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Activated carbon was oxidized by an acid mixture of concentrated HNO3 and H2SO4 with a volume ratio of 1:1 diluted with the same volume of de-ionized water, followed by reduction with iron dust to modify its surface chemical properties for CO2 adsorption. The samples before and after the modification were characterized by N2 adsorption, elemental analysis, FT-IR and XPS. CO2 adsorption properties...
Magnetic iron/graphitic mesoporous carbon composites were prepared by a simple one-step solid–liquid grinding/templating route. X-ray diffraction, nitrogen adsorption–desorption, transmission electron microscopy, vibrating-sample magnetometry and thermogravimetric analysis were used to characterize the samples. It was observed that a high content of magnetic iron nanoparticles could be embedded in...
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