Bidimensional SnSe(2)-Mesoporous Ordered Titania Heterostructures for Photocatalytically Activated Anti-Fingerprint Optically Transparent Layers.
Bidimensional SnSe(2)-Mesoporous Ordered Titania Heterostructures for Photocatalytically Activated Anti-Fingerprint Optically Transparent Layers.
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DOI：
10.3390/nano13081406
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发表时间：
2023-04-19
期刊：
影响因子：
--
通讯作者：
Innocenzi P
中科院分区：
文献类型：
--
作者：
De Santis J;Paolucci V;Stagi L;Carboni D;Malfatti L;Cantalini C;Innocenzi P
触摸屏和触觉界面的功能涂层设计对智能手机、平板电脑和计算机至关重要。在功能特性中，抑制或消除特定表面的指纹的能力是最关键的之一。通过在有序介孔二氧化钛薄膜中嵌入2D-SnSe2纳米粒子制备了光活化抗指纹涂层。以1-甲基-2-吡咯烷酮为原料，采用溶剂辅助超声法制备了SnSe2纳米结构。SnSe2和纳米锐钛矿型二氧化钛的结合使光激活异质结构的形成具有更强的去除表面指纹的能力。这些结果是通过精心设计异质结构和通过液相沉积控制薄膜的工艺来实现的。SnSe的加入不影响二氧化钛的自组装过程，二氧化钛介孔薄膜保持了其三维的孔结构。涂层具有较高的光学透明性和SnSe2在基质中的均匀分布。通过观察沉积在光活性薄膜上的硬脂酸和罗丹明B层随辐射曝光时间的变化来评价光催化活性。用FTIR和UV-Vis光谱对其进行了光降解测试。此外，还利用红外成像技术对其抗指纹特性进行了评价。光降解过程遵循准一级动力学，比裸的介孔二氧化钛薄膜有了很大的改善。此外，将薄膜暴露在阳光和紫外光下可以完全去除指纹，为几种自清洁应用开辟了道路。
The design of functional coatings for touchscreens and haptic interfaces is of paramount importance for smartphones, tablets, and computers. Among the functional properties, the ability to suppress or eliminate fingerprints from specific surfaces is one of the most critical. We produced photoactivated anti-fingerprint coatings by embedding 2D-SnSe2 nanoflakes in ordered mesoporous titania thin films. The SnSe2 nanostructures were produced by solvent-assisted sonication employing 1-Methyl-2-pyrrolidinone. The combination of SnSe2 and nanocrystalline anatase titania enables the formation of photoactivated heterostructures with an enhanced ability to remove fingerprints from their surface. These results were achieved through careful design of the heterostructure and controlled processing of the films by liquid phase deposition. The self-assembly process is unaffected by the addition of SnSe2, and the titania mesoporous films keep their three-dimensional pore organization. The coating layers show high optical transparency and a homogeneous distribution of SnSe2 within the matrix. An evaluation of photocatalytic activity was performed by observing the degradation of stearic acid and Rhodamine B layers deposited on the photoactive films as a function of radiation exposure time. FTIR and UV-Vis spectroscopies were used for the photodegradation tests. Additionally, infrared imaging was employed to assess the anti-fingerprinting property. The photodegradation process, following pseudo-first-order kinetics, shows a tremendous improvement over bare mesoporous titania films. Furthermore, exposure of the films to sunlight and UV light completely removes the fingerprints, opening the route to several self-cleaning applications.
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作者：
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作者：
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10.1016/j.jphotochem.2013.08.007
发表时间：
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影响因子：
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作者：
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通讯作者：
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