High yield synthesis of intrinsic, doped and composites of nano-zinc oxide using novel combinatorial method

Nahar Singh, Rashmi, Tarushee Ahuja, Sukhvir Singh, Renu Pasricha, D. Haranath

Research output: Contribution to journalArticle


A novel synthesis of the production of luminescent zinc oxide (ZnO), either in its intrinsic, metal, non-metal-doped or composite forms with high yield has been developed by parallel iterative techniques, within a combinatorial library prepared by the reduction of nitroarenes. The reduction of nitroarenes by aluminium/zinc dusts in alkaline medium (pH 10 ± 2) forms azoxy compounds, whereas in acidic medium (pH 4.9 ± 0.2) forms phenyl hydroxylamine and zinc/aluminium dust gets oxidised into respective hydroxide. Here, we demonstrate the reduction of nitroarenes at neutral pH (7.0 ± 0.2), which forms intrinsic as well as doped ZnO at 50 ± 5 °C using zinc dust alone or mixtures of salts of several transition and non-transition metals in presence of 1:10 ratio of solvent and water. Interestingly, it is observed that the photoluminescence emission could be tuned in a wide range from 390 to 615. nm useful for many display related devices.

Original languageEnglish (US)
Pages (from-to)40-45
Number of pages6
JournalJournal of Colloid And Interface Science
Issue number1
StatePublished - Mar 1 2012



  • Combinatorial method
  • Intrinsic and doped ZnO
  • Nanocomposites
  • Photoluminescence
  • Reduction of nitroarenes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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