▎ 摘　　要

Graphene-TiO2-polyaniline (GP-TiO2-PANI) nanocomposites have been prepared via sol gel method. A reduction of nitro aromatic organic compounds using synthesized GP-TiO2-PANI nanocomposite photocatalyst under visible light in aqueous phase was reported. Photo irradiation (X > 420 nm) of GP-TiO2-PANI photocatalysts reduces nitro aromatics in absence of NaBH4 with high yields. Graphene acts as electron carrier and adsorbent which is essential for visible light motivated photocatalytic reduction of nitro aromatics over GP-TiO2-PANI disclosed by control experiments. The current work can broaden its applications of photocatalyst for various organic transformations which are economically viable. The reduction of nitro group of nitro aromatics by GP-TiO2-PANI is a green and selective reaction.