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用于自清洁表面的掺有超细SiO/TiO复合材料的聚甲基丙烯酸甲酯薄膜的结构和光学表征

Structural and Optical Characterizations of Polymethyl Methacrylate Films with the Incorporation of Ultrafine SiO/TiO Composites Utilized as Self-Cleaning Surfaces.

作者信息

Songpanit Maneerat, Boonyarattanakalin Kanokthip, Limwichean Saksorn, Lertvanithphol Tossaporn, Horprathum Mati, Pecharapa Wisanu, Mekprasart Wanichaya

机构信息

College of Materials Innovation and Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.

National Electronics and Computer Technology Center (NECTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand.

出版信息

Polymers (Basel). 2023 Jul 25;15(15):3162. doi: 10.3390/polym15153162.

DOI:10.3390/polym15153162
PMID:37571056
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10421215/
Abstract

The structural and optical characterizations of nanocomposite films of polymethyl methacrylate (PMMA) and SiO/TiO composites prepared via the spin-coating technique were investigated using different SiO:TiO ratios. The SiO/TiO nanocomposites were synthesized using the sonochemical process with Si:Ti precursor ratios of 1:0.1, 1:0.5, 1:1, 1:2, 1:4, and 0:1. All characterizations of ultrafine SiO/TiO particles were loaded at 1 wt.% in a PMMA matrix for the fabrication of transparent SiO/TiO/PMMA composite films. The phase structure and morphology of SiO/TiO/PMMA composite films were monitored using X-ray diffraction, optical microscopy, and field-emission scanning electron microscopy. A surface roughness analysis of SiO/TiO/PMMA nanocomposite films was conducted using atomic force microscopy. For optical characterization, transmission properties with different incident angles of SiO/TiO/PMMA composite films were analyzed with UV-vis spectrophotometry. The water contact angles of SiO/TiO/PMMA composite films were analyzed to identify hydrophilic properties on film surfaces. Photocatalytic reactions in SiOTiO composite films under UV irradiation were evaluated using rhodamine B dye degradation. The optimal condition of SiO/TiO/PMMA nanocomposite films was obtained at a 1:1 SiO:TiO ratio in self-cleaning applications, resulting from good particle dispersion and the presence of the TiO phase in the composite.

摘要

采用不同的SiO:TiO比例，对通过旋涂技术制备的聚甲基丙烯酸甲酯（PMMA）与SiO/TiO复合材料的纳米复合薄膜进行了结构和光学表征。采用超声化学法合成了SiO/TiO纳米复合材料，Si:Ti前驱体比例为1:0.1、1:0.5、1:1、1:2、1:4和0:1。将所有超细SiO/TiO颗粒以1 wt.%的比例负载在PMMA基体中，用于制备透明的SiO/TiO/PMMA复合薄膜。使用X射线衍射、光学显微镜和场发射扫描电子显微镜监测SiO/TiO/PMMA复合薄膜的相结构和形态。使用原子力显微镜对SiO/TiO/PMMA纳米复合薄膜进行表面粗糙度分析。对于光学表征，使用紫外可见分光光度法分析了SiO/TiO/PMMA复合薄膜在不同入射角下的透射特性。分析了SiO/TiO/PMMA复合薄膜的水接触角，以确定薄膜表面的亲水性。使用罗丹明B染料降解评估了紫外光照射下SiOTiO复合薄膜中的光催化反应。在自清洁应用中，SiO/TiO/PMMA纳米复合薄膜在SiO:TiO比例为1:1时获得了最佳条件，这是由于颗粒分散良好以及复合材料中存在TiO相。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/a2d566992d49/polymers-15-03162-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/d9bb7203f4d1/polymers-15-03162-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/c41c7ddbfbfc/polymers-15-03162-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/357abf5fd4eb/polymers-15-03162-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/ccea297f24cd/polymers-15-03162-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/4e4d1838c0df/polymers-15-03162-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/199f03cf355d/polymers-15-03162-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/80a232d6e77a/polymers-15-03162-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/046022d05fdb/polymers-15-03162-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/a2d566992d49/polymers-15-03162-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/d9bb7203f4d1/polymers-15-03162-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/c41c7ddbfbfc/polymers-15-03162-g002a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/357abf5fd4eb/polymers-15-03162-g003a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/ccea297f24cd/polymers-15-03162-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/4e4d1838c0df/polymers-15-03162-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/199f03cf355d/polymers-15-03162-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/80a232d6e77a/polymers-15-03162-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/046022d05fdb/polymers-15-03162-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7d3d/10421215/a2d566992d49/polymers-15-03162-g009.jpg

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