▎ 摘　　要

NOVELTY - Fabricating magnetic graphene-based nanocomposite (30), comprises: mixing by placing graphene oxide layer/many stacked graphene oxide layers, iron-containing precursor and microwave-receiving material in container; and microwaving by applying microwave radiation to graphene oxide layer/stacked graphene oxide layers, iron-containing precursor and microwave-receiving material to reduce graphene oxide layer/stacked graphene oxide layers into reduced graphene oxide layer/many stacked reduced graphene oxide layers (31) and decompose iron-containing precursor into many iron nanoparticles (32). USE - The method is useful for fabricating magnetic graphene-based nanocomposite (claimed) which is useful for purifying water. ADVANTAGE - The method: produces the magnetic graphene-based nanocomposite which has superparamagnetism (claimed) and superior antibiotic effect with free of toxicity, absorbs lead, chromium, arsenic and bisphenol A effectively; and is a simple method to effectively decrease the time of fabricating the composite containing graphene oxide and magnetite. DETAILED DESCRIPTION - Fabricating a magnetic graphene-based nanocomposite (30), comprises: mixing by placing a graphene oxide layer/many stacked graphene oxide layers, an iron-containing precursor and a microwave-receiving material in a container; and microwaving by applying microwave radiation to the graphene oxide layer/the stacked graphene oxide layers, the iron-containing precursor and the microwave-receiving material to reduce the graphene oxide layer/the stacked graphene oxide layers into a reduced graphene oxide layer/many stacked reduced graphene oxide layers (31) and decompose the iron-containing precursor into many iron nanoparticles (32) adhering to at least one surface of the reduced graphene oxide layer/the stacked reduced graphene oxide layers, thus forming a magnetic graphene-based nanocomposite. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the structure of the magnetic graphene-based nanocomposite. Magnetic graphene-based nanocomposite (30) Reduced graphene oxide layers (31) Iron nanoparticles (32)