Have a personal or library account? Click to login
Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO2 nanoparticles Cover

Influence of doping with Co, Cu, Ce and Fe on structure and photocatalytic activity of TiO2 nanoparticles

Open Access
|Mar 2018

Abstract

In this paper, structural and photocatalytic properties of TiO2 nanopowders doped with 1 at.% of cerium, cobalt, cooper and iron have been compared. Nanoparticles were synthesized by sol-gel technique and characterized by SEM, EDS and XRD methods. Moreover, their photocatalytic activity was determined based on decomposition of methyl orange. Results were compared with undoped powder. The structural investigations have revealed that all prepared nanopowders were nanocrystalline and had TiO2-anatase structure. The average size of crystallites was ca. 4 nm to 5 nm. The distribution of the dopant was homogenous in case of all manufactured powders. Moreover, for TiO2 doped with Co, Ce and Cu, aggregation effect was not as large as for TiO2:Fe. The results of photocatalytic decomposition showed that self-cleaning activity of all prepared nanopowders was higher as compared to undoped one. Due to the efficiency of these reactions (after 5 hours) nanopowders can be ordered as: TiO2:Co > TiO2:Ce > TiO2:Cu > TiO2:Fe > TiO2.

DOI: https://doi.org/10.1515/msp-2017-0117 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
Language: English
Page range: 725 - 732
Submitted on: Oct 25, 2016
Accepted on: Jan 24, 2018
Published on: Mar 21, 2018
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:

© 2018 Damian Wojcieszak, Michal Mazur, Danuta Kaczmarek, Jaroslaw Domaradzki, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.