Photochemical Oxidative Coupling of 2‐Naphthols using a Hybrid Reduced Graphene Oxide/Manganese Dioxide Nanocomposite under Visible‐Light Irradiation,ChemCatChem

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Photochemical Oxidative Coupling of 2‐Naphthols using a Hybrid Reduced Graphene Oxide/Manganese Dioxide Nanocomposite under Visible‐Light Irradiation
ChemCatChem ( IF 3.8 ) Pub Date : 2018-02-06 , DOI: 10.1002/cctc.201701470
Anurag Kumar _{1,

2} , M. S. Aathira ₁ , Ujjwal Pal ₃ , Suman L. Jain ₁

Affiliation

We describe a simple, cost‐effective, efficient, and high‐yielding photocatalytic approach for the oxidative self‐dimerization of 2‐naphthols using a semiconductor–metal hybrid that consists of intercalated manganese dioxide nanoparticles in reduced graphene oxide (rGO/MnO₂) under visible‐light irradiation. The desired photocatalyst was synthesized in a single step by mixing MnO₂ nanoparticles with rGO ultrasonically. The hybrid photocatalyst exhibited a significantly higher activity than neat MnO₂ nanoparticles and rGO, which is believed to be because of the synergistic effect of its components. To our knowledge, this hybrid rGO/MnO₂ nanocomposite is the first heterogeneous, green photocatalyst for the oxidative coupling of 2‐naphthols under mild conditions.

中文翻译：

在可见光照射下使用杂化还原氧化石墨烯/二氧化锰纳米复合材料对2-萘酚进行光化学氧化偶联

我们描述了一种简单的，具有成本效益，高效且高产的光催化方法，该方法使用由金属-金属杂化物组成的2-萘酚的氧化自二聚，该杂化物由在还原的氧化石墨烯（rGO / MnO ₂）中嵌入的二氧化锰纳米颗粒组成。在可见光照射下。通过将MnO ₂纳米粒子与rGO超声混合，一步即可合成所需的光催化剂。杂化光催化剂显示出比纯MnO ₂纳米颗粒和rGO显着更高的活性，这被认为是由于其组分的协同作用。据我们所知，这种混合rGO / MnO ₂ 纳米复合材料是第一种在温和条件下氧化2-萘酚的多相绿色光催化剂。

更新日期：2018-02-06

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