The hydrothermal synthesis and properties of Sm2O(CO3)(2)center dot xH(2)O using g-C3N4 as raw material

Key Words:CRYSTAL-STRUCTURE; LUMINESCENCE PROPERTIES; CATALYTIC-PROPERTY; OPTICAL-ABSORPTION; SM3+; PERFORMANCE; TEMPERATURE; PHOSPHOR; IONS; FLUX

Abstract:A novel 1064 nm laser stealth absorbent of samarium oxide carbonate hydrate (Sm2O(CO3)(2)center dot xH(2)O) nanomaterial has been prepared by hydrothermal treatment of g-C3N4 in Sm(NO3)(3) solution. The samples were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDX), transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) and UV-VIS-NIR spectrophotometer. The results showed g-C3N4 was unstable during the hydrothermal process, and it was the carbon source of Sm2O(CO3)(2)center dot xH(2)O. The obtained Sm2O(CO3)(2)center dot xH(2)O particles was about 100 nm in size, changing from spherical to rod with the prolongation of reaction time. The samples showed a narrow absorption peak at 1068 nm, which means they would have application as 1064 nm laser absorbents. The photothermal curves showed Sm2O(CO3)(2)center dot xH(2)O particles can convert the absorbed 1064 nm laser into thermal energy. As the reaction time prolongs, the NIR absorption and photothermal conversion performance increase first and then decreases, the sample obtained at 200 degrees C for 24 h has the best absorption rate and photothermal conversion performance.

Volume:241

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Translation or Not:no