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CO<sub>2</sub> adsorption study on ZIF-8
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This article presents the results for synthesis of ZIF-8 and its CO2 adsorption ability. The material was characterized by XRD, TEM, BET,… ZIF-8 was a porous structure and high BET surface area. ZIF-8 showed great potential for the capture of carbon dioxide, having a capacity of 11,176 mmol/g and the data of CO2 adsorption on ZIF-8 were well fitted to the Langmuir isotherm. The principle mechanism of CO2 adsorption on ZIF-8, simultaneous proton transfer and nucleophilic attack of nitrogen on the CO2 molecules created an ammonium carbamate; after that, the bond for zinc ion with ammonium carbamate was formed. Morever, the interaction of ammonium with carbamate of neighboring ammonium carbamate species also increase CO2 adsorption capacity.
Vietnam Association of Catalysis and Adsorption
Title: CO<sub>2</sub> adsorption study on ZIF-8
Description:
This article presents the results for synthesis of ZIF-8 and its CO2 adsorption ability.
The material was characterized by XRD, TEM, BET,… ZIF-8 was a porous structure and high BET surface area.
ZIF-8 showed great potential for the capture of carbon dioxide, having a capacity of 11,176 mmol/g and the data of CO2 adsorption on ZIF-8 were well fitted to the Langmuir isotherm.
The principle mechanism of CO2 adsorption on ZIF-8, simultaneous proton transfer and nucleophilic attack of nitrogen on the CO2 molecules created an ammonium carbamate; after that, the bond for zinc ion with ammonium carbamate was formed.
Morever, the interaction of ammonium with carbamate of neighboring ammonium carbamate species also increase CO2 adsorption capacity.
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