]. Applied Catalysis B Environmental, 2014,s152-253(1):342-51.
[15]	LAN B. Catalytic ozonation of p-chlorobenzoic acid in aqueous solution using Fe-MCM-41as catalyst[J]. Chemical Engineering Journal, 2013,219(3):346-54.
[16]	SUI M. Heterogeneous catalytic ozonation of ciprofloxacin in water with carbon nanotube supported manganese oxides as catalyst[J]. Journal of Hazardous Materials, 2012,s227-228(227-228):227-36.
[17]	LI M. Influence of modification method and transition metal type on the physicochemical properties of MCM-41catalysts and their performances in the catalytic ozonation of toluene[J]. Applied Catalysis B Environmental, 2011,107(3/4):245-52.
[18]	Zhao L. Enhancement Mechanism of Heterogeneous Catalytic Ozonation by Cordierite-Supported Copper for the Degradation of Nitrobenzene in Aqueous Solution[J]. Environmental Science & Technology, 2009,43(6):2047-53.
[19]	Bander H. Determination of ozone in water by the indigo method[J]. Water Research, 1981,15(4):449-56.
[20]	LI L. Catalytic ozoantion of dimethyl phthalate over cerium supported on activated carbon[J]. Joural of Hazardous Materials, 2009,170(1):411-6.
[21]	Huang R. Catalytic activity of Fe/SBA-15for ozonation of dimethyl phthalate in aqueous solution[J]. Applied Catalysis B Environmental, 2011,106(1/2):264-71.
[22]	FELLENZ N A. Influence of Bronsted and Lewis acid sites on the catalytic activity and selectivity of Fe/MCM-41system[J]. Applied Catalysis A General, 2012,s435-436(17):187-96.
[23]	LIU H. Activated carbon and cerium supported on activated carbon applied to the catalytic ozonation of polycyclic aromatic hydrocarbons[J]. Journal of Molecular Catalysis A Chemical, 2012,363-364(11):101-7.