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| Efficacy and influencing factors of electrocatalytic degradation of m-cresol in wastewater by activated carbon fiber as three-dimensional electrodes |
| LIU Wei-jun1,2, DUAN Ping-zhou1, HU Xiang1, GAO Jian-jun2, ZHOU Fen-tao2 |
1. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2. Shanxi Jinhuankeyuan Environmental Resources Technology Co., Ltd, Taiyuan 030024, China |
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Abstract The feasibility and efficiency of m-cresol removal with three different categories of activated carbon fibers (ACFs) as particle electrodes were investigated. The surface morphology of activated carbon fibers was examined by scanning electron microscopy (SEM). The pore structure and specific surface area of activated carbon fibers were studied by BET. The variety and number of surface functional groups of activated carbon fibers were characterized by temperature programmed desorption (TPD-Ms). It was found the activated carbon fibers were formed by cro ss binding of single bundle fibers structure with a large specific surface area (>1480m2/g) and diverse functional groups. Furthermore, influence of operating parameters was investigated including the effects of ACFs types, contact mode of ACFs and electrode, as well as initial pH. The electrochemical degradation results demonstrated that the excessive oxygen functional groups on the surface of ACFs might be adverse to the removal rate of pollutants. The electrooxidation efficiency of three-dimensional electrodes increases significantly with the decrease of pH, and different electrode contact modes also have great influence on the electrooxidation effect of three-dimensional electrode.
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Received: 16 May 2018
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| [1] |
Liu P J, He S B, Wei H Z, et al. Characterization of α-Fe2O3/γ-Al2O3 catalysts for catalytic wet peroxide oxidation of m-cresol[J]. Industrial & Engineering Chemistry Research, 2015,54(1):130-136.
|
| [2] |
GB 8978-1996污水综合排放标准[S]. GB 8978-1996 Integrated wastewater discharge standard[S].
|
| [3] |
Kennedy L J, Vijaya J J, Sekaran G, et al. Equilibrium, kinetic and thermodynamic studies on the adsorption of m-cresol onto micro 10.1016/j.jhazmat.2007.03.061-and mesoporous carbon[J]. Journal of Hazardous Materials, 2007,149(1):134-143.
|
| [4] |
Ahamad P Y A, Kunhi A A M. Degradation of high concentrations of cresols by Pseudomonas sp CP4[J]. World Journal of Microbiology & Biotechnology, 1999,15(2):321-323.
|
| [5] |
Yu Y, Wei H Z, Yu L, et al. Catalytic wet air oxidation of m-cresol over a surface-modified sewage sludge-derived carbonaceous catalyst[J]. Catalysis Science & Technology, 2016,6(4):1085-1093.
|
| [6] |
Yu Y, Wei H Z, Yu L, et al. Sewage-sludge-derived carbonaceous materials for catalytic wet hydrogen peroxide oxidation of m-cresol in batch and continuous reactors[J]. Environmental Technology, 2016,37(2):153-162.
|
| [7] |
Zhou H, Guo J J, Li P, et al. Leaf-architectured 3D hierarchical artificial photosynthetic system of perovskite titanates towards CO2 photoreduction into hydrocarbon fuels[J]. Scientific Reports, 2013,3.
|
| [8] |
张小玲,班云霄. LED联合玻璃纤维光催化填料对苯酚的降解研究[J]. 中国环境科学, 2018,38(8):2941-2946. Zhang X L, Ban Y X. Study on the degradation of phenol by UV-LED combined with glass fiber photocatalytic fillers[J]. China Environmental Science, 2018,38(8):2941-2946.
|
| [9] |
Sires I, Brillas E, Oturan M A, et al. Electrochemical advanced oxidation processes:today and tomorrow. A review[J]. Environmental Science and Pollution Research, 2014,21(14):8336-8367.
|
| [10] |
Hermosilla D, Merayo N, Gasco A, et al. The application of advanced oxidation technologies to the treatment of effluents from the pulp and paper industry:a review[J]. Environmental Science and Pollution Research, 2015,22(1):168-191.
|
| [11] |
Xiong Y, He C, Karlsson H T, et al. Performance of three-phase three-dimensional electrode reactor for the reduction of COD in simulated wastewater-containing phenol[J]. Chemosphere, 2003, 50(1):131-136.
|
| [12] |
Xiong Y, He C, An T C, et al. Removal of formic acid from wastewater using three-phase three-dimensional electrode reactor[J]. Water, Air, and Soil Pollution, 2003,144(1):67-79.
|
| [13] |
伍波,李鹏,张波,等.负载型粒子电极电催化氧化苯酚的研究[J]. 中国环境科学, 2015,35(8):2426-2432. Wu B, Li P, Zhang B, et al. Electro-catalytic performance of the activated carbon supported metal oxide as particulate electrode for phenol oxidation[J]. China Environmental Science, 2015,35(8):2426-2432.
|
| [14] |
Wu X B, Yang X Q, Wu D C, et al. Feasibility stud of using carbon aerogel as particle electrodes for decoloration of RBRX dye solution in a three-dimensional electrode reactor[J]. Chemical Engineering Journal, 2008,138(1-3):47-54.
|
| [15] |
Boudenne J L, Cerclier O. Performance of carbon black-slurry electrodes for 4-chlorophenol oxidation[J]. Water Research, 1999, 33(2):494-504.
|
| [16] |
Sharifian H, Kirk D W. Electrochemical oxidation of phenol[J]. Journal of the Electrochemical Society, 1986,133(5):921-924.
|
| [17] |
张芳,李光明,盛怡,等.电催化氧化法处理苯酚废水的Mn-Sn-Sb/γ-Al2O3粒子电极研制[J]. 化学学报, 2006,64(3):235-239. Zhang F, Li G M, Sheng Y, et al. Preparation of Mn-Sn-Sb/γ-Al2O3 particle-electrodes for electrocatalytic oxidation of phenol wastewater[J]. Acta Chimica Sinica, 2006,64(3):235-239.
|
| [18] |
Gu L, Wang B, Ma H Z, et al. Catalytic oxidation of anionic surfactants by electrochemical oxidation with CuO-Co2O3-PO43- modified kaolin[J]. Journal of Hazardous Materials, 2006,137(2):842-848.
|
| [19] |
Ma L, Sun C L, Ren J, et al. Efficient electrochemical incineration of phenol on activated carbon fiber as a new type of particulates[J]. Russian Journal of Electrochemistry, 2014,50(6):569-578.
|
| [20] |
Chou W L, Wang C T, Chang C P. Comparison of removal of Acid Orange 7 by electrooxidation using various anode materials[J]. Desalination, 2011,266(1-3):201-207.
|
| [21] |
Hueso J L, Espinós J P, Caballero A, et al. XPS investigation of the reaction of carbon with NO, O2, N2 and H2O plasmas[J]. Carbon, 2007,45(1):89-96.
|
| [22] |
孙杰,钟超,彭巧丽.活性炭纤维复合阴极材料电芬顿降解苯酚[J]. 中南民族大学学报(自然科学版), 2015,34(2):6. Sun J, Zhong C, Peng Q L. Electro-Fenton degradation of phenol using hybridized activated carbon fiber as cathode materials[J]. Journal of South-Central University for Nationalities (Natural Science Edition), 2015,34(2):6.
|
|
|
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