Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 297, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2019.111901
Keywords
Adsorption; ReO4-; Coated solvent impregnated resins; Alamine 336
Funding
- Fundamental Research Funds for the Central Universities of Central South University [2019zzts243]
- National Natural Science Foundation of China [51604303]
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A comprehensive study on the adsorption of ReO4- by coated impregnated resins containing Alamine 336 (336-CSIRs) from synthetic sulfuric acid solutions was conducted. The effects of sulfuric acidity, adsorption kinetics with varying initial concentrations of ReO4-, and the adsorption equilibrium with various temperatures were investigated. Low sulfuric acidity was more conducive to the adsorption of ReO4-. The adsorption process could be described by the pseudo-second-order kinetic model with equilibrium reached within 6 h, and fit well with Langmuir equilibrium model with the saturation adsorption capacity of 120.04 mg g(-1). Excellent selective adsorption of ReO4- onto 336-CSIRs was observed with the concentration of sulfuric acid from 0.5 to 4.0 mol L-1. 336-CSIRs showed excellent stability and 99.92% of rhenium was selectively adsorbed by 336-CSIRs from industrial waste water. (C) 2019 Elsevier B.V. All rights reserved.
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