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Statistical summary of the results obtained through the time in the photocatalytic system with Ag/TiO 2
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In this study, the synthesis and characterization of the TiO2 and Ag/TiO2 nanoparticles were carried out and their influence on the oxidation of organic matter of domestic wastewater was evaluated using a heterogeneous photocatalytic system. The TiO2 and Ag/TiO2 nanoparticles were synthesized by the sol–gel method and the chemical reduction method....
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Petrochemical wastewater contains a variety of organic pollutants. Advanced oxidation processes (AOPs) are used for deep petrochemical wastewater treatment with distinct advantages, including the complete mineralization of organic substances, minimal residual byproducts, and compatibility with biological treatment systems. This work evaluates the e...
Citations
To modify the wide bandgap and intrinsic high recombination rate of photogenerated charge carriers of Zn2SnO4 photocatalysts, Ag/SnO2–Zn2SnO4 composites were prepared by depositing Ag nanoparticles onto cube-shaped SnO2–Zn2SnO4 nanomaterials via photoreduction. The composites were characterized by XRD, SEM, EDS, TEM, XPS, and UV–Vis DRS, and their photocatalytic degradation effect on rhodamine B (Rh B) for different Ag loadings was studied, with 10%Ag/SnO2–Zn2SnO4 showing the greatest effect. The UV photocatalytic degradation rate of the Rh B solution reaches 100% after 12 min of visible light irradiation and 91% after five cycles. The free radical trapping agent experiment indicated that the active substances of Ag/SnO2–Zn2SnO4 photocatalysis are ·O2− and h+. Further, photoelectrochemical tests revealed the higher electron–hole separation efficiency and faster charge transfer rate of the composites, enhancing the formation of photoproduced carriers and photocatalytic activity.
