Preparation and characterization of hollow carambola-shaped silver sulfide microspheres using a microwave-assisted template-free method  

作　　者：Wei Su Rong Li Yan-Jun Xing 

机构地区：[1]College of Chemistry. Chemical Engineering and Biotechnology of Donghua University, Shanghai 201620. China [2]National Engineering Research Center for Dyeing & Finishing of Textiles, Shanghai 201620, China

出　　处：《Chinese Chemical Letters》2016年第3期451-453,共3页中国化学快报（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities(No.2232013A3-05);the National Science and Technology Ministry(No.ID 2012BAK30B03)

摘　　要：A simple and convenient method, free of template, has been proposed to synthesize hollow carambolashaped Ag2 S microspheres with Ag NO3, thiourea（TU）, Na Cl and diethanolamine as reagents using a microwave-assisted method, at low temperatures of below 100 ℃. Powder X-ray diffraction（XRD）,scanning electron microscopy（FESEM） and high resolution transmission electron microscopy（HRTEM）were employed to characterize the morphology and composition of those microspheres. The results indicated that the hollow carambola-shaped silver sulfide microspheres（with high purity and homogeneous morphology） were prepared by an Ostwald ripening process. A possible formation mechanism of hollow carambola-shaped Ag2 S microspheres was proposed.A simple and convenient method, free of template, has been proposed to synthesize hollow carambolashaped Ag2 S microspheres with Ag NO3, thiourea（TU）, Na Cl and diethanolamine as reagents using a microwave-assisted method, at low temperatures of below 100 ℃. Powder X-ray diffraction（XRD）,scanning electron microscopy（FESEM） and high resolution transmission electron microscopy（HRTEM）were employed to characterize the morphology and composition of those microspheres. The results indicated that the hollow carambola-shaped silver sulfide microspheres（with high purity and homogeneous morphology） were prepared by an Ostwald ripening process. A possible formation mechanism of hollow carambola-shaped Ag2 S microspheres was proposed.

关 键 词：Silver sulfide Hollow carambola-shaped Microwave-assisted method Template-free 

分 类 号：TQ131.22[化学工程—无机化工]