Synthesis of PGMA@GO composite microspheres with core-shell structure and their adsorption properties for methvlene blue
Polyglycidyl methacrylate-graphene oxide composite microspheres(PGMA@GO)were successfully synthesized by amide reaction.The morphology and size of PGMA@GO composites were observed by SEM and TEM.The effects of initial pH,adsorption time and initial concentration on adsorption capacity of methylene blue(MB)were investigated.The results showed that the particle diameters of PGMA@GO microspheres were approximately 1.5μm with core-shell structure.The adsorption process was pseudo-second order and matched the Langmuir model with the maximum adsorption capacity of 161.0mg·g-1 for methylene blue(MB).This indicated that MB was adsorbed onto PGMA@GO mainly by chemical interactions via monolayer.
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