GO-TiO2 composite is used in the thin film composite membranes for water treatment and nanofiltration. In these works, the authors have synthesized the GO-TiO2 by first oxidizing Graphene by Hummers method and then adding Ti precursor. However, since I already have the GO and TiO2 nanoparticles, how do I make a GO-TiO2 for incorporating into the thin film composite polyamide layer? Thanks in advance.