Development of iron oxide nanoparticles using alginate hydrogel template for chromium (VI) ions removal

被引：10
|
作者：
Omer, A. M. [1 ]
Tamer, T. M. [1 ]
Abou-Taleb, W. M. [2 ]
Roston, G. D. [3 ]
Shehata, E. F. [2 ]
Hafez, A. M. [2 ]
Ghonim, R. E. [1 ]
Eldin, M. S. Mohy [1 ]
机构：
[1] City Sci Res & Technol Applicat SRTA City, Adv Technol & New Mat Res Inst, Polymer Mat Res Dept, Alexandria 21934, Egypt
[2] Alexandria Univ, Fac Educ, Phys Dept, Alexandria, Egypt
[3] Alexandria Univ, Fac Sci, Phys Dept, Alexandria, Egypt
来源：
DESALINATION AND WATER TREATMENT | 2020年 / 175卷
关键词：
Iron oxide nanoparticles; Alginate template; Chromium (VI) removal; HEAVY-METAL REMOVAL; IN-SITU SYNTHESIS; AQUEOUS-SOLUTION; ACTIVATED CARBON; WASTE-WATER; CATIONIC SURFACTANT; ADSORPTION-KINETICS; EFFICIENT REMOVAL; CR VI; MAGNETITE;
D O I：
10.5004/dwt.2020.24916
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Iron oxide nanoparticles (IONPs) were developed by alginate hydrogel template for chromium (VI) ions separation. The IONPs were characterized using Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy, X-ray diffraction and magnetic properties analysis. The separation efficiency of the IONPs for Cr(VI) ions investigated under initial Cr(VI) ions concentration, pH, adsorbent dosage, contact time and temperature. Furthermore, the adsorption process data were tested using different kinetic models. The isotherm nature was examined using Freundlich, Langmuir and Temkin models. Besides, the adsorption controlling step was determined using inter-particles and D-W diffusion models. The thermodynamic nature of the process was extracted using Van't Hoff plot.
引用
收藏
页码：229 / 243
页数：15
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