Biomolecule-assisted Solvothermal Synthesis of Bismuth Sulfide Nanorods

Jiasong Zhong 1) ,Weidong Xiang 1,2) ,Lijun Liu 1) ,Xinyu Yang 1) ,Wen Cai 2) ,Jingfeng Zhang 1) and Xiaojuan Liang 1) 1) College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China 2) College of Materials Science and Engineering,Tongji University,Shanghai 200092,China

摘 要：A simple biomolecule-assisted synthetic route has been successfully developed to prepare bismuth sulfide（Bi 2 S 3 ） nanorods under solvothermal conditions.In the synthetic system,pentahydrate bismuth nitrate was employed to supply Bi source and L-cystine was used as sulfide source and complexing agent.The morphology,structure,and phase composition of the as-prepared Bi 2 S 3 products were characterized by X-ray diffraction（XRD）,energy dispersion spectroscopy（EDS）,X-ray photoelectron spectroscopy（XPS）,field-emission scanning electron microscopy（FESEM）,transmission electron microscopy（TEM）,selected area electron diffraction（SAED）,and high-resolution transmission electron microscopy（HRTEM）.The experimental results show that the nanorods have uniform diameter of 100-200 nm and length of 2-4 μm.The possible formation mechanism for the bismuth sulfide nanorods was discussed.

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