▎ 摘　　要

NOVELTY - Producing nanocomposite materials having a potential photocatalytic activity to degrade an organic pollutants, comprises: preparing graphite oxide; exfoliating the graphite oxide under agitating, and then a subsequent chemical reduction by at least one reducing agent; functionalizing the exfoliated graphene; controlling the growth of titanium dioxide nanoparticles; synthesizing the functionalized graphene titanium dioxide nanocomposite on the functionalized graphene surface; and degrading organic pollutants (dyes or pesticides) in water in the absence or presence of UV irradiation. USE - The method is useful for: producing nanocomposite material for degrading organic pollutants such as the organophosphorus pesticides of concentrations of 3-100 parts per million (all claimed); and treating water containing organic pollutants (dyes and pesticides), and industrial effluents rich in organic impurities, where the treated water is useful for irrigation, in industry or as a drinking water. ADVANTAGE - The method degrades the organic pollutants in water without using UV radiation. DETAILED DESCRIPTION - Producing nanocomposite materials having a potential photocatalytic activity to degrade an organic pollutants, where the nanocomposite comprises at least one nanostructured carbon material and/or a metal oxide semiconductor, comprises: preparing a graphite oxide via a chemical oxidation; exfoliating the graphite oxide under agitating; preferably sonication, and then a subsequent chemical reduction by at least a reducing agent (e.g. hydrazine hydrate); functionalizing the exfoliated graphene via an attack by a mixture of acids containing at least two acids, preferably three type of acid; controlling a growth of titanium dioxide nanoparticles by stabilizing them by nature anionic or cationic surfactant; synthesizing the functionalized graphene titanium dioxide nanocomposite on the functionalized graphene surface in presence or absence of anionic or cationic surfactant; and degrading organic pollutants (dyes or pesticides) in water in the absence or presence of UV irradiation, preferably in absence of UV source. An INDEPENDENT CLAIM is included for a photocatalytic composition comprising the semiconductor, which is crystallographically pure and in its anatase or equivalent pure form.