title: Gas-Phase Photochemical Overall H2S Splitting by UV Light Irradiation.
abstract: Splitting of hydrogen sulfide is achieved to produce value-added chemicals. Upon irradiation at 254 nm in the gas phase and in the absence of catalysts or photocatalysts at near room temperature, H2S splits into stoichiometric amounts of H2and S with a quantum efficiency close to 50 %. No influence of the presence of CH4and CO2(typical components in natural gas and biogas in which H2S is an unwanted component) on the efficiency of overall H2S splitting was observed. A mechanism for the H2and S formation is proposed.
authors.affiliation: Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
authors.forename: Herme G
authors.initials: HG
authors.lastname: Baldovi
authors.affiliation: Instituto Universitario de Tecnología Química, CSIC-UPV, Universitat Politècnica de València, Avda. de los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: Josep
authors.initials: J
authors.lastname: Albero
authors.affiliation: Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
authors.forename: Belen
authors.initials: B
authors.lastname: Ferrer
authors.affiliation: Instituto Universitario de Tecnología Química, CSIC-UPV, Universitat Politècnica de València, Avda. de los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: Diego
authors.initials: D
authors.lastname: Mateo
authors.affiliation: Departmento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Alvaro
authors.affiliation: Instituto Universitario de Tecnología Química, CSIC-UPV, Universitat Politècnica de València, Avda. de los Naranjos s/n, 46022, Valencia, Spain.
authors.forename: Hermenegildo
authors.identifier: 0000-0002-9664-493X
authors.initials: H
authors.lastname: García
mesh_terms: D056804:Biofuels; D006859:Hydrogen; D006862:Hydrogen Sulfide / Q000528:radiation effects*; D055668:Photochemical Processes / Q000528:radiation effects*; D013455:Sulfur; D014466:Ultraviolet Rays
chemical_list: D056804:Biofuels; D013455:Sulfur; D006859:Hydrogen; D006862:Hydrogen Sulfide
keywords: hydrogen production; hydrogen sulfide; photochemistry; quantum yield; uv light