A Z-scheme CdS/AgPO catalyst: Characterization, experimental design and mechanism consideration for methylene blue.

Due to the explosive use of Azo dyes in various industries such as textiles, discharging these industrial effluents into the environment critically polluted water supplies. Accordingly, constructing/developing novel binary catalysts to diminish the pollution extent of such effluents before discharging into environment is an excellent issue in environmental chemistry. Here, a binary CdS/ AgPO was constructed, and its boosted photocatalytic activity was proven against methylene blue (MB), as a model dye pollutant.

A designed experiment for CdS-AgBr photocatalyst toward methylene blue.

A boosted photocatalytic activity was observed for the CdS-AgBr nanocomposite in the degradation of methylene blue (MB). The experimental design method based on the response surface methodology (RSM) approach used to study the simultaneous interaction effects between the influencing variables. Analysis of variance (ANOVA) of the results confirmed a significant model for processing the data because an F value of 32.

A ternary CdS/AgBr/AgPO nanocomposite: characterization and the kinetics of its photocatalytic activity.

A ternary CdS/AgBr/AgPO coupled system was prepared, characterized by different techniques, and used for the photodegradation of methylene blue (MB). The hexagonal (wurtzite) CdS, the cubic AgBr, and the AgPO body-centered cubic crystallite phases were detected by XRD patterns. The Scherer equation showed the crystallite sizes of 3, 26.