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首页> 美国卫生研究院文献>Materials >SnS2 and SnO2 Nanoparticles Obtained from Organotin(IV) Dithiocarbamate Complex and Their Photocatalytic Activities on Methylene Blue
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SnS2 and SnO2 Nanoparticles Obtained from Organotin(IV) Dithiocarbamate Complex and Their Photocatalytic Activities on Methylene Blue

机译：有机锡（IV）二硫代氨基甲酸酯配合物获得的SnS2和SnO2纳米粒子及其对亚甲基蓝的光催化活性

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This work reports the photocatalytic degradation of methylene blue (MB) dye using SnS and SnO nanoparticles obtained from a solvothermal decomposition (in oleylamine) and pyrolysis (in a furnace) processes, respectively, of the diphenyltin(IV) -methylphenyldithiocarbamate complex. The complex, which was used as a single-source precursor and represented as (L = -methylphenyldithiocarbamato), was synthesized and characterized using various spectroscopic techniques and elemental analysis. The structural properties and morphology of the as-synthesized nanoparticles were studied using X-ray diffraction (XRD) technique and transmission electron microscopy (TEM). UV-visible spectroscopy was used to study the optical property. The hexagonal phase of SnS and tetragonal SnO nanoparticles were identified, which exhibited varying sizes of hexagonal platelets and rod-like morphologies, respectively. The direct band gap energies of both materials, estimated from their absorption spectra, were 2.31 and 3.79 eV for SnS and SnO , respectively. The photocatalytic performances of the SnS and SnO nanoparticle, studied using methylene blue (MB) as a model dye pollutant under light irradiation, showed that SnO nanoparticles exhibited a degradation efficiency of 48.33% after 120 min reaction, while the SnS nanoparticles showed an efficiency of 62.42% after the same duration of time. The higher efficiency of SnS compared to the SnO nanoparticles may be attributed to the difference in the structural properties, morphology and nature of the material’s band gap energy.
机译：这项工作报告了分别使用二苯基锡（IV）-甲基苯基二硫代氨基甲酸酯络合物的溶剂热分解（在油胺中）和热解（在炉中）过程中获得的SnS和SnO纳米粒子对亚甲基蓝（MB）染料的光催化降解。使用各种光谱技术和元素分析合成并表征了该配合物，该配合物用作单源前体，并表示为（L =-甲基苯基二硫代氨基甲酸酯）。使用X射线衍射（XRD）技术和透射电子显微镜（TEM）研究了合成纳米颗粒的结构特性和形态。紫外可见光谱用于研究光学性质。确定了SnS和四方SnO纳米颗粒的六方相，分别显示出不同大小的六方晶血小板和棒状形态。从它们的吸收光谱估计，两种材料的直接带隙能分别为SnS和SnO的2.31和3.79 eV。以亚甲基蓝（MB）为模型染料污染物在光照射下研究的SnS和SnO纳米粒子的光催化性能表明，120分钟反应后SnO纳米粒子的降解效率为48.33％，而SnS纳米粒子的降解效率为120。在相同的持续时间后达到62.42％。与SnO纳米颗粒相比，SnS的效率更高可能是由于材料的带隙能量的结构特性，形态和性质不同。

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