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首页> 外文期刊>Journal of Materials Science >Enhancement of photocatalytic performance of TaON by combining it with noble-metal-free MoS2 cocatalysts
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Enhancement of photocatalytic performance of TaON by combining it with noble-metal-free MoS2 cocatalysts

机译:通过将其与无金属 - 无金属MOS2助催化剂组合来增强陶瓷的光催化性能

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摘要

Utilizing cocatalysts is an effective measure to enhance photocatalytic activities of photocatalysts. Nevertheless, noble-metal cocatalysts such as Pt and Au impose astounding costs on the application of photocatalytic technology. Herein, noble-metal-free MoS2 was used as a cocatalyst to improve the photocatalytic activity of visible-light-responsive TaON for the first time. This work indicates that MoS2/TaON presented higher activity than Pt/TaON while MoS2 costs much less than Pt. The photocatalytic degradation ratio of RhB over Ta1Mo1 (mass ratio of TaON:MoS2=1:1) was about 65% after 2h visible light irradiation, which is about five times higher than that of pure TaON. Furthermore, MoS2/SiO2/TaON ternary photocatalysts were constructed to further improve the photocatalytic performance. When the mass ratio of Ta8Si1 (mass ratio of TaON:SiO2=8:1) to MoS2 was 1:1, the degradation ratio of RhB reached 75% after 2h visible light irradiation. This work provides a facile method to construct high-efficient photocatalysts with the noble-metal-free cocatalyst MoS2, paving the way to realize the application of cheap and environment-friendly photocatalysis.
机译:利用助催化剂是增强光催化剂光催化活性的有效措施。然而,Pt和Au等贵金属助催化剂在光催化技术的应用上施加了惊人的成本。在此,使用无金属 - 无金属MOS2作为助催化剂,首次改善可见光响应陶器的光催化活性。这项工作表明MOS2 / Taon呈现比Pt / Taon更高的活动,而MOS2成本远小于PT。在2H可见光照射后,RHB对Ta1MO1的光催化降解比率约为65%,比纯焦焦的比例高约5倍。此外,构建MOS2 / SiO2 /陶龙三元光催化剂以进一步改善光催化性能。当TA8SI1的质量比(Taon:SiO 2 = 8:1的质量比)为1:1时,在2h可见光照射后,rHB的降解比率达到75%。这项工作提供了一种舒适的方法,可以用无贵巴金属助催化剂MOS2构建高效的光催化剂,铺平了实现廉价和环保光催化的应用。

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  • 来源
    《Journal of Materials Science》 |2019年第7期|共10页
  • 作者单位

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ Coll Mat Sci &

    Engn State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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