Liquid-phase methylene blue adsorption of a novel hierarchical porous carbon aerogel

被引：0
|
作者：
Cai, Li-Feng [1 ,2 ]
Chen, Lu-Yi [2 ]
Wang, Chun-Li [1 ]
Liang, Ye-Ru [2 ]
Fu, Ruo-Wen [2 ]
Wu, Ding-Cai [2 ]
机构：
[1] College of Environmental and Biological Engineering, Putian University, Putian,351100, China
[2] Materials Science Institute, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou,510275, China
来源：
Xinxing Tan Cailiao/New Carbon Materials | 2015年 / 30卷 / 06期
关键词：
Aerogels - Aromatic compounds - Carbon - Liquid films - Porous materials;
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中图分类号：
学科分类号：
摘要：
A novel hierarchical porous carbon aerogel (HPCA) was fabricated and its nanostructure was investigated by SEM and N2 adsorption. The methylene blue (MB) adsorption properties of the HPCA in water were studied. It is found that the HPCA has a hierarchical micro-, meso- and macropore structure. Its BET and micropore surface areas are 512 and 359 m2·g-1, respectively. The MB adsorption capacity increases with adsorption time, speed of stirring, temperature and pH value, and the MB removal efficiency can reach 99.8% under optimized conditions. The adsorption kinetics can be well described by a pseudo-second-order equation and the adsorption is controlled by liquid film diffusion in the initial stages and intraparticle diffusion later. © 2015, Editorial Board of New Carbon Materials. All right reserved.
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页码：560 / 565
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