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首页> 外文期刊>Applied Surface Science >Low Temperature Deposition Of Tio_2 Thin Films On Polyvinyl Alcohol Fibers With Photocatalytical And Antibacterial Activities
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Low Temperature Deposition Of Tio_2 Thin Films On Polyvinyl Alcohol Fibers With Photocatalytical And Antibacterial Activities

机译：聚乙烯醇纤维上具有光催化和抗菌活性的Tio_2薄膜的低温沉积

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摘要

Fine particles of photoactive anatase-type TiO_2 coated polyvinyl alcohol (PVA) fibers (TiO_2/PVA) were prepared successfully via a simple dip-coating method. Tetrabutyl orthotitanate (TBOT) was hydrolyzed in presence of hydrolysis control agent tetrabutylammonium hydroxide (TBA)OH and the TiO_2 fine particles were crystallized under microwave (MW) irradiation. The X-ray diffraction (XRD) and selected-area electron diffraction (SAED) analyses indicated that the fine particles obtained with MW irradiation have much higher crystallinity with a single phase anatase compared with the non-MW-treated solution. The continuous layers of titania were found on PVA fibers by the scanning electron microscopy (SEM) analysis. The fibers with anatase coatings showed high photocatalytic property on the photodegradation of methylene blue (MB) and high antibacterial activity.
机译：通过简单的浸涂法成功地制备了光敏锐钛矿型TiO_2包覆聚乙烯醇（PVA）纤维（TiO_2 / PVA）的细颗粒。在水解控制剂氢氧化四丁基铵（TBA）OH的存在下，将原钛酸四丁酯（TBOT）水解，并在微波（MW）照射下使TiO_2微粒结晶。 X射线衍射（XRD）和选择区域电子衍射（SAED）分析表明，与未经MW处理的溶液相比，通过MW照射获得的细颗粒具有单相锐钛矿的结晶度高得多。通过扫描电子显微镜（SEM）分析，在PVA纤维上发现了二氧化钛的连续层。具有锐钛矿型涂层的纤维对亚甲基蓝（MB）的光降解表现出高的光催化性能和高的抗菌活性。

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