The photodegradation of organic compounds by ZnO nanopowder

T. K. Tan, P. S. Khiew, W. S. Chiu, Shahidan Radiman, Roslan Abd. Shukor, N. M. Huang, H. N. Lim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The commercialized ZnO nanopowder has been employed in this study to investigate the photocatalytic degradation of two organic compounds, Methylene Blue (MB) and Phenol Red (PR) in an aqueous suspension of ZnO nanoparticles under UV light irradiation. This study has considered ZnO as the photocatalyst because it has been reported as a suitable substitute for TiO2 in certain application. For the characterization of the ZnO photocatalyst, X-ray diffraction (XRD), transmission electron microscopy (TEM), specific surface area analysis (BET), and UV-visible spectroscopy were exploited. X-ray diffractometry result for the ZnO nanoparticles exhibit normal crystalline phase features. All observed peaks can be indexed to the pure hexagonal wurtzite crystal structures, with the space group of P63mc. From the XRD pattern, no diffraction peaks from other impurities have been observed. In addition, TEM measurement shows that most of the nanoparticles are spherical and rod-like in shape and fairly monodispersed. A significant degradation of the organic compounds were observed in the presence of the catalyst without the irradiation of the UV light and the degradation increases significantly when irradiated with the UV light for a certain period of time. Besides, for the same period of irradiation, the photodegradation of the organic compounds was increased as the photocatalyst loading increases. The BET measurement for ZnO was 11.9 m2/g. The effect of some parameters such as initial concentration of organic compounds and photocatalyst loading were also determined.

Original languageEnglish
Title of host publicationAdvanced Materials Research
Pages547-557
Number of pages11
Volume895
DOIs
Publication statusPublished - 2014
Event4th International Conference on Solid State Science and Technology, ICSSST 2012 - Melaka
Duration: 18 Dec 201320 Dec 2013

Publication series

NameAdvanced Materials Research
Volume895
ISSN (Print)10226680

Other

Other4th International Conference on Solid State Science and Technology, ICSSST 2012
CityMelaka
Period18/12/1320/12/13

Fingerprint

Photodegradation
Photocatalysts
Organic compounds
Ultraviolet radiation
Irradiation
Nanoparticles
Degradation
Transmission electron microscopy
X ray diffraction
Specific surface area
X ray diffraction analysis
Diffraction patterns
Phenols
Diffraction
Crystal structure
Spectroscopy
Impurities
Crystalline materials
Catalysts

Keywords

  • Heterogeneous photocatalyst
  • Methylene blue
  • Nanostructures
  • Phenol red
  • Zinc oxide

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Tan, T. K., Khiew, P. S., Chiu, W. S., Radiman, S., Abd. Shukor, R., Huang, N. M., & Lim, H. N. (2014). The photodegradation of organic compounds by ZnO nanopowder. In Advanced Materials Research (Vol. 895, pp. 547-557). (Advanced Materials Research; Vol. 895). https://doi.org/10.4028/www.scientific.net/AMR.895.547

The photodegradation of organic compounds by ZnO nanopowder. / Tan, T. K.; Khiew, P. S.; Chiu, W. S.; Radiman, Shahidan; Abd. Shukor, Roslan; Huang, N. M.; Lim, H. N.

Advanced Materials Research. Vol. 895 2014. p. 547-557 (Advanced Materials Research; Vol. 895).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tan, TK, Khiew, PS, Chiu, WS, Radiman, S, Abd. Shukor, R, Huang, NM & Lim, HN 2014, The photodegradation of organic compounds by ZnO nanopowder. in Advanced Materials Research. vol. 895, Advanced Materials Research, vol. 895, pp. 547-557, 4th International Conference on Solid State Science and Technology, ICSSST 2012, Melaka, 18/12/13. https://doi.org/10.4028/www.scientific.net/AMR.895.547
Tan TK, Khiew PS, Chiu WS, Radiman S, Abd. Shukor R, Huang NM et al. The photodegradation of organic compounds by ZnO nanopowder. In Advanced Materials Research. Vol. 895. 2014. p. 547-557. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.895.547
Tan, T. K. ; Khiew, P. S. ; Chiu, W. S. ; Radiman, Shahidan ; Abd. Shukor, Roslan ; Huang, N. M. ; Lim, H. N. / The photodegradation of organic compounds by ZnO nanopowder. Advanced Materials Research. Vol. 895 2014. pp. 547-557 (Advanced Materials Research).
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