Removal of methylene blue dye from aqueous solution by activated carbon prepared from cashew nut shell as a new low-cost adsorbent

被引：150

作者：

Kumar, Ponnusamy Senthil ^{[1
]}

Ramalingam, Subramaniam ^{[2
]}

Sathishkumar, Kannaiyan ^{[1
]}

机构：

[1] SSN Coll Engn, Dept Chem Engn, Madras 603110, Tamil Nadu, India

[2] Tulane Univ, Chem & Biomol Engn Dept, New Orleans, LA 70118 USA

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 28卷 / 01期

关键词：

Cashew Nut Shell; Activated Carbon; Methylene Blue; Adsorption; Isotherms; Kinetics; BASIC DYE; SURFACE-AREA; ADSORPTION; EQUILIBRIUM; KINETICS; POROSITY; SORPTION; STONES; BATCH; WATER;

D O I：

10.1007/s11814-010-0342-0

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Methylene blue dye was adsorbed on an adsorbent prepared from cashew nut shell. A batch adsorption study was carried out with variable adsorbent amount, initial dye concentration, contact time and pH. Studies showed that the pH of aqueous solutions affected dye removal as a result of removal efficiency increased with increasing solution pH. The experimental data were analyzed by the Langmuir, Freundlich, Redlich-Peterson, Koble-Corrigan, Toth, Temkin, Sips and Dubinin-Radushkevich models of adsorption using MATLAB 7.1. The experimental data yielded excellent fits within the following isotherm order: Redlich-Peterson>Toth>Sips>Koble-Corrigan>Langmuir>Temkin>Dubinin-Radushkevich>Freundlich, based on its correlation coefficient values. Three simplified kinetic models including a pseudofirst-order, pseudo-second-order and intraparticle diffusion equations were selected to follow the adsorption process. It was shown that the adsorption of methylene blue could be described by the pseudo-second-order equation. The results indicate that cashew nut shell activated carbon could be employed as a low cost alternative to commercial activated carbon in the removal of dyes from wastewater.

引用

页码：149 / 155

页数：7

共 44 条

[21] Use of activated carbons prepared from sawdust and rice-husk for adsorption of acid dyes: a case study of Acid Yellow 36 [J].

Malik, PK .

DYES AND PIGMENTS, 2003, 56 (03) :239-249

[22] Adsorption of basic dyes on granular acivated carbon and natural zeolite [J].

Meshko, V ;

Markovska, L ;

Mincheva, M ;

Rodrigues, AE .

WATER RESEARCH, 2001, 35 (14) :3357-3366

[23] Removal of Congo Red from water by adsorption onto activated carbon prepared from coir pith, an agricultural solid waste [J].

Namasivayam, C ;

Kavitha, D .

DYES AND PIGMENTS, 2002, 54 (01) :47-58

[24] Biosorption of Acid Blue 15 using fresh water macroalga Azolla filiculoides:: Batch and column studies [J].

Padmesh, TVN ;

Vijayaraghavan, K ;

Sekaran, G ;

Velan, M .

DYES AND PIGMENTS, 2006, 71 (02) :77-82

[25] THE DEGRADATION OF DYESTUFFS .2. BEHAVIOR OF DYESTUFFS IN AEROBIC BIODEGRADATION TESTS [J].

PAGGA, U ;

BROWN, D .

CHEMOSPHERE, 1986, 15 (04) :479-491

[26] Carbon from Cassava peel, an agricultural waste, as an adsorbent in the removal of dyes and metal ions from aqueous solution [J].

Rajeshwarisivaraj ;

Sivakumar, S ;

Senthilkumar, P ;

Subburam, V .

BIORESOURCE TECHNOLOGY, 2001, 80 (03) :233-235

[27] A USEFUL ADSORPTION ISOTHERM [J].

REDLICH, O ;

PETERSON, DL .

JOURNAL OF PHYSICAL CHEMISTRY, 1959, 63 (06) :1024-1024

[28]

Reife A., 1993, Othmer encyclopedia of chemical technology, V8, P753

[29]

Sanghi R, 2002, COLOR TECHNOL, V118, P256

[30] Adsorption of methylene blue onto jute fiber carbon: kinetics and equilibrium studies [J].

Senthilkumaar, S ;

Varadarajan, PR ;

Porkodi, K ;

Subbhuraam, C .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2005, 284 (01) :78-82

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