Abstract
Photocatalytic degradation of local municipal wastewater and brilliant blue FCF dye were investigated using silver-doped ZnO designer particles. The silver-doped ZnO designer particles were synthesized under mild hydrothermal conditions (T = 150–250∘C, 𝑃=autogeneous, experimental duration = 16–24 h) in the presence of surface modifiers. The resultant products were characterized using powder XRD, FTIR, Zeta potential, and SEM. Various parameters including catalyst amount, light source, pH, and photocatalytic time duration were studied to find out their effects on photodegradation efficiency with respect to municipal wastewater and brilliant blue dye. The effect of these parameters was evaluated using chemical oxygen demand (COD) and % transmittance analyses. The photodegradation results showed that the surface-modified silver-doped ZnO designer particles had higher efficiency compared to the reagent-grade ZnO in photodegradation of municipal wastewater and brilliant blue dye.
Highlights
Water is a basic requirement in all industrial, domestic, and commercial activities; the wastewater generated from these various processes contains a wide range of contaminants depending upon the process
The photodegradation results showed that the surface-modified silver-doped ZnO designer particles had higher efficiency compared to the reagent-grade ZnO in photodegradation of municipal wastewater and brilliant blue dye
Heterogeneous photocatalysis is a promising method among advanced oxidation processes (AOPs), which can be used for degradation of various organic pollutants in water and wastewater [1]
Summary
Water is a basic requirement in all industrial, domestic, and commercial activities; the wastewater generated from these various processes contains a wide range of contaminants depending upon the process. These effluents are intensely colored and are contaminated with a high concentration of organic compounds such as suspended and dissolved salts and many other recalcitrant compounds. Authors report the synthesis and characterization of in situ surface-modified silver-doped ZnO polyscale crystals and their application in the photodegradation of municipal wastewater and brilliant blue dye. Authors report the synthesis and characterization of in situ surface-modified silver-doped ZnO polyscale crystals and their application in the photodegradation of municipal wastewater and brilliant blue dye. n-hexanol is known as a tertiary alcohol which has a strong affinity to silver dopant, and it is expected to bring enhanced catalytic activity for the ZnO nanoparticles
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