Studies on the evolution of ZnO morphologies in a thermohydrolysis technique and evaluation of their functional properties

S. Anas, R. V. Mangalaraja, S. Ananthakumar

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

The transformation of ZnO morphologies in an in situ thermohydrolysis technique using hexamethylene tetramine is studied with and without surfactants. The photocatalytic and photoluminescence properties of these morphologically tuned ZnO morphologies are studied and the results presented. In the absence of any surfactants, the HMTA assisted in situ hydrolysis resulted in microtube and multipod morphologies. The addition of nonionic [Span-80] and cationic [CTAB] surfactants transforms the morphologies to microspheres, microdiscs and nanorods. The photoluminescence analysis shows a red luminescence in nanorods and green-indigo and blue-green emissions in microtubes and other morphologies. Photocatalytic reaction efficiency in UV light follows the order microtubes > nanorods > microdiscs > microspheres>multipods.

Original languageEnglish
Pages (from-to)889-895
Number of pages7
JournalJournal of Hazardous Materials
Volume175
Issue number1-3
DOIs
StatePublished - 15 Mar 2010
Externally publishedYes

Keywords

  • Morphology
  • Photocatalysis
  • Photoluminescence
  • Surfactant
  • Zinc oxide

Fingerprint

Dive into the research topics of 'Studies on the evolution of ZnO morphologies in a thermohydrolysis technique and evaluation of their functional properties'. Together they form a unique fingerprint.

Cite this