...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Graphitic carbon nitride (g-C3N4) coated titanium oxide nanotube arrays with enhanced photo-electrochemical performance
【24h】

Graphitic carbon nitride (g-C3N4) coated titanium oxide nanotube arrays with enhanced photo-electrochemical performance

机译：石墨化氮化碳（g-C3N4）涂层的氧化钛纳米管阵列具有增强的光电化学性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Herein, we report the successful formation of graphitic carbon nitride coated titanium oxide nanotube array thin films (g-C3N4/TiO2) via the facile thermal treatment of anodized Ti sheets over melamine. The proportion of C3N4 and TiO2 in the composite can be adjusted by changing the initial addition mass of melamine. The as-prepared samples are characterized by several techniques in order to understand the morphological, structural, compositional and optical properties. UV-vis absorption studies exhibit a remarkable red shift for the g-C3N4/TiO2 thin films as compared to the pristine TiO2 nanotubes. Importantly, the prepared composites exhibit an enhanced photocurrent and photo-potential under both UV-vis and visible light irradiation. Moreover, the observed maximum photo-conversion efficiency of the prepared composites is 1.59 times higher than that of the pristine TiO2 nanotubes. The optical and electrochemical impedance spectra analysis reveals that the better photo-electrochemical performance of the g-C3N4/TiO2 nanotubes is mainly due to the wider light absorption and reduced impedance compared to the bare TiO2 nanotube electrode. The presented work demonstrates a facile and simple method to fabricate g-C3N4/TiO2 nanotubes and clearly revealed that the introduction of g-C3N4 is a new and innovative approach to improve the photocurrent and photo-potential efficiencies of TiO2.
机译：在这里，我们报道了通过在三聚氰胺上进行阳极氧化的钛板的便捷热处理，成功形成了石墨氮化碳涂层的氧化钛纳米管阵列薄膜（g-C3N4 / TiO2）。可以通过改变三聚氰胺的初始添加质量来调节复合材料中C3N4和TiO2的比例。为了理解形态，结构，组成和光学性质，用几种技术对制备的样品进行了表征。与原始TiO2纳米管相比，g-C3N4 / TiO2薄膜的紫外可见吸收研究显示出显着的红移。重要的是，制得的复合材料在紫外可见光和可见光辐射下均表现出增强的光电流和光电势。此外，所观察到的制备的复合材料的最大光转化效率是原始TiO 2纳米管的1.59倍。光学和电化学阻抗谱分析表明，与裸露的TiO2纳米管电极相比，g-C3N4 / TiO2纳米管具有更好的光电化学性能，这主要是由于其更宽的光吸收和更低的阻抗。提出的工作表明了一种简便而简单的方法来制造g-C3N4 / TiO2纳米管，并清楚地表明，引入g-C3N4是提高TiO2的光电流和光势效率的一种新的创新方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号