Activated carbons from waste biomass by sulfuric acid activation and their use on methylene blue adsorption

被引：435

作者：

Karagoez, Selhan ^{[1
]}

Tay, Turgay ^{[2
]}

Ucar, Suat ^{[1
]}

Erdem, Murat ^{[2
]}

机构：

[1] Dokuz Eylul Univ, Chem Program, Izmir Vocat Sch, TR-35160 Izmir, Turkey

[2] Anadolu Univ, Fac Sci, Dept Chem, TR-26470 Eskisehir, Turkey

来源：

BIORESOURCE TECHNOLOGY | 2008年 / 99卷 / 14期

关键词：

waste biomass; activated carbon; adsorption; methylene blue;

D O I：

10.1016/j.biortech.2007.12.019

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Preparation of the activated carbons from sunflower oil cake by sulphuric acid activation with different impregnation ratios was carried out. Laboratory prepared activated carbons were used as adsorbents for the removal of methylene blue (MB) from aqueous solutions. Liquid-phase adsorption experiments were conducted and the maximum adsorption capacity of each activated carbon was determined. The effects of various process parameters i.e., temperature, pH, initial methylene blue concentration, contact time on the adsorption capacity of each activated carbon were investigated. The kinetic models for MB adsorption onto the activated carbons were studied. Langmuir isotherm showed better fit than Freundlich isotherm for all activated carbon samples. The rates of adsorption were found to conform to the pseudo-second-order kinetics with good correlation. The separation factor (R(L)) revealed the favorable nature of the isotherm of the MB activated carbon system. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：6214 / 6222

页数：9

共 37 条

[1] ADAMSON AW, 1960, PHYS CHEM SURFACE
[2] The adsorption of chromium (VI) from industrial wastewater by acid and base-activated lignocellulosic residues
Alvarez, Patricia
Blanco, Clara
Granda, Marcos
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 144 (1-2) : 400 - 405
[3] Capacity of activated carbon derived from pistachio shells by H3PO4 in the removal of dyes and phenolics
Attia, AA
Girgis, BS
Khedr, SA
[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2003, 78 (06) : 611 - 619
[4] Production of granular activated carbon from fruit stones and nutshells and evaluation of their physical, chemical and adsorption properties
Aygün, A
Yenisoy-Karakas, S
Duman, I
[J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 66 (2-3) : 189 - 195
[5] Azadirachta indica leaf powder as an effective biosorbent for dyes:: a case study with aqueous Congo Red solutions
Bhattacharyya, KG
Sharma, A
[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2004, 71 (03) : 217 - 229
[6] Boehm H.P., 1966, CHEM IDENTIFICATION, V16,, P179, DOI [10.1016/S0360-0564(08)60354-5, DOI 10.1016/S0360-0564(08)60354-5]
[7] Activated carbons from cork waste by chemical activation with K2CO3.: Application to adsorption of natural gas components
Carvalho, AP
Gomes, M
Mestre, AS
Pires, J
de Carvalho, MB
[J]. CARBON, 2004, 42 (03) : 672 - 674
[8] Surface modification of a granular activated carbon by citric acid for enhancement of copper adsorption
Chen, JP
Wu, SN
Chong, KH
[J]. CARBON, 2003, 41 (10) : 1979 - 1986
[9] CRANK G, 1933, MATH DIFFUSION
[10] Comparison on pore development of activated carbon produced from palm shell and coconut shell
Daud, WMAW
Ali, WSW
[J]. BIORESOURCE TECHNOLOGY, 2004, 93 (01) : 63 - 69

← 1 2 3 4 →