Synthesis, characterization and photocatalytic activity of titano-phosphate glasses
| Autor: | Abdelkrim Chahine, A. Taoufyq, Abdelillah Shaim, Mohamed Ezahri, Bahcine Bakiz, Abdeljalil Benlhachemi, Yassine Naciri, Abdelkarim Ouammou, E. Amaterz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
medicine.diagnostic_test
Infrared Depolymerization 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Phosphate 01 natural sciences 0104 chemical sciences lcsh:Chemistry chemistry.chemical_compound chemistry lcsh:QD1-999 Spectrophotometry Rhodamine B Photocatalysis medicine Irradiation 0210 nano-technology Glass transition Nuclear chemistry |
| Zdroj: | Mediterranean Journal of Chemistry, Vol 8, Iss 1, Pp 66-73 (2019) |
| ISSN: | 2028-3997 |
| Popis: | Photocatalytic activity of (50-x/2)Na2O-xTiO2–(50-x/)P2O5 glasses (0 ≤ x ≤ 10 mol%) has been studied with an increase in the TiO2 content using UV-Visible spectrophotometry. Thermal properties were carried out from DTA measurement, and the variation of glass structure was investigated by Fourier Transform Infrared (FT-IR). The first addition of the TiO2 up to 3 mol% entrained depolymerization of the phosphate skeleton (PO3)¥ chains in the binary 50Na2O–50P2O5 glass, resulting in poor cross-linking, which in turn the glass network becomes less rigid and the glass transition temperature (Tg) was decreased. Beyond this value, FT-IR reveals the formation of P–O–Ti bonds, which increases the cross-link density in the glass network and therefore increases Tg of the glasses. The photocatalytic activity results showed that these glasses ensure the discoloration of Rhodamine B by a removal efficiency of about 94% after 4h of irradiation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|