• 专利标题:   Graphene oxide-cadmium sulfide magnetic composite microsphere comprises polymer magnetic microsphere, graphene oxide and cadmium sulfide, where polymer magnetic microsphere is covered with iron oxide nanoparticles.
  • 专利号:   CN105642347-A
  • 发明人:   LONG J, SUN F
  • 专利权人:   UNIV SOUTH CHINA NORMAL
  • 国际专利分类:   B01J031/06, C02F001/30, C02F101/38
  • 专利详细信息:   CN105642347-A 08 Jun 2016 B01J-031/06 201664 Pages: 11 Chinese
  • 申请详细信息:   CN105642347-A CN10104450 25 Feb 2016
  • 优先权号:   CN10104450

▎ 摘  要

NOVELTY - Graphene oxide-cadmium sulfide magnetic composite microsphere comprises polymer magnetic microsphere, graphene oxide and cadmium sulfide, where the polymer magnetic microsphere is covered with iron(II,III) oxide nanoparticles, polymer magnetic microsphere is poly(styrene-maleic anhydride)copolymer microsphere, graphene oxide is coated on magnetic microsphere surface, and cadmium sulfide is attached to graphene oxide surface. USE - Graphene oxide-cadmium sulfide magnetic composite microsphere. ADVANTAGE - The graphene oxide-cadmium sulfide magnetic composite microsphere is prepared in simple manner and recycle easily, and has good photocatalytic performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene oxide-cadmium sulfide magnetic composite microsphere, which involves: (A) mixing iron(II,III) oxide nanoparticles and polyethylene glycol; (B) mixing the stirred material with styrene monomer to obtain obtain solution 1; (C) dissolving azodiisobutyronitrile, maleic anhydride and polyethylene pyrrolidone in ethanol; (D) adding the dissolved material with water to obtain solution 2; (E) mixing and treating the solution 1 and 2 to perform with ultraviolet light for 20-30 hours and then centrifuging, washing and drying the treated material to obtain obtain polymer magnetic microsphere; (F) dispersing polymer magnetic microsphere in water ultrasonically to obtain polymer magnetic microsphere dispersion; (G) stirring the obtained dispersion with graphene oxide dispersion liquid for 10-20 minutes to obtain obtain graphene oxide-polymer magnetic microsphere; (H) adding the obtained material with mixture of soluble cadmium salts and soluble thiosulfate; (I) dispersing the obtained material ultrasonically to obtain precursor solution; (J) treating the precursor solution with ultraviolet light for 6-24 hours and then centrifuging the treated material; and (K) washing and drying the obtained precipitate to obtain the desired product.