It is maximal difficult for the application of powdery nanocatalyst in sewage treatment to retrieve powder catalyst from the reaction solution. In this paper, after synthesized graphene oxide/WO3 quantum dots/TiO2 (GOWT) composite with high catalytic performance under visible light, GOWT composite powder was used to fabricate GOWT films by using Al(H2PO4)3 as adhesive and cheap gauze as substrates, and studied the effect of Rhodamine B (RhB) concentration on the removal ability of GOWT film by evaluating flowing liquid of RhB. Experimental resu...