Removal of Cd(II) from water using zero valent iron/copper functionalized spent tea

被引：8
作者：
Malook, Khan [1 ]
Khan, Hamayun [2 ]
机构：
[1] Univ Peshawar, Centralized Resource Lab, Peshawar 25120, Pakistan
[2] Islamia Coll Peshawar, Dept Chem, Peshawar 25120, Pakistan
来源：
WATER SCIENCE AND TECHNOLOGY | 2020年 / 82卷 / 11期
关键词：
adsorption capacity; FTIR; monolayer; separation factor; STP-ZVI; Cu; AQUEOUS-SOLUTION; TRACE DETERMINATION; METAL-IONS; BIOSORPTION; COPPER; CADMIUM; IRON; NANOCOMPOSITE; NANOPARTICLES; EQUILIBRIUM;
D O I：
10.2166/wst.2020.527
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Zero valent Fe/Cu functionalized spent tea adsorbent was prepared for the decontamination of Cd(II) contaminated water. The synthesized material was characterized for structural and morphological characteristics using various analytical techniques. The material was used as adsorbent for the adsorption of Cd(II) from aqueous solutions in batch study experiments. The effect of initial pH, adsorbent dosage, contact time and adsorbate concentration was investigated. The obtained data well followed the Langmuir adsorption isotherm model and pseudo-second order rate model with maximum adsorption capacity of 89.686 mg center dot g(-1). Based on Langmuir separation factor (R), having a value of 0.706-0.194, the adsorption process was confirmed to be favorable. The adsorbent was used in the form of a column for the sorption of Cd(II) from a running solution with satisfactory results. The spent material was regenerated and reutilized with reduction of adsorption capacity by 1.48% only. Overall, the current adsorbent can be efficiently utilized for the removal of aqueous Cd(II).
引用
收藏
页码：2552 / 2561
页数：10
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