A kind of silver titanium dioxide-metal organic framework structure composite material and its preparation method and application
A metal-organic framework, titanium dioxide technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, nitrogen preparation, etc., can solve the problems of low efficiency and low nitrogen selectivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0026] The present invention also provides a preparation method of silver titanium dioxide-metal organic framework structure composite material, comprising:
[0027] Step 1: Mix and stir tetraisobutyl titanate, AgMIL-101(Cr), and silver nitrate in an alcohol solvent to obtain a mixed solution;
[0028] Step 2: Put the mixed solution obtained in Step 1 into the reaction kettle, -1 The rate is raised from room temperature to 130-150°C, and kept for 8-12h to obtain a mixture;
[0029] Step 3: Centrifuge, wash and dry the mixture obtained in Step 2 to obtain a silver titanium dioxide-metal organic framework composite material.
[0030] According to the present invention, add tetraisobutyl titanate and AgMIL-101 (Cr) into the alcohol solvent and stir, add silver denitrate and ionized water, stir at a low speed until the solution becomes gelatinous, and obtain a mixed solution; the raw materials are added The sequence is preferably: first add alcohol solvent, then add tetraisobuty...
Embodiment 1
[0042] Add 0.5mL of tetraisobutyl titanate to 25mL of isopropanol, and start stirring at a stirring rate of 150 rpm. During stirring, first add 0.27g of AgMIL-101 (Cr), then add 0.086g, 0.172 g, 0.43g of silver nitrate, and finally add 0.6mL of deionized water, and continue to stir for 4-8h until the mixed solution is called a green gel. Afterwards, the mixture was transferred into a polytetrafluoroethylene-lined reactor and placed in a temperature-programmed oven at 2 °C min -1 The temperature was raised from room temperature to 130°C and kept for 12h, the cooled mixture was taken out, the powder was collected by centrifugation, the obtained powder was washed twice with deionized water, and dried at 80°C for 12h to obtain the silver content of the total catalyst. 1%, 2%, 5% silver titanium dioxide-metal organic framework composites by mass.
[0043] The 5wt%Ag / TiO that embodiment 1 obtains 2 / AgMIL-101 (Cr) surface physical and chemical properties are: average pore diameter...
Embodiment 2
[0045] Add 1 mL of tetraisobutyl titanate to 25 mL of isopropanol, start stirring at a stirring rate of 150 rpm, add 0.54 g of AgMIL-101 (Cr) first, and then add 0.43 g of silver nitrate , and finally add 1mL of deionized water, and continue to stir for 4-8h until the mixed solution is called a green gel. Afterwards, the mixture was transferred into a polytetrafluoroethylene-lined reactor, placed in a temperature-programmed oven, and heated at 2 °C min -1 The temperature was raised from room temperature to 140°C and kept for 10h, the cooled mixture was taken out, the powder was collected by centrifugation, the obtained powder was washed twice with deionized water, and dried at 80°C for 12h to obtain silver titanium dioxide-metal organic framework Structural composites.
[0046] The Ag / TiO that embodiment 2 obtains 2 / AgMIL-101 (Cr) surface physical and chemical properties are: average pore diameter: 3.67nm; BET specific surface area: 346.54m 2 g -1 ;Total pore volume: 0.31...
PUM
Property | Measurement | Unit |
---|---|---|
pore size | aaaaa | aaaaa |
specific surface area | aaaaa | aaaaa |
pore size | 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