ZnO nanonails: Organometallic synthesis, self-assembly and enhanced hydrogen gas production

Siti Nur Haslinda Mohd Daud, Choonyian Haw, Weesiong Chiu, Zarina Aspanut, Meiyuen Chia, Noor Hamizah Khanis, Poisim Khiew, Muhammad Azmi Abdul Hamid

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We report the rational synthesis and characterizations of defect-rich zinc oxide (ZnO) nanonails that were prepared by organometallic approach and their implementation as an efficient photocatalyst for hydrogen (H2) generation. The ZnO nanonails were prepared from zinc stearate in n-octadecene that serves as non-coordinating solvent without the presence of any capping agent. Transmission electron microscopy (TEM) studies reveal that the individual triangular prismatic nanonail has an average edge length of 50–70 nm and it appears to have preferred growth orientation along [0001] crystal axis. Intriguingly, this nanonails show oriented-attachment along the flat-basal edge and self-assembled into twinned structure. Such structure is interconnected via a narrow-gap to form symmetrical twinned-like nanonails with truncated tips at both ends. In comparison to ZnO commercial nanopowder, ZnO nanonails show significant enhancement in photocatalytic H2 gas generation rate of 53.33% under UV light for 5 h. These results demonstrate ZnO nanonails to be a substantial potential photocatalyst for efficient photocatalytic applications.

Original languageEnglish
Pages (from-to)228-237
Number of pages10
JournalMaterials Science in Semiconductor Processing
Volume56
DOIs
Publication statusPublished - 1 Dec 2016

Fingerprint

Zinc Oxide
Organometallics
Zinc oxide
zinc oxides
Self assembly
self assembly
Hydrogen
Gases
hydrogen
synthesis
gases
Photocatalysts
stearates
Ultraviolet radiation
Crystal orientation
attachment
Zinc
zinc
Transmission electron microscopy
Defects

Keywords

  • Defects
  • Organometallic
  • Photocatalytic hydrogen production
  • Stearate
  • ZnO nanonails

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

ZnO nanonails : Organometallic synthesis, self-assembly and enhanced hydrogen gas production. / Mohd Daud, Siti Nur Haslinda; Haw, Choonyian; Chiu, Weesiong; Aspanut, Zarina; Chia, Meiyuen; Khanis, Noor Hamizah; Khiew, Poisim; Abdul Hamid, Muhammad Azmi.

In: Materials Science in Semiconductor Processing, Vol. 56, 01.12.2016, p. 228-237.

Research output: Contribution to journalArticle

Mohd Daud, Siti Nur Haslinda ; Haw, Choonyian ; Chiu, Weesiong ; Aspanut, Zarina ; Chia, Meiyuen ; Khanis, Noor Hamizah ; Khiew, Poisim ; Abdul Hamid, Muhammad Azmi. / ZnO nanonails : Organometallic synthesis, self-assembly and enhanced hydrogen gas production. In: Materials Science in Semiconductor Processing. 2016 ; Vol. 56. pp. 228-237.
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