YANG Zhuhong, WU Peipei, ZHANG Suoying, et al. Effect of different amino modified conditions on carbon dioxide adsorption of NH2-MIL-53(Al)[J]. CIESC Journal, 2014, (5). DOI: 10.3969/j.issn.0438-1157.2014.05.053.
YANG Zhuhong, WU Peipei, ZHANG Suoying, et al. Effect of different amino modified conditions on carbon dioxide adsorption of NH2-MIL-53(Al)[J]. CIESC Journal, 2014, (5). DOI: 10.3969/j.issn.0438-1157.2014.05.053.DOI:
MIL-53(Al) of different amino contents was prepared by changing the content of 2-amino terephthalic acid in ligands. The CO2 adsorption of NH2-MIL-53(Al) was investigated by varing the content
type of amino group and amino functional methods to improve the CO2 capture performance of MIL-53(Al). The synthesized materials were characterized with XRD
TG
infrared spectroscopy and N2 adsorption measurements
and the adsorption performance of NH2-MIL-53 towards CO2 was also investigated on the basis of the adsorption isotherms. The IR results indicated that the peak of —NH2 was found in the range of 3500—3900 cm-1
demonstrating that amino group was loaded successfully. The performance of CO2 adsorption kept fitting with the amino group content of NH2-MIL-53(Al)
and when amino group content was 100%
better CO2 adsorption than MIL-53(Al) prepared directly was observed. In addition
when MEA
DBU and MMEN were used for post-synthesis modifications
they all could not improve the adsorption performance of NH2-MIL-53(Al) towards CO2.