Methane (CH4), the chief constituent of natural gas and by-product of oil recovery is a major contributor to global warming almost ~25 times stronger than that of CO2.There has been increased drive on research for the direct conversion of CH4 to value-added hydrocarbons with high industrial potential like methanol (CH3OH), ethanol (CH3CH2OH), ethane (C2H6), ethylene (C2H4) etc. It is important to design green reactions that provide sustainable energy, cleaner environment and lesser emission of greenhouse gases in the coming future. The global reliance on non-renewable sources of energy has contributed to the growing environmental and climate challenges. Solar-driven energy generation through heterogeneous photocatalysis represents a sustainable solution to these challenges. Photocatalytic coupling of methane to ethane by using solar energy at room temperature is a promising approach for conversion of methane (CH4) to ethane (C2H6).