▎ 摘　　要

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 results show that GOWT films possess higher photocatalytic efficiency in contrast to graphene oxide/TiO2 (GOT) films under sunlight, and the degradation rate of RhB is 2.6 times as GOT films under UV light. Furthermore, GOWT film possess higher removal ability than GOT film under high concentration, but completely degrade RhB under flowing solution of low concentration, which is ascribed to the unique structure and superior performance of WO3 quantum dots. Besides, GOWT films have the potential application in sewage treatment without further contamination.