Competitive uptake of Cs+, Ba2+, and Zn2+ ions from binary aqueous mixtures by zeolite-13X

The preferential exchange uptake of the cations Cs⁺, Ba²⁺ and Zn²⁺ from pure solutions by zeolite-13X follows the order Q Cs⁺]>Q Ba²⁺]>Q Zn²⁺], while in case of binary mixtures the order is Q Ba²⁺(Zn²⁺)]>Q Ba²⁺(Cs⁺)]>Q Cs⁺(Zn²⁺)]>Q Cs⁺(Ba²⁺)]>Q Zn²⁺(Cs⁺)]>Q Zn²⁺(Ba²⁺)]. Ba²⁺ uptake from mixtures shows the least suppression effect.

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Cs⁺, Ba⁺² Zn⁺² -13 QCs⁺]>QBa⁺²]>QZn⁺²] QBa⁺²(mix Zn⁺²)]>QBa⁺²(mix Cs⁺)]>QCs⁺(mix Zn⁺²)]>QCs⁺(mix Ba⁺²)]>QZn⁺²(mix Cs⁺)]>QZn⁺²(mix Ba⁺²)]. Ba⁺² .