High temperature ammonia treatment of activated carbon for enhancement of CO2 adsorption

被引：293

作者：

Przepiórski, J ^{[1
]}

Skrodzewicz, M ^{[1
]}

Morawski, AW ^{[1
]}

机构：

[1] Tech Univ Szczecin, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland

来源：

APPLIED SURFACE SCIENCE | 2004年 / 225卷 / 1-4期

关键词：

activated carbon; surface treatment; adsorption; infrared spectroscopy; thermal analysis;

D O I：

10.1016/j.apsusc.2003.10.006

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 influence of treatment with ammonia on. adsorption properties toward CO2 was examined for commercially available CWZ-35 activated carbon. The treatment was performed for 2 h at elevated temperatures ranging from 200 to 1000 degreesC. The surface groups were determined by Fourier transform infrared (FTIR) spectroscopy of solid. Additionally FTIR measurement was done for outlet gases evolved during temperature-programmed desorption from the ammonia-treated activated carbon. FTIR spectra of solid samples confirmed the presence of N-containing groups in ammonia-treated carbon. Adsorption properties against CO2 were checked for both pristine and ammonia-treated activated carbons using thermogravimetric analysis. Activated carbon treated with ammonia demonstrated distinct enhancement in adsorption of CO2. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：235 / 242

页数：8

共 30 条

[1] The preparation of active carbons from coal by chemical and physical activation [J].

Ahmadpour, A ;

Do, DD .

CARBON, 1996, 34 (04) :471-479

[2] CARBON AS A CATALYST IN OXIDATION REACTIONS AND HYDROGEN HALIDE ELIMINATION-REACTIONS [J].

BOEHM, HP ;

MAIR, G ;

STOEHR, T ;

DERINCON, AR ;

TERECZKI, B .

FUEL, 1984, 63 (08) :1061-1063

[3] Preparation of activated carbon fibres from acrylic textile fibres [J].

Carrott, PJM ;

Nabais, JMV ;

Carrott, MMLR ;

Pajares, JA .

CARBON, 2001, 39 (10) :1543-1555

[4] Modification of the surface chemistry of activated carbons [J].

Figueiredo, JL ;

Pereira, MFR ;

Freitas, MMA ;

Orfao, JJM .

CARBON, 1999, 37 (09) :1379-1389

[5] Activated carbons from Spanish coals .2. Chemical activation [J].

IllanGomez, MJ ;

GarciaGarcia, A ;

deLecea, CSM ;

LinaresSolano, A .

ENERGY & FUELS, 1996, 10 (05) :1108-1114

[6] Carbon-supported Mo catalysts prepared by a new impregnation method using a MoO3/water slurry:: saturated loading, hydrodesulfurization activity and promotion by Co [J].

Kaluza, L ;

Zdrazil, M .

CARBON, 2001, 39 (13) :2023-2034

[7] Chemical vapor deposition of heterocyclic compounds over active carbon fiber to control its porosity and surface function [J].

Kawabuchi, Y ;

Sotowa, C ;

Kishino, M ;

Kawano, S ;

Whitehurst, DD ;

Mochida, I .

LANGMUIR, 1997, 13 (08) :2314-2317

[8] Chemical vapor deposition of some heterocyclic compounds over active carbon fiber to control its porosity [J].

Kawabuchi, Y ;

Sotowa, C ;

Kishino, M ;

Kawano, S ;

Whitehurst, DD ;

Mochida, I .

CHEMISTRY LETTERS, 1996, (11) :941-942

[9] Growth and structure of carbon nanotubes produced by thermal chemical vapor deposition [J].

Lee, CJ ;

Park, J .

CARBON, 2001, 39 (12) :1891-1896

[10]

López MCB, 2000, MICROPOR MESOPOR MAT, V34, P171

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