TỔNG HỢP, NGHIÊN CỨU ĐẶC TRƯNG CẤU TRÚC VÀ HOẠT TÍNH QUANG XÚC TÁC PHÂN HỦY METYLEN XANH CỦA HỆ NANO SPINEL ZnxNi1-xFe2O4 (x = 0÷0,5)

• Ngôn ngữ: vie
• Thông tin xuất bản: Tạp chí Phân tích Hóa, Lý và Sinh học, 2020
• Mô tả vật lý: tr.6
• Bộ sưu tập: Metadata
• ID: 295999

Tóm tắt

ZnxNi1-xFe2O4 (x=0÷0.5) nanoparticles have been prepared by a solution combustion method usingglycine as fuel. The samples were characterized by X-ray diffraction, scanning electron microscopy, energydispersive X-ray spectroscopy. The XRD results showed that the single-phase Zn2+ substituted nickel ferritenanoparticles exhibit partially inverse spinel structure with the crystallite size of 17 –21 nm. The morphologyof spinel nanoparticles was observed from SEM images and the elemental mapping of Zn-substitutedNiFe2O4 was obtained by using energy dispersive X-ray technique. The maximum photocatalyticdegradation efficiency for Zn0.3Ni0.7Fe2O4 is around (85.2%) when compared to that of NiFe2O4whose efficiency is around (59.82%). The improvement in photocatalytic degradation efficiency is dueto the effective separation and prevention of electron-hole pair recombination.