期刊
NANOMATERIALS
卷 11, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/nano11092313
关键词
nanofiber; composite; zinc oxide; particle dispersion; filtration; photocatalytic activity; antibacterial activity
类别
资金
- National Research Foundation of Korea (NRF) [2019M3E7A1113077]
- National Research Foundation of Korea [2019M3E7A1113077] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The study successfully improved the dispersion of zinc oxide nanoparticles in polyacrylonitrile fibers using a commercial silane coupling agent, enhancing the fiber's specific surface area, surface roughness, and porosity. The nanofiber filter incorporating 12 wt% ZnO NPs modified with silane exhibited high filtration efficiency, low pressure drop, excellent antibacterial activity, and efficient dye decomposition under visible light.
The incorporation of metal oxide nanoparticles (NPs) in fiber filters is an effective approach to enhance the specific surface area and surface roughness of the fiber, hence improving their efficiency for fine dust capture and other gas treatment or biological applications. Nevertheless, uneven distribution of NPs limits their practical applications. In this study, a commercial silane coupling agent (3-methacryloxypropyltrimethoxysilane) was used to improve the dispersion of zinc oxide (ZnO) NPs in thin polyacrylonitrile fibers. Scanning electron microscopy (SEM) revealed that the fibers incorporating the silane-modified NPs exhibited better distribution of NPs than those prepared with pristine ZnO NPs. The silane modification enhanced the specific surface area, surface roughness, and fiber porosity. In particular, the nanofiber filter incorporating 12 wt% ZnO NPs modified with 0.5 g silane per g of ZnO NPs maintained a filtration efficiency of 99.76% with a low pressure drop of 44 Pa, excellent antibacterial activity, and could decompose organic methylene blue dye with an efficiency of 85.11% under visible light.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据