Adsorption Kinetics of Chromium (VI) from Aqueous Solution Using an Anion Exchange Resin

被引：20
|
作者：
Marcu, Cristina [1 ]
Varodi, Codruta [1 ]
Balla, Ancuta [1 ]
机构：
[1] Natl Inst Res & Dev Isotop & Mol Technol, 67-103 Donat Str, Cluj Napoca 400293, Napoca, Romania
来源：
ANALYTICAL LETTERS | 2021年 / 54卷 / 1-2期
关键词：
Adsorption; anionic resin; chromium (VI); spectrophotometry; water pollution; ION SORPTION; REMOVAL; CR(VI); WATER; REDUCTION;
D O I：
10.1080/00032719.2020.1731523
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In the present study, batch experiments were performed to remove chromium (VI) from aqueous solutions using an anion exchange resin. In order to investigate the kinetic mechanism which controls the chromium (VI) adsorption, four kinetic models were used: pseudo-first order, pseudo-second order, the Elovich equation and the intraparticle diffusion model. In reaction with 1,5 diphenylcarbazide, chromium (VI) forms a complex, which was analyzed at 540 nm using a spectrophotometer after 7 min. The Cr (VI) adsorption process was well described by the pseudo-second order kinetic model for 0.1 to 0.3 g/L Cr (VI).
引用
收藏
页码：140 / 149
页数：10
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