Preparation and application of micro/nano hydrated magnesium carbonate Preparation and application of graphene-based nanocomposites Preparation and application of nano carbides and nitrides Preparation and application of typical natural pigments Preparation and application of Mn-Zn ferrite composites Preparation and application of metal organic framework materials Preparation and application of nanomaterials Preparation and application of nonferrous metal materials Preparation and application of zinc series photocatalysts Preparation and application of new composite catalytic materials