 This research paper proposes a novel photo catalyst composed of boron, doped graphene oxide, BGO, and copper sulfide, COS. This material was synthesized by a hydrothermal process and then tested in order to evaluate its efficiency in removing methylene blue dye from water. The results showed that this material was able to degrade the dye up to 95%, which is significantly higher than other similar materials. Furthermore, the authors used a combination of experimental data and mathematical modeling to determine the optimal conditions for maximum dye removal. This article was authored by Ahmed Farhan, Mohamed Zahid, Nour Tahir, and others.