Investigation of thermal, structural, morphological and photocatalytic properties of Cu<sub>x</sub>Co<sub>1-x</sub>Fe<sub>2</sub>O<sub>4</sub> (0 ≤ x ≤ 1) nanoparticles embedded in SiO<sub>2</sub> matrix
- Autor(en)
- Thomas Dippong, Erika-Andrea Levei, Christian Lengauer, Andrada Daniel, Dana Toloman, Oana Cadar
- Abstrakt
In the present work, Cu2+ substituted Co ferrite (CuxCo1-xFe2O4, x = 0.00, 0.25, 0.50, 0.75 and 1.00) nanoparticles embedded in SiO2 matrix were synthesized via a modified sol-gel method followed by high temp. annealing. The reaction progress was investigated by thermal anal. coupled with mass spectrometry and Fourier transformed IR spectroscopy (FT-IR), while the formation of CuxCo1-xFe2O4/SiO2 nanocomposites (NCs) and of secondary phases as a result of the variation of Cu/Co molar ratios were investigated by powder X-ray diffraction anal. (PXRD) and FT-IR. The particle size and shape were studied by transmission electron microscopy (TEM) and SEM (SEM). By varying the Cu/Co molar ratios, the dependence of phase specific parameters (crystallite size, cell parameter, d., porosity) and the evolution of particle shape and size at 1000 °C were investigated by TEM. The photocatalytic activity of the NCs by increasing the Cu content was evaluated through the degrdn. of Rhodamine B under UV-Vis light irradn.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- Technical University of Cluj-Napoca, INCDO-INOE 2000, Research Institute for Analytical Instrumentation Subsidiary (ICIA) Cluj-Napoca, National Institute for Research and Development of Isotopic and Molecular Technologies
- Journal
- Materials Characterization: An International Journal on Materials Structure and Behavior
- Band
- 163
- Anzahl der Seiten
- 10
- ISSN
- 1044-5803
- DOI
- https://doi.org/10.1016/j.matchar.2020.110268
- Publikationsdatum
- 03-2020
- Peer-reviewed
- Ja
- ÖFOS 2012
- 104011 Materialchemie, 105113 Kristallographie
- Schlagwörter
- ASJC Scopus Sachgebiete
- Condensed Matter Physics, Mechanics of Materials, Mechanical Engineering, Materials Science(all)
- Link zum Portal
- https://ucris.univie.ac.at/portal/de/publications/investigation-of-thermal-structural-morphological-and-photocatalytic-properties-of-cuxco1xfe2o4-0--x--1-nanoparticles-embedded-in-sio2-matrix(d737ad75-4d44-4bb8-8041-13920283984d).html