▎ 摘　　要

NOVELTY - Preparation of visible-light-responsive bismuth titanate-titania/reduced graphene oxide nanocomposite photocatalyst, involves dissolving a bismuth source in alcohol, adding a titanium source, stirring, heating and reacting, cooling, filtering, washing, drying, and calcining to obtain bismuth titanate-titania solid particles, preparing a graphene oxide suspension, adding the solid particles, stirring, heating and reacting, cooling, filtering, washing, and drying. USE - Preparation of visible-light-responsive nanocomposite photocatalyst used for decomposing ciprofloxacin (all claimed). ADVANTAGE - The method enables simple and quick preparation of nontoxic and environmentally-friendly visible-light-responsive nanocomposite photocatalyst having excellent synergistic effect of bismuth titanate and titania, and photocatalytic performance. DETAILED DESCRIPTION - Preparation of visible-light-responsive bismuth titanate (Bi2Ti2O7)-titania/reduced graphene oxide nanocomposite photocatalyst, involves dissolving a bismuth source in alcohol, adding a titanium source, stirring, heating and reacting, cooling, filtering, washing, drying, and calcining to obtain bismuth titanate-titania solid particles, preparing a graphene oxide suspension, adding the solid particles, stirring, heating and reacting, cooling, filtering, washing, and drying. An INDEPENDENT CLAIM is included for the nanocomposite photocatalyst having a diameter of 300-500 nm.