The influences of ZnO nanoparticles on the phenol red aqueous solutions

Thian Khoon Tan, P. S. Khiew, W. S. Chiu, Shahidan Radiman, Roslan Abd. Shukor

Research output: Contribution to journalArticle

Abstract

In this study, ZnO nanoparticles have been used in the determination of the photocatalytic degradation of aqueous solution Phenol Red (PR) under UV light irradiation. This photocatalyst was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), specific surface area analysis (BET) and UV-visible spectroscopy. X-ray diffractometry revealed that the ZnO nanoparticles possess the characteristic crystalline phase features. All observed peaks can be indexed to the pure hexagonal wurtzite crystal structures, with the space group of P63mc. No other impurities diffraction peak is observed. In addition, TEM measurement shows that most of the nanoparticles are spherical and rod-like in shape and fairly monodispersed. It was found that in the presence of the ZnO nanophotocatalyst material, significant enhancement on the photodecomposition efficiency of the PR can be achieved. In addition, the photodegradation increases with the photocatalyst loading. The BET measurement revealed that the surface area of the ZnO nanomaterials was 11.9 m 2/g. The effect of some parameters on the photodegradation efficiency such as initial PR concentration and pH were also determined.

Original languageEnglish
Pages (from-to)125-130
Number of pages6
JournalMalaysian Journal of Microscopy
Volume6
Issue number1
Publication statusPublished - 2010

Fingerprint

Phenolsulfonphthalein
phenols
Nanoparticles
Phenols
Photolysis
Photodegradation
Photocatalysts
aqueous solutions
Transmission Electron Microscopy
nanoparticles
Transmission electron microscopy
photodecomposition
transmission electron microscopy
Nanostructures
Ultraviolet Rays
diffraction
Nanostructured materials
X-Ray Diffraction
Specific surface area
Ultraviolet radiation

Keywords

  • Heterogeneous photocatalyst
  • Nanostructures
  • Phenol red
  • Zinc oxide

ASJC Scopus subject areas

  • Histology
  • Pathology and Forensic Medicine
  • Instrumentation

Cite this

The influences of ZnO nanoparticles on the phenol red aqueous solutions. / Tan, Thian Khoon; Khiew, P. S.; Chiu, W. S.; Radiman, Shahidan; Abd. Shukor, Roslan.

In: Malaysian Journal of Microscopy, Vol. 6, No. 1, 2010, p. 125-130.

Research output: Contribution to journalArticle

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