研究目的
To synthesize, characterize, and evaluate the photocatalytic activity of silver nanoparticle-doped phosphomolybdic acid supported on zirconia for the degradation of azo dye under visible light irradiation.
研究成果
The PMA/Zr/Ag nanocomposite was successfully prepared and showed enhanced photocatalytic activity for the decolourization of methylene blue under visible light irradiation, achieving a degradation efficiency of 91.74% in 105 minutes.
研究不足
The study focuses on the photocatalytic degradation of methylene blue dye under visible light irradiation. The applicability of the nanocomposite to other dyes or under different conditions was not explored.
1：Experimental Design and Method Selection
The nanocomposite was synthesized by wet impregnation method, involving the impregnation of phosphomolybdic acid on zirconia followed by doping with silver nanoparticles.
2：Sample Selection and Data Sources
Phosphomolybdic acid, zirconyl chloride, methylene blue dye, and silver nitrate were used as materials. The photocatalytic activity was evaluated using methylene blue dye degradation under visible light irradiation.
3：List of Experimental Equipment and Materials
X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Visible spectroscopy were used for characterization. Materials included phosphomolybdic acid, zirconyl chloride, methylene blue dye, and silver nitrate.
4：Experimental Procedures and Operational Workflow
Zirconia was prepared by hydrolysis of zirconyl chloride, followed by impregnation with phosphomolybdic acid and doping with silver nanoparticles. The photocatalytic activity was assessed by monitoring the degradation of methylene blue dye under visible light.
5：Data Analysis Methods
The decolourization efficiency and rate constant of photodegradation were calculated from absorbance measurements.
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