Publication Date:
2014-05-15
Description:
A simple, handy, reusable, and inexpensive water purification unit including a one-end sealed porous amorphous-silica (a-silica) tube coated with 2 μm of porous TiO2 photocatalyst layers has been developed. Both TiO2 and a-silica layers were formed through outside vapor deposition (OVD). Raman spectrum of the porous TiO2-coated a-silica glass tube indicated that the anatase content of the TiO2 layers of the tube was estimated to be approximately 60 wt%. Developed porous TiO2-coated a-silica glass tube has been assayed for the tube filtering feature against Escherichia coli (E. coli) solution used as one of the typical bacteria size species or Q phage also used as typical virus size species and compared with the feature of porous a-silica tubes alone. The tubes removed E. coli completely from the aqueous suspension which contained 106 CFU/mL of E. coli without UV irradiation. The porous TiO2-coated a-silica glass tube with UV-C lamps successfully reduced the Q phage amount in the suspension from 109 to 103 PFU/mL.
Print ISSN:
1110-662X
Electronic ISSN:
1687-529X
Topics:
Electrical Engineering, Measurement and Control Technology
,
Energy, Environment Protection, Nuclear Power Engineering
