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首页> 外文期刊>Environmental Science & Technology >Composite Photocatalyst of Nitrogen and Fluorine Codoped Titanium Oxide Nanotube Arrays with Dispersed Palladium Oxide Nanoparticles for Enhanced Visible Light Photocatalytic Performance
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Composite Photocatalyst of Nitrogen and Fluorine Codoped Titanium Oxide Nanotube Arrays with Dispersed Palladium Oxide Nanoparticles for Enhanced Visible Light Photocatalytic Performance

机译：氮和氟共掺杂的氧化钛纳米管阵列与分散的氧化钯纳米粒子的复合光催化剂增强可见光的光催化性能

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摘要

A novel composite photocatalyst of nitrogen (N) and fluorine (F) codoped titanium oxide (TiO_2) nanotube arrays with dispersed palladium oxide (PdO) nanoparticles was developed by dispersing PdO nanoparticles into N and F codoped TiO_2 nanotube array template created by anodization of titanium foil. These N and F codoped TiO_2/PdO nanotube arrays demonstrated increased visible light absorption, fast superhy-drophilicity conversion, and enhanced photocatalytic degradation of organic pollutants. The enhancement on the photocatalylic performance was explained by the optoelectronic coupling between dispersed PdO nanoparticles and N and F codoped TiO_2 nanotube arrays under visible light illumination, which involves trapping of electrons by PdO nanoparticles, and subsequently decreases the electron/hole pair recombination. Various transition metal/metal oxide nanoparticles could be introduced into nanotube arrays by this simple approach, which could create novel properties for nanotube arrays and promise a wide range of technical applications.
机译：通过将PdO纳米颗粒分散到钛阳极氧化形成的N和F共掺杂的TiO_2纳米管阵列模板中，开发了一种新型的氮和氟共掺杂的氧化钛（TiO_2）纳米管阵列与分散的氧化钯（PdO）纳米颗粒的复合光催化剂。挫败。这些N和F共掺杂的TiO_2 / PdO纳米管阵列显示出增加的可见光吸收，快速的超亲水性转化以及增强的有机污染物的光催化降解。分散的PdO纳米粒子与N和F共掺杂的TiO_2纳米管阵列在可见光下的光电耦合解释了光催化性能的增强，这涉及PdO纳米粒子捕获电子，并随后降低电子/空穴对的复合。可以通过这种简单的方法将各种过渡金属/金属氧化物纳米颗粒引入纳米管阵列，这可以为纳米管阵列创建新的特性并有望实现广泛的技术应用。

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  • 来源
    《Environmental Science & Technology》 |2010年第9期|P.3493-3499|共7页
  • 作者

    QI LI; rnJIAN KU SHANG;

  • 作者单位

    Materials Center for Water Purification, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China;

    rnMaterials Center for Water Purification, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, P. R. China Department of Materials Science and Engineering University of Illinois at Urbana-Champaign, Urbana, Illinois 61801;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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