Synthesis of hydrated KTaWO6 nanoparticles and Sn(ii) incorporation for visible light absorption
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Updated: Feb 10, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Morten Weiss1, Roland Marschall
1Institute of Physical Chemistry, Justus-Liebig-University Giessen, Heinrich Buff Ring 17, 35392 Giessen, Germany. Roland.marschall@phys.chemie.uni-giessen.de.
Abstract:
The defect-pyrochlore stuctured semiconductor KTaWO6 has been prepared via hydrothermal synthesis, resulting in single-crystalline nanoparticles with adjustable crystallite size between 15 and 24 nm. With subsequent ion-exhange of K with Sn(ii) the band gap of this complex semiconductor can be reduced by 1.3 eV. We show that the ion-exchange is greatly facilitated by the incorporation of water into the crystal lattice.
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