SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (9): 1202-1206.DOI: 10.1016/j.cjche.2016.11.002

• Catalysis, kinetics and reaction engineering • Previous Articles     Next Articles

Controllable synthesis of metallic Bi from commercial Bi2O3 via one-pot solvothermal reduction method

Lei Yang, Yangyang Zhang, Hua Li, Hezhou Liu   

  1. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2016-07-12 Revised:2016-11-09 Online:2017-10-11 Published:2017-09-28
  • Supported by:
    Supported by the Natural Science Foundation of China (51373096, 11304198).

Controllable synthesis of metallic Bi from commercial Bi2O3 via one-pot solvothermal reduction method

Lei Yang, Yangyang Zhang, Hua Li, Hezhou Liu   

  1. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 通讯作者: Yangyang Zhang,E-mail:yqzh_xmu@163.com;Hezhou Liu,E-mail:hzhliu@sjtu.edu.cn
  • 基金资助:
    Supported by the Natural Science Foundation of China (51373096, 11304198).

Abstract: Metallic bismuth crystal is one important and interesting semimetal that has attracted great attention owing to its unique thermal and electrical properties. Herein, we report a facile, green, cost-effective and sustainable solvothermal process using ethanol, glycol, isopropanol, phenylcarbinol as solvent and commercial Bi2O3 as the starting material to produce high-purity metallic Bi with tunable morphologies on large scale. It is found that all alcohols are capable of reducing Bi2O3 to Bi and the reducibility of glycol is proved to be the strongest. The highest purity of the resultant Bi is calculated to be 99.74%. What's more, the morphology of final Bi particles is controllable by adding various types and concentrations of additives. As a consequence, our work lays the root for the large scale solvothermal production of high-purity Bi particles with various regular morphologies.

Key words: Solvothermal, Alcohol, Metal, Morphology, Bismuth, Reduction

摘要: Metallic bismuth crystal is one important and interesting semimetal that has attracted great attention owing to its unique thermal and electrical properties. Herein, we report a facile, green, cost-effective and sustainable solvothermal process using ethanol, glycol, isopropanol, phenylcarbinol as solvent and commercial Bi2O3 as the starting material to produce high-purity metallic Bi with tunable morphologies on large scale. It is found that all alcohols are capable of reducing Bi2O3 to Bi and the reducibility of glycol is proved to be the strongest. The highest purity of the resultant Bi is calculated to be 99.74%. What's more, the morphology of final Bi particles is controllable by adding various types and concentrations of additives. As a consequence, our work lays the root for the large scale solvothermal production of high-purity Bi particles with various regular morphologies.

关键词: Solvothermal, Alcohol, Metal, Morphology, Bismuth, Reduction