Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix
The photocatalytic properties of Ag–AgBr nanostructures formed by low-temperature ion exchange method and followed heat-treatment in bromide sodium-zinc-aluminosilicate glass have been investigated. Glasses based on Na2O–ZnO–Al2O3–SiO2 system and doped with Sb2O3, Ce2О3 and Br were synthesized. Laye...
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| Format: | Article |
| Language: | English |
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Saint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University)
2022-06-01
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| Series: | Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki |
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| Online Access: | https://ntv.ifmo.ru/file/article/21260.pdf |
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| author | Dmitriy V. Marasanov Yevgeniy M. Sgibnev Nikolay V. Nikonorov |
| author_facet | Dmitriy V. Marasanov Yevgeniy M. Sgibnev Nikolay V. Nikonorov |
| author_sort | Dmitriy V. Marasanov |
| collection | DOAJ |
| description | The photocatalytic properties of Ag–AgBr nanostructures formed by low-temperature ion exchange method and followed heat-treatment in bromide sodium-zinc-aluminosilicate glass have been investigated. Glasses based on Na2O–ZnO–Al2O3–SiO2 system and doped with Sb2O3, Ce2О3 and Br were synthesized. Layers containing silver ions were formed on the surface of sodium-zinc-aluminosilicate glass by the ion exchange method. The glass samples were immersed in a bath containing a melt of nitrate mixture 5AgNO3/95NaNO3 (mol%) at 320 °C for 2 hours. Subsequent heat treatment at 500 °C resulted in a formation of Ag–AgBr nanostructures in the surface layer. The photocatalytic properties of the Ag–AgBr nanostructures on the glass surface were measured by the decomposition of the methyl orange
dye. A comprehensive study of the spectral and photocatalytic properties of Ag–AgBr nanostructures has been carried out. It was shown that, after ion exchange and heat treatment, the AgBr crystal shells with a size of 6 nm were formed around silver nanoparticles. It has been established that the presence of a photocatalyst with Ag–AgBr nanostructures in the surface layer of glass under ultraviolet irradiation leads to degradation of the methyl orange dye by 77 %. Reducing the thickness of the ion-exchange layer to 5 μm by chemical etching decreased the degradation efficiency of the methyl orange dye to 15 %. The results of the work can be applied in devices for the photocatalytic decomposition of water to
produce hydrogen. |
| first_indexed | 2024-12-12T17:23:32Z |
| format | Article |
| id | doaj.art-738a82e73529467fa114a6f2fe831d9a |
| institution | Directory Open Access Journal |
| issn | 2226-1494 2500-0373 |
| language | English |
| last_indexed | 2024-12-12T17:23:32Z |
| publishDate | 2022-06-01 |
| publisher | Saint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University) |
| record_format | Article |
| series | Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki |
| spelling | doaj.art-738a82e73529467fa114a6f2fe831d9a2022-12-22T00:17:35ZengSaint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University)Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki2226-14942500-03732022-06-0122350951610.17586/2226-1494-2022-22-3-509-516Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrixDmitriy V. Marasanov0https://orcid.org/0000-0001-8480-2016Yevgeniy M. Sgibnev1https://orcid.org/0000-0002-2840-9479Nikolay V. Nikonorov2https://orcid.org/0000-0002-1341-067XPhD Student, ITMO University, Saint Peterburg, 197101, Russian Federation, sc 57195673419PhD (Physics & Mathematics), Leading Engineer, ITMO University, Saint Peterburg, 197101, Russian Federation, sc 56784249300D. Sc. (Physics & Mathematics), Full Professor, ITMO University, Saint Peterburg, 197101, Russian Federation, sc 7003772604The photocatalytic properties of Ag–AgBr nanostructures formed by low-temperature ion exchange method and followed heat-treatment in bromide sodium-zinc-aluminosilicate glass have been investigated. Glasses based on Na2O–ZnO–Al2O3–SiO2 system and doped with Sb2O3, Ce2О3 and Br were synthesized. Layers containing silver ions were formed on the surface of sodium-zinc-aluminosilicate glass by the ion exchange method. The glass samples were immersed in a bath containing a melt of nitrate mixture 5AgNO3/95NaNO3 (mol%) at 320 °C for 2 hours. Subsequent heat treatment at 500 °C resulted in a formation of Ag–AgBr nanostructures in the surface layer. The photocatalytic properties of the Ag–AgBr nanostructures on the glass surface were measured by the decomposition of the methyl orange dye. A comprehensive study of the spectral and photocatalytic properties of Ag–AgBr nanostructures has been carried out. It was shown that, after ion exchange and heat treatment, the AgBr crystal shells with a size of 6 nm were formed around silver nanoparticles. It has been established that the presence of a photocatalyst with Ag–AgBr nanostructures in the surface layer of glass under ultraviolet irradiation leads to degradation of the methyl orange dye by 77 %. Reducing the thickness of the ion-exchange layer to 5 μm by chemical etching decreased the degradation efficiency of the methyl orange dye to 15 %. The results of the work can be applied in devices for the photocatalytic decomposition of water to produce hydrogen.https://ntv.ifmo.ru/file/article/21260.pdfion exchangebromide sodium-zinc-aluminosilicate glasssilver nanoparticlesagbr nanocrystalsphotocatalysismethyl orange dye |
| spellingShingle | Dmitriy V. Marasanov Yevgeniy M. Sgibnev Nikolay V. Nikonorov Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki ion exchange bromide sodium-zinc-aluminosilicate glass silver nanoparticles agbr nanocrystals photocatalysis methyl orange dye |
| title | Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix |
| title_full | Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix |
| title_fullStr | Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix |
| title_full_unstemmed | Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix |
| title_short | Photocatalytic properties of Ag–AgBr nanostructures in ion-exchanged layers of bromide sodium-zinc-aluminosilicate glass matrix |
| title_sort | photocatalytic properties of ag agbr nanostructures in ion exchanged layers of bromide sodium zinc aluminosilicate glass matrix |
| topic | ion exchange bromide sodium-zinc-aluminosilicate glass silver nanoparticles agbr nanocrystals photocatalysis methyl orange dye |
| url | https://ntv.ifmo.ru/file/article/21260.pdf |
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