Evaluation of wheat straw and barley straw carbon for Cr(VI) adsorption

被引：35
作者：
Chand, Rumi [1 ]
Watari, Takanori [1 ]
Inoue, Katsutoshi [1 ]
Torikai, Toshio [1 ]
Yada, Mitsunori [1 ]
机构：
[1] Saga Univ, Dept Appl Chem, Saga 8408502, Japan
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2009年 / 65卷 / 03期
关键词：
Wheat straw; Barley straw; Carbonization; Adsorption; Chromium; HEXAVALENT CHROMIUM; ACTIVATED CARBONS; AQUEOUS-SOLUTION; REMOVAL; BEHAVIOR; IONS;
D O I：
10.1016/j.seppur.2008.11.002
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The present study deals with the adsorption of Cr(VI) on carbonized wheat straw (CWS) and barley straw (CBS). Carbon materials, prepared at different carbonization temperatures, were investigated for the adsorptive removal of Cr(VI). These carbonized materials prepared from agro-waste were found to have a high affinity for chromium as represented by very high adsorption capacities of 1.67 and 1.68 mol/kg for wheat and barley straws, respectively, carbonized at 800 degrees C at pH 2. Equilibrium was reached within 1 h of contact time which suggests high efficiency of the carbonized materials for Cr(VI) removal. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：331 / 336
页数：6
相关论文
共 19 条
[1]   Removal of chromium ions from aqueous solutions by polymer-enhanced ultrafiltration [J].
Aroua, Mohamed Kheireddine ;
Zuki, Fathiah Mohamed ;
Sulaiman, Nik Meriam .
JOURNAL OF HAZARDOUS MATERIALS, 2007, 147 (03) :752-758
[2]   Removal of Cr(VI) from aqueous solution using activated cow dung carbon [J].
Das, DD ;
Mahapatra, R ;
Pradhan, J ;
Das, SN ;
Thakur, RS .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2000, 232 (02) :235-240
[3]   Adsorption of chrorniurn(VI) on low cost adsorbents derived from agricultural waste material: A comparative study [J].
Dubey, Shashi Prabha ;
Gopal, Krishna .
JOURNAL OF HAZARDOUS MATERIALS, 2007, 145 (03) :465-470
[4]  
GILCREAS FW, 1965, STANDARD METHODS EXA
[5]   Pb(II) and Cr(VI) adsorption from aqueous solution on activated carbons obtained from sugar cane husk and sawdust [J].
Giraldo-Gutierrez, Liliana ;
Moreno-Pirajan, Juan Carlos .
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2008, 81 (02) :278-284
[6]  
Goswami S, 2005, WATER SA, V31, P597
[7]   Adsorption of Cr(VI) on micro- and mesoporous rice husk-based active carbon [J].
Guo, YP ;
Qi, JR ;
Yang, SF ;
Yu, KF ;
Wang, ZC ;
Xu, HD .
MATERIALS CHEMISTRY AND PHYSICS, 2003, 78 (01) :132-137
[8]   Chromium adsorption on high-performance activated carbons from aqueous solution [J].
Hu, ZH ;
Lei, L ;
Li, YJ ;
Ni, YM .
SEPARATION AND PURIFICATION TECHNOLOGY, 2003, 31 (01) :13-18
[9]   Adsorption behavior of Cr(VI) on organic-modified rectorite [J].
Huang, Yun ;
Ma, Xiaoyan ;
Liang, Guozheng ;
Yan, Yongxia ;
Wang, Shuhui .
CHEMICAL ENGINEERING JOURNAL, 2008, 138 (1-3) :187-193
[10]   Adsorption of heavy metal ions from aqueous solutions by activated carbon prepared from apricot stone [J].
Kobya, M ;
Demirbas, E ;
Senturk, E ;
Ince, M .
BIORESOURCE TECHNOLOGY, 2005, 96 (13) :1518-1521
12