Photocatalytic removal of hazardous dye from water using nanostructured WO3

M. A. Gondal, K. Hayat, Mazen M. Khaled, Z. H. Yamani, Shakeel Ahmed

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Nanoparticles of WO3 were synthesised using precipitation method. A special photo-reactor was designed for water purification using local resources. Laser enhanced photo-degradation for efficient removal of poisonous substances like dye (alizarin yellow GG) present in waste water was carried out using as synthesised WO3 by irradiating with a 355 nm radiation generated from third harmonic of Nd: YAG laser. The effect of initial concentration of dye, catalyst concentration, and laser light intensity on removal efficiency of dye was investigated. Almost 100% degradation was achieved using nanostructured WO3 in short span of time which is not possible with microstructure WO3 catalysts and using conventional custom made setups. To the best of our knowledge, this is a first study of its kind where laser and nano particles WO3 have been utilised together for removal of the dye.

Original languageEnglish
Pages (from-to)53-63
Number of pages11
JournalInternational Journal of Nanoparticles
Volume4
Issue number1
DOIs
StatePublished - Jan 2011

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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