NOVELTY - A hydrogen production apparatus comprises a solution including hydrogen sulfide provided within a container; a photo-anode formed of N-type semiconductor, partially coated with catalyst material; and photo-cathode formed of P-type semiconductor, partially coated with catalyst material, and electrically coupled to the photo-anode. Hydrogen is thus separated from sulfur in hydrogen sulfide solution and hydrogen gas is produced.    USE - The apparatus is used for synthesis of hydrogen atoms from a solution of hydrogen sulfide.    ADVANTAGE - The method efficiently produces clean hydrogen without the need for an outside source of electricity and without producing environmentally hazardous gasses. It realizes an efficiency of 10-100 times great than that of the prior-art devices and methods. It also produces hydrogen with negative costs.    DETAILED DESCRIPTION - A hydrogen production apparatus comprises a solution including hydrogen sulfide and provided within a container; a photo-anode formed of N-type semiconductor, partially coated with catalyst material, and partially submerged in solution; and photo-cathode formed of P-type semiconductor, partially coated with catalyst material, partially submerged in solution, and electrically coupled to the photo-anode. The photo-cathode and photo-anode develop charges of opposite polarity when exposed to a light source to separate hydrogen from sulfur in hydrogen sulfide of solution and produce hydrogen gas.    An INDEPENDENT CLAIM is also included for method for producing hydrogen, comprising:    (a) providing a solution including hydrogen sulfide within a container;    (b) providing an N-type photo-anode that is partially submerged in the solution;    (c) providing a P-type photo-cathode that is partially submerged in the solution;    (d) exposing the photo-anode and the photo-cathode to at least one light source; and    (e) collecting a hydrogen gas from the container, the hydrogen gas being the byproduct of a reaction between the solution and the photo-cathode.    DESCRIPTION OF DRAWING(S) - The figure is a flow diagram of the hydrogen evolution and sulfur deposition process.