Tensile strength optimization and characterization of chitosan/TiO2 hybrid film

Photocatalytic Decolorization Study of Methyl Orange by TiO₂–Chitosan Nanocomposites

“…In addition, the band shift at around 1427 cm -1 to 1404 cm −1 in TiO 2 -chitosan nanocomposite can be attributed to the existence of protonated amino groups The hypothetic interaction between TiO 2 and chitosan in the chitosan structure which forms hydrogen bond to Ti site [16]. In the region wavenumber of 3749 to 3873 cm −1 , the spectral transmittance also appears as sharper bands in TiO 2 -chitosan nanocomposites, indicating that hydroxyl groups of chitosan has been attached to titania network.…”

“…The third stage of TG curve shows that the curves for TiO 2 -chitosan nanocomposite reach a plateau at about 450°C, indicating the complete degradation of chitosan. While chitosan bulk leaves weight percentage of residue of 10% at 900°C which is proportional to the residual organic group [19], TiO 2 -chitosan nanocomposite at the same temperature still have left weight of around or higher than 40% relative to their initial weight, suggesting that the TiO 2 -chitosan nanocomposites exhibits better thermal stability than the chitosan bulk [16].…”

Chitosan/TiO2 nanocomposite pervaporation membranes for ethanol dehydration

“…Based on the previous studies Tao et al, 2007), the possible mechanism for the formation of CS/TiO 2 -R(1) hybrid membranes can be tentatively described as follows: TBT hydrolyzed in the presence of an acid catalyst (acetic acid), leading to the formation of titananol groups in the CS solution. Then, titanoxane bonds might be formed via two ways: one occurred between -OH groups in different titananols, and the other occurred between -OH groups in titananol and -OH groups in CS chains.…”

One pot blending of biopolymer‐TiO2 composite membranes with enhanced mechanical strength

“…Enhancement in the values was probably because some TiO 2 particles functioned as physical junctions in the films during extrusion. 45 Tao et al 46 confirmed the result. However, excess nano-TiO 2 particles are difficult to disperse in membrane casting solution evenly.…”