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Hydrothermal Synthesis of Bismuth Sulfide Whiskers by a Template‐Free Approach
Author(s) -
Liu Jun,
Ma Junfeng,
Yao Yan,
Ren Yang,
Lin Botao,
Jiang Xiaohui,
Sun Yong,
Fang Jingrui,
Liu Zhensen
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02464.x
Subject(s) - crystallite , hydrothermal circulation , scanning electron microscope , materials science , thiourea , whiskers , bismuth , hydrothermal synthesis , chemical engineering , lithium (medication) , photoluminescence , sulfide , mineralogy , chemistry , composite material , metallurgy , organic chemistry , medicine , optoelectronics , engineering , endocrinology
Uniform Bi 2 S 3 whiskers were synthesized via a template‐free hydrothermal route using bismuth nitrate (Bi(NO 3 ) 3 ·5H 2 O), thiourea (CS(NH 2 ) 2 ), and lithium hydroxide (LiOH) as starting materials. The resultant powders were characterized in detail by X‐ray diffraction, scanning electron microscopy, and photoluminescent spectra techniques (PL), respectively. It was found that Bi 2 S 3 whiskers could be easily synthesized in the presence of LiOH, whereas only irregular and aggregated particles were obtained without adding LiOH, and that elevating hydrothermal reaction temperature in a certain range would promote the preferred orientation growth of Bi 2 S 3 crystallites. The PL spectra results evidenced that the optical properties of Bi 2 S 3 crystallites were obviously influenced by their size and morphology.