Catalysis Communications 2018-03-27

Enhancement of Suzuki–Miyaura coupling reaction by photocatalytic palladium nanoparticles anchored to TiO2 under visible light irradiation

Mehdi Koohgard, Mona Hosseini-Sarvari

Index: 10.1016/j.catcom.2018.03.026

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Abstract

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 C C 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.