Hydrogen fuel has gained heed in the recent years as fossil fuels and other non-renewable sources of fuels are fast depleting. Hydrogen has been contemplated to be a prospective source of an alternative fuel, predominantly if it can be produced from a renewable and sustainable source such as water. Methods such as photocatalytic water splitting are arguably one of the simple methods to produce clean, green and renewable energy by disassociating water into H₂  (hydrogen) and O₂ (oxygen) using catalyst and sunlight. Numerous techniques have been developed to improve photocatalytic activity in materials such as TiO₂. This paper describes the recent progress, state of art and the future challenges in photocatalytic water splitting.