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

CAI Li-feng; CHEN Lu-yi; WANG Chun-li; LIANG Ye-ru; FU Ruo-wen; WU Ding-cai

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Article Navigation > New Carbon Mater. > 2015 > 30(6): 560-565

CAI Li-feng, CHEN Lu-yi, WANG Chun-li, LIANG Ye-ru, FU Ruo-wen, WU Ding-cai. Liquid-phase methylene blue adsorption of a novel hierarchical porous carbon aerogel. New Carbon Mater., 2015, 30(6): 560-565.

Citation:

CAI Li-feng, CHEN Lu-yi, WANG Chun-li, LIANG Ye-ru, FU Ruo-wen, WU Ding-cai. Liquid-phase methylene blue adsorption of a novel hierarchical porous carbon aerogel. New Carbon Mater., 2015, 30(6): 560-565.

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

1.
College of Environmental and Biological Engineering, Putian University, Putian 351100, China;
2.
Materials Science Institute, PCFM Laboratory, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China

Funds: National Natural Science Foundation of China (51422307, 51372280, 51173213); Guangdong Natural Science Funds for Distinguished Young Scholar (S2013050014408); China Postdoctoral Science Foundation (2015T80932); Program for New Century Excellent Talents in University (NCET-12-0572); Program for Pearl River New Star of Science and Technology in Guangzhou (2013J2200015); Tip-top Scientific and Technical Innovative Youth Talents of Guangdong Special Support Program (2014TQ01C337); National Key Basic Research Program of China (2014CB932402); Open project of Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education (PCFM-2015-01); Science and technology project of the education department of Fujian province (JK2014043).

Received Date: 2015-11-02
Accepted Date: 2016-01-05
Rev Recd Date: 2015-12-02
Publish Date: 2015-12-28

Abstract

Abstract

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.
- Carbon aerogels,
- Hierarchical porous structure,
- Methylene blue,
- Adsorption

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References(21)

References

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