Pertumbuhan dan Penambahbaikan Nanokomposit Ag-ZnO untuk Aktiviti Fotomangkin

Translated title of the contribution: Growth and improvement of Ag-ZnO nanocomposites for photocatalytic activity

M. T M Ayob, H. M K Mohd, Irman Abdul Rahman, Faizal K.P. Kunchi Mohamed, Norsyahidah Mohd Hidzir, Shahidan Radiman

Research output: Contribution to journalArticle

Abstract

We report the research results of Ag-ZnO nanocomposites with different weight ratio of Ag:ZnO (0:10, 7:10 & 25:10) which were prepared by sonochemical method. The photocatalytic study of Ag-ZnO nanocomposites showed enhanced photocatalytic efficiency of methylene blue aqueous solution photodegradation compared with the pure ZnO nanoparticle under visible light irradiation. The Ag-ZnO at a ratio of 7:10 displayed the best photocatalytic activity and reached 94% degradation rate for 80 min degradation time, followed by 86% for pure ZnO by the same method. The morphological, structural, optical properties and crystallinity of the Ag-ZnO nanocomposites were also elucidated with the data obtained from transmission electron microscopy, ultraviolet-visible spectroscopy and X-ray diffractometer analyses, respectively. The results showed that by adding particles of Ag to ZnO increases the absorbance of ZnO in the visible region and enhances the photoinduced charge separation rate for better wastewater treatment.

Original languageMalay
Pages (from-to)1265-1273
Number of pages9
JournalSains Malaysiana
Volume45
Issue number8
Publication statusPublished - 1 Aug 2016

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Nanocomposites
Degradation
Methylene Blue
Ultraviolet visible spectroscopy
Photodegradation
Diffractometers
Wastewater treatment
Optical properties
Irradiation
Nanoparticles
Transmission electron microscopy
X rays

ASJC Scopus subject areas

  • General

Cite this

Pertumbuhan dan Penambahbaikan Nanokomposit Ag-ZnO untuk Aktiviti Fotomangkin. / Ayob, M. T M; Mohd, H. M K; Abdul Rahman, Irman; K.P. Kunchi Mohamed, Faizal; Mohd Hidzir, Norsyahidah; Radiman, Shahidan.

In: Sains Malaysiana, Vol. 45, No. 8, 01.08.2016, p. 1265-1273.

Research output: Contribution to journalArticle

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AB - We report the research results of Ag-ZnO nanocomposites with different weight ratio of Ag:ZnO (0:10, 7:10 & 25:10) which were prepared by sonochemical method. The photocatalytic study of Ag-ZnO nanocomposites showed enhanced photocatalytic efficiency of methylene blue aqueous solution photodegradation compared with the pure ZnO nanoparticle under visible light irradiation. The Ag-ZnO at a ratio of 7:10 displayed the best photocatalytic activity and reached 94% degradation rate for 80 min degradation time, followed by 86% for pure ZnO by the same method. The morphological, structural, optical properties and crystallinity of the Ag-ZnO nanocomposites were also elucidated with the data obtained from transmission electron microscopy, ultraviolet-visible spectroscopy and X-ray diffractometer analyses, respectively. The results showed that by adding particles of Ag to ZnO increases the absorbance of ZnO in the visible region and enhances the photoinduced charge separation rate for better wastewater treatment.

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