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Application of brown seaweed polysaccharide, brown seaweed oligosaccharide as well as derivatives of brown seaweed polysaccharide and brown seaweed oligosaccharide in preparation of adsorbent for adsorbing atmospheric pollutants

A technology for atmospheric pollutants and fucoidan, applied in other chemical processes, using liquid separating agents, dispersing particle filtration, etc., can solve problems such as adverse effects and hazards of materials, and achieve good market application prospects.

Inactive Publication Date: 2015-03-25
MARINE BIOMEDICAL RES INST OF QINGDAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in a certain range of the atmosphere, there are trace substances that did not exist before, and their quantity and duration may have adverse effects and hazards on people, animals, plants, objects, and materials.

Method used

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  • Application of brown seaweed polysaccharide, brown seaweed oligosaccharide as well as derivatives of brown seaweed polysaccharide and brown seaweed oligosaccharide in preparation of adsorbent for adsorbing atmospheric pollutants
  • Application of brown seaweed polysaccharide, brown seaweed oligosaccharide as well as derivatives of brown seaweed polysaccharide and brown seaweed oligosaccharide in preparation of adsorbent for adsorbing atmospheric pollutants
  • Application of brown seaweed polysaccharide, brown seaweed oligosaccharide as well as derivatives of brown seaweed polysaccharide and brown seaweed oligosaccharide in preparation of adsorbent for adsorbing atmospheric pollutants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The structural information of the fucoidan, fucoidan oligosaccharide or its derivatives selected in the present invention is as follows: the degree of polymerization of the said fucoidan is >30; the degree of polymerization of the said fucoidan is 2-30; Can be β-D-(1,4)-linked polymannuronate (PM), α-L-(1,4)-linked polyguluronate (PG) and PG PMG, the fragment that alternately copolymerizes with PM, is three different structural fragments in the alginic acid molecule; the active groups on the C2, C3 and C6 positions of the three different structural fragments can be derivatized, such as at the C2 and C3 positions of PMG Sulphate was introduced as the anti-HIV phase II clinical drug polyglycolic acid 911, and then propylene glycol was introduced at the C6 position to be the marine drug diester sodium alginate PSS for the treatment of hyperlipidemia, etc. The structural formula is as follows:

[0025]

[0026] Weigh the fucoidan, fucoidan oligosaccharide or its derivat...

Embodiment 2

[0036] Inorganic salt ions (such as NH 4 + , NO 3 - ions, etc.) and heavy metals (including elements and ions) are important components of air pollutants and PM 2.5 common components in . Based on the concentration of inorganic ions in the air, prepare 0.01mol / L (NH 4 ) 2 SO 4 , 0.02mol / L NH 4 NO 3and 0.001mol / L Pb(NO 3 ) 2 solution to simulate the concentration of inorganic ions in an aerosol. Add marine sugars to the solution, and use the conductivity as an indicator to investigate the adsorption or complexation of NH in the solution by marine sugars 4 + , SO 4 2- , Pb 2+ and NO 3 - The role of plasma.

[0037] Experimental operation steps:

[0038] (1) Prepare solutions and measure the conductivity of each solution.

[0039] (2) Each inorganic salt solution was mixed with each carbohydrate solution in pairs, and the electrical conductivity after mixing was measured.

[0040] (3) Calculate the decrease rate of electrical conductivity.

[0041] The exper...

Embodiment 3

[0046] Embodiment 3, composite experiment

[0047] λ and κ are used to represent λ-carrageenan and κ-carrageenan respectively, AGA represents agar, and CHI represents chitosan (oligo) sugar.

[0048] Experimental operation steps:

[0049] (1) Prepare solutions and measure the conductivity of each solution.

[0050] (2) Mix each inorganic salt solution with the compound carbohydrate solution respectively, and measure the electrical conductivity after mixing.

[0051] (3) Calculate the decrease rate of electrical conductivity.

[0052] The experimental results are shown in Table 3 below, and the sugar solution is named "mass concentration + molecular weight (kDa) + species".

[0053] Table 3 Reduction rate of conductivity caused by compound solution (%)

[0054]

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Abstract

The invention provides the application of brown seaweed polysaccharide, brown seaweed oligosaccharide as well as derivatives of the brown seaweed polysaccharide and the brown seaweed oligosaccharide in preparation of an adsorbent for adsorbing atmospheric pollutants, wherein the brown seaweed polysaccharide has the degree of polymerization more than 30, and the brown seaweed oligosaccharide has the degree of polymerization of 2-30; the absorbent is prepared by preparing the seaweed polysaccharide, the brown seaweed oligosaccharide as well as the derivatives of the brown seaweed polysaccharide and the brown seaweed oligosaccharide into a water solution or glycerin solution with the mass volume concentration of 0.1mu g / mL-2000mg / mL. The prepared adsorbent is very wide in application field. The using method of the adsorbent is as follows: the adsorbent is arranged in the nasal cavity in any acceptable way; for instance, the adsorbent can be arranged on safety appliances such as a mask, a face mask, a head sleeve, a helmet; the adsorbent is arranged close to an outlet of equipment for discharging the atmospheric pollutant in a room, a factory, an automobile and the like in any acceptable way; therefore, the adsorbent has good market application prospect.

Description

technical field [0001] The present invention relates to a new application of fucoidan and its derivatives, in particular to the application of fucoidan, fucoidan oligosaccharide and their derivatives in preparing an adsorbent for adsorbing air pollutants. Background technique [0002] In a dry atmosphere, the constant gas composition is negligible. However, in a certain range of the atmosphere, there are trace substances that did not exist before, and their quantity and duration may have adverse effects and harm on people, animals, plants, objects and materials. The phenomenon that the concentration of pollutants in the atmosphere or the secondary pollutants transformed by it reaches a harmful level is called air pollution. [0003] According to the state of existence of air pollutants, they can be divided into aerosol pollutants and gaseous pollutants. [0004] Aerosol pollutants generally include dust (particle size 1-200 μm), fly ash, smoke (particle size range 0.01-1 μ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01D46/00B01D47/06B01D53/02
CPCB01J20/24B01D46/0001B01D46/0036B01D47/06B01D53/02
Inventor 管华诗夏萱王成王世欣庄波高会旺祁建华刘晓环姚小红
Owner MARINE BIOMEDICAL RES INST OF QINGDAO CO LTD
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