Activities Of Improve-Loaded TiO₂ Photocatalyst Application In Treatment H₂S Odor

Activities of TiO₂-photocatalyst which fixed on the glass fiber by means of the sol - Gel method of titanium Sol and impregnated - pulling method in degradation H₂S odor has been investigated on the self-made gas - solid reaction. The oxygen content, relative humidity and gas concentration have been taken into account to study the activities of improve-loaded TiO₂ photocatalyst application in treatment H₂S odor. In addition, photocatalytic principle has been used to explain the problems in the study, explored the way to improve catalyst active by modified- TiO₂. This research gives basic data and the theoretic support in order to Industrial application with TiO2- photocatalyst in degradation H₂S odor.Glass fiber cloth as the carrier, TiO₂ photocatalyst is more active in degradation H₂S odor which decreases particle size after Ag doping and strong acid surface treatment by XRD technology. This is became the initial reaction of the optical principles and TiO₂ modified principle.Object to the degradation H₂S, oxygen content, relative humidity and H₂S initial concentration factors on the impact of TiO₂- photocatalyst Activities have been controlled. Statistical analysis of experimental data obtained that when the oxygen content of 25%, relative humidity of 20%, TiO₂ degradation H₂S effect is the best. Time will control degradation effect, this experiment intake of 100 mg/m³, the system dealing with H₂S efficiency is more than 80 %, with the increasing concentration of intake, efficiency dropped drastically.In addition, the impact of the relative humidity was discussed. H₂O molecule plays a dual role, on the one hand, higher relative humidity conditions will promote the H₂O molecule H₂S initial stage of purification rate; On the other hand, In smaller relative humidity conditions of competition H₂O absorption of the weakening of TiO₂ on H₂S more thorough cleaning TiO₂. In different relative humidity conditions modified-TiO₂ are relatively stable performance from the excellent catalytic performance.