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|1. (WO2018201715) GRAPHENE AND FERROFERRIC OXIDE@GOLD COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF|
|Applicants:||GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
|Title:||GRAPHENE AND FERROFERRIC OXIDE@GOLD COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF|
A preparation method for use with a graphene and ferroferric oxide@gold composite material, and a product and application thereof. A preparation process for the graphene and ferroferric oxide@gold composite material is as follows: first, constructing an azide thiol-modified ferroferric oxide@gold complex; activating graphene oxide by means of dichlorosulfoxide and then reacting with propargyl alcohol to form alkynyl graphene oxide; next catalyzing the two under a nitrogen atmosphere such that a click reaction occurs between an alkynyl group and an azide group, thereby obtaining the composite material. Reaction conditions of the preparation method for use with the graphene and ferroferric oxide@gold composite material are mild, and the preparation method is simple and reliable. The graphene and ferroferric oxide@gold composite material is connected by means of a covalent bond such that the system is stable, and has the features of good magnetic and microwave absorption performance, good plasma resonance absorption and attenuation of X-rays. The present invention may be applied in nuclear magnetic imaging, microwave thermoacoustic imaging, photoacoustic imaging and X-ray imaging.