Thiol-functional carbon nano tube (CNT) and preparation method and application thereof
A technology of carbon nanotubes and functionalization, which is applied in the field of preparation of mercapto-functionalized carbon nanotubes, can solve the problems of destroying the surface characteristics of gold electrodes, low economic benefits, cumbersome steps, etc., achieve saving of reagents, simple equipment requirements, and easy preparation The effect of process safety
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0027] Example 1:
[0028] The carbon nanotubes needed should be dried at 70°C for 24 hours in advance, weigh 0.6 g 4-aminothiophenol into a three-necked flask, add 15 mL of 1 N, HC1 solution, and slowly heat under stirring At 53°C, the flask was removed and cooled. Weigh 0.828 g of sodium nitrite and dissolve it in 20 mL of deionized water, add the solution to a three-necked flask under continuous stirring, and dissolve the carbon nanotubes and 0.3 g of sodium lauryl sulfate in 30 mL of deionized water , Ultrasonic for 45 min, add the solution to the flask, and react overnight under ice bath and continuous stirring. The solution obtained by the reaction was sequentially washed with acetone, ethanol and a large amount of deionized water to neutrality, and vacuum dried to obtain sulfhydryl functionalized carbon nanotubes (CNT-Ph-SH).
Example Embodiment
[0029] Example 2:
[0030] Weigh 5 mg of sulfhydryl functionalized carbon nanotubes into 5 mL DMF solution, disperse ultrasonically for 40 minutes, centrifuge at 5000 r / min for 15 minutes, separate the upper layer of black carbon nanotube dispersion, and place the gold electrode in sequence Polished with 1.0, 0.3, 0.05 μm alumina powder, then ultrasonicated in deionized water for 5 min, activated in sulfuric acid solution, dried the gold electrode with nitrogen, and immersed in the DMF dispersion of sulfhydryl functionalized carbon nanotubes 20 h. Take out the electrode and dry it with nitrogen to obtain a gold electrode modified with sulfhydryl functionalized carbon nanotubes.
[0031] Adsorption of mercury ions (Hg(II)) We used a three-electrode system for electrochemical adsorption. The gold electrode modified with sulfhydryl functionalized carbon nanotubes was placed in a Hg(II) solution containing 50 nM. After collecting for 15 minutes, transfer the electrode to 0.1M HC1 solu...
Example Embodiment
[0032] Example 3:
[0033] Take 50 mg of sulfhydryl functionalized carbon nanotubes and put them into 25 mL of mercury nitrate solution with an initial concentration of 760 mg / L. Stir and adsorb for 72 hours. After filtering with filter paper, remove part of the Hg(II) solution, and measure Hg(II) with KI volumetric method. ) Content was tested by titration, and the experiment showed that the adsorption capacity was 330 mg / g.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap