Đánh giá khả năng phân hủy acid orange 7 của vật liệu FeCo-ZIFs với sự hiện diện của chất oxy hóa
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Abstract
In this study, FeCo-ZIFs with highly crystalline structures were successfully synthesized in a methanol environment using a solvothermal method. The structural characteristics of FeCo-ZIFs were evaluated using advanced analytical techniques, including PXRD, FT-IR, EDX, SEM, TGA, and nitrogen adsorption analysis. FeCo-ZIFs were investigated for their catalytic ability to degrade orange acid 7 (AO7) in the presence of potassium peroxydisulfate. Factors affecting catalytic efficiency, including PDS concentration, catalyst mass, AO7 concentration, and reaction time, were examined. The study demonstrated that FeCo-ZIF could degrade 99.2% of AO7 at a concentration of 30 mg/L within 20 minutes at room temperature, with PDS and FeCo-ZIFs concentrations of 0.1 g/L and 0.2 g/L, respectively. These findings suggest that FeCo-ZIFs are a promising material for removing toxic persistent organic compounds from water, offering a sustainable method to help protect the environment.
Tóm tắt
Trong nghiên cứu này, vật liệu FeCo-ZIFs có cấu trúc tinh thể cao đã được tổng hợp thành công trong methanol bằng phương pháp nhiệt dung môi. Đặc điểm cấu trúc của FeCo-ZIFs được xác định bằng các phương pháp phân tích hiện đại như PXRD, FT-IR, EDX, SEM, TGA và khả năng hấp phụ khí nitơ. FeCo-ZIFs thể hiện khả năng xúc tác phân hủy acid orange 7 (AO7) tốt với sự hiện diện của chất oxy hóa potassium peroxydisulfate trong môi trường nước giả thải. Kết quả cho thấy FeCo-ZIFs có thể xử lý 99,2% AO7 nồng độ 30 mg/L trong vòng 20 phút ở nhiệt độ phòng, với nồng độ PDS và FeCo-ZIFs lần lượt là 0,1 g/L và 0,2 g/L. Điều này chứng tỏ FeCo-ZIFs là vật liệu tiềm năng để loại bỏ các hợp chất hữu cơ khó phân hủy trong môi trường nước, góp phần bảo vệ môi trường.
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