کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
28149 44061 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bactericidal activity of nitrogen-doped metal oxide nanocatalysts and the influence of bacterial extracellular polymeric substances (EPS)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Bactericidal activity of nitrogen-doped metal oxide nanocatalysts and the influence of bacterial extracellular polymeric substances (EPS)
چکیده انگلیسی

The antibacterial effect of nitrogen-doped TiO2 and ZrO2 were tested on Escherichia coli and biofilm heterotrophic bacteria under solar light illumination. The rates of photocatalytic inactivation for biofilm bacteria with soluble extracellular polymeric substances (EPS) stripped off and E. coli bacteria were found to be higher than those of the biofilm bacteria with intact EPS. Measurements of both bacterial count and cellular components (carbohydrate and protein) revealed that EPS play an important role in controlling the kinetics of solar-induced photocatalysis. TiO2−xNx and ZrO2−xNx doped with ethylenediamine as the nitrogen source showed improved photoactivity compared with TiO2−xNx using ethanolamine as the nitrogen source.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 190, Issue 1, 5 July 2007, Pages 94–100
نویسندگان
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