Preparation and characteraction of new magnetic Co-AlHTLc/Fe3O4 solid base

Novel magnetic hydrotalcite-like compounds (HTLcs) were synthesized through introducing magnetic substrates (Fe3O4) into the Co-Al HTLcs materials by hydrothermal method. The magnetic Co-Al HTLcs with different Fe3O4 contents were characterized in detail by XRD, FT-IR, SEM, TEM, DSC, and VSM techniques. It has been found that the magnetic substrates were incorporated with HTLcs successfully, although the addition of Fe3O4 might hinder the growth rate of the crystal nucleus. The morphology of the samples showed the relatively uniform hexagonal platelet-like sheets. The grain boundaries were well defined with narrow size distribution. Moreover, the Co-Al HTLcs doped with magnetic substrates presented the paramagnetic property.