研究目的
Investigating the effect of tin and strontium doping on the photocatalytic activity of zinc sulphide nanoparticles for the degradation of resorcinol under solar and ultra-violet light.
研究成果
Strontium and Tin doped Zinc Sulphide nanoparticles showed enhanced photocatalytic activity compared to pure Zinc Sulphide, with complete degradation of resorcinol achieved under optimal conditions. The study highlights the potential of doped Zinc Sulphide nanoparticles for environmental remediation applications.
研究不足
The study focused on the degradation of resorcinol, a single organic pollutant, and the effects of external parameters like pH and catalyst loading. The applicability to other pollutants and under different conditions was not explored.
1：Experimental Design and Method Selection:
The study involved the preparation of tin and strontium doped zinc sulphide nanoparticles via the Sol-Gel method.
2：Sample Selection and Data Sources:
Zinc Acetate dihydrate and Thiourea were used for the preparation of pure Zinc Sulphide, with Strontium Nitrate and Stannous Chloride used for doping.
3：List of Experimental Equipment and Materials:
Equipment included a magnetic stirrer, muffle furnace, UV-photoreactor, and various spectroscopic instruments for characterization.
4：Experimental Procedures and Operational Workflow:
The synthesis involved dissolving chemicals in methanol, stirring, adding ethylene glycol as a capping agent, heating, and calcination. Photocatalytic degradation experiments were conducted under UV and solar light.
5：Data Analysis Methods:
Characterization techniques included TG-DTA, SEM-EDX, XRD, UV-Visible spectroscopy, and photoluminescence spectroscopy. Photocatalytic activity was assessed by measuring COD of resorcinol solution.
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