The production of anatase-rich photoactive coatings by plasma electrolytic oxidation
The production of anatase-rich photoactive coatings by plasma electrolytic oxidation
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等离子体电解氧化法制备富含锐钛矿的光敏涂层
DOI：
10.1016/j.surfcoat.2012.05.076
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发表时间：
2012
影响因子：
5.4
通讯作者：
Mirelman L
中科院分区：
文献类型：
--
作者：
Mirelman L
生产光活性表面的一种有前途的方法是将等离子体电解氧化 (PEO) 工艺应用于商业纯钛基材，形成具有高锐钛矿含量（> 90%体积）的高多孔表面。本文概述了在各种条件下生产此类 PEO 涂层的工作，并评估了其光催化效率。研究了涂层的相组成和表面微观结构。处理时间和电解质浓度都发生变化，试图优化该应用的工艺。正如预期的那样，微观结构确实表现出高锐钛矿含量和孔隙率水平，但随着涂层变厚，并且还依赖于电解质成分，会发生变化。作为光催化反应的一个例子，我们研究了在未经处理的钛基材和经过 PEO 处理的表面存在的情况下，亚甲基蓝染料在紫外线照射下的降解情况。有迹象表明，高锐钛矿含量和较厚的涂层对催化效率都有有益的影响，尽管观察到锐钛矿含量随着涂层厚度的增加而下降的趋势。这些涂层的磷含量也存在变化，但这似乎并不影响光催化效率。
A promising approach to producing photoactive surfaces is to apply the plasma electrolytic oxidation (PEO) process to commercially pure titanium substrates, creating a highly porous surface with a high anatase content (>90% by volume). In this paper, work is outlined in which such PEO coatings have been produced under a variety of conditions, and their photo-catalytic efficiency assessed. Coating phase constitutions and surface microstructures have been investigated. Both treatment time and electrolyte concentration were varied, in an attempt to optimise the process for this application. Microstructures did, as expected, exhibit high anatase contents and porosity levels, but there were changes as the coatings became thicker and also a dependence on electrolyte composition. As an example of a photo-catalysed reaction, a study was made of the degradation of methylene blue dye under UV irradiation, in the presence of both untreated titanium substrates and PEO-treated surfaces. There are indications that both high anatase content and thicker coatings have beneficial effects on the catalytic efficiency, although a tendency was observed for the anatase content to fall as coating thickness was increased. There were also variations in the phosphorus contents of these coatings, although this did not appear to affect the photo-catalytic efficiency.
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影响因子：
5.4
作者：
Dunleavy, C. S.;Curran, J. A.;Clyne, T. W.
通讯作者：
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DOI：
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发表时间：
2009
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2007
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Inho Han;J. Choi;Baohong Zhao;H. Baik;In
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发表时间：
2007
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作者：
T. Hou;J. Z. Zhang
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电感耦合等离子体原子发射光谱仪技术研究钛合金微等离子体氧化陶瓷涂层的生长特性
DOI：
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发表时间：
2007
期刊：
影响因子：
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作者：
Zhongping Yao;Zhaohua Jiang;Fu;Wei Xue
通讯作者：
Wei Xue