Open AccessSynthesis, characterization and photocatalytic activity of titano-phosphate glasses
Author(s) -
Abdelillah Shaim,
Elhassan Amaterz,
Yassine Naciri,
A. Taoufyq,
B. Bakiz,
M. Ezahri,
A. Benlhachemi,
Abdelkrim Ouammou,
Abdelkrim Chahine
Publication year - 2019
Publication title -
mediterranean journal of chemistry
Language(s) - English
Resource type - Journals
ISSN - 2028-3997
DOI - 10.13171/mjc8119032221as
Subject(s) - chemistry , photocatalysis , phosphate glass , glass transition , phosphate , depolymerization , fourier transform infrared spectroscopy , nuclear chemistry , rhodamine , analytical chemistry (journal) , mineralogy , chemical engineering , polymer chemistry , catalysis , optics , organic chemistry , polymer , physics , engineering , fluorescence
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.