Structural Characterization and Visible-Light Photocatalytic Performance of AgBr-Modified Zr-Containing Titanium Silicalite-1 (TS-1) Composites
4 affiliations
- 1Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- 2PERIMED-2, BG16RFPR002-1.014-0007, Central District, Vasil Aprilov Blvd. 15A, 4002 Plovdiv, Bulgaria
- 3National Centre of Excellence Mechatronics and Clean Technologies, 8 bul. Kliment Ohridski, 1756 Sofia, Bulgaria
- 4Institute of Physical Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract
AgBr-modified Zr-containing titanium silicalite-1 (TS-1) composites were prepared and evaluated for methyl orange (MO) removal under white-light irradiation. AgBr modification markedly enhanced the visible-light response of the Zr-containing TS-1 materials, resulting in MO removal efficiencies of up to 98.6% after 50 min of irradiation. Structural and textural characterization confirmed preservation of the MFI framework after modification, while diffuse-reflectance measurements showed that the visible-light absorption of the composites is predominantly governed by the AgBr component. The composites retained substantial activity over five consecutive cycles, and scavenger experiments indicated a possible contribution of hydroxyl radicals to MO removal. These results demonstrate that AgBr modification is an effective strategy for enhancing the visible-light activity of Zr-containing TS-1 materials.
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BibTeX
@article{lazarova2026structural,
title = {{Structural Characterization and Visible-Light Photocatalytic Performance of AgBr-Modified Zr-Containing Titanium Silicalite-1 (TS-1) Composites}},
author = {Hristina Lazarova and Elena Tacheva and Borislav Barbov and Rusi Rusew and Stela Atanasova-Vladimirova and Boris Shivachev},
journal = {Molecules},
year = {2026},
month = oct,
doi = {10.3390/molecules31213921},
url = {https://www.mdpi.com/1420-3049/31/21/3921},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Structural Characterization and Visible-Light Photocatalytic Performance of AgBr-Modified Zr-Containing Titanium Silicalite-1 (TS-1) Composites
AU - Hristina Lazarova
AU - Elena Tacheva
AU - Borislav Barbov
AU - Rusi Rusew
AU - Stela Atanasova-Vladimirova
AU - Boris Shivachev
PY - 2026
DA - 2026/10/30
JO - Molecules
DO - 10.3390/molecules31213921
UR - https://www.mdpi.com/1420-3049/31/21/3921
AB - AgBr-modified Zr-containing titanium silicalite-1 (TS-1) composites were prepared and evaluated for methyl orange (MO) removal under white-light irradiation. AgBr modification markedly enhanced the visible-light response of the Zr-containing TS-1 materials, resulting in MO removal efficiencies of up to 98.6% after 50 min of irradiation. Structural and textural characterization confirmed preservation of the MFI framework after modification, while diffuse-reflectance measurements showed that the visible-light absorption of the composites is predominantly governed by the AgBr component. The composites retained substantial activity over five consecutive cycles, and scavenger experiments indicated a possible contribution of hydroxyl radicals to MO removal. These results demonstrate that AgBr modification is an effective strategy for enhancing the visible-light activity of Zr-containing TS-1 materials.
SN - 1420-3049
ER -