Removal of bacterial pathogen from wastewater using Al filter with Ag-containing nanocomposite film by in situ dispersion involving polyol process.
In this study, a filter with deposited Ag/Al(OH)(3) mesoporous nanocomposite film was fabricated to remove bacterial pathogens from wastewater. Mesoporous Al(OH)(3) film was generated on the Al foam body by alkali surface modification, followed by immersion in a polyol solution for 4h at an elevated temperature in order to deposit silver nanoparticles (Ag NPs). The Al(OH)(3) porous matrix showed a significant increase in specific surface area due to the large size of the voids between flakes, which reached several tens of nanometers. After in situ three-dimensional deposition of Ag NPs by a polyol process, the Ag NPs were nucleated and grown at the surface of the mesoporous Al(OH)(3) film. The filter with Ag/Al(OH)(3) mesoporous nanocomposite film showed a good bacterial pathogen removal rate within a very short contact time compared to the untreated Al foam filter. Filters with deposited Ag/Al(OH)(3) mesoporous nanocomposite film have great potential for application as antimicrobial filters for tap water purification, wastewater treatment, and other bio-related applications.
R&D Institute, Alutec Co., Chungcheongbuk-do 373-841, Republic of Korea.
Young Ik
YI
Seo
Ki Ho
KH
Hong
Se Hoon
SH
Kim
Duk
D
Chang
Kyu Hwan
KH
Lee
Young Do
YD
Kim
D000535:Aluminum / Q000737:chemistry*; D004926:Escherichia coli / Q000302:isolation & purification*; D005374:Filtration / Q000295:instrumentation / Q000379:methods; D053761:Nanocomposites / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000295:instrumentation / Q000379:methods; D014873:Water Pollutants / Q000302:isolation & purification*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods
D014873:Water Pollutants; D012834:Silver; D000535:Aluminum