Preparation method of nano-bismuth trioxide graphene composite membrane electrode for detecting lead ions and cadmium ions
A composite technology of bismuth trioxide and graphene, which is used in measurement devices, material electrochemical variables, material analysis by electromagnetic means, etc., can solve the limitations of graphene research and application, insoluble in water and commonly used organic solvents, etc. problem, to achieve the effect of good linear response, environmental friendliness and high sensitivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0031] A method for preparing a nano bismuth trioxide graphene composite film electrode for detecting lead ions and cadmium ions, comprising the steps of:
[0032] Step 1. Synthesize nano bismuth trioxide, dissolve 0.5mmol bismuth acetate in 45ml dimethylformamide, heat in an autoclave at 180°C for 12h, naturally cool to room temperature, wash with deionized water and ethanol after centrifugation Three times to obtain the precursor of nano bismuth trioxide. Raise the temperature of the nano-bismuth trioxide precursor to 300 °C at a rate of 1 °C / min, and heat it for 2 hours to obtain nano-bismuth trioxide for use;
[0033] Step 2. To synthesize graphene oxide, add 1g of sodium nitrate to 50ml of concentrated sulfuric acid, cool in an ice bath to 0°C, slowly add 2g of natural graphite under stirring conditions, and keep stirring continuously for 30min while keeping the reaction temperature not higher than 5°C , add 6g of potassium permanganate and continue to stir for 30min, then...
specific Embodiment approach 2
[0046] A method for preparing a nano bismuth trioxide graphene composite film electrode for detecting lead ions and cadmium ions, comprising the steps of:
[0047] Step 1. Synthesize nano bismuth trioxide, dissolve 1.0mmol bismuth acetate in 50ml dimethylformamide, heat in an autoclave at 180°C for 10h, naturally cool to room temperature, wash with deionized water and ethanol after centrifugation Three times to obtain the precursor of nano bismuth trioxide. Raise the temperature of the nano-bismuth trioxide precursor to 300 °C at a rate of 0.5 °C / min, and heat-calcine for 3 hours to obtain nano-bismuth trioxide for use;
[0048] Step 2. To synthesize graphene oxide, add 1.5g of sodium nitrate to 50ml of concentrated sulfuric acid, cool in an ice bath to 0°C, slowly add 3g of natural graphite under stirring conditions, and keep stirring continuously for 30min while keeping the reaction temperature not higher than 5°C Finally, add 7g of potassium permanganate and continue to st...
PUM
Property | Measurement | Unit |
---|---|---|
specific surface area | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com