Article thumbnail

Photocatalytic hydrogen production with visible light using nanocomposites of CdS and Ni on niobium oxide

By William C. Balcerski, Su Young Ryu and Michael R. Hoffmann

Abstract

Niobium oxides (KNbO_3, K_4Nb_6O_(17)) were combined with nano-particulate CdS and Ni to form composite photocatalysts that are able to produce H_2 gas from water/ethanol solutions under visible light illumination. Ni doping was shown to affect the Nb–O bonding states, and to compete with Cd for ion exchange sites, although the Ni/CdS-doped catalysts still were found to have higher photo-catalytic activity than composite potassium niobates with nanoparticle CdS deposits alone. XPS studies showed the loss of excess Cd^(2+), but not sulfur, during the course of the photoreaction for the KNbO_3 support matrix, but significant loss of both Cd and S for the K_4Nb_6O_(17) support

Publisher: 'Elsevier BV'
Year: 2015
OAI identifier: oai:authors.library.caltech.edu:63463
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://resolver.caltech.edu/C... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.