Preparation method and application of carboxylated single-walled carbon nanotube-alginic acid solid phase extracting disk
A single-walled carbon nanotube, carbon nanotube technology, applied in inorganic chemistry, other chemical processes, alkali metal compounds, etc., can solve the problems of poor extraction and enrichment capacity, high price, and few solid-phase extraction disks, and achieves operation Simple, easy to save, wide-ranging effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0031] Example 1 : Preparation of SWCNT-COOH-alginate solid phase extraction disk
[0032] This embodiment is a preparation method of the SWCNT-COOH-alginate extraction disk of the present invention. The following combination figure 1 The preparation method of the carboxylated single-walled carbon nanotube extraction disk covered with alginic acid polymer is described in detail as follows:
[0033] First, the dispersion of carbon nanotubes. Weigh 60 mg of carboxylated single-walled carbon nanotubes (Times Nanomaterials Company, Chengdu; outer diameter and inner diameter are 1.5-2.5nm and 1.0-2.0nm, respectively; specific surface area is 297.72m 2 / g, purity 95%) was added to 50 mL of 5% sodium dodecyl sulfonate solution, and ultrasonicated for 30-60 minutes.
[0034] Secondly, the carboxylated single-walled carbon nanotube film was prepared. The obtained fully dispersed carboxylated single-walled carbon nanotube suspension was filtered under negative pressure with quantitative fil...
Example Embodiment
[0038] Example 2 :The morphology of the SWCNT-COOH-alginate solid phase extraction disk of the present invention
[0039] This example shows the morphology and structure of the SWCNT-COOH-alginate solid phase extraction disk of the present invention:
[0040] Use digital camera and scanning electron microscope S-3000N (SEM, Hitachi) to observe the morphology of the SWCNT-COOH-alginate extraction disk of the present invention (see figure 2 with image 3 ). The diameter of the in-phase extraction disk is 47mm, the surface particles are evenly distributed, and there is no block structure; the thickness of the carbon nanotube film on the extraction disk is the same, between 35-40μm, the density of the carboxylated single-walled carbon nanotubes on the extraction disk is 0.86 -0.99mg / cm 3 . It can be seen from the cross-sectional view of the extraction disk that during the preparation of the extraction disk, the carbon nanotube particles form a thin film of carbon nanotubes and adher...
Example Embodiment
[0041] Example 3 :Extraction performance test of SWCNT-COOH-alginate extraction disk of the present invention
[0042] This embodiment is an experiment of extraction and enrichment of organic pollutants in water samples with the SWCNT-COOH-alginate extraction disk of the present invention.
[0043] The experimental method is as follows: Figure 4 As shown, the solid phase extraction disk was activated with 10 mL of methanol before use, and then washed with 10 mL of Milli-Q water. A vacuum filter device is used to extract the water sample. Water samples of different volumes can be pre-treated through the activated extraction plate. After all the water samples have passed through the extraction disk, the remaining water can be removed by vacuuming for about 5 minutes, and then the extraction disk is eluted with 10-15 mL of acetonitrile or acidic acetonitrile solution, and the eluent is collected with a test tube. In this process, the eluent should be dripped along the inner wall ...
PUM
Property | Measurement | Unit |
---|---|---|
Density | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap