Influence of ZnS wurtzite–sphalerite junctions on ZnOCore-ZnSShell-1D photocatalysts for H2 production

Guadalupe Mendoza-Damián, Agileo Hernández-Gordillo, Ma Eufemia Fernández-García, Próspero Acevedo-Peña, Francisco Javier Tzompantzi-Morales, Raúl Pérez-Hernández

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

26 Citas (Scopus)

Resumen

The ZnOcore-ZnSshell like nanoparticles have been prepared in ethanol by the hydrothermal method using different sulfur loading. These kind of nanomaterials were characterized by X-ray diffraction, Scanning and Transmission Electron Microscopy, Photoluminescence, and the surface area was determined by BET method. Photocatalytic H2 production from ethanol in aqueous solution has been studied at ambient temperature under UV irradiation and molecular simulation was also included. The optimum ZnS contents for H2 production, from ethanol aqueous solution, on the ZnOcore-ZnSshell like nanoparticles were 50 mol% of S loading on ZnO-1D. The H2 yield was about 1200–1500 μmol/hg obtained under prolonged time irradiation. Experimental results showed that the photocatalytic H2 production could be enhanced remarkably by depositing a suitable amount of ZnS on ZnO-1D surface. Based on our simulation results, we suggest that the water and ethanol were adsorbed preferentially on the surface of sphalerite than on the wurtzite structure and H2 is released from the sphalerite structure.

Idioma originalInglés
Páginas (desde-hasta)10528-10540
Número de páginas13
PublicaciónInternational Journal of Hydrogen Energy
Volumen44
N.º21
DOI
EstadoPublicada - 23 abr. 2019
Publicado de forma externa

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