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Enhancement of Suzuki–Miyaura coupling reaction by photocatalytic palladium nanoparticles anchored to TiO2 under visible light irradiation
Catalysis Communications ( IF 3.7 ) Pub Date : 2018-03-27 , DOI: 10.1016/j.catcom.2018.03.026
Mehdi Koohgard , Mona Hosseini-Sarvari

Plasmonic property and catalytic performance of Pd anchored to TiO2 for Suzuki−Miyaura coupling (SMC) reactions are reported. Different from previous reports, this semiconductor with band gap ≥3 eV can afford CC bond formation for SMC. Nano Pd/TiO2 was successfully synthesized through a photodeposition method under sunlight. The size of Pd nanoparticles onto the surface of TiO2 led to enhancement of localized surface plasmon resonance. This visible-light-harvesting heterogeneous photocatalyst sufficiently promoted substrates toward coupling reaction products at ambient temperature in aqueous media. Photo-generated electron-hole pairs under visible light irradiation, are the key components of activation of the substrates.



中文翻译:

可见光照射下锚定在TiO 2上的光催化钯纳米粒子增强Suzuki-Miyaura偶联反应

铃木-宫浦偶合(SMC)反应的Pd固定在TiO 2上的等离子性质和催化性能已有报道。与以前的报道不同,这种带隙≥3eV的半导体可以为SMC提供CC键形成。纳米Pd / TiO 2是通过光沉积法在阳光下成功合成的。Pd纳米粒子在TiO 2表面上的尺寸导致局部表面等离子体激元共振的增强。在环境温度下在水性介质中,这种收集可见光的非均相光催化剂足以促进底物趋向于偶联反应产物。可见光照射下光生电子空穴对是激活基片的关键因素。

更新日期:2018-03-27
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