• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >One-step electrosynthesis of visible light responsive double-walled alloy titanium dioxide nanotube arrays for use in photocatalytic degradation of dibutyl phthalate
【24h】

One-step electrosynthesis of visible light responsive double-walled alloy titanium dioxide nanotube arrays for use in photocatalytic degradation of dibutyl phthalate

机译：可见光响应双壁合金二氧化钛纳米管阵列的一步电气合成，用于光催化降解邻苯二甲酸二丁酯的光催化降解

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

Using Ti-6Al-4V (TC4) alloy as a substrate, double-walled alloy titanium dioxide nanotube arrays (DW-ATNTAs) with a special porous inner wall and visible light response are synthesizedin situby an improved anodization method. During the anodization, the V element in the TC4 alloy converts into V(2)O(5)which dominates the visible light response of DW-ATNTAs. After 3 h of irradiation with visible light, there is a nearly 97% reduction of dibutyl phthalate (DBP) by DW-ATNTAs in which the degradation kinetic constant is 50 and 7 times higher than that of titanium dioxide nanotube arrays (TNTAs) and alloy titanium dioxide layers (A-TiO2(plate)), respectively. The richly porous inner wall structure of DW-ATNTAs can provide sufficient vacancies for adsorption and active sites for photocatalytic reaction. Furthermore, the differences in the morphology of the inner and outer walls are attributed to the thicker carbon and fluorine-rich oxide layer (C, F-rich oxide layer) resulting from a longer time that the inner wall spends in contact with the electrolyte during the anodization process. This special porous inner wall structure was formed due to the anti-corrosion properties of the alloy caused by appropriate amounts of V and Al as well as the removal of C and F elements during the calcination process.
机译：使用Ti-6Al-4V（TC4）合金作为基板，具有特殊多孔内壁和可见光响应的双壁合金二氧化钛阵列（DW-Atntas）是合成的阳极氧化方法。在阳极化期间，TC4合金中的V元件转换为V（2）O（5），其主导DW-Atntas的可见光响应。经可见光照射3小时后，通过DW-AtnTA的Dibutyl邻苯二甲酸二丁酯（DBP）减少了近97％，其中降解动力学常数比二氧化钛纳米管阵列（TNTAS）和合金高出50％和7倍二氧化钛层（A-TiO 2（板））分别。 DW-AtnTAS的丰富多孔内壁结构可以为光催化反应的吸附和活性位点提供足够的空位。此外，内壁和外壁的形态的差异归因于较长的碳和富含富含富含富氧化物层的氧化物层（C，F，F-富含氧化物层），从而延长内壁在内壁与电解质接触的时间内阳极化过程。由于在煅烧过程中由适量的V和Al引起的合金的抗腐蚀性能以及在煅烧过程中除去C和F元素而形成这种特殊的多孔内壁结构。

著录项

  • 来源
    《RSC Advances》 |2020年第36期|共10页
  • 作者

    Wang Yuan; Zhang Xueke; You Suzhen; Hu Yun;

  • 作者单位

    South China Univ Technol Sch Environm &

    Energy Guangzhou 510006 Peoples R China;

    South China Univ Technol Sch Environm &

    Energy Guangzhou 510006 Peoples R China;

    South China Univ Technol Sch Environm &

    Energy Guangzhou 510006 Peoples R China;

    South China Univ Technol Sch Environm &

    Energy Guangzhou 510006 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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