Photocatalytic hollow TiO2 and ZnO nanospheres prepared by atomic layer deposition

Nóra Justh; László Péter Bakos; Klára Hernádi; Gabriella Kiss; Balázs Réti; Zoltán Erdélyi; Bence Parditka; Imre Miklós Szilágyi

doi:10.1038/s41598-017-04090-0

Photocatalytic hollow TiO₂ and ZnO nanospheres prepared by atomic layer deposition

Sci Rep. 2017 Jun 28;7(1):4337. doi: 10.1038/s41598-017-04090-0.

Authors

Nóra Justh¹, László Péter Bakos², Klára Hernádi³, Gabriella Kiss³, Balázs Réti³, Zoltán Erdélyi⁴, Bence Parditka⁴, Imre Miklós Szilágyi^{1

5}

Affiliations

¹ Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111, Budapest, Hungary.
² Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111, Budapest, Hungary. laszlobakos@hotmail.com.
³ Department of Applied and Environmental Chemistry, University of Szeged, H-6720, Szeged, Hungary.
⁴ Department of Solid State Physics, University of Debrecen, H-4026, Debrecen, Hungary.
⁵ MTA-BME Technical Analytical Chemistry Research Group, H-1111, Budapest, Hungary.

Abstract

Carbon nanospheres (CNSs) were prepared by hydrothermal synthesis, and coated with TiO₂ and ZnO nanofilms by atomic layer deposition. Subsequently, through burning out the carbon core templates hollow metal oxide nanospheres were obtained. The substrates, the carbon-metal oxide composites and the hollow nanospheres were characterized with TG/DTA-MS, FTIR, Raman, XRD, SEM-EDX, TEM-SAED and their photocatalytic activity was also investigated. The results indicate that CNSs are not beneficial for photocatalysis, but the crystalline hollow metal oxide nanospheres have considerable photocatalytic activity.

Publication types

Research Support, Non-U.S. Gov't