Study of kinetic, thermodynamic, and isotherm of Sr adsorption from aqueous solutions on graphene oxide (GO) and (aminomethyl)phosphonic acid-graphene oxide (AMPA-GO)

被引：23
作者：
Alamdarlo, Farzad Vaziri [1 ]
Solookinejad, Ghahraman [1 ]
Zahakifar, Fazel [2 ]
Jalal, Masoud Rezvani [3 ]
Jabbari, Masoud [4 ]
机构：
[1] Islamic Azad Univ, Dept Phys, Marvdasht Branch, Marvdasht, Iran
[2] AEOI, Nucl Fuel Cycle Res Sch, Nucl Sci & Technol Res Inst, POB 11365-8486, Tehran, Iran
[3] Malayer Univ, Dept Phys, Malayer, Iran
[4] Islamic Azad Univ, Dept Elect Engn, Marvdasht Branch, Marvdasht, Iran
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2021年 / 329卷 / 02期
关键词：
Functionalized graphene oxide; (Aminomethyl)phosphonic acid; Aqueous solutions; Strontium; Adsorption capacity; SOLVENT-EXTRACTION; LIQUID-MEMBRANE; HYDROGEN DICARBOLLYLCOBALTATE; STRONTIUM ADSORPTION; FUNCTIONAL-GROUPS; ION-EXCHANGE; WASTE-WATER; CROWN-ETHER; METAL-IONS; REMOVAL;
D O I：
10.1007/s10967-021-07845-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this work, graphene oxide (GO) and (aminomethyl)phosphonic acid-Graphene oxide (AMPA-GO) adsorbents were prepared by the modified Hummers method. The effect of several parameters such as contact time, pH, adsorbent dose, initial concentration, and temperature on adsorption of strontium was investigated. The results showed that experimental data was fitted well by Pseudo-second-order kinetic and Langmuir isotherm models. The maximum adsorption capacity of Sr ions with GO and AMPA-GO adsorbent was 122.36 and 142.39 mg g(-1) at a pH of 2.0 and a temperature of 45 degrees C, respectively.
引用
收藏
页码：1033 / 1043
页数：11
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