Synthesis of mesoporous carbon fibers with a high adsorption capacity for bulky dye molecules

被引：69

作者：

Dong, Yan ^{[1
]}

Lin, Huiming ^{[1
]}

Jin, Qumei ^{[1
]}

Li, Lei ^{[1
]}

Wang, Dan ^{[1
]}

Zhou, Dan ^{[1
]}

Qu, Fengyu ^{[1
]}

机构：

[1] Harbin Normal Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Photon & Elect Bandgap Mat, Harbin 150025, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 25期

基金：

中国国家自然科学基金; 黑龙江省自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

ACTIVATED CARBON; AQUEOUS-SOLUTION; NANOFIBERS; SUPERCAPACITORS; COMPOSITES; NANOTUBES; ADSORBENT; CATALYST; PHENOL; ROUTE;

D O I：

10.1039/c3ta10787f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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)).

引用

页码：7391 / 7398

页数：8

共 26 条

[1] Polyaniline-Coated Electro-Etched Carbon Fiber Cloth Electrodes for Supercapacitors [J].