ADSORPTION OF METHYLENE BLUE ONTO ACTIVATED CARBON PREPARED FROM Lupins albus

被引：4
|
作者：
Bagci, Safiye [1 ]
Ceyhan, Ayhan Abdullah [1 ]
机构：
[1] Selcuk Univ, Dept Chem Engn, Konya, Turkey
来源：
CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY | 2016年 / 22卷 / 02期
关键词：
activated carbon; adsorption; Lupinus albus; methylene blue; zinc chloride; CHEMICAL ACTIVATION; EFFICIENT REMOVAL; AQUEOUS-SOLUTIONS; EQUILIBRIUM; KINETICS; CR(VI);
D O I：
10.2298/CICEQ150522030B
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The adsorption of methylene blue (MB) from synthetic aqueous solutions in batch experiments using Lupinus albus-activated carbon (LAAC) by chemical activation with zinc chloride was investigated. Prior to adsorption experiments, surface/physical properties of LAAC were determined using scanning electron microscopy, Fourier transform infrared spectroscopy and nitrogen adsorption isotherm. In the adsorption experiments, effects of adsorption time, solution pH, MB concentration and amount of LAAC were investigated. The isotherm and kinetic parameters were used to describe the experimental data. The BET surface area was 1254 m(2)/g while its total pore volume was found to be 0.484 cm(3)/g. Maximum adsorption capacity occurred at solution pH value 10 and was recorded as 109.89 mg/g. Adsorption data were modeled using Langmuir, Freundlich and Temkin adsorption isotherms. Langmuir isotherm and pseudo second-order models fit to the process and reaction kinetics correspondingly.
引用
收藏
页码：155 / 165
页数：11
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