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To overcome the shortage of freshwater resources and provide clean water for worldwide population, along with the elimination or reduction of water contamination, we have synthesized the mixed-lanthanide metal–organic framework (MOF) with the formula m(x)M(1–x)BTC­(DMF) {m = Ce­(III), M = La­(III), x = 0.8} via the solvothermal technique to separate Nd ions from water. The cooperative interaction between La­(III) and Ce­(III) has intensified the nonlinear properties of Ce0.8La0.2BTC­(DMF) resulting in the high interaction between fabricated MOF and Nd ions. The as-prepared MOF was considered for various structural analyses and experimental conditions. Significantly, over 80% of Nd ions have been removed within 5 min and the maximum Nd uptake capacity (q max) determined by the Langmuir isotherm was 142.8 mg/g.

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