Preparation and application of a heavy metal ion adsorption fiber with wide pH range
A technology for absorbing heavy metal ions and fibers, applied in ion exchange, fiber treatment, cation exchange, etc., can solve the problems of slow adsorption rate, slow adsorption and desorption speed, and inapplicability, and achieve easy recycling, wide application prospects, and adsorption fast effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0032] A certain mass of polypropylene fiber is added to a solution of acrylic acid ethanol / water (volume ratio 1:5) with a volume fraction of 35%, ferrous ammonium sulfate with a mass fraction of 2.0%, and concentrated sulfuric acid with a volume fraction of 0.5%. Nitrogen was passed for 10 minutes, irradiated with a high-energy electron beam according to the irradiation dose of 60KGy, taken out and washed, and the polypropylene fiber grafted with acrylic acid with a grafting rate of 68.86% was obtained, and then added to the fiber with 1.5mol / l hydrogen Sodium oxide was dissolved in a solution of 5-aminosalicylic acid with a mass fraction of 10%, heated at 85° C. for 4 hours, taken out and washed to obtain a heavy metal ion adsorption fiber with a 5-aminosalicylic acid content of 1.09 mmol / g.
[0033]Take about 0.1g of the above-mentioned heavy metal ion adsorption fiber, under the condition of pH=2, the static adsorption volume is 100ml and the concentration is 10mg / l Pb(II)...
Embodiment 2
[0036] A certain mass of polypropylene fiber is added to acrylic acid ethanol / water (volume ratio 1:4) solution with a volume fraction of 40%, ferrous ammonium sulfate with a mass fraction of 2.5%, and concentrated sulfuric acid with a volume fraction of 1.5%. Nitrogen for 10 minutes, irradiated with a high-energy electron beam according to the irradiation dose of 100KGy, took it out and washed it, and obtained a polypropylene fiber grafted with acrylic acid with a grafting rate of 72.39%. Sodium-dissolved 20% 5-aminosalicylic acid solution was heated at 110° C. for 5 hours, taken out and washed to obtain a heavy metal ion adsorption fiber with a 5-aminosalicylic acid content of 1.66 mmol / g;
[0037] Take about 0.1g of the above-mentioned heavy metal ion adsorption fiber, under the condition of pH=5, under the magnetic stirrer stirring, the static adsorption volume is 150ml, and the removal rate of Pb(II) and Cd(II) with a concentration of 10mg / l are respectively 96.43% and 99...
Embodiment 3
[0040] A certain mass of polypropylene fiber is added to a solution of 40% acrylic acid ethanol / water (volume ratio: 1:3) by volume, 2% ammonium ferrous sulfate is added, and 0.6% concentrated sulfuric acid is added by volume. Nitrogen was blown for 10 minutes, irradiated with a high-energy electron beam according to the irradiation dose of 70KGy, taken out and washed, and a polypropylene fiber grafted with acrylic acid was obtained with a grafting rate of 77.36%. Then it is added to the solution of 5-aminosalicylic acid with a mass fraction of 25% dissolved in 2mol / l sodium hydroxide, heated at 92°C for 6h, taken out and washed to obtain the content of 5-aminosalicylic acid 1.24mmol / g heavy metal ion adsorption fiber;
[0041] Take about 0.1g of the above-mentioned heavy metal ion adsorption fiber, under the condition of pH=9, the static adsorption volume is 100ml and the concentration is 50mg / l Pb(II) and Cd(II) under the condition of magnetic stirrer stirring, the removal r...
PUM
Property | Measurement | Unit |
---|---|---|
adsorption capacity | aaaaa | aaaaa |
adsorption capacity | aaaaa | aaaaa |
adsorption capacity | 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