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Asian Journal of Biomedical and Pharmaceutical Sciences | ISSN: 2249-622X | Volume 8
&
Joint Event
Chemistry and Organic Chemistry
Biomedicine & Pharmacotherapy
International Conference on
8
th
World Congress on
October 22-23, 2018 | Frankfurt, Germany
Preparation of MOF materials in water at room temperature
Negash Getachew
Addis Ababa University, Ethiopia
M
etal-Organic Frameworks (MOFs) are a new class of hybrid
inorganic – organic porous materials. Porous materials are
very useful in gas storage, adsorption based gas/vapor separation,
shape/size-selective catalysis, drug storage and delivery etc.
Chemistry of Metal-Organic Frameworks is extraordinarily rich.
However, this richness has been scarcely exploited in their
syntheses, which are still widely dominated by environmentally
not benign procedures including solvothermal treatments, harmful
solvents etc. This work focuses on changing the solvent and
practically the only parameter that has not been altered in the
synthesis of MOFs, i.e. the protonated nature of the linker source.
Instead alkaline salts of organic linkers have been used. The
approach resulted in affordingMOFmaterials in a rapid, cheap and
environmentally friendly way, allowing the preparation of high-
quality carboxylate based MOFs under particularly sustainable
conditions; room temperature and water as the only solvent
in particular for MIL-53(Al). Amongst some other advantages,
the preparation of MIL-53(Al) is free of any linker molecules,
avoiding the subsequent calcinations step, which is compulsory
in the conventional MIL-53 (Al) materials. The method has been
successfully applied to some other emblematical MOF materials.
Furthermore, the method circumvents the harsh condition in
the synthesis of MOFs; high temperature and the use hazardous
solvents. It does not only imply the prevention of the undesirable
corrosive synthesis medium, but it also introduces substantial
differences in terms of solubility of the linker and pH of the
medium. Furthermore, it is relevant in the generation of MOFs
with important textural properties. Themethod can be applied as
a general strategy consisting in the use of salts as an alternative
to the exclusively tested acidic protonated linkers.
e:
betimoses@yahoo.comChemistry and Biomedicine 2018, Volume 8
DOI: 10.4066/2249-622X-C4-012