Applying Mechanochemistry for Bottom-Up Synthesis and Host-Guest Surface Modification of Semiconducting Nanocrystals: A Case of Water-Soluble β-Cyclodextrin-Coated Zinc Oxide.
Mechanochemistry has recently emerged as an environmentally friendly solventless synthesis method enabling a variety of transformations including those impracticable in solution. However, its application in the synthesis of well-defined nanomaterials remains very limited. Here, we report a new bottom-up mechanochemical strategy to rapid mild-conditions synthesis of organic ligand-coated ZnO nanocrystals (NCs) and their further host-guest modification with β-cyclodextrin (β-CD) leading to water-soluble amide-β-CD-coated ZnO NCs. The transformations can be achieved by either one-pot sequential or one-step three-component process. The developed bottom-up methodology is based on employing oxo-zinc benzamidate, [Zn4 (μ4 -O)(NHOCPh)6 ], as a predesigned molecular precursor undergoing mild solid-state transformation to ZnO NCs in the presence of water in a rapid, clean and sustainable process.
Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland.
Piotr
0000-0002-2876-0736
P
Krupiński
Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland.
Arkadiusz
A
Kornowicz
Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland.
Kamil
K
Sokołowski
Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland.
Anna M
AM
Cieślak
Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland. lewin@ch.pw.edu.pl.|Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland. lewin@ch.pw.edu.pl.
Janusz
J
Lewiński
D055772:Green Chemistry Technology; D008024:Ligands; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology; D012666:Semiconductors; D012995:Solubility; D013499:Surface Properties; D014867:Water / Q000737:chemistry; D015034:Zinc Oxide / Q000138:chemical synthesis / Q000737:chemistry*; D047392:beta-Cyclodextrins / Q000138:chemical synthesis / Q000737:chemistry*
D008024:Ligands; D047392:beta-Cyclodextrins; D014867:Water; C031215:betadex; D015034:Zinc Oxide
cyclodextrins; green chemistry; host-guest systems; mechanochemistry; nanoparticles; zinc oxide