Study of water photosonolysis for hydrogen production

This paper deals with an experimental investigation on water photosonolysis for hydrogen production. Water splitting is obtained by superposition of photolysis and sonolysis phenomena (photosonolysis) which are induced by the combined action of sunlight and ultrasounds. An experimental device was realized to investigate such phenomena; experimental tests were carried out: hydrogen production increases linearly with time; besides, hydrogen production dims as pressure increases. Thus, the proposed method suggests further investigations focused to test improvements on ultrasound-water matching and sunlight catalyst; a new reactor will be designed which is characterized by innovative systems for hydrogen separation.