Shape- and Morphology-Controlled
Sustainable Synthesis
of Cu, Co, and In Metal Organic Frameworks with High CO<sub>2</sub> Capture Capacity
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Abstract
We studied the effects of various surfactants on the
shape and
morphology of three metal organic frameworks (MOFs), i.e., Co-MOF,
Cu-MOF, and In-MOF, which were synthesized under microwave irradiation.
The as-synthesized materials were characterized by X-ray powder diffraction
(XRD), scanning electron microscopy (SEM), thermogravimetric analysis
(TGA), and nitrogen sorption. The effects of microwave irradiation
time, temperature, and surfactant template were investigated. The
synthetic parameters, including the type of surfactant template and
the reaction temperature, played crucial roles in the size, shape,
and morphology of the MOF microcrystals. We also evaluated these MOFs
as sorbents for capturing CO<sub>2</sub>. Of the synthesized materials,
Cu-MOF demonstrated the highest CO<sub>2</sub> capture capacity, even
at atmospheric pressure and ambient temperature