Open AccessSynthesis, Properties and Application of Titanium Dioxide Doped with Nitrogen. Its Effectiveness on Photo Degradation Glutathione-S-Transferase (GST) enzymes Pupae Instar of Aedes aegypti
Author(s) -
Moatasem Al-Salih,
Syakirah Samsudin,
Siti Suri Arshad
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1963/1/012131
Subject(s) - photocatalysis , anatase , calcination , titanium dioxide , rutile , materials science , crystallinity , nuclear chemistry , catalysis , doping , band gap , chemical engineering , inorganic chemistry , chemistry , organic chemistry , optoelectronics , engineering , metallurgy , composite material
The sol-gel method was used to create N-doped TiO 2 . From the characterization results, it was found that N-doped TiO 2 using Titanium(IV) ammonia solution and calcination tetraisopropoxide 600 K provided the most appropriate properties for acting as the photo catalyst can be use as inhibitor of GST. SEM, AFM and XRD results indicated that this N-doped TiO 2 catalyst had high crystallinity because its titania precursor was simply hydrolyzed completely so no organic contents blocked initial phase construction. SEM and AFM results demonstrated that its surface morphology was spherical like fluffy powders. Moreover, with increasing calcination temperature, its anatase-to-rutile phase transformation was retarded by the incorporated nitrogen. Elemental Analysis and UV-Vis/DR results also suggested that nitrogen could be dormant in the TiO 2 lattice with strong bonds, causing the effect on the band gap structure by adding energy states nearly valence band of TiO 2 . All of these properties enhanced the photocatalytic activity of N-doped TiO 2 under visible light. Regarding the photocatalytic activity, N-doped TiO 2 with ammonia solution of titanium(IV), calcinated 600 K Tetraisopropoxide succeeded in degrading glutathione-S-transferase (GST) enzymes, with the highest efficiency. However, its photocatalytic activity was drastically decreased when it was calcined at higher temperature. Additionally, the plausible mechanism was also proposed in case of photo degradation of antioxidant content based on two detected intermediates by The association between ln Co/C and photo degradation period (h).