CẤU TRÚC, HÌNH THÁI HỌC, TỪ TÍNH VÀ TÍNH CHẤT QUANG CỦA NANO FERRITE CuxMg1-xFe2O4 (x = 0, 0.5, 1) TỔNG HỢP BẰNG PHƯƠNG PHÁP ĐỒNG KẾT TỦA
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Spinel ferrite; Hạt nano; Vật liệu sắt từ; Siêu thuận từ.Tóm tắt
Các hạt nano CuxMg1-xFe2O4 đã được tổng hợp thành công bằng phương pháp đồng kết tủa. Các mẫu được nung ở 900 oC trong 3 giờ, theo phổ XRD mẫu Cu0.5Mg0.5Fe2O4 có cấu trúc đơn pha dạng lập phương, trong khi đó, mẫu CuFe2O4 và MgFe2O4 có sự xuất hiện của pha Fe2O3. Từ độ bão hòa của Cu0.5Mg0.5Fe2O4 nằm trong khoảng giữa giá trị từ độ bão hòa của CuFe2O4 và MgFe2O4. CuFe2O4 là vật liệu sắt từ, Cu0.5Mg0.5Fe2O4 và MgFe2O4 là vật liệu siêu thuận từ. Tất cả các spinel ferrite được đánh giá một số tính chất như SEM, FT-IR, EDS và phổ UV-vis.
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