Different amounts of rGO in the composites result in different amounts of quenching, and the TNFG-2 showed the maximum quenching. However, an increase of rGO content resulted in a decrease in the quenching of the PL peaks. Thus, there was an optimal value of the TNFs and GO ratio, which can produce rGO wrapped TNFs, to efficiently separate the photo generated charge carriers across the interface, and suppress the electron–hole recombination in TiO2.