研究目的
Investigating the stability of curcumin solution in the existence of tungsten trioxide (WO3) particles under light illumination.
研究成果
Curcumin is relatively stable against light irradiation but its stability decreases with the addition of WO3 particles, leading to a 73.58% decrease in concentration after 22 hours. Avoiding contact with WO3 particles can minimize curcumin decomposition.
研究不足
The study focused on the photodecomposition of curcumin in the presence of WO3 under specific conditions (100 W Neon Lamp, 22 hours irradiation). The reaction rate was insignificant in the first 13 hours, possibly due to the formation of intermediate compounds.
1：Experimental Design and Method Selection:
Curcumin was extracted from turmeric, mixed with WO3 particles, and subjected to light irradiation in a photoreactor system.
2：Sample Selection and Data Sources:
Curcumin solution was prepared at 100 ppm concentration, and WO3 particles were added.
3：List of Experimental Equipment and Materials:
Photoreactor system, 100 W Neon Lamp, magnetic stirrer, bubbler, portable spectrophotometer, SEM, XRD, FTIR.
4：Experimental Procedures and Operational Workflow:
The mixed solution was irradiated for 22 hours, with concentration measured using a turbidity analysis.
5：Data Analysis Methods:
Concentration changes were monitored using a portable spectrophotometer, and material characterization was performed using SEM, XRD, and FTIR.
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