Adsorption of benzene and toluene from aqueous solutions onto activated carbon and its acid and heat treated forms: Influence of surface chemistry on adsorption

被引：268

作者：

Wibowo, N. ^{[1
]}

Setyadhi, L. ^{[1
]}

Wibowo, D. ^{[1
]}

Setiawan, J. ^{[1
]}

Ismadji, S. ^{[1
]}

机构：

[1] Widya Mandala Surabaya Catholic Univ, Dept Chem Engn, Surabaya 60114, Indonesia

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 146卷 / 1-2期

关键词：

activated carbon; adsorption; surface chemistry; benzene; toluene;

D O I：

10.1016/j.jhazmat.2006.12.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The influence of surface chemistry and solution pH on the adsorption of benzene and toluene on activated carbon and its acid and heat treated forms were studied. A commercial coal-based activated carbon F-400 was chosen as carbon parent. The carbon samples were obtained by modification of F-400 by means of chemical treatment with HNO3 and thermal treatment under nitrogen flow. The treatment with nitric acid caused the introduction of a significant number of oxygenated acidic surface groups onto the carbon surface, while the heat treatment increases the basicity of carbon. The pore characteristics were not significantly changed after these modifications. The dispersive interactions are the most important factor in this adsorption process. Activated carbon with low oxygenated acidic surface groups (F-400Tox) has the best adsorption capacity. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：237 / 242

页数：6

共 24 条

[1] Use of beer bran as an adsorbent for the removal of organic compounds from wastewater [J].

Adachi, Atsuko ;

Ozaki, Hiroaki ;

Kasuga, Ikuno ;

Okano, Toshio .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2006, 54 (17) :6209-6211

[2] Ozonation of activated carbons:: Effect on the adsorption of selected phenolic compounds from aqueous solutions [J].

Alvarez, PM ;

García-Araya, JF ;

Beltrán, FJ ;

Masa, FJ ;

Medina, F .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 283 (02) :503-512

[3] Production of granular activated carbon from fruit stones and nutshells and evaluation of their physical, chemical and adsorption properties [J].

Aygün, A ;

Yenisoy-Karakas, S ;

Duman, I .

MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 66 (2-3) :189-195

[4] Adsorption of volatile organic compounds by pecan shell- and almond shell-based granular activated carbons [J].

Bansode, RR ;

Losso, JN ;

Marshall, WE ;

Rao, RM ;

Portier, RJ .

BIORESOURCE TECHNOLOGY, 2003, 90 (02) :175-184

[5] Wastewater treatment by chemically activated carbons from giant reed: Effect of the activation atmosphere on properties and adsorptive behavior [J].

Basso, MC ;

Cukierman, AL .

SEPARATION SCIENCE AND TECHNOLOGY, 2006, 41 (01) :149-165

[6] Arundo donax-based activated carbons for aqueous-phase adsorption of volatile organic compounds [J].

Basso, MC ;

Cukierman, AL .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (07) :2091-2100

[7] SOME ASPECTS OF THE SURFACE-CHEMISTRY OF CARBON-BLACKS AND OTHER CARBONS [J].

BOEHM, HP .

CARBON, 1994, 32 (05) :759-769

[8] Surface oxides on carbon and their analysis: a critical assessment [J].

Boehm, HP .

CARBON, 2002, 40 (02) :145-149

[9] Adsorption of valeric acid from aqueous solution onto activated carbons: role of surface basic sites [J].

El-Sayed, Y ;

Bandosz, TJ .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 273 (01) :64-72

[10] Adsorption of anionic and cationic dyes on activated carbons with different surface chemistries [J].

Faria, PCC ;

Orfao, JJM ;

Pereira, MFR .

WATER RESEARCH, 2004, 38 (08) :2043-2052

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