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- Title
Hierarchical mesopore wood filter membranes decorated with silver nanoparticles for straight-forward water purification.
- Authors
Chen, Qiaoling; Fei, Peng; Hu, Yonghua
- Abstract
Woods with a three-dimensional mesoporous structure comprise numerous oxygen-containing functional groups, which can be used to reduce metal nanoparticles in situ. Here, we report a new wood filter membrane which was combined with silver nanoparticles (Ag NPs) for water filtration. The wood blocks were immersed in silver nitrate solution to compose the Ag NP/wood membrane and were directly used for filtration sterilisation. In addition, the bacteriostatic effect of the Nano-silver wood filter membrane was measured by filtering the river water. In 5 L of the river water, after being filtered through three wood membranes at the same time, the bacteria and fungi were killed. Meanwhile, the bacteriostatic test corroborated that the diameters of the bacteriostatic circles of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Candida albicans were all larger than 1 cm. Therefore, Ag NP wood membranes possess good filtration and antibacterial properties.
- Subjects
WATER purification; SILVER nanoparticles; MEMBRANE filters; WATER filtration; WOOD; WOOD preservatives; POROUS metals; CANDIDA albicans
- Publication
Cellulose, 2019, Vol 26, Issue 13/14, p8037
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-019-02652-1