Degradation of nitrobenzene by nano-TiO2 catalyzed ozonation

Degradation of the ammonia wastewater in aqueous medium with ozone in combination with mesoporous TiO2 catalytic

“…The experiment will each mesoporous TiO2catalyst in catalytic ozone degradation ammonia wastewater effect of ozone alone, markets P25 effects were compared, the results shown in Figure 4, we can see from the figure, a single ozone degradation ammonia wastewater , ammonia nitrogen removal efficiency of around 25%, while the use of market P25 as the degradation efficiency of the catalyst is 50%, indicating TiO2ozone catalytic process itself can promote the role of literature has confirmed this phenomenon, TiO2and ozone at the same time in the presence of the solution, TiO2accelerate the decomposition of ozone decomposition into oxidation stronger HO•, O 2-radicals such as [13] . .…”

“…Many scholars as a separate catalyst or as a carrier research. At present research TiO2nanomaterials are mostly used as a photocatalyst, and TiO2nanomaterials Research ozone catalyst is small, but there are many researchers found that TiO2is a good ozone catalyst [7,8] photocatalyst, researchers have identified the morphology of the catalyst and its catalytic properties of crystal type has a significant impact [9], it is necessary to study the ozone TiO2as a catalyst morphology and crystalline form of the catalytic activity influences. Taking hydrothermal synthesis of different morphologies and Preparation of NanoTiO2crystal phase, select the ammonium chloride wastewater ammonia concentration as a regulator, investigate mesoporous TiO2catalyst on the catalytic properties of ammonia wastewater ozone degradation process, and the catalyst itself performance the study.…”

Nanotechnology Solutions for Global Water Challenges

“…Catalytic ozonation with TiO 2 NPs was proven to provide significant improvement for nitrobenzene removal when compared with ozone alone which follows a hydroxyl radical based mechanism (50). ZnO NPs catalyzed ozonation was investigated by Tabatabaei et al for the degradation of 4-nitrochlorobenzene (51).…”

Catalytic oxidation of ammonium ion in water with ozone over metal oxide catalysts

“…Recently catalytic oxidation with O 3 , which is called catalytic ozonation, has attracted much attention as a method for purifying wastewater to decompose organic compounds in water as well as in gas-phase because the oxidation reaction proceeds near room temperature [12][13][14][15][16][17][18][19][20][21][22]. In fact,…”