▎ 摘　　要

We report a simple synthetic route for the preparation of titanium dioxide (TiO2), cobalt ferrite (CoFe2O4) nanoparticle and reduced graphene oxide (RGO) based nanocomposites TiO2/CoFe2O4/RGO. This is the first time a non-hydrothermal technique is reported for preparation of TiO2/CoFe2O4/RGO nanocomposites. Moreover, unlike other reported methods only water was used as reaction medium. Catalytic activity of synthesized nanocomposites towards degradation of various dyes, such as Methyl Orange, Rhodamine B, Methylene Blue under visible light were investigated. Catalysis reactions were monitored by using UV-vis spectroscopy. TiO2/CoFe2O4/RGO exhibited its high capability to act as an excellent magnetically separable catalyst towards degradation of various dyes under visible light. The high catalytic activity and simple preparation methodology make TiO2/CoFe2O4/RGO nanocomposites an attractive catalyst for degradation of hazardous organic dyes.