Effects of amino functionality on uptake of CO2, CH4 and selectivity of CO2/CH4 on titanium based MOFs
Zana Hassan Rada, Hussein Rasool Abid, Jin Shang, Yingdian He, Paul Webley, Shaomin Liu, Hongqi Sun, Shaobin Wang
FUEL | ELSEVIER SCI LTD | Published : 2015
Abstract This study examines adsorption of CO2 and CH4 gases and CO2/CH4 selectivity on titanium based MOFs such as MIL-125(Ti), NH2-MIL-125(Ti) and MIX-MIL-125(Ti) at high pressures up to 10 bar. Characterization and structural analysis of the samples were studied using FT-IR, XRD, TGA, SEM and N2 adsorption/desorption. The effects of double linkers in the synthesis process and addition of amino-functionalised linker in the structure on adsorption of CO2 and CH4 have been discussed. It was found that addition of NH2 functional group will increase surface area and micropore volume, but reduce particle size. Meanwhile, both CO2 and CH4 adsorption will also be increased. Using binary linkers, ..View full abstract
We thank Ms Elaine Miller for SEM measurements. We also acknowledge the Ministry of Higher Education and Minister of Natural Resources/Kurdistan regional government-Iraq for PhD scholarship.