Rewritable Superhydrophilic-Superhydrophobic Patterns on a Sintered Titanium Dioxide Substrate
Rewritable Superhydrophilic-Superhydrophobic Patterns on a Sintered Titanium Dioxide Substrate
复制标题
DOI：
10.1021/la101947y
复制
发表时间：
2010-07-20
期刊：
影响因子：
3.9
通讯作者：
Fujishirna, Akira
中科院分区：
文献类型：
--
作者：
Nakata, Kazuya;Nishimoto, Shunsuke;Fujishirna, Akira
这封信描述了一种新的制造工艺的超疏水-超疏水图案的二氧化钛表面上使用的喷墨技术和自组装单分子层（SAM）的光催化反应在紫外线照射下的位点选择性分解的组合。为了诱导高的表面润湿性，我们进行了简单的煅烧的Ti基板。因此，基板被氧化为氧化钛，并具有漩涡状粗糙的形态，这是适合于润湿性图案的形成。此外，在通过使用UV照射的TiO 2的光催化分解消除超疏水-超疏水图案之后，可以再生基板，并且图案再次沉积。我们创建的更新表面具有与先前图案不同的润湿性图案。该工艺基于TiO 2表面，并应提供可再生、资源节约和环境友好的润湿性图案形成方法
This Letter describes a new fabrication process for superhydrophilic-superhydrophobic patterns on a TiO2 surface using a combination of an inkjet technique and the site-selective decomposition of a self-assembled monolayer (SAM) by a photocatalytic reaction under UV irradiation. To induce high surface wettability, we carried out simple calcination of a Ti substrate. The substrate was thus oxidized to titanium oxide and had a vortex-like rough morphology, which was suitable for the formation of wettability patterns. Furthermore, the substrate can be regenerated after elimination of the superhydrophilic-superhydrophobic patterns by the photocatalytic decomposition of TiO2 using UV irradiation, and the patterns are deposited again. The renewed surface that we created had a wettability pattern that was different from the preceding pattern. This process is based on a TiO2 surface and should offer a renewable, resource-saving, and environmentally friendly methodology for the formation of wettability patterns