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<p>A Ti-based metal–organic framework/reduced graphene oxide composite was prepared and utilized as an adsorbent for the removal of cesium ions. The effects of the adsorbent dosage, pH, contact time, and initial cesium concentration were investigated using the response surface methodology. Due to the analysis of variance, pH was the most effective factor influencing cesium removal. According to the results, the optimum conditions were pH 5.5.5 ± 0.1, an initial cesium concentration of 300&#xa0;mg&#xa0;L<sup>−1</sup>, an adsorbent dosage of 0.05 ± 0.001&#xa0;g, and a sorption duration of 90&#xa0;min. The adsorption of cesium on the adsorbent was better represented by the Sips model.</p>

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Enhancing cesium ion removal efficiency through Ti-based MOF/reduced graphene oxide composites: a central composite design approach

  • 期刊论文

  • 发表日期：

    2026年2月3日

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  • Sodeh Sadjadi,
  • Sareh Ammari Allahyari,
  • Ali Yadollahi,
  • Reza Saberi

摘要

A Ti-based metal–organic framework/reduced graphene oxide composite was prepared and utilized as an adsorbent for the removal of cesium ions. The effects of the adsorbent dosage, pH, contact time, and initial cesium concentration were investigated using the response surface methodology. Due to the analysis of variance, pH was the most effective factor influencing cesium removal. According to the results, the optimum conditions were pH 5.5.5 ± 0.1, an initial cesium concentration of 300 mg L−1, an adsorbent dosage of 0.05 ± 0.001 g, and a sorption duration of 90 min. The adsorption of cesium on the adsorbent was better represented by the Sips model.