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Copper‐Doped CdSe/ZnS Quantum Dots: Controllable Photoactivated Copper(I) Cation Storage and Release Vectors for Catalysis |
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| Authors: | Joseph C Bear Dr Nathan Hollingsworth Dr Paul D McNaughter Dr Andrew G Mayes Dr Michael B Ward Prof Thomas Nann Dr Graeme Hogarth Prof Ivan P Parkin |
| Institution: | 1. Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ (UK);2. School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, Norfolk, NR4 7TJ (UK);3. Institute of Materials Research, School of Process, Environmental and Materials Engineering (SPEME), University of Leeds, Leeds, LS2 9JT (UK);4. Ian Wark Research Institute, University of South Australia, Mawson Lakes Boulevard, Adelaide, SA 5095 (Australia) |
| Abstract: | The first photoactivated doped quantum dot vector for metal‐ion release has been developed. A facile method for doping copper(I) cations within ZnS quantum dot shells was achieved through the use of metal‐dithiocarbamates, with Cu+ ions elucidated by X‐ray photoelectron spectroscopy. Photoexcitation of the quantum dots has been shown to release Cu+ ions, which was employed as an effective catalyst for the Huisgen 3+2] cycloaddition reaction. The relationship between the extent of doping, catalytic activity, and the fluorescence quenching was also explored. |
| Keywords: | click chemistry copper catalysis core– shell materials heterogeneous catalysis quantum dots |