Multifunctional Polyacrylonitrile-ZnO/Ag Electrospun Fiber Membranes: Various ZnO Morphologies for Photocatalytic, UV-shielding, and Antibacterial Applications

• Main Authors: Yen Yu-Chen, 陳彥友
• Other Authors: 郭霽慶
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/83814956739342519329

碩士 === 國立臺北科技大學 === 有機高分子研究所 === 102 === In this study, we firstly prepared polyacrylonitrile (PAN)-ZnO/Ag composite ES fiber membranes consisting of pineal-type, flower-type, and sea-urchin-type ZnO morphologies by using ES technique, hydrothermal synthesis, and Ag reduction. The effects of the various ZnO structures on the fiber morphologies, photocatalytic efficiency, UV protection, and mechanical properties as well as how the additive Ag enhanced antimicrobial activity. Our results indicated that the photocatalytic and UV-protection efficiency of PAN-ZnO/Ag ES fiber membranes can be altered by varying the morphology of ZnO. The various ZnO architectures exhibited differences in photocatalytic activity and UV-shielding efficiency, and were ranked as follows: sea-urchin > flower- > pineal-type. Sea-urchin-type ZnO features higher surface-to-volume ratio than other architectures do because of its distinctive structure, thus yielding higher performance. The present study demonstrated that self-standing PAN-ZnO/Ag composite fiber membranes, especially those with the sea-urchin-type ZnO structure, can be applied in multifunctional textiles such as water purification filters and antibacterial and UV-shielding clothes.