Preparation of activated carbons previously treated with sulfuric acid -: A study of their adsorption capacity in solution

被引：22

作者：

Cuerda-Correa, E. M. ^{[1
]}

Diaz-Diez, M. A.

Macias-Garcia, A.

Ganan-Gomez, J.

机构：

[1] Univ Extremadura, Fac Ciencias, Dept Quim Inorgan, E-06071 Badajoz, Spain

[2] Univ Extremadura, Area Ciencia Mat & Ingn Metalurgia, Escuela Ingn Ind, E-06071 Badajoz, Spain

来源：

APPLIED SURFACE SCIENCE | 2006年 / 252卷 / 17期

关键词：

activated carbon; liquid phase adsorption;

D O I：

10.1016/j.apsusc.2005.11.013

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：

In the present work, cedar wood has been used as raw material for the preparation of activated carbons. The influence of a previous treatment with sulfuric acid on the textural properties of the carbonized and activated samples has been investigated. Finally, the adsorption capacity of para-nitrophenol in aqueous solution has been studied and the corresponding adsorption isotherms have been fitted to Langmuir's equation. The experimental results indicate that the previous dehydration of the raw material with sulfuric acid gives rise to an improvement in the porous texture and adsorption capacity of the activated carbons. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：6042 / 6045

页数：4

共 23 条

[1] Porous texture of activated carbons prepared by phosphoric acid activation of woods [J].

Díaz-Díez, MA ;

Gómez-Serrano, V ;

González, CF ;

Cuerda-Correa, EM ;

Macías-García, A .

APPLIED SURFACE SCIENCE, 2004, 238 (1-4) :309-313

[2] The production of chemically-activated carbon [J].

Evans, MJB ;

Halliop, E ;

McDonald, JAF .

CARBON, 1999, 37 (02) :269-274

[3] Preparation of activated carbons from bituminous coal pitches [J].

Gañan, J ;

González-García, CM ;

González, JF ;

Sabio, E ;

Macías-García, A ;

Díaz-Díez, MA .

APPLIED SURFACE SCIENCE, 2004, 238 (1-4) :347-354

[4]

GARCIA AM, IN PRESS J ADV MAT

[5] GENERAL TREATMENT AND CLASSIFICATION OF SOLUTE ADSORPTION-ISOTHERM .1. THEORETICAL [J].

GILES, CH ;

SMITH, D ;

HUITSON, A .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1974, 47 (03) :755-765

[6] Adsorption of mercury, cadmium and lead from aqueous solution on heat-treated and sulphurized activated carbon [J].

Gomez-Serrano, V ;

Macias-Garcia, A ;

Espinosa-Mansilla, A ;

Valenzuela-Calahorro, C .

WATER RESEARCH, 1998, 32 (01) :1-4

[7] Textural and chemical characterisations of activated carbon prepared from oil-palm stone with H2SO4 and KOH impregnation [J].

Guo, J ;

Lua, AC .

MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 32 (1-2) :111-117

[8] Production of activated carbon from a new precursor molasses by activation with sulphuric acid [J].

Legrouri, K ;

Khouya, E ;

Ezzine, M ;

Hannache, H ;

Denoyel, R ;

Pallier, R ;

Naslain, R .

JOURNAL OF HAZARDOUS MATERIALS, 2005, 118 (1-3) :259-263

[9] Adsorption of Pb2+ in aqueous solution by SO2-treated activated carbon [J].

Macías-García, A ;

Valenzuela-Calahorro, C ;

Espinosa-Mansilla, A ;

Bernalte-García, A ;

Gómez-Serrano, V .

CARBON, 2004, 42 (8-9) :1755-1764

[10] Preparation of active carbons from a commercial holm-oak charcoal:: study of micro- and meso-porosity [J].

Macias-García, A ;

García, MJB ;

Díaz-Díez, MA ;

Jiménez, AH .

WOOD SCIENCE AND TECHNOLOGY, 2004, 37 (05) :385-394

← 1 2 3 →