▎ 摘　　要

NOVELTY - Magnetic titanium dioxide matrix modified photocatalyst i.e. titanium dioxide-graphene oxide/iron(II, III) oxide complex nanomaterial (I), is new. (I) is obtained by grafting titanium dioxide nanoparticle (II) and iron(II, III) oxide nanoparticle on the primary element material by using a single-layer graphene oxide as a base element material. USE - The magnetic titanium dioxide matrix modified photocatalyst is useful for efficient photocatalytic treatment of neonicotinoid pesticide pollutants (claimed). ADVANTAGE - The magnetic titanium dioxide matrix modified photocatalyst: has excellent stability, high degradation rate of micro-pollutants, simple preparation method; absorbs visible light in the full visible spectrum and being easy to recycle and reuse. DETAILED DESCRIPTION - Magnetic titanium dioxide matrix modified photocatalyst i.e. titanium dioxide-graphene oxide/iron(II, III) oxide complex nanomaterial of formula (TiO2-xrGO/Fe3O4) (I), is new. (I) is obtained by grafting titanium dioxide nanoparticle of formula (TiO2-x) (II) and iron(II, III) oxide nanoparticle on the primary element material by using a single-layer graphene oxide (rGO) as a base element material. x = 0.05-0.45; r = not defined. An INDEPENDENT CLAIM is also included for preparation of (I).