Preparation, modification and application of novel magnetic nanomaterials Preparation, modification and application of magadiite Preparation, modification and application of biodegradable packaging film 并列题名：Preparation, modification and application of magadiite Preparation and characterization of novel functional materials Preparation and application of nanomaterials Preparation and application of nonferrous metal materials Preparation and application of metal organic framework materials Innovation and application of green building materials 并列题名：Innovation and application of green building materials