Multifunctional Cl-S double-doped carbon nitride nanotube unit in catalytic ozone oxidation synergistic photocatalytic system: Generation of ROS-rich region and effective treatment of organic wastewater

Insights into the photocatalytic ozonation over Ag2O-ZnO@g-C3N4 composite: Cooperative structure, degradation performance, and synergistic mechanisms

“…Combined with the band gap from the UPS analysis, the EVB of Ag2O-ZnO@CN0.4 composite was determined to be 0.67 eV, that was lower than OH − / • OH (2.38 eV). Therefore, the catalyst could not produce • OH through the alone evolution of h + , and h + mainly participated in ROS chain reaction or interacted directly with pollutants [61]. In addition, O3 could capture the photo-generated e − to form • O3 − , and then, transform to reactive species via a series chain reaction (Eqs.…”

Mechanism and application of ozone fading: Oxidative decolorisation of disperse dyes and waste‐dyed polyester fabrics

“…It is widely used in medical and health care, drinking water purification, food processing, wastewater purification and the oxidative finishing of textile fibres. [14][15][16][17] In recent years, a large number of studies have shown that the strong oxidation effect of ozone can destroy chromogenic groups and has an obvious decolorisation effect on natural pigments and dyes. 8,14,18,19 Eren et al proposed that keeping the ozone production rate at 3 g/h, ozonation alone in a dyebath solution, and ultrasound-assisted ozonation, can cause colour removal.…”

“…Ozone is a strong oxidising substance with an oxidation potential of 2.07 eV. It is widely used in medical and health care, drinking water purification, food processing, wastewater purification and the oxidative finishing of textile fibres 14–17 . In recent years, a large number of studies have shown that the strong oxidation effect of ozone can destroy chromogenic groups and has an obvious decolorisation effect on natural pigments and dyes 8,14,18,19 .…”

Enhanced degradation of dimethyl phthalate in wastewater via heterogeneous catalytic ozonation process: performances and mechanisms

“…With the recent advances in ozonation oxidation, it is now possible to achieve the conversion of O 3 to cOH at a wide pH range. 21 Nevertheless, the ozone has a low solubility in water, 22,23 thus leading to a sluggish reaction for producing cOH and thus inefficient pollutant removal. For addressing this issue, the catalytic ozonation process has been developed, in which the ozone is supplied to the vicinity of catalyst, accelerating the decomposition of ozone and thereby facilitating the formation of cOH.…”