Mesoporous Na-mordenite zeolite was successfully synthesized by soft templating method in the presence of N,N-dimethylaniline and characterized using several techniques (XRD, SEM, BET, FTIR, and TG/dTG). The prepared material then… Click to show full abstract
Mesoporous Na-mordenite zeolite was successfully synthesized by soft templating method in the presence of N,N-dimethylaniline and characterized using several techniques (XRD, SEM, BET, FTIR, and TG/dTG). The prepared material then underwent ion exchange with two alkali metal cations (K+, Cs+). Intracrystalline diffusion and alkalinity of zeolites were attributed to high adsorption capacities of CO2. Carbon dioxide capturing capacity increased in the sequence Cs-MOR > K-MOR > Na-MOR. Langmuir and Freundlich models were used to describe the adsorption behavior of CO2 over alkali-mordenite samples, and good agreement with experimental data was found.
               
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