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
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