Modification of mesoporous activated carbon for adsorption of PCDD/Fs

被引：3
作者：
Zhao, Xi-Yuan [1 ]
Li, Xiao-Dong [1 ]
Zhou, Xu-Jian [1 ]
Chen, Tong [1 ]
Lu, Sheng-Yong [1 ]
Cen, Ke-Fa [1 ]
机构：
[1] State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2015年 / 49卷 / 10期
关键词：
Activated carbon; Catalytic modification; Ferric nitrate; Mesopore; PCDD/Fs;
D O I：
10.3785/j.issn.1008-973X.2015.10.003
中图分类号：
学科分类号：
摘要：
Commercial wood-based activated carbon was modified to prepare specified mesoporous activated carbon by Fe(NO3)3-impregnation coupled with CO2 activation in order to increase adsorption capacity of PCDD/Fs. Process variables such as impregnation ratio, activation temperature and activation time were considered. Results show that when the impregnation ratio is 1%, the temperature is 900℃, the rate of CO2 is 0.5 L/min and the activation is 2 hours, the mesopore (2-5 nm) volume of modified activated carbon can reach 0.37 cm3/g and account for 62.1% of the total pore volume. An adsorption generator was applied for the adsorption of PCDD/Fs. Results show that the modified one can have a larger adsorption capacity of PCDD/Fs compared to the original activated carbon. Its toxic equivalent quantity (TEQ) removal efficiency can reach 61.4%, while the original activated carbon is only 43.0%. ©, 2015, Zhejiang University. All right reserved.
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页码：1842 / 1848
页数：6
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共 21 条
  • [1] Olie K., Vermeulen P.L., Hutzinger O., Chlorodibenzo-p-dioxins and chlorodibenzofurans are trace components of fly ash and flue gas of some municipal incinerators in the Netherlands, Chemosphere, 6, 8, pp. 455-459, (1977)
  • [2] Nagano S., Tamon H., Adzumi T., Et al., Activated carbon from municipal waste, Carbon, 38, 6, pp. 915-920, (2010)
  • [3] Chi K.H., Chang S.H., Huang C.H., Et al., Partitioning and removal of dioxin-like congeners in flue gases treated with activated carbon adsorption, Chemosphere, 64, 9, pp. 1489-1498, (2006)
  • [4] Ma X.-H., Li X.-D., Adsorption behavior of dioxin on specific activated carbons, Energy Engineering, 3, pp. 50-54, (2013)
  • [5] Li Y., Li K., Synthesis of mesoporous carbon by catalytic activation using rare earth elements, Carbon, 48, 13, pp. 3974-3975, (2010)
  • [6] Ozaki J., Endo N., Ohizumi W., Et al., Novel preparation method for the production of mesoporous carbon fiber from a polymer blend, Carbon, 35, 7, pp. 1031-1033, (1997)
  • [7] Chang K.W., Lim Z.Y., Du F.Y., Et al., Synthesis of mesoporous carbon by using polymer blend as template for the high power supercapacitor, Diamond and Related Materials, 18, 2, pp. 448-451, (2009)
  • [8] Liu Z.C., Ling L.C., Qiao W.M., Et al., Preparation of pitch-based spherical activated carbon with developed mesopore by the aid of ferrocene, Carbon, 37, 4, pp. 663-667, (1999)
  • [9] Li Y.-Q., Li K.-X., Sun G.-H., Et al., Synthesis and characterization of activated carbon with a highmesoporosity, New Carbon Materials, 26, 2, pp. 130-136, (2011)
  • [10] Zhu Z.L., Li A.M., Yan L., Et al., Preparation ofmesoporous spherical activated carbons with large specific surface area from ion-exchange resin having various metals, Advanced Materials Research, 239, pp. 699-702, (2011)
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