Structural, Optical, and Photocatalytic Properties of Quasi-One-Dimensional Nanocrystalline ZnO, ZnOC:nC Composites, and C-doped ZnO

  • E. V. ShalaevaEmail author
  • O. I. Gyrdasova
  • V. N. Krasilnikov
  • M. A. Melkozerova
  • I. V. Baklanova
  • L. Yu. Buldakova
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 156)


Various thermolysis rotes of zinc glicolate complexes are considered for the synthesis of quasi-one-dimensional nanostructured aggregates ZnO and Zn–O–C used as photocatalysts. Structural features of quasi-one-dimensional aggregates Zn–O–C and ZnO are investigated in detail. Transmission electron microscopy, Raman spectroscopy, and electron paramagnetic resonance spectroscopy methods demonstrate that the aggregates Zn–O–C have either composite structure (ZnO crystallites in amorphous carbon matrix) or a C-doped ZnO single-phase structure depending on heat treatment conditions, and that all the aggregates exhibit as a rule a tubular morphology, a nanocrystalline structure with a high specific surface area, and a high concentration of singly charged oxygen vacancies. The mechanism of the nanocrystalline structure formation is discussed and the effect of thermolysis condition on the formation of the textured structure of aggregates is investigated. The results of examination of the photocatalytic and optical absorption properties of the synthesized aggregates are presented. The photocatalytic activity for the hydroquinone oxidation reaction under ultraviolet and visible light increases in the series: the reference ZnO powder, quasi-one-dimensional ZnO, quasi-one-dimensional aggregates C-doped ZnO, and this tendency correlates with the reduction of the optical gap width. As a result of our studies, we have arrived at an important conclusion that thermal treatment of ZnO:nC composites allows a C-doped ZnO with high catalytic activity. This increasing photoactivity of C-doped ZnO aggregates is attributed to the optimal specific surface area and electron-energy spectrum restructuring to be produced owing to the presence of singly charged oxygen vacancies and carbon dissolved in the ZnO lattice.


Photocatalytic Activity High Specific Surface Area Zinc Oxide Nanocrystalline Structure Thermolysis Product 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the Russian Foundation for Basic Research (project 12−03-00453-a). The authors are also grateful to the Ural Branch of RAS for the support of this study through the regional programs (12-U-3−1009).


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • E. V. Shalaeva
    • 1
    Email author
  • O. I. Gyrdasova
    • 1
  • V. N. Krasilnikov
    • 1
  • M. A. Melkozerova
    • 1
  • I. V. Baklanova
    • 1
  • L. Yu. Buldakova
    • 1
  1. 1.Institute of Solid State Chemistry UB RASEkaterinburgRussian Federation

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