Nanostructured ZnS:Ni2+ photocatalysts prepared by ultrasonic spray pyrolysis

Jin Ho Bang, Richard J. Helmich, Kenneth S. Suslick

Research output: Contribution to journalArticlepeer-review

Abstract

A study has demonstrated a facile preparation of nanostructured Ni 2+ doped ZnS (ZnS:Ni2+) hollow microspheres and nanoparticles using ultrasonic spray pyrolysis (USP). The study has also examined the visible light photocatalytic water splitting from ZnS (ZnS:Ni 2+) system in the presence of sacrificial electron donors (K 2SO3 and Na2S) by changing reaction temperature. The study has also quantitatively compared the hollow spheres, nanoparticles, and solid spheres, and the photocatalytic activity of ZnS:Ni 2+ nanoparticles for H2 production also was proven to be substantially superior to those of ZnS:Ni2+) hollow spheres and solid spheres. The USP nanoparticles evolved as significantly more active and stable than ZnS:Ni2+ powders prepared by traditional co-precipitation, and has proven to be a robust synthetic approach to prepare highly active photoctalysts.

Original languageEnglish (US)
Pages (from-to)2599-2603
Number of pages5
JournalAdvanced Materials
Volume20
Issue number13
DOIs
StatePublished - Jul 2 2008

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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