Effect of Silver Deposition on the Material Characteristics and Photocatalytic Activity of Barium Titanates
8 affiliations
- 1Department of Physical Chemistry and Materials Sciences, University of Szeged, Aradi v. Sqr. 1, 6720 Szeged, Hungary
- 2Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla Sqr. 1, 6720 Szeged, Hungary
- 3Vehicle Industry Research Center, Széchenyi István University, Egyetem tér 1. 303, 9026 Győr, Hungary
- 4Department of Physical and Environmental Geography, University of Szeged, Egyetem Str. 2-6, 6722 Szeged, Hungary
- 5Department of Molecular and Analytical Chemistry, University of Szeged, Dóm Sqr. 7-8, 6720 Szeged, Hungary
- 6Faculty of Nursing and Health Sciences, Iuliu Hațieganu University of Medicine and Pharmacy, Victor Babeș 8, RO-400012 Cluj-Napoca, Romania
- 7Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babes-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
- 8Institute of Research-Development-Innovation in Applied Natural Sciences, Babes-Bolyai University, Fântânele Str. 30, RO-400294 Cluj-Napoca, Romania
Abstract
Silver (0–5 wt%) was reduced on the surface of barium titanates (BaTiO3) to investigate its effect on the properties and photocatalytic activity of the support. Samples were characterized by X-ray diffractometry, diffuse reflectance spectroscopy, photoluminescence, transmission electron microscopy, photocurrent density, and linear sweep voltammetry. Their photocatalytic activity was evaluated by phenol degradation under UV light irradiation. A commercial BaTiO3 without silver was used as a reference. Nominal silver amounts were consistent with the measured ones in the samples containing 0–3 wt% silver; however, at high nominal amounts (4–5 wt%), the measured silver content decreased significantly (~1.3 wt%). Samples containing larger silver particles had higher photoactivity than samples containing smaller silver particles. The sample containing 5 wt% silver performed the best, reaching a phenol degradation rate of 2.10 × 10−4 s−1, over an order of magnitude higher than that of the non-silver-containing reference sample (1.47 × 10−5 s−1). The enhanced photoactivity was associated with the larger silver particles covering less of the BaTiO3 surface, leaving more active sites available, and with the silver hindering charge recombination by trapping the electrons and thus increasing the efficiency of holes.
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BibTeX
@article{agoston2026effect,
title = {{Effect of Silver Deposition on the Material Characteristics and Photocatalytic Activity of Barium Titanates}},
author = {Áron Ágoston and Eszter Kanász and Szabolcs Kocsis Szürke and Mahsa Abedi and Karolina Solymos and Csaba Bús and Milica Todea and Ágota Deák and Tamás Gyulavári and Ákos Kukovecz and Zoltán Kónya and Zsolt Pap},
journal = {Nanomaterials},
year = {2026},
month = oct,
doi = {10.3390/nano16201322},
url = {https://www.mdpi.com/2079-4991/16/20/1322},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Effect of Silver Deposition on the Material Characteristics and Photocatalytic Activity of Barium Titanates
AU - Áron Ágoston
AU - Eszter Kanász
AU - Szabolcs Kocsis Szürke
AU - Mahsa Abedi
AU - Karolina Solymos
AU - Csaba Bús
AU - Milica Todea
AU - Ágota Deák
AU - Tamás Gyulavári
AU - Ákos Kukovecz
AU - Zoltán Kónya
AU - Zsolt Pap
PY - 2026
DA - 2026/10/01
JO - Nanomaterials
DO - 10.3390/nano16201322
UR - https://www.mdpi.com/2079-4991/16/20/1322
AB - Silver (0–5 wt%) was reduced on the surface of barium titanates (BaTiO3) to investigate its effect on the properties and photocatalytic activity of the support. Samples were characterized by X-ray diffractometry, diffuse reflectance spectroscopy, photoluminescence, transmission electron microscopy, photocurrent density, and linear sweep voltammetry. Their photocatalytic activity was evaluated by phenol degradation under UV light irradiation. A commercial BaTiO3 without silver was used as a reference. Nominal silver amounts were consistent with the measured ones in the samples containing 0–3 wt% silver; however, at high nominal amounts (4–5 wt%), the measured silver content decreased significantly (~1.3 wt%). Samples containing larger silver particles had higher photoactivity than samples containing smaller silver particles. The sample containing 5 wt% silver performed the best, reaching a phenol degradation rate of 2.10 × 10−4 s−1, over an order of magnitude higher than that of the non-silver-containing reference sample (1.47 × 10−5 s−1). The enhanced photoactivity was associated with the larger silver particles covering less of the BaTiO3 surface, leaving more active sites available, and with the silver hindering charge recombination by trapping the electrons and thus increasing the efficiency of holes.
SN - 2079-4991
ER -