Co-Ion Effect on Cr3+ Sorption by Amberlyst-15(H+)
作者： Syed Mustafa , Khizar Hussain Shah , Abdul Naeem , Muhammad Waseem , Tauqeer Ahmad
DOI: 10.1007/S11270-010-0567-X
关键词:
摘要: Cr3+ sorption on strong acid exchanger Amberlyst-15(H+) is studied as a function of time and temperature using CrCl3.6H2O [Cr4(SO4)5(OH)2] solutions. The rate found to be governed by mixed diffusion for both the solutions faster Cl1− solution than SO4 2−. exchange capacities are higher system From constant values, energies activation calculated well-known Arrhenius equation. Equilibrium data explained with help Langmuir parameters also from chloride Various thermodynamic (ΔHo, ΔSo, ΔGo) resin calculated. ΔGo values negative while ΔHo ΔSo positive Cr3+/Cl1− Cr3+/SO4 2− systems. It suggested that in case solutions, metal exchanged Cr3+, exchanging specie CrSO4 +.
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