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Đánh giá hiệu quả của các hạt nano bạc tổng hợp xanh với chiết xuất từ lá Cryptocarya alba trong việc loại bỏ chất ô nhiễm hữu cơ thuốc nhuộm methylene blue
Tóm tắt
Trong nghiên cứu này, các hạt nano bạc (AgNPs) được tổng hợp từ chiết xuất lá của Cryptocarya alba (Peumo) đã được khảo sát. Phương pháp chế tạo nhanh chóng, chi phí thấp và thân thiện với môi trường, và các tính chất cuối cùng của AgNPs được xác định bởi các yếu tố thí nghiệm, như nồng độ AgNO3 và chiết xuất Peumo được sử dụng. Với các điều kiện thí nghiệm phù hợp, các AgNPs tinh thể với hình dạng gần như hình cầu và đường kính trung bình khoảng 3,5 nm đã được thu được. Ngoài ra, khả năng của Peumo-AgNPs được tổng hợp trong việc loại bỏ thuốc nhuộm methylene blue (MB) trong dung dịch nước cũng như hiệu suất xúc tác của chúng cũng đã được điều tra. Kết quả cho thấy AgNPs được tổng hợp bằng phương pháp xanh có thể loại bỏ thuốc nhuộm MB nhanh chóng và hiệu quả từ môi trường nước, nhưng kết quả tốt hơn được tìm thấy khi chúng hoạt động như một xúc tác bằng cách sử dụng natri borohydride (NaBH4) trong phản ứng. Thêm vào đó, loại vật liệu nano xanh này có thể được tái chế nhiều lần mà vẫn giữ được các tính chất ban đầu để loại bỏ MB. Do đó, AgNPs được tổng hợp từ chiết xuất lá Peumo có thể là một ứng cử viên xúc tác tuyệt vời cho việc phân hủy thuốc nhuộm methylene blue trong ngành công nghiệp hóa chất.
Từ khóa
#hạt nano bạc #Cryptocarya alba #thuốc nhuộm methylene blue #xúc tác #tổng hợp xanhTài liệu tham khảo
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