Anti-bacterial activity of indoor-light activated photocatalysts

Damian W. Synnott, Michael K. Seery, Steven J. Hinder, Georg Michlits, Suresh C. Pillai*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

49 اقتباسات (Scopus)

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 الأصليةEnglish
الصفحات (من إلى)106-111
عدد الصفحات6
دوريةApplied Catalysis B: Environmental
مستوى الصوت130-131
المعرِّفات الرقمية للأشياء
حالة النشرPublished - فبراير 7 2013
منشور خارجيًانعم

ASJC Scopus subject areas

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