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Synthesis of core- shell N-TiO2@ CuOx with enhanced visible light photocatalytic performance

机译:核心壳N-TiO2的合成Cuox,具有增强的可见光光催化性能

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摘要

In this paper, a core-shell N-TiO2@CuOx nanomaterial with increased visible light photocatalytic activity was successfully synthesized using a simple method. By synthesizing ammonium titanyl oxalate as a precursor, N-doped TiO2 can be prepared, then the core-shell structure of N-TiO2@CuOx with a catalyst loading of Cu on its surface was prepared using a precipitation method. It was characterized in detail using XRD, TEM, BET, XPS and H-2-TPR, while its photocatalytic activity was evaluated using the probe reaction of the degradation of methyl orange. We found that the core-shell N-TiO2@CuOx nanomaterial can lessen the TiO2 energy band-gap width due to the N-doping, as well as remarkably improving the photo-degradation activity due to a certain loading of Cu on the surfaces of N-TiO2 supports. Therefore, a preparation method for a novel N, Cu co-doped TiO2 photocatalyst with a core-shell structure and efficient photocatalytic performance has been provided.
机译:本文用简单的方法成功地合成了具有增加的可见光光催化活性的CuOx N-TiO 2核 - 壳N-TiO 2。 通过将草酸氢钛作为前体合成,可以制备N掺杂的TiO 2,然后使用沉淀法制备其表面上具有Cu的N-TiO2 @ CuOx的核壳结构。 使用XRD,TEM,BET,XPS和H-2-TPR详细描述了其特征,同时使用甲基橙的降解的探针反应评价其光催化活性。 我们发现核心壳N-TiO2 @ Cuox纳米材料可以减少由于N掺杂引起的TiO2能带 - 间隙宽度,以及由于在表面上的某种载体上的一定负载载引起的光降解活性显着提高了光降解活性 N-TiO2支持。 因此,已经提供了一种具有核 - 壳结构和有效的光催化性能的新型N,Nu,Cu共掺杂TiO2光催化剂的制备方法。

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  • 来源
    《RSC Advances》 |2018年第44期|共7页
  • 作者单位

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

    Huangshan Univ Coll Chem &

    Chem Engn Huangshan 245041 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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