Antimicrobial Materials for Water Disinfection Based on Visible-Light Photocatalysts

Wu, Pinggui

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Title:	Antimicrobial Materials for Water Disinfection Based on Visible-Light Photocatalysts
Author(s):	Wu, Pinggui
Doctoral Committee Chair(s):	Zhong, Sheng
Department / Program:	Materials Science and Engineering
Discipline:	Materials Science and Engineering
Degree Granting Institution:	University of Illinois at Urbana-Champaign
Degree:	Ph.D.
Genre:	Dissertation
Subject(s):	Engineering, Materials Science
Abstract:	The photocatalytic property of these visible-light-active photocatalysts were studied in the inactivation of bacteria and bacterial spores in water. Fast killing rate was obtained for the inactivation of E. coli, P. aeruginosa, S. aureus and B. subtilis endospores. The results of mechanistic study provided evidence of oxidative damages, and indicated that hydroxyl radicals are one of the key killing species. Atomic force microscopy and electron microscopy showed that the cell walls were attacked by photocatalytic inactivation. The potential application of the photocatalyst in water disinfection was demonstrated by flow-through tests.
Issue Date:	2007
Type:	Text
Language:	English
Description:	208 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.
URI:	http://hdl.handle.net/2142/82816
Other Identifier(s):	(MiAaPQ)AAI3301262
Date Available in IDEALS:	2015-09-25
Date Deposited:	2007