We successfully synthesized a series of hydrotalcite functionalized Ru metal catalytic system. Sophisticated analytical techniques like FTIR, N-2 physisorption, ICP-OES, XPS and TEM analysis were applies to understand the physiochemical nature of and structural arrangements of functionalized hydrotalcite materials. We applied this system with and without ionic liquid medium and Schiff-base-modified Ru nanometal catalyst were found highly active in terms of formic acid synthesis. As per the spectral analysis activation of CO2 was confirmed by a weakly bonded carbamate zwitterion intermediate followed by simple addition of Lewis base adduct of CO2 gas. We also recycled the ionic liquid mediated Ru metal loaded functionalized hydrotalcite system up to eight runs without any significant loss of catalytic activity. [GRAPHICS] .