Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, China; Tianjin Key Laboratory of Biosensing and Molecular Recognition, Tianjin 300071, China.
Shenyang Branch, Shimadzu (China) Co., Ltd, China.
J Colloid Interface Sci. 2017 Dec 1;507:225-233. doi: 10.1016/j.jcis.2017.07.053. Epub 2017 Jul 18.
Using Sn instead of Sn as Sn source, HO as oxidizer, and l-cysteine as sulphur source and structure-directing agent, hierarchical SnS nanostructure built with the thickness of 10nm nanosheets was successfully synthesized by a green hydrothermal process. The morphology and structure of the products were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) with energy-dispersive X-ray spectrometer (EDS) and Elemental mapping, Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The as-prepared nanostructured SnS nanomaterials were tested for adsorption of Rhodamine B (RhB) from aqueous solution. The effects of contact time, adsorbent dosage and initial concentration were investigated in detail. The adsorption kinetic data were well fitted to the pseudo-second-order model and the equilibrium adsorption data were well described by the Langmuir isotherm model, with a maximum capacity of 200.0mgg. This study provides a novel approach to obtain metal sulfide nanostructures using low-valence metal salts.
使用 Sn 代替 Sn 作为 Sn 源，HO 作为氧化剂，l-半胱氨酸作为硫源和结构导向剂，通过绿色水热法成功合成了厚度为 10nm 纳米片的具有层次结构的 SnS 纳米结构。通过 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、带有能量色散 X 射线光谱仪 (EDS) 和元素映射的透射电子显微镜 (TEM) 研究了产物的形态和结构，傅立叶变换红外光谱 (FT-IR) 和 X 射线光电子能谱 (XPS)。所制备的纳米结构 SnS 纳米材料用于从水溶液中吸附 Rhodamine B (RhB)。详细研究了接触时间、吸附剂用量和初始浓度的影响。吸附动力学数据很好地符合拟二级模型，平衡吸附数据很好地符合 Langmuir 等温线模型，最大容量为 200.0mgg。本研究为使用低价金属盐获得金属硫化物纳米结构提供了一种新方法。
