Preparation and Properties of Photocalysts in ZnO/TiO2 System

ZnO/TiO2 nanocomposites with several ratio of the components were prepared by sol-gel method using titanium isopropoxide and titanium butoxide as titania precursors. Phase formation and photocatalytic activity of ZnO/TiO2 nanocomposites depend on ratio of the components and calcination temperature....

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Published in:Key engineering materials 2019-04, Vol.800, p.170-174
Main Authors: Letlena, Anita, Grabis, Jānis, Sīpola, Inta
Format: Article
Language:English
Subjects:
Catalytic activity
Dependence
Light
Methylene blue
Nanocomposites
Phase composition
Photocatalysis
Photovoltaic cells
Roasting
Sol-gel processes
Titanium
Titanium dioxide
Zinc oxide
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description ZnO/TiO2 nanocomposites with several ratio of the components were prepared by sol-gel method using titanium isopropoxide and titanium butoxide as titania precursors. Phase formation and photocatalytic activity of ZnO/TiO2 nanocomposites depend on ratio of the components and calcination temperature. The photocatalytic activity in dependence on calcination temperasture, phase composition was determined by degradation of methylene blue solution under Hg lamp and solar light imitating illumination. The highest photocatalytic activity showed ZnO/TiO2 nanocomposites containing 99 mol.% ZnO and 50 mol% ZnO when hexagonal ZnTiO3 phase was formed. ZnO/TiO2 nanocomposites exhibited enhanced photoactivity under solar light with respect to Hg lamp irradiation.
doi_str_mv 10.4028/www.scientific.net/KEM.800.170
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subjects Catalytic activity
Dependence
Light
Methylene blue
Nanocomposites
Phase composition
Photocatalysis
Photovoltaic cells
Roasting
Sol-gel processes
Titanium
Titanium dioxide
Zinc oxide
title Preparation and Properties of Photocalysts in ZnO/TiO2 System
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