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Method for controllably synthesizing bismuth-based nano-material by directly electrolyzing metal bismuth

A nanomaterial and metal technology is applied in the field of direct electrolytically controlled synthesis of bismuth-based nanomaterials from metallic bismuth, and achieves the effects of cheap and easy-to-obtain raw materials, uniform product appearance, and increased bismuth content

Active Publication Date: 2012-05-16
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few reports on the controlled electrolytic synthesis of nano-bismuth compounds directly from metal bismuth.

Method used

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  • Method for controllably synthesizing bismuth-based nano-material by directly electrolyzing metal bismuth
  • Method for controllably synthesizing bismuth-based nano-material by directly electrolyzing metal bismuth
  • Method for controllably synthesizing bismuth-based nano-material by directly electrolyzing metal bismuth

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Embodiment 1

[0025] Example 2

Embodiment 2

[0027] Example 3

Embodiment 3

[0029] Example 4

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Abstract

The invention discloses a method for controllably synthesizing a bismuth-based nano-material by directly electrolyzing metal bismuth. In the electrolysis process of the method, metal bismuth serves as a sacrificial anode, mixed aqueous solution of sodium chloride, disodium ethylene diamine tetraacetic acid and sodium hydroxide serves as electrolyte, direct current is electrified for electrolyzing, and the proportion of electrolyte components is adjusted so as to prepare the bismuth-base nano-material. The method has the advantages of cheap and ready available raw materials used in the preparing process, controllable batch production of nano-grade high-purity Bi, BiOCl, Bi24O31CL10 or Bi2O2.33, reusable electrolyte, high compatibility with the environment.

Description

technical field [0001] The invention relates to a method for synthesizing bismuth-based nanomaterials, in particular to a method for synthesizing bismuth-based nanomaterials through direct electrolysis and control of metal bismuth. Background technique [0002] The unique surface effect, small size effect, quantum effect, macroscopic quantum tunneling effect and dielectric confinement effect of nanomaterials make nanomaterials not only have macroscopic material properties, but also have excellent physical and chemical properties. attention. As an important doping material, bismuth has unique advantages in optics, magnetism, and electricity. Among them, hexagonal bismuth is a potential good thermoelectric material at room temperature. Theoretical studies have predicted that nanobismuth has more excellent thermoelectric properties; nanobismuth oxychloride exhibits excellent performance in catalytic oxidation, inorganic pigments, and photoluminescence. ; Bismuth oxide is curr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/00C25C5/02C01G29/00
Inventor 陈光房国丽王雄刘金强
Owner NANJING UNIV OF SCI & TECH
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