Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
149916 | Chemical Engineering Journal | 2012 | 5 Pages |
In this study, we have synthesized a hybrid composite of acid treated multi walled carbon nanotubes (MWCNTs) and metal organic framework MIL-101 and denoted as MWCNT@MIL-101. For synthesis of this composite, well dispersed MWCNTs in dimethylformamide were mixed with hydrofluoric acid solution of chromium nitrate nonahydrate and terephthalic acid. The MWCNT@MIL-101 obtained has the same crystal structure and morphology as that of virgin MIL-101, but carbon dioxide (CO2) adsorption capacity is increased about 60% (from 0.84 to 1.35 mmol g−1) at 298 K and 10 bar. The increment in the CO2 adsorption capacity of MWCNT@MIL-101 is attributed to the increase of micropore volume of MIL-101 by MWCNT incorporation.
► A hybrid composite of MWCNTs and MIL-101 was synthesized. ► The resulting samples were characterized by BET, SEM, TGA, FT-IR and XRD analysis. ► Carbon dioxide adsorption capacity over MIL-101 increased about 60%. ► MWCNTs incorporation enhanced micropore volume and CO2 adsorption capacity.