The generation of significant amounts of H2 and O2 from water splitting utilizing nonprecious metal photoelectrocatalysts within the electrolysis pathway is targeted. Accordingly, black titanium/carbon nitride (BT) is first synthesized using a simple method, then it is mixed with various weight percentages of graphene foam (GF; 5–20%). The catalyst 10% GF/BT demonstrates superior HER performance under neutral conditions (1.0 M KCl) at an overpotential of −0.02 V at 10 mA cm−2 exceeding that of Pt/C values (0.53 V). An overpotential of −0.75 and −1.22 V at 50 and 100 mA cm−2, respectively, was also exhibited. However, oxygen evolution reaction (OER) displays an overpotential of 0.67 V at η10. Additionally, the 10% GF/BT bifunctional electrode displayed perfect water splitting with 1.5 V at 10 mA cm−2 current density. The correlations of the activity in different media, besides texturing, morphology, and structural characteristics examined by XRD, HRTEM-SAED-FFT, FTIR, and XPS, were assessed and discussed.