高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (10): 1880-1887.doi: 10.7503/cjcu20170171

• 高分子化学 • 上一篇    下一篇

纳米二氧化钛负载棉织物的制备及性能

杨梓薇1, 周顺利1, 王锐1, 王峰2, 姜延1, 张秀芹1()   

  1. 1. 北京服装学院, 服装材料研究开发与评价北京市重点实验室, 北京 100029
    2. 中国科学院化学研究所工程塑料重点实验室, 北京 100190
  • 收稿日期:2017-03-22 出版日期:2017-10-10 发布日期:2017-08-22
  • 作者简介:联系人简介: 张秀芹, 女, 博士, 教授, 主要从事功能纤维及其面料研究. E-mail:clyzxq@bift.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 51673003)和北京市教委创新团队项目(批准号: IDHT20140502)资助

Preparation and Characterization of Self-cleaning Cotton Fabric

YANG Ziwei1, ZHOU Shunli1, WANG Rui1, WANG Feng2, JIANG Yan1, ZHANG Xiuqin1,*()   

  1. 1. Beijing Key Laboratory of Research and Development of Garment Materials,Beijing Institute of Fashion Technology, Beijing 100029, China
    2. Key Laboratory of Engineering Plastics,Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2017-03-22 Online:2017-10-10 Published:2017-08-22
  • Contact: ZHANG Xiuqin E-mail:clyzxq@bift.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.51673003) and the Beijing Education Commission Innovation Team Project, China(No.IDHT20140502)

摘要:

以棉织物为基体, 通过紫外辐照和超声法将不同表面性质的TiO2纳米粒子负载到棉织物上, 制备自清洁材料. 利用扫描电子显微镜、 能谱分析、 接触角、 紫外-可见光谱及降解甲基橙溶液等手段分别对样品表面的结构形貌、 元素分布、 光催化活性、 紫外屏蔽性能和耐久性等进行分析. 结果表明, 棉织物经紫外辐照后, TiO2纳米粒子与其结合更牢固, 耐久性更佳; TiO2负载后的棉织物表现出超疏水性能及优异的光催化活性和紫外屏蔽性能; 与未改性的TiO2纳米粒子相比, 由聚乙烯醇(PVA)改性的TiO2纳米粒子制备的自清洁棉织物的可见光光催化活性更高, 其可见光的光催化效率是前者的3.9倍. PVA改性的纳米TiO2对290~400 nm范围内的紫外光有较好的吸收作用, 其紫外屏蔽效果更佳.

关键词: 棉织物, 聚乙烯醇改性TiO2纳米粒子, 光催化性能, 自清洁材料

Abstract:

Self-cleaning cotton fabric with bared and modified TiO2 nanoparticles on the surface was achieved by ultraviolet radiation and ultrasonic wave. The surface morphology, element distribution, photocatalytic activity, ultraviolet screening performance of original and modified cotton fabric were systematically investigated with scanning electron microscope(SEM), energy dispersive spectrometer(EDS), contact angle, ultraviolet-visible absorption spectrometry and photocatalytic degradation of methyl orange(MO). The results show that the adhesion between cotton fabric and nanoparticles has been enhanced after UV irradiation, as well as loaded stability and wash resistance. Cotton fabric with TiO2 nanoparticles on the surface shows super-hydrophobic behavior, excellent photocatalytic activity and UV screening property. Compared with the bared TiO2 nanoparticles, TiO2 nanoparticles modified by polyvinyl alcohol(PVA) shows 3.9 times higher photocatalytic activity in the visible light regime. In addition, a higher UV-Vis absorption in the region of 290—400 nm wavelength can be observed for the modified TiO2 nanoparticles, thereby exhibiting a better UV screening performance.

Key words: Cotton fabric, TiO2 nanoparticles modified by polyvinyl alcohol, Photocatalytic performance, Self-cleaning material

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