The work aims to evaluate the sonophotocatalytic treatment (combination between photocatalytic activity and ultrasound) as an intensification process for removing pollutants such as azo dyes from water and wastewater. Four photocatalysts were prepared: TiO₂ was doped with silver and graphene oxide to produce Ag/TiO₂, graphene oxide/TiO₂ and Ag-graphene oxide/TiO₂ systems. Several analysis techniques, including SEM, XPS, were used to characterize the catalysts. The photocatalytic and sonophotocatalytic activity of all of the catalysts to degrade Orange II and Black 5 dyes was evaluated. Sheets of graphene oxide were identified on the spherical particles of TiO₂, and some sheets were observed to be strongly bound to the titania. The existence of Ti-O-C bonds, Ti⁴⁺, Ag⁺, and metallic silver were determined. Combining photocatalysis (with UV light) and ultrasound has an intensifying and synergistic effect on the degradation rate of both dyes. The degradation kinetics were obtained. Orange II degradations were faster when UV light and TiO₂_Ag_Graphene or TiO₂_Ag catalysts were used. The highest degradation rates of Black 5 were obtained when the TiO₂_Ag_Graphene, TiO₂_Ag, or TiO₂ catalysts were used. The highest degradation of the dyes was obtained at 1000 kHz and UV light.

这项工作旨在评估声光催化处理（光催化活性和超声波的结合），作为从水和废水中去除诸如偶氮染料等污染物的强化工艺。制备了四种光催化剂：用银和氧化石墨烯掺杂TiO ₂以产生Ag / TiO ₂，氧化石墨烯/ TiO ₂和Ag-氧化石墨烯/ TiO ₂系统。几种分析技术，包括SEM，XPS，被用来表征催化剂。评价了所有催化剂降解Orange II和Black 5染料的光催化和声光催化活性。在TiO ₂的球形颗粒上发现了氧化石墨烯片，并且观察到一些薄片牢固地结合到二氧化钛上。确定了Ti-OC键，Ti ⁴⁺，Ag ⁺和金属银的存在。将光催化（使用紫外线）和超声相结合，对两种染料的降解率都有增强和协同作用。获得了降解动力学。橙II退化是当UV光以及TiO更快₂ _Ag_Graphene或TiO ₂被用来_Ag催化剂。当二氧化钛，得到黑5的最高降解速率₂ _Ag_Graphene，二氧化钛₂ _Ag，或TiO _2分中使用的催化剂。在1000 kHz和紫外线下，染料的降解率最高。