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논문 기본 정보

자료유형
학술저널
저자정보
Baek, Doo-Hyun (Department of Biosystems and Biomaterials Science and Engineering, Seoul National University) Ki, Chang-Seok (Department of Biosystems and Biomaterials Science and Engineering, Seoul National University) Um, In-Chul (Department of Natural Fiber Sciences, Kyungpook National University) Park, Young-Hwan (Department of Biosystems and Biomaterials Science and Engineering, Seoul National University)
저널정보
한국섬유공학회 Fibers and Polymers Fibers and polymers 제8권 제3호
발행연도
2007.1
수록면
271 - 277 (7page)

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In this study, electro spun wool keratose (WK)/silk fibroin (SF) blend nanofiber was prepared and evaluated as a heavy metal ion adsorbent which can be used in water purification field. The WK, which was a soluble fraction of oxidized wool keratin fiber. was blended with SF in formic acid. The electrospinnability was greatly improved with an increase of SF content. The structure and properties of WK/SF blend nanofibers were investigated by SEM, FTIR, DMTA and tensile test. Among various WK/SF blend ratios, 50/50 blend nanofiber showed an excellent mechanical property. It might be due to some physical interaction between SF and WK molecules although FTIR result did not show any evidence of molecular miscibility. As a result of metal ion adsorption test, WK/SF blend nanofiber mats exhibited high $Cu^{2+}$ adsorption capacity compared with ordinary wool sliver at pH 8.5. It might be due to large specific surface area of nanofiber mat as well as numerous functional groups of WK. Consequently, the WK/SF blend nanofiber mats can be a promising candidate as metal ion adsorption filter.

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