FABRICATION OF 3D POROUS PHOTOCATALYST BASED ON TIO2 AND CO3O4 NANOPOWDERS FOR HYDROGEN PRODUCTION APPLICATION
Abstract
Cobalt titanate (CoTiO3) is one of the promising candidates for visible-light-driven photocatalytic water oxidation. In this research, the formation of multilayered 3D porous structures was performed by mixing Co3O4 and TiO2 nanopowders with adding pore-forming agents and further calcination. Different crystallite sizes of porous CoTiO3 were produced by varying the calcination temperature. The fabricated 3D porous CoTiO3 were characterized using XRD, SEM, BET, optical measuring technique. The crystallite size increases with increasing the calcination temperature within the range of 600-800°C. The photocatalytic activity of 3D porous CoTiO3 was studied by measuring the rate of H2 evolution during the splitting in 0.5M KOH aqueous solution electrolyte under 300 mW/cm2 xenon lamp irradiation
About the Authors
A. Mereke
Satbayev University, ТОО «Физико-технический институт»
Kazakhstan
Kazakhstan
A. Umirzakov
Satbayev University, ТОО «Физико-технический институт»
Kazakhstan
Kazakhstan
R. Beisenov
Satbayev University, ТОО «Физико-технический институт»
Kazakhstan
Kazakhstan
B. Rakhmetov
Satbayev University, ТОО «Физико-технический институт»
Kazakhstan
Kazakhstan
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Review
For citations:
Mereke A., Umirzakov A., Beisenov R., Rakhmetov B. FABRICATION OF 3D POROUS PHOTOCATALYST BASED ON TIO2 AND CO3O4 NANOPOWDERS FOR HYDROGEN PRODUCTION APPLICATION. Bulletin of Shakarim University. Technical Sciences. 2020;(3(91)):137-143. (In Russ.)
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