Preparation and application of high-flux emulsion separation material

An emulsion separation, high-throughput technology, applied in the field of materials, to achieve the effect of improving the emulsion separation flux and overcoming the shortcomings of transmission kinetics

Inactive Publication Date: 2020-02-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The content of the present invention aims at the problems existing in the separation flux of the existing emulsion separation materials, and provides the preparation and application of a high-flux emulsion separation material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of CF@MOF(HKUST-1) / PDMS: Dissolve 1.0 g of copper sulfate pentahydrate in 100 mL of deionized water, add 10 g of skin powder, stir at 2000 rpm for 1.0 h, and filter with 200-mesh gauze. Prepared loaded Cu 2+ The skin collagen fibers; will load Cu 2+ The skin collagen fibers were transferred to 500 mL of deionized water containing 2.0 g of trimesic acid, stirred at 1000 rpm for 5.0 min, and left to react for 24 h. The reacted sample was filtered with 200-mesh gauze and mixed with deionized water and anhydrous The CF@MOF (HKUST-1) was obtained after washing with ethanol and drying at 45°C; the CF@MOF (HKUST-1) was crushed and ground with a 0.5 mm sieve, and then placed in 5.0 wt% PDMS twelve CF@MOF(HKUST-1) / PDMS was obtained after soaking in alkane solution for 5.0 min and drying at 45°C;

[0025](2) Preparation of water-in-oil emulsion stabilized by ionic / nonionic compound surfactants: Span 80 (0.05 g) was dissolved in dodecane (100 mL), SDBS (0.01 g) w...

Embodiment 2

[0028] (1) Preparation of CF@MOF(HKUST-1) / PDMS: Dissolve 1.25 g of copper sulfate pentahydrate in 100 mL of deionized water, add 10 g of skin powder, stir at 2000 rpm for 1.0 h, and filter with 200-mesh gauze. Prepared loaded Cu 2+ The skin collagen fibers; will load Cu 2+ The skin collagen fibers were transferred to 500 mL of deionized water containing 3.0 g of trimesic acid, stirred at 1000 rpm for 5.0 min, and left to react for 24 h. The reacted sample was filtered with 200-mesh gauze, and deionized water and anhydrous The CF@MOF (HKUST-1) was obtained after being washed with ethanol and dried at 45 °C; the CF@MOF (HKUST-1) was crushed and ground with a 0.5 mm sieve, and then placed in 5.0 wt% PDMS twelve CF@MOF(HKUST-1) / PDMS was obtained after soaking in alkane solution for 5.0 min and drying at 45°C;

[0029] (2) Preparation of water-in-oil emulsion stabilized by ionic / nonionic compound surfactants: Span 80 (0.05 g) was dissolved in dodecane (100 mL), SDBS (0.01 g) was ...

Embodiment 3

[0032] (1) Preparation of CF@MOF(HKUST-1) / PDMS: Dissolve 1.5 g of copper sulfate pentahydrate in 100 mL of deionized water, add 10 g of skin powder, stir at 2000 rpm for 1.0 h, and filter with 200-mesh gauze to prepare get load Cu 2+ The skin collagen fibers; will load Cu 2+ The skin collagen fibers were transferred to 500 mL of deionized water containing 3.52 g of trimesic acid, mixed thoroughly, stirred at 1000 rpm for 5.0 min, and left to react for 24 h. The reacted sample was filtered with 200-mesh gauze, and deionized water After washing with absolute ethanol, CF@MOF (HKUST-1) was obtained after drying at 45 °C; the CF@MOF (HKUST-1) was crushed and ground with a 0.5 mm sieve, and then placed in a 5.0wt% CF@MOF(HKUST-1) / PDMS was obtained after immersing PDMS in dodecane solution for 5.0 min and drying at 45°C;

[0033] (2) Preparation of water-in-oil emulsion stabilized by ionic / nonionic compound surfactants: Span 80 (0.05 g) was dissolved in dodecane (100 mL), SDBS (0.0...

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PUM

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Abstract

The invention discloses preparation and application of a high-flux emulsion separation material. The preparation comprises: firstly, coordinating metal ions, having a specific concentration, with skincollagen fibers under the action of high-speed stirring; secondly, growing a metal organic framework compound sieving layer on the surface of the skin collagen fibers by controlling the molar concentration ratio of the metal ions to organic ligands and controlling the reaction time; and thirdly, subjecting the obtained metal organic framework compound-modified skin collagen fibers to surface hydrophobic treatment through a low surface energy substance so as to prepare a high-flux emulsion separation material. The emulsion separation material disclosed by the invention can provide high-throughput separation for various surfactant-stabilized microemulsions and nanoemulsions owing to capillary action of the skin collagen fibers.

Description

technical field [0001] The invention relates to the preparation and application of a high-flux emulsion separation material, which belongs to the field of material technology. Background technique [0002] Petrochemical, light industry and iron and steel industries produce a large amount of emulsion wastewater in the production process, causing huge environmental pressure (Putatunda S, Bhattacharya S, Sen D, Bhattacharjee C. A review on the application of different treatment processes for emulsified oily wastewater[J ]. International Journal of Environmental Science and Technology, 2019, 16:2525-2536. Si Y F, Guo Z G. Superwetting materials of oil-water emulsion separation[J]. Chemistry Letters, 2015, 44: 874-883.). In recent years, porous sieving materials have been widely used in the field of emulsion separation (Yang C, Han N, Han C Y, Wang M L, Zhang W X, Wang W J, Zhang Z X, Li W, Zhang X X. Design of a Janus F-TiO 2 @PPS porous membrane withasymmetric wettability for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M15/643C08G83/00B01D61/00B01D69/12B01D67/00D06M101/14
CPCB01D61/00B01D67/0002B01D67/003B01D69/12C08G83/008D06M15/37D06M15/643D06M2101/14
Inventor 黄鑫肖涵中石碧
Owner SICHUAN UNIV
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