Photochemical synthesis and characterization of Bi2S3 nanofibers

被引：45

作者：

Zhao, WB ^{[1
]}

Zhu, JH ^{[1
]}

Zhao, Y ^{[1
]}

Chen, HY ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Coordinat Chem, Inst Analyt Chem, Dept Chem, Nanjing 210093, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2004年 / 110卷 / 03期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

photochemical; semiconductors; scanning electron microscopy (SEM); X-ray photoelectron spectroscopy (XPS) nanofibers;

D O I：

10.1016/j.mseb.2004.03.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bismuth sulfide (Bi2S3) nanofibers have been successfully prepared by a photochemical method from an aqueous solution of bismuth nitrate (Bi(NO3)(3)) and thioacetamide (TAA) in the presence of complexing agents of nitrilotriacetic acid (NTA) at room temperature. It was found that the irradiation time, the pH of the solution, and the species of complexing agents play important roles in the morphology control of the bismuth sulfate (Bi2S3) nanomaterials. The nanofibers were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), electron diffraction (ED), high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectra (XPS), and UV-Visible absorption spectra (UV-Vis). Probable mechanisms for the photochemical formation of Bi2S3 nanofibers in aqueous solutions are proposed. The photochemical method is a convenient approach for controlling the shape for other metal sulfide semiconductor nanocrystals. (C) 2004 Published by Elsevier B.V.

引用

页码：307 / 313

页数：7

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