CTAB辅助微波水热合成花簇状SnS微球  

Preparation of Flower-Like SnS Microsphere via CTAB Assisted Microwave Hydrothermal Synthesis

作　　者：张培培[1] 黄剑锋[1] 曹丽云[1] 辛宇[1] 

机构地区：[1]陕西科技大学教育部轻化工助剂化学与技术重点实验室,西安710021

出　　处：《无机化学学报》2012年第2期291-296,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.50942047);陕西省自然科学基金(No.2010JM6001);陕西科技大学研究生创新基金资助项目

摘　　要：以氯化亚锡(SnCl2.2H2O)和硫代乙酰胺(TAA)为前驱物,十六烷基三甲基溴化铵(CTAB)为表面活性剂,采用微波水热法控制合成花簇状SnS微球。采用XRD和FESEM等分析手段对制备的样品进行表征。结果表明:合成的产物为正交晶系的SnS微晶,且结晶性良好;SnS微晶是由长方形纳米片自组装而成的花簇状微球。通过改变CTAB用量,可以实现花簇状SnS微晶的形貌和尺寸的调控,并初步分析了其形成过程。利用紫外-可见吸收光谱分析,产物的光学带隙约为1.51 eV;室温光致发光光谱表明,产物在832 nm处具有近红外发光特性。Flower-like nanosheets clusters of SnS were synthesized by the reactions of SnCl2·2H2O and CH3CSNH2 in the presence of CTAB through a microwave hydrothermal process.XRD,FE-SEM were used to characterize the phase compositions and morphologies of as-prepared products.The results indicate that the as-prepared products are orthorhombic structure,The morphology of SnS powders have flower-like nanosheets clusters structure.The amount of CTAB plays an important role in controlling the shape and size of the products.A possible formation mechanism for the SnS with flower-like nanosheets clusters was discussed.UV-Visible spectral analysis shows that the optical band gap of the as-prepared products is about 1.51 eV.Photoluminescence spectrum measured at room temperature shows near-infrared emission at 832 nm.

关 键 词：SNS CTAB 微波水热 花簇状 光学性能 

分 类 号：TQ134.32[化学工程—无机化工]