Removal of 2,4-dichlorophenol from aqueous solution by static-air-activated carbon fibers

被引：29

作者：

Wang, Jian-Ping ^{[1
]}

Chen, Yong-Zhen ^{[1
]}

Feng, Hui-Min ^{[1
]}

Zhang, Shu-Juan ^{[1
]}

Yu, Han-Qing ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 313卷 / 01期

关键词：

2,4-dichlorophenol; activated carbon fiber; adsorption; desorption;

D O I：

10.1016/j.jcis.2007.04.012

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：

Static-air-activated carbon fibers (ACFs) with lotus-root-like axially porous structure were used to adsorb 2,4-dichlorophenol (2,4-DCP) from aqueous solution. The adsorption isotherm was evaluated in the pH range 3.0-11.0. Results indicated that both Langmuir and Redlich-Peterson adsorption isotherms were appropriate for describing the adsorption characteristics of 2,4-DCP at various pH values and that lower pH values were favorable for adsorption. The adsorption of 2,4-DCP was controlled by the synergetic effects of pi-pi interaction and electrostatic attraction, and the former was dominant. Breakthrough curve results showed that the 2,4-DCP removal efficiency increased with an increase in the empty-bed contact time (EBCT). An EBCT of 0.660 min was sufficient for the adsorption of 2,4-DCP onto ACF, indicating a high adsorption rate. Desorption experiment results revealed that the ACF saturated with 2,4-DCP could be regenerated effectively by a 0.001 M NaOH solution. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：80 / 85

页数：6

共 34 条

[1] Adsorption of bentazon and propanil from aqueous solutions at the high area activated carbon-cloth [J].

Ayranci, E ;

Hoda, N .

CHEMOSPHERE, 2004, 57 (08) :755-762

[2] Studies on removal of metribuzin, bromacil, 2,4-D and atrazine from water by adsorption on high area carbon cloth [J].

Ayranci, E ;

Hoda, N .

JOURNAL OF HAZARDOUS MATERIALS, 2004, 112 (1-2) :163-168

[3] Point of zero charge and intrinsic equilibrium constants of activated carbon cloth [J].

Babic, BM ;

Milonjic, SK ;

Polovina, MJ ;

Kaludierovic, BV .

CARBON, 1999, 37 (03) :477-481

[4] COMPARISON OF METHODS TO ASSESS SURFACE ACIDIC GROUPS ON ACTIVATED CARBONS [J].

BANDOSZ, TJ ;

JAGIELLO, J ;

SCHWARZ, JA .

ANALYTICAL CHEMISTRY, 1992, 64 (08) :891-895

[5] Adsorption of 4-chlorophenol from aqueous solutions by xad-4 resin: Isotherm, kinetic, and thermodynamic analysis [J].

Bilgili, M. Sinan .

JOURNAL OF HAZARDOUS MATERIALS, 2006, 137 (01) :157-164

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

BOEHM, HP .

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

[7] SELECTIVE NITRATE ADSORPTIVITY OF ACTIVATED CARBON-FIBERS [J].

CAMARA, S ;

WANG, Z ;

OZEKI, S ;

KANEKO, K .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1994, 162 (02) :520-522

[8] Surface modification of a granular activated carbon by citric acid for enhancement of copper adsorption [J].

Chen, JP ;

Wu, SN ;

Chong, KH .

CARBON, 2003, 41 (10) :1979-1986

[9] Adsorption equilibrium and breakthrough analysis for NO adsorption on activated carbons at low temperatures [J].

Claudino, A ;

Soares, JL ;

Moreira, RFPM ;

José, HJ .

CARBON, 2004, 42 (8-9) :1483-1490

[10] Adsorption of pentachlorophenol from aqueous solution onto activated carbon fiber [J].

Diaz-Flores, PE ;

Leyva-Ramos, R ;

Guerrero-Coronado, RM ;

Mendoza-Barron, J .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (01) :330-336

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