研究目的
Investigating the photocatalytic degradation of methylene blue, malachite green, and Bismarck brown dyes in wastewater using poly(azomethine)/ZnO nanocomposites under natural sunlight.
研究成果
The PAZ/ZnO nanocomposites showed excellent photocatalytic activity for the degradation of methylene blue, malachite green, and Bismarck brown dyes under natural sunlight, with maximum degradation efficiencies of 97%, 96%, and 95% respectively. This suggests that PAZ/ZnO nanocomposites are effective for the decolorization of dye-containing wastewater.
研究不足
The study is limited to the degradation of specific dyes (methylene blue, malachite green, and Bismarck brown) under natural sunlight. The efficiency might vary under different light conditions or with other dyes.
1：Experimental Design and Method Selection:
The study involved the synthesis of poly(azomethine), ZnO, and poly(azomethine)/ZnO nanocomposites, followed by their characterization using various spectroscopic and microscopic techniques. The photocatalytic activity was evaluated under natural sunlight.
2：Sample Selection and Data Sources:
High purity chemicals were purchased from Sigma Aldrich. Dye solutions were prepared using distilled water.
3：List of Experimental Equipment and Materials:
FT-IR spectroscopy (BRUKER EQUINOX-55), UV-Vis spectroscopy (SHIMADZU), Powder X-ray Diffraction (Scintag-XDS-2000 meter), Scanning Electron microscope (JSM-7600F Japan), Transmission Electron Microscopy TEM (JEOL model 2100), and EDAX.
4：Experimental Procedures and Operational Workflow:
The nanocomposites were synthesized, characterized, and then used in photocatalytic degradation experiments under natural sunlight. The degradation efficiency was calculated based on UV-VIS spectroscopy measurements.
5：Data Analysis Methods:
The degradation efficiency was calculated using the equation provided, and the reaction kinetics was analyzed.
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