SnS2 nanoflakes were successfully synthesized via a simple hydrothermal process. The as-prepared SnS2 samples were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, nitrogen adsorption-de...SnS2 nanoflakes were successfully synthesized via a simple hydrothermal process. The as-prepared SnS2 samples were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, nitrogen adsorption-desorption isotherms, and UV-vis diffuse reflectance spectroscopy（DRS）. The photocatalytic activities of the as-prepared SnS2 nanoflakes under visible light irradiation（λ〉420 nm） were evaluated by the degradation of rhodamine B（Rh B）. The effect of hydrothermal temperatures on the photocatalytic efficiency of as-prepared SnS2 nanoflakes was investigated. The experimental result showed that SnS2 nanoflakes synthesized at the temprature of 160 o had higher photocatalytic efficiency and good photocatalytic stability.展开更多
A new zero-dimensional（0D） thioborate compound Ba（13）（BS3）6（SnS6）, the first one in the AE/B/Sn/Q（AE=alkali-earth metals; Q=S, Se, Te） family, has been synthesized by conventional high-temperature solid-stat...A new zero-dimensional（0D） thioborate compound Ba（13）（BS3）6（SnS6）, the first one in the AE/B/Sn/Q（AE=alkali-earth metals; Q=S, Se, Te） family, has been synthesized by conventional high-temperature solid-state reaction. It crystallizes in the trigonal space group of R3（No. 148） with a=b=21.4634（6） , c=8.3653（5） , V=3337.4（2） 3, Z=3, Mr=2738.41, Dc=4.088 g/cm3, μ=12.977 mm（-1）, F（000）=3576, the final R=0.0208 and w R=0.0505 with I 〉 2σ（I）, 3.28〈θ〈27.49°, w=1/[σ2（Fo2） ＋（0.0253P）2 ＋ 0.0000P], where P =（Fo2 ＋ 2Fc2）/3, S=1.051,（Δρ）max=0.639 and（Δρ）min=–1.195 e/3. The structure is constructed by discrete [BS3]（3–） trigonal planes and isolated [SnS6]（8–） octahedra with Ba（2＋） cations filled among them. The IR spectrum indicates the presence of lighter element boron. Its optical band gap shown by the UV-Vis-near-IR spectrum is about 2.69 e V, which agrees well with the electronic structure calculation.展开更多
基金Funded by the National Natural Science Foundation of China(No.U1304520)the Education Department of Henan Province(2013GGJS-185)
文摘SnS2 nanoflakes were successfully synthesized via a simple hydrothermal process. The as-prepared SnS2 samples were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, nitrogen adsorption-desorption isotherms, and UV-vis diffuse reflectance spectroscopy（DRS）. The photocatalytic activities of the as-prepared SnS2 nanoflakes under visible light irradiation（λ〉420 nm） were evaluated by the degradation of rhodamine B（Rh B）. The effect of hydrothermal temperatures on the photocatalytic efficiency of as-prepared SnS2 nanoflakes was investigated. The experimental result showed that SnS2 nanoflakes synthesized at the temprature of 160 o had higher photocatalytic efficiency and good photocatalytic stability.
基金supported by the National Natural Science Foundation of China(21233009,21225104,91422303,21301175 and 21171168)
文摘A new zero-dimensional（0D） thioborate compound Ba（13）（BS3）6（SnS6）, the first one in the AE/B/Sn/Q（AE=alkali-earth metals; Q=S, Se, Te） family, has been synthesized by conventional high-temperature solid-state reaction. It crystallizes in the trigonal space group of R3（No. 148） with a=b=21.4634（6） , c=8.3653（5） , V=3337.4（2） 3, Z=3, Mr=2738.41, Dc=4.088 g/cm3, μ=12.977 mm（-1）, F（000）=3576, the final R=0.0208 and w R=0.0505 with I 〉 2σ（I）, 3.28〈θ〈27.49°, w=1/[σ2（Fo2） ＋（0.0253P）2 ＋ 0.0000P], where P =（Fo2 ＋ 2Fc2）/3, S=1.051,（Δρ）max=0.639 and（Δρ）min=–1.195 e/3. The structure is constructed by discrete [BS3]（3–） trigonal planes and isolated [SnS6]（8–） octahedra with Ba（2＋） cations filled among them. The IR spectrum indicates the presence of lighter element boron. Its optical band gap shown by the UV-Vis-near-IR spectrum is about 2.69 e V, which agrees well with the electronic structure calculation.
