Fe3O4@SiO2 composite material adsorbent preparation method and application
A composite material and adsorbent technology, applied in chemical instruments and methods, adsorption of water/sewage treatment, alkali metal compounds, etc., to achieve strong magnetic separation ability, wide application range, and avoid the effect of salinity ion interference
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0025] (1) Synthesis of paramagnetic ferroferric oxide paramagnetic nanoparticles by chemical co-precipitation method:
[0026] The first step: synthesis of paramagnetic ferroferric oxide paramagnetic nanoparticles: In two 100mL beakers, add 7.95g FeCl respectively 2 ·4H 2 O green crystals and 18.91g FeCl 3 ·6H 2 O yellow crystals, and then dissolve them with an appropriate amount of secondary deionized water to prepare a solution with a concentration of 0.5 mol / L. FeCl after cooling 2 And FeCl 3 The mixed solution was mixed in a three-necked flask to obtain a brown-red oily solution. The filtered FeCl 2 And FeCl 3 The mixed solution was moved into a constant temperature tank with a temperature of 65°C, and ammonia was added dropwise. After the ammonia was added, it was observed that the solution turned brown. At the same time, it was stirred with a stirrer to make it evenly dispersed without agglomeration to form large particles. Until the solution suddenly becomes jet black, co...
Embodiment 2
[0029] The Fe synthesized in step (1) in Example 1 3 O 4 The magnetic microspheres are repeatedly washed with deionized water to remove water-soluble impurities, and finally the product is dried at 60°C to obtain black powder. Take 20mL ethyl orthosilicate, 20ml deionized water, 100μL concentrated hydrochloric acid (volume ratio ethyl orthosilicate: H 2 O: concentrated HCl=200:200:1), in a 100mL polytetrafluoroethylene beaker, use ammonia water to control the pH to 2, and add dry Fe to it 3 O 4 Magnetic microsphere 2.4g, ultrasonic (power 50W) dispersion for 1h, then add 50mL 2% (m / v) xanthan gum solution, ultrasonic dispersion for 1h, put the above beaker in a 60℃ oven, use a glass rod Stir intermittently and dry for later use.
Embodiment 3
[0031] The Fe synthesized in step (1) in Example 1 3 O 4 The magnetic microspheres are repeatedly washed with deionized water to remove water-soluble impurities, and finally the product is dried at 60°C to obtain black powder. Take 40ml ethyl orthosilicate, 40ml deionized water, 200μL concentrated hydrochloric acid (volume ratio ethyl orthosilicate: H 2 O: concentrated HCl=200:200:1), in a 100mL polytetrafluoroethylene beaker, use ammonia water to control the pH to 2, and add dry Fe to it 3 O 4 Magnetic microsphere 2.4g, ultrasonic (power 50W) dispersion for 1h, then add 50mL 2% (m / v) xanthan gum solution, ultrasonic dispersion for 1h, put the above beaker in a 60℃ oven, use a glass rod Stir intermittently and dry for later use.
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com