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.
引用
收藏
页码:1842 / 1848
页数:6
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