ملخص
Nanocrystalline photocatalysts, prepared under ambient conditions using a microwave assisted synthesis, show indoor light photocatalytic activity for the degradation of Staphylococcus aureus and Escherichia coli. The zinc sulphide (ZnS) nanomaterials, prepared by a microwave assisted synthesis, are shown to be cubic blende structure with an average crystallite size of 4-6. nm. The anti-bacterial activity of these nanomaterials is investigated under irradiation from a 60. W light bulb and photocatalytic activity is revealed to be due to the defects present in the crystal structure. The ZnS shows anti-bacterial action as both a bacteriostatic and bacteriocidal (88% reduction in the amount of bacteria in 5. h) material and the methods of bacterial degradation on the ZnS is discussed. The anti-bacterial actions of these materials were also compared with commercial ZnS and Evonik-Degussa P-25. A detailed mechanism for the light absorption in the visible light region of the microwave prepared ZnS is proposed based on the luminescence spectroscopy.
اللغة الأصلية | English |
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الصفحات (من إلى) | 106-111 |
عدد الصفحات | 6 |
دورية | Applied Catalysis B: Environmental |
مستوى الصوت | 130-131 |
المعرِّفات الرقمية للأشياء | |
حالة النشر | Published - فبراير 7 2013 |
منشور خارجيًا | نعم |
ASJC Scopus subject areas
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