离子液体中微波合成纳米结构的Bi_2S_3和Bi_(19)Br_3S_(27)  

Microwave-assisted Synthesis of Bi_2S_3 and Bi_(19)Br_3S_(27) Nanostructures in Ionic Liquids

作　　者：杨振江[1] 宋家奎[1] 郑明波[1] 廖书田[1] 陈惠钦[1] 姬广斌[1] 王海燕[1] 曹洁明[1] 

机构地区：[1]南京航空航天大学材料与科学技术学院纳米材料研究所,南京210016

出　　处：《化学学报》2008年第22期2558-2562,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(No.50502020);江苏省自然科学基金(No.BK2006195)资助项目.

摘　　要：在不同咪唑基离子液体中,利用微波辅助法快速合成了不同形貌的Bi2S3纳米粒子和Bi19Br3S27纳米棒.利用XRD,TEM和SEM对合成产物进行了结构和形貌的表征.实验结果表明离子液体在合成过程中对产物的相结构和形貌发挥了重要的作用.实验中还进一步考察了不同实验条件对产物形貌的影响.对实验的合成机理进行了初步探讨.对不同形貌和纳米结构的Bi2S3和Bi19Br3S27进行了UV-Vis光谱分析.Bi2S3 nanoparticles and Bil9Br3S27 nanorods have been synthesized rapidly via microwave irradation in different imidazolium-based ionic liquids. The as-synthesized products were characterized by XRD, TEM and SEM. The results showed that the ionic liquids played an important role in the phase structrue and the morphology of the products. Besides, comparing experiments were further performed about the influence on morphology. The formation mechanism was discussed briefly. Moreover, the UV-Vis absorption spectra were analyzed for Bi2S3 and BiI9Br3S27 with different morphologies and nanostructures.

关 键 词：离子液体 硫化铋 微波 

分 类 号：TB383.1[一般工业技术—材料科学与工程]