An ionic liquid, 1-ethyl-3-methylimidazolium bromide, is used as reaction medium for the synthesis and crystallization of
a coordination polymer, (EMI)[Cd(BTC)] (1) (EMI = 1-ethyl-3-methylimidazolium, BTC = 1,3,5-benzenetricarboxylate), which forms an
anionic three-dimensional framework with 1-ethyl-3-methylimidazolium cations located in the void space.
Magnetically separable Fe2O3@SBA-15 nanocomposite with fully open mesochannels and bifunctional surface properties was prepared by selective deposition of iron oxide nanoparticles in the micropores of mesoporous SBA-15 silica with hydrophobic mesopore surface. The iron oxide nanoparticles embedded in the micropores were estimated to be composed of 67% α-Fe2O3 and 33% γ-Fe2O3, and the nanocomposite was found to exhibit superparamagnetic properties. With the bifunctional surface properties, the Fe2O3@SBA-15 nanocomposite showed enhanced adsorption capacity for cytochrome c and a maximum saturated uptake at neutral solution pH.
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