纳米二氧化钛负载棉织物的制备及性能

doi:10.7503/cjcu20170171

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

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. 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 Xiuqin^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/Abstract

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 TiO₂nanoparticles 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

中图分类号:

O636
O643

TrendMD:

杨梓薇, 周顺利, 王锐, 王峰, 姜延, 张秀芹. 纳米二氧化钛负载棉织物的制备及性能. 高等学校化学学报, 2017, 38(10): 1880.

YANG Ziwei, ZHOU Shunli, WANG Rui, WANG Feng, JIANG Yan, ZHANG Xiuqin. Preparation and Characterization of Self-cleaning Cotton Fabric^†. Chem. J. Chinese Universities, 2017, 38(10): 1880.

图/表 9

Fig.1 XRD patterns of pristine TiO2(a) and M-TiO2(b) nanoparticles

Fig.2 FTIR spectra of pristine TiO2(a) and M-TiO2(b) nanoparticles

Fig.3 SEM(A—C) and EDS(D—F) images of cotton fabric without UV irradiation loading TiO2(A, D), cotton fabric by UV irradiation loading TiO2 (TiO2-cotton)(B, E) and M-TiO2(M-TiO2-cotton)(C, F)

Fig.4 SEM images of samples before(A—C) and after(D—F) washing(A, D) Cotton fabric without UV irradiation loading TiO2; (B, E) cotton fabric by UV irradiation loading TiO2(TiO2-cotton); (C, F) M-TiO2(M-TiO2-cotton).

Fig.5 Variation of MO concentration during four cycles of cotton fabric by UV irradiation loading TiO2(■) and M-TiO2(●), cotton fabric without UV irradiation loading TiO2(▲) and M-TiO2(▼)

Fig.6 Surface water contact angle of pure cotton(A), TiO2-cotton(B), M-TiO2-cotton(C) and the model of sample surface structure(D)Insets are TEM images of TiO2 and M-TiO2.

Fig.7 Variation of MO concentration under visible lighta. Pure cotton; b. TiO2-cotton; c. M-TiO2-cotton.

Fig.8 Linear regression of photocatalytic degradation rate and time of TiO2-cotton(a) and M-TiO2-cotton(b)

Fig.9 UV-Vis diffuse reflectance spectra of pure cotton(a), TiO2-cotton(b) and M-TiO2-cotton(c)

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纳米二氧化钛负载棉织物的制备及性能

Preparation and Characterization of Self-cleaning Cotton Fabric^†

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纳米二氧化钛负载棉织物的制备及性能

Preparation and Characterization of Self-cleaning Cotton Fabric†

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Preparation and Characterization of Self-cleaning Cotton Fabric^†