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首页> 外文期刊>New Journal of Chemistry >g-C3N4/Uio-66-NH2 nanocomposites with enhanced visible light photocatalytic activity for hydrogen evolution and oxidation of amines to imines
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g-C3N4/Uio-66-NH2 nanocomposites with enhanced visible light photocatalytic activity for hydrogen evolution and oxidation of amines to imines

机译:G-C3N4 / UIO-66-NH2纳米复合材料具有增强的可见光光催化活性,用于氢气进化和胺氧化至亚胺

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摘要

g-C3N4/Uio-66-NH2 (CNUIO) nanocomposites were prepared by growing an NH2-mediated zirconium-based metal-organic framework (Uio-66-NH2) in the presence of g-C3N4 nanotubes. CNUIO exhibited efficient photocatalytic performance in the oxidation of amines to imines and hydrogen production under visible light illumination. The optimal Uio-66-NH2 content in CNUIO was 16.7 wt% with a H-2-generation rate of 152.2 mu mol h(-1), which is about 1.7 and 39 times as high as those of g-C3N4 and Uio-66-NH2, respectively. The optimal conversion rate of benzylamine was 58.9%, which is about 3.4 and 10.5 times as high as those of g-C3N4 and Uio-66-NH2, respectively. The probable photocatalytic mechanism of the CNUIO composite was investigated. This work provides a new insight into the fact that g-C3N4/MOF photocatalysts have great potential application in hydrogen production and organic synthesis.
机译:通过在G-C3N4纳米管的存在下生长NH 2介导的锆基金属 - 有机骨架(UIO-66-NH2)来制备G-C3N4 / UIO-66-NH2(CNUIO)纳米复合材料。 CNUIO在可见光照射下表现出胺氧化至亚胺和氢气产生的高效光催化性能。 CNUIO中最佳的UIO-66-NH2含量为16.7wt%,H-2产生速率为152.2μmolH(-1),其高于G-C3N4和UIO的高度为1.7和39倍 - 分别为66-NH2。 苄胺的最佳转化率为58.9%,分别为G-C3N4和UIO-66-NH2的高约3.4和10.5倍。 研究了CNUIO复合材料的可能的光催化机理。 这项工作提供了新的洞察,即G-C3N4 / MOF光催化剂在氢生产和有机合成中具有很大的潜在应用。

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  • 来源
    《New Journal of Chemistry》 |2020年第7期|共10页
  • 作者单位

    Zhejiang Sci Tech Univ Dept Chem Hangzhou 310018 Peoples R China;

    Zhejiang Sci Tech Univ Dept Chem Hangzhou 310018 Peoples R China;

    Zhejiang Sci Tech Univ Dept Chem Hangzhou 310018 Peoples R China;

    Zhejiang Sci Tech Univ Dept Chem Hangzhou 310018 Peoples R China;

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

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