Synthesis, Optical, Photocatalytic and Bactericidal Properties of Nanocrystalline ZnO Powders by Precipitation Method

Sumetha Suwanboon; Pongsaton Amornpitoksuk; Phuwadol Bangrak

doi:10.4028/www.scientific.net/AMR.970.293

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 970Synthesis, Optical, Photocatalytic and...

Synthesis, Optical, Photocatalytic and Bactericidal Properties of Nanocrystalline ZnO Powders by Precipitation Method

Abstract:

Nanocrystalline ZnO powders were synthesized by precipitation method. The n-propylamine was used as capping agent. The crystallite size of ZnO powders depended on the n-propylamine concentration. ZnO powders exhibited as agglomerated spherical shape. The optical band gap of ZnO powders were varied in a range of 3.204-3.219 eV. The photocatalytic efficiency of ZnO powders for degradation of methylene blue (MB) increased as a function of UV irradiation time and the photocatalytic efficiency was over 80% after UV irradiating for 1 h. The highest photocatalytic efficiency was 96% after UV irradiating for 1 h obtained from nanocrystalline ZnO powders modified with 0.025 mol of n-propylamine (R = 1). Nanocrystalline ZnO powders caused more damage to Staphylococcus aureus (S. aureus) than Escherichia coli (E. coli).

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Periodical:

Advanced Materials Research (Volume 970)

Pages:

293-296

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.970.293

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Online since:

June 2014

Authors:

Sumetha Suwanboon*, Pongsaton Amornpitoksuk, Phuwadol Bangrak

Keywords:

Antibacterial Activity, N-Propylamine, Photocatalytic Property, Precipitation, ZNO

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