Open AccessAntibacterial PVA membranes containing TiO 2 /N‐halamine nanoparticles
Author(s) -
Ma Wei,
Li Lin,
Li Jing,
Ren Xuehong,
Gu ZhiGuo,
Huang TungShi
Publication year - 2018
Publication title -
advances in polymer technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 44
eISSN - 1098-2329
pISSN - 0730-6679
DOI - 10.1002/adv.21798
Subject(s) - membrane , materials science , polyvinyl alcohol , composite number , sodium hypochlorite , chemical engineering , nanoparticle , nuclear chemistry , organic chemistry , composite material , nanotechnology , chemistry , engineering , biochemistry
Inorganic–organic composites have received considerable attention due to their combined properties. In this study, a N‐halamine precursor poly[5,5‐dimethyl‐3‐(3′‐triethoxysilylpropyl)‐hydantoin] ( PSPH ) was synthesized and used for the production of inorganic–organic hybrid particles after reacting with nano‐TiO 2 by a sol–gel process. The hybrid particles were characterized by FT ‐ IR , XRD , and TGA ‐ DTG . After chlorinated in the dilute sodium hypochlorite solution, antibacterial Cl‐ PSPH ‐TiO 2 nanoparticles ( NPS ) could be obtained and used for production of polyvinyl alcohol (PVA) composite membranes. The synthesized PSPH ‐TiO 2 / PVA composite membranes were characterized by SEM , FT ‐ IR , XRD , and TGA ‐ DTG . Meanwhile, antibacterial property, UV light stability, mechanical properties, and storage stability of the composite membranes were tested. The antibacterial composite membranes with Cl‐ PSPH ‐TiO 2 could inactivate 99.97% of Staphylococcus aureus (3.03 logs) and 100% of Escherichia coli O157:H7 (6.12 logs) within 30 min. The antibacterial composite membranes also showed good UV light stability, regeneration ability, and excellent storage stability.