Structural and dielectric properties of boron-doped and un-doped mullite thin films

Mesoporous SiO2–TiO2 nanocomposite for pH sensing

“…Moreover, it also indicates that the OH groups on the silica network are condensing to form Si-O-Si bridges resulting in the weight loss. It has been previously reported that the weight loss at temperatures lower than 270 °C in composites is due to the removal of physically absorbed water molecules [34][35][36][37]. While, in the case of heat treated sample, the first regime corresponds to removal of solvent residues and adsorbed water.…”

“…The mass weight loss is 12.96%, which starts at lower temperatures around 50 °C and is complete around 180 °C. The second regime corresponds to thermal decomposition of dye in consonance with the melting point of dye followed by water removal from framework hydroxyls [30,37] and weight loss is 9.52% in the temperature range of 200-550°C. The melting points of indicator dyes are summarized in Table.3 (section 4.5).…”