期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 25, 页码 7391-7398出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta10787f
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资金
- National Natural Science Foundation of China [21171045, 21101046]
- Natural Science Foundation of Heilongjiang Province of China [ZD201214]
- Program for Scientific and Technological Innovation team Construction in Universities of Heilongjiang province [2011TD010]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20102329110002]
- Foundation of Harbin Educational Committee [12521164]
The mesoporous carbon fibers, of about 400 to 900 nm in diameter, have been synthesized by an electrospinning method with PF resin and PVP as carbon sources and triblock copolymer Pluronic P123 and tetraethyl orthosilicate (TEOS) as mesoporous templates. All materials have large surface areas (1215-2092 m(2) g(-1)), high pore volumes (0.66-1.37 cm(3) g(-1)), and mesoporous structure (with pore sizes of 2.31-2.64, 3.79-3.86, and 5.68-5.70 nm). The adsorption capability of four dyes, methylthionine chloride, methyl orange, rhodamine B, and congo red have been investigated. All the adsorption isotherms fit the typical Langmuir adsorption model well. The mesoporous carbon fibers show high adsorption capacity for these bulky dye molecules. The adsorption amount is mainly determined by the surface area, pore size and the structure/size matching between adsorbent and adsorbate. With the highest BET surface area, C-3.5 (with 3.5 g TEOS) exhibits the highest adsorption amount (1044 mg g(-1)).
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