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  • 文献标题:   Study of kinetic, thermodynamic, and isotherm of Sr adsorption from aqueous solutions on graphene oxide (GO) and (aminomethyl)phosphonic acid-graphene oxide (AMPA-GO)
  • 文献类型:   Article
  • 作　　者:   ALAMDARLO FV, SOLOOKINEJAD G, ZAHAKIFAR F, JALAL MR, JABBARI M
  • 作者关键词:   functionalized graphene oxide, aminomethyl phosphonic acid, aqueous solution, strontium, adsorption capacity
  • 出版物名称:   JOURNAL OF RADIOANALYTICAL NUCLEAR CHEMISTRY
  • ISSN:   0236-5731 EI 1588-2780
  • 通讯作者地址:  
  • 被引频次:   10
  • DOI:   10.1007/s10967-021-07845-2 EA JUN 2021
  • 出版年:   2021

▎ 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.