Synthesis of Photofunctional Titania Nanosheets by Electrophoretic Deposition
Synthesis of Photofunctional Titania Nanosheets by Electrophoretic Deposition
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DOI：
10.1021/cm0491882
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发表时间：
2005
影响因子：
8.6
通讯作者：
Tatsuto Yui;Y. Mori;Takako Tsuchino;T. Itoh;T. Hattori;ठand Yoshiaki Fukushima;K. Takagi
中科院分区：
文献类型：
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作者：
Tatsuto Yui;Y. Mori;Takako Tsuchino;T. Itoh;T. Hattori;ठand Yoshiaki Fukushima;K. Takagi
本工作首次探索了利用二氧化钛纳米片(TN)在电极上制备沿c轴高度规整的透明耐久薄膜的有效方法。该技术是一种电泳法，适用于在ITO电极上沉积TN薄膜，这是一种很有前途的纳米材料，可用于设计UV−可见光敏感能量转换系统。研究发现，TN水溶液的浓度、粘度和pH值对TN的沉积有显著影响。利用石英晶体分析(QCA)，确定了TN粘附量最大的最佳沉积条件，并确定了TN溶液粘度和TN层表面电荷之间的微妙平衡，这决定了TN在基片上的沉积量。此外，通过在溶液中加入聚乙烯醇(PVA)、引发剂和引发剂等方法，可以显著改善薄膜的沉积性能。
This work presents the first investigation of an effective methodology for the synthesis of transparent and durable thin films with a high regularity along the c-axis using titania nanosheets (TN) on electrodes. This technique, an electrophoretic deposition method (EPD), was found to be applicable for the preparation of TN thin films deposited on ITO electrodes, a promising nanomaterial for the design of UV−visible light-sensitive energy conversion systems. The deposition of TN was found to be significantly affected by the concentrations, viscosity, and pH values of the aqueous TN solutions. Using quartz crystal analysis (QCA), the optimal deposition conditions for the most adhesive amounts of TN were established, and the delicate balance between the TN solution viscosity and surface charges of the TN layers that govern the amount of TN deposited on the substrate was discerned. Moreover, the deposited thin films were greatly improved by the addition of poly(vinyl alcohol) (PVA) into the solutions, initiat...