Immobilized biological adsorption degradable material, preparation method and application thereof
A technology of degrading materials and biological adsorption, applied in chemical instruments and methods, immobilized on or in inorganic carriers, biological water/sewage treatment, etc. It can solve problems such as environmental pollution and achieve good adsorption performance and biocompatibility. Good, no secondary pollution effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] The immobilized bioabsorption degradation material of the present invention uses porous gold nanometer material as a carrier, polyethyleneimine as a modifier, and cutinase is immobilized. The pore diameter of the porous gold nano material is 40-50nm, and the weight average molecular weight of the polyethyleneimine is 10000.
[0028] The preparation method of porous gold nano-adsorption material, the step is,
[0029] 1. Preparation of porous gold nanomaterials
[0030] (1) the Au 42 Ag 58 The alloy was ultrasonically washed in acetone, isopropanone, and ultrapure water, and annealed at 800 °C for 10 h to remove the internal stress of the alloy due to mechanical processing, and the pretreated Au 42 Ag 58 alloy.
[0031] (2) The pretreated Au 42 Ag 58 Alloy made of 5.0 mm×5.0 mm×20 μm Au 42 Ag 58 alloy sheet.
[0032] (3) the Au 42 Ag 58 The alloy sheet was corroded freely in concentrated nitric acid at 30 ℃ for 800 min, and then annealed at 200 ℃ for 1 h to p...
Embodiment 2
[0042] The immobilized bioabsorption degradation material of the present invention uses porous gold nanometer material as a carrier, polyethyleneimine as a modifier, and cutinase is immobilized. The pore diameter of the porous gold nanomaterial is 40-50 nm, and the weight average molecular weight of the polyethyleneimine is 20000.
[0043] 1, the preparation method of porous gold nano-adsorption material, with embodiment 1.
[0044] 2. Preparation method of polyethyleneimine-modified porous gold nanomaterials
[0045] (1) Take 5 mg of NPG prepared by the above method and place it in 1.5 mL of 1 mM lipoic acid solution for 1 h to make the surface carboxylation.
[0046] (2) Put the above-mentioned surface carboxylated NPG in a mixed solution of 2 mL dimethylformamide (DMF) and 0.5 mL pyridine, react at 100 °C for 4 h, add 0.9 mL epichlorohydrin (ECH) and continue at 100 The reaction was carried out at ℃ for 4 h.
[0047] (3) The nanoporous gold material obtained after the ab...
Embodiment 3
[0053] Add 10 mg of the immobilized biosorption degradation material prepared in Example 1 into 100 mL of simulated drinking water with a DEHP concentration of 10 μg / L, perform vibration adsorption degradation at 120 rpm, take it out after 3 hours, and use an ultraviolet spectrophotometer The remaining DEHP in the solution was measured, and the results showed that the removal rate of DEHP by the immobilized biosorption degradation material was 85.8%.
PUM
Property | Measurement | Unit |
---|---|---|
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