Abstract
Novel ammonium 12-molybdophosphate loaded mesoporous silica (A-SBA-15) materials were synthesized and used to remove Cs+ from aqueous solution. The effects of initial Cs+ concentration, contact time, pH value and temperature on Cs+ adsorption were investigated. It was found that Cs+ adsorption capacity was significantly improved by ammonium 12-molybdophosphate loading. The obtained A-SBA-15 exhibited rapid (20 min) and high Cs+ adsorption (46.8 mg/g). The adsorption process can be well fitted by Langmuir and Pseudo-second order models. The adsorption mechanism was ion exchange. Furthermore, the adsorption was spontaneous, endothermic and entropy-increasing. The results demonstrated that A-SBA-15 was a promising Cs+ adsorbent.
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Zhu, H., Zhong, X. Preparation of ammonium 12-molybdophosphate loaded mesoporous silica for adsorption of cesium ion from aqueous solution. J Radioanal Nucl Chem 332, 1901–1907 (2023). https://doi.org/10.1007/s10967-023-08860-1
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DOI: https://doi.org/10.1007/s10967-023-08860-1