期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 115, 期 14, 页码 6825-6832出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp200425u
关键词
-
资金
- Defense Threat Reduction Agency [HDTRA1-08-1-0005]
A series of organic chemicals capable of generating radicals under :photoexposure, such as 2-anthraquinone sulfonate (2-AQS), 2,6-AQS, and 2,7-AQS, have been layer-by-layer (LBL) assembled onto the hydrophilic poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofiber composite membranes. The composite nanofiber membranes assembled with AQS chemicals have demonstrated excellent photoinduced self-cleaning properties by decolorizing colorants and killing bacteria. Scanning electron microscopy (SEM) images showed that the nanofibrous membranes maintained the well-defined fiber morphology and large specific surface area after LBL assembly. The effects of AQS types, the compositions of PVA-co-PE, as well as the number of AQS layers on the decolorization property were studied. The PVA-co-PE (44% ethylene unit) nanofiber membrane assembled with one layer of 2,6-AQS was able to provide expected photoinduced self-cleaning properties, and the system could be a promising candidate of self-cleaning protective clothing materials.
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