Photocatalytic coalescence of functionalized gold nanoparticles.
A novel strategy for the synthesis of chromophore-functionalized AuNPs with a narrow size distribution is reported. It consists of increasing the size of preprepared NPs by means of a fast (second scale) and clean (light and an organic photocatalyst) method. The results agree with thiolate ligand liberation from the NP surface promoted by photogenerated radicals. This lets gold cores come together and finally coalesce.
Cuquerella
M Consuelo
MC
Department of Organic Chemistry, ICMOL, Universidad de Valencia, 46980 Paterna, Valencia, Spain.
Pocoví-Martínez
Salvador
S
Pérez-Prieto
Julia
J
D001577:Benzophenones / Q000737:chemistry; D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D055668:Photochemical Processes; D011721:Pyrenes / Q000737:chemistry
D001577:Benzophenones; D011721:Pyrenes; D006046:Gold; C030984:pyrene