Water splitting via photocatalysis using titanium dioxide (TiO₂) holds great potential for hydrogen gas generation. Herein, zeolitic imidazolate framework (ZIF-67) was used as a sacrificial precursor for the synthesis of cobalt oxide embedded nitrogen doped carbon (Co₃O₄@C) that was used as a co-catalyst with TiO₂ for the hydrogen generation via photocatalytic water splitting. The optimal loading of Co₃O₄@C (7 wt%) exhibited a photocatalytic hydrogen production rate (HGR) of 11,400 µmol g⁻¹ h⁻¹. It demonstrated a 75-fold and 110-fold increase for cumulative (5 h) and initial hydrogen generation rates, respectively. The electrochemical measurements such as cyclic voltammetry (CV), linear scan voltammetry (LSV), electrochemical independence spectroscopy (EIS) using Nyquist plots, and photocurrent response were conducted to evaluate the catalytic performance of Co₃O₄@C/TiO₂. Transient photocurrent response showed significant enhancement (4-fold) in photocurrent density of TiO₂. Co₃O₄@C promoted the photocatalytic performance of TiO₂ and improved the HGR. The photocatalysis using Co₃O₄@C/TiO₂ is recyclable for more than four cycles without significant loss of their performance. The results of our study may open the door for further exploration toward effective photocatalyst.