(001)-Faceted hexagonal ZnO nanoplate thin film synthesis and the heterogeneous catalytic reduction of 4-nitrophenol characterization

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Abstract

Abstract Efficient approach to synthesize (001)-faceted ZnO nanoplates thin film on an ITO substrate is reported via a conventional hydrothermal method. The field emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis revealed that the surface structure and chemistry of the ZnO nanoplate thin film are strongly influenced by the ratio between the Zinc presursor and hexamethylenetetramine (HMT) concentrations in the reaction. The catalytic properties of the (001) faceted hexagonal ZnO nanoplate was examined in the conversion of 4-nitrophenol to 4-aminophenol in the absence of reducing agent under ultrasonication at room-temperature. In typical process, it was found that the conversion rate as high as 4.483 × 10<sup>-2</sup> mol min<sup>-1</sup> can be obtained from this system. Highly-reactive (001) faceted nanoplate with high oxygen vacancy is assumed as the driving force for such efficiency catalytic properties. The synthetic procedure and characterization of ZnO nanoplates will be discussed in detail.

Original languageEnglish
Article number34898
Pages (from-to)299-304
Number of pages6
JournalJournal of Alloys and Compounds
Volume650
DOIs
Publication statusPublished - 25 Nov 2015

Fingerprint

Methenamine
Thin films
Reducing Agents
Reducing agents
Oxygen vacancies
Surface chemistry
Surface structure
Field emission
Zinc
X ray photoelectron spectroscopy
Scanning electron microscopy
Substrates
Temperature
4-nitrophenol
Nitrophenols
4-aminophenol

Keywords

  • (001) Facet
  • 4-Nitrophenol
  • Hydrothermal
  • Photocatalytic
  • ZnO nanoplates

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

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title = "(001)-Faceted hexagonal ZnO nanoplate thin film synthesis and the heterogeneous catalytic reduction of 4-nitrophenol characterization",
abstract = "Abstract Efficient approach to synthesize (001)-faceted ZnO nanoplates thin film on an ITO substrate is reported via a conventional hydrothermal method. The field emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis revealed that the surface structure and chemistry of the ZnO nanoplate thin film are strongly influenced by the ratio between the Zinc presursor and hexamethylenetetramine (HMT) concentrations in the reaction. The catalytic properties of the (001) faceted hexagonal ZnO nanoplate was examined in the conversion of 4-nitrophenol to 4-aminophenol in the absence of reducing agent under ultrasonication at room-temperature. In typical process, it was found that the conversion rate as high as 4.483 × 10-2 mol min-1 can be obtained from this system. Highly-reactive (001) faceted nanoplate with high oxygen vacancy is assumed as the driving force for such efficiency catalytic properties. The synthetic procedure and characterization of ZnO nanoplates will be discussed in detail.",
keywords = "(001) Facet, 4-Nitrophenol, Hydrothermal, Photocatalytic, ZnO nanoplates",
author = "Tan, {Sin Tee} and Akrajas, {Ali Umar} and {Mat Salleh}, Muhamad",
year = "2015",
month = "11",
day = "25",
doi = "10.1016/j.jallcom.2015.06.280",
language = "English",
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journal = "Journal of Alloys and Compounds",
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T1 - (001)-Faceted hexagonal ZnO nanoplate thin film synthesis and the heterogeneous catalytic reduction of 4-nitrophenol characterization

AU - Tan, Sin Tee

AU - Akrajas, Ali Umar

AU - Mat Salleh, Muhamad

PY - 2015/11/25

Y1 - 2015/11/25

N2 - Abstract Efficient approach to synthesize (001)-faceted ZnO nanoplates thin film on an ITO substrate is reported via a conventional hydrothermal method. The field emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis revealed that the surface structure and chemistry of the ZnO nanoplate thin film are strongly influenced by the ratio between the Zinc presursor and hexamethylenetetramine (HMT) concentrations in the reaction. The catalytic properties of the (001) faceted hexagonal ZnO nanoplate was examined in the conversion of 4-nitrophenol to 4-aminophenol in the absence of reducing agent under ultrasonication at room-temperature. In typical process, it was found that the conversion rate as high as 4.483 × 10-2 mol min-1 can be obtained from this system. Highly-reactive (001) faceted nanoplate with high oxygen vacancy is assumed as the driving force for such efficiency catalytic properties. The synthetic procedure and characterization of ZnO nanoplates will be discussed in detail.

AB - Abstract Efficient approach to synthesize (001)-faceted ZnO nanoplates thin film on an ITO substrate is reported via a conventional hydrothermal method. The field emission scanning electron microscopy and X-ray photoelectron spectroscopy analysis revealed that the surface structure and chemistry of the ZnO nanoplate thin film are strongly influenced by the ratio between the Zinc presursor and hexamethylenetetramine (HMT) concentrations in the reaction. The catalytic properties of the (001) faceted hexagonal ZnO nanoplate was examined in the conversion of 4-nitrophenol to 4-aminophenol in the absence of reducing agent under ultrasonication at room-temperature. In typical process, it was found that the conversion rate as high as 4.483 × 10-2 mol min-1 can be obtained from this system. Highly-reactive (001) faceted nanoplate with high oxygen vacancy is assumed as the driving force for such efficiency catalytic properties. The synthetic procedure and characterization of ZnO nanoplates will be discussed in detail.

KW - (001) Facet

KW - 4-Nitrophenol

KW - Hydrothermal

KW - Photocatalytic

KW - ZnO nanoplates

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