Using ZnO/g-C3N4 Composites to Remove Methylene Blue Dye
Author Information
Author(s): Pourali S., Amrollahi R., Alamolhoda S., Masoudpanah S. M.
Primary Institution: Iran University of Science and Technology
Hypothesis
The study investigates the effectiveness of in situ synthesized ZnO/g-C3N4 composites as photocatalysts for the degradation of methylene blue under visible light.
Conclusion
The ZnO/g-C3N4 composite with 50 wt% g-C3N4 achieved a methylene blue removal efficiency of 97%, significantly higher than the individual components.
Supporting Evidence
- The photodegradation rate of methylene blue increased from 0.016 min−1 for ZnO to 0.022 min−1 for the ZnO/g-C3N4 composite.
- The removal efficiency of methylene blue dye reached 97% with the ZnO/g-C3N4 (50 wt%) composite.
- Combining ZnO with g-C3N4 significantly enhanced the photocatalytic activity under visible light.
Takeaway
This study shows that mixing two materials, ZnO and g-C3N4, can help clean up a harmful dye from water using light.
Methodology
ZnO nanoparticles were synthesized and combined with g-C3N4 through calcination, followed by testing their photocatalytic activity on methylene blue dye.
Limitations
The study does not address the long-term stability of the photocatalysts or their performance in real wastewater conditions.
Digital Object Identifier (DOI)
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