Synthesis of antibacterial film CTS/PVP/TiO2/Ag for drinking water system
- Release time:2024-08-09
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Affiliation of Author(s):
化学与化工学院
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Journal:
Carbohydrate Polymers
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Key Words:
中文关键字：抑菌；壳聚糖；银，英文关键字：Antibacterial film；TiO2；Silver；Drinking water；Chit
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Abstract:
A CTS/PVP/TiO2/Ag functional film was prepared as an antibacterial composite used in storing drinking water. The orthogonal experiment showed that the optimal conditions for preparing membranes with best antibacterial activity and tensile strength are c(AgNO3) = 0.08%, c(TiO2) = 0.20%, c(CTS) = 2.25%, and c(PVP) = 3.00%. The FT-IR spectrum implies that hydrogen bands are formed between acetyl in PVP and hydroxyl in CTS molecule, and NH and OH of CTS have some interactions with sliver nano-particles
(nano-Ags) which were reduced in situ. The SEM images show that the TiO2 particles are displayed on the surface and embedded in the film. And nano-Ags are further proved through XRD and SEM images. The DSC curves show that the film has a favorable compatibility and heat stability. In application study, it is proved that this film has sustainable antibacterial activity and is safe in use.
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Note:
张良
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Co-author:
XueBai,HuaTian,LvlingZhong
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First Author:
zhangliang
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Indexed by:
Journal paper
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Volume:
卷：89
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Issue:
期：1
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Page Number:
页：1060
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Translation or Not:
no
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Date of Publication:
2012-03-01
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