The 20th Chinese NationalConference on Light Scattering organized by Suzhou University and Xiamen Universitywas held in Suzhou from Nov. 2-6, 2019.Lu Bai was awarded the Best Poster Award. Congratulations!
The article reported an efficientvisible-light-driven deuteration of organic halides using plasmonic Au/CdS asphotocatalyst and green D2O as deuterium donor. The highphotocatalytic activity is a result of plasmon-generated hot electrons andenhanced charge separation/transfer on the Au/CdS nanocomposites. Thedeuteration mechanism is proved to be a radical pathway in which C−X bonds areactivated by the photoinduced electron transfer to generate active arylradicals, and the aryl radicals are trapped by the D2O to give thedeuterated products. This work provides an efficient approach forvisible-light-driven deuteration under mild conditions and sheds light on theinteraction between plasmonic NPs and semiconductor, which is very helpful forrational design of photocatalyst.
This article reported on the combination of plasmonic Au NPs and semiconductors for plasmon-promoted electrocatalytic water splitting. By using SERS, we find a strong spontaneous interfacial charge transfer between Au and NiCo LDH. Through selective blocking of the metal surface with a thiol molecular monolayer, it is found that the plasmon-promoted OER occurs on LDH semiconductor but HER are mainly located on Au NP surface. This work demonstrates the critical role of interfacial charge transfer in hot electron-driven water splitting and paves the way for rational design of high-performance plasmonic electrocatalysts.