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Double metal loaded sodium alginate/carboxymethylcellulose double-functional microballoon adsorbing material and preparation method thereof

A technology of carboxymethyl cellulose and sodium alginate, which is applied in the field of biomass resource utilization and biomass adsorption materials, can solve the problems of difficult separation of single-type ion adsorption powder adsorbents, single raw materials, difficult separation and recovery of powder adsorbents, etc. , to achieve the effect of good biodegradability, simple operation and good economic benefits

Active Publication Date: 2015-11-04
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the raw material that adopts in above-mentioned patent document is single, and the material of preparation only has adsorption capacity to fluorine ion, and existing adsorption material or existence only has adsorption function to a kind of ion in anion, cation, or exists powder adsorbent separation recovery relatively Therefore, the research and development of new biomass dual-function (adsorption capacity for both negative and positive ions) microsphere adsorption materials with high efficiency and low cost can solve the problem of single-type ion adsorption and powder adsorbent separation difficulty at the same time. question

Method used

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  • Double metal loaded sodium alginate/carboxymethylcellulose double-functional microballoon adsorbing material and preparation method thereof
  • Double metal loaded sodium alginate/carboxymethylcellulose double-functional microballoon adsorbing material and preparation method thereof
  • Double metal loaded sodium alginate/carboxymethylcellulose double-functional microballoon adsorbing material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0043] A preparation method of bimetallic sodium alginate / carboxymethyl cellulose bifunctional microsphere adsorption material, comprising the following steps:

[0044] Step 1, dissolving sodium alginate and carboxymethyl cellulose into deionized water at a mass ratio of 19:1, mixing and stirring for 5 hours to obtain a composite sol with a concentration of 2 wt%.

[0045] Step 2: Electrospray the composite sol into a receiving device containing a calcium chloride solution with a concentration of 5wt% by using an electrospray device, stir at a speed of 300r / min for 0.5h, and filter to obtain a gel microgel loaded with calcium ions. ball; the injection conditions of the electrospray device are: the ambient temperature is 40°C, the distance between the receiving device and the nozzle is 10cm, the flow rate is 20mL / h, the voltage is 3kV, and the stainless steel nozzle is No. 8 needle; the electrospray device Such as figure 1 As shown, it includes a high-voltage power supply 1, a...

Embodiment 2

[0048] A preparation method of bimetallic sodium alginate / carboxymethyl cellulose bifunctional microsphere adsorption material, comprising the following steps:

[0049] Step 1, dissolving sodium alginate and carboxymethyl cellulose into deionized water at a mass ratio of 9:1, mixing and stirring for 3 hours to obtain a composite sol with a concentration of 3wt%;

[0050] Step 2: Electrospray the composite sol into a receiving device containing a calcium chloride solution with a concentration of 8wt% by using an electrospray device, stir for 1 hour at a speed of 500 r / min, and filter to obtain gel microspheres loaded with calcium ions The injection conditions of the EFI device are: the ambient temperature is 30°C, the distance between the receiving device and the nozzle is 15cm, the flow rate is 30mL / h, the voltage is 5kV, and the stainless steel nozzle is a No. 6 needle;

[0051] Step 3: Place 8 g of the gel microspheres prepared in step 2 in parts by weight in a Soxhlet extra...

Embodiment 3

[0053] A preparation method of bimetallic sodium alginate / carboxymethyl cellulose bifunctional microsphere adsorption material, comprising the following steps:

[0054] Step 1, dissolving sodium alginate and carboxymethyl cellulose into deionized water at a mass ratio of 10:1, mixing and stirring for 6 hours to obtain a composite sol with a concentration of 2 wt%.

[0055] Step 2: Electrospray the composite sol into a receiving device containing a calcium chloride solution with a concentration of 12 wt% by using an electrospray device, stir for 1 hour at a speed of 100 r / min, and filter to obtain gel microspheres loaded with calcium ions The injection conditions of the EFI device are: the ambient temperature is 20°C, the distance between the receiving device and the nozzle is 20cm, the flow rate is 15mL / h, the voltage is 8kV, and the stainless steel nozzle is a No. 5 needle;

[0056] Step 3. Place 10 g of the gel microspheres prepared in step 2 in parts by weight in a Soxhlet ...

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Abstract

The invention discloses a double metal loaded sodium alginate / carboxymethylcellulose double-functional microballoon adsorbing material and a preparation method thereof. The method comprises the following steps: dissolving sodium alginate and carboxymethylcellulose at a mass ratio of (5-20) to 1 in deionized water, and stirring so as to obtain 1-3wt% compound colloidal sol; electronically spraying the compound colloidal sol into a receiving device containing a 1-20wt% metal ion solution by using an electronic spraying device, stirring, and filtering to obtain metal ion doped gel microballoons; and leaching the gel microballoons, then soaking the leached gel microballoons in a 5-25wt% aluminium chloride solution, stirring to obtain a mixture, adding 0.1-3 parts by volume of a cross-linking agent into the mixture, stirring, filtering, leaching and stoving so as to obtain the double metal loaded sodium alginate / carboxymethylcellulose double-functional microballoon adsorbing material. The preparation method has the characteristics of being simple, low in cost, environmentally friendly, and the like; the material prepared by adopting the method disclosed by the invention has the good application prospect in the aspects of water treatment and the like in fields of chemical engineering, agriculture, environment protection and the like.

Description

technical field [0001] The invention belongs to the technical field of utilization of biomass resources and biomass adsorption materials, and in particular relates to a sodium alginate / carboxymethylcellulose bifunctional microsphere adsorption material loaded with bimetals and a preparation method thereof. Background technique [0002] Sodium alginate and carboxymethyl cellulose are cheap and easy-to-obtain polysaccharide compounds, which have the advantages of being renewable and having a wide range of sources. Sodium alginate is a natural linear polysaccharide, and carboxymethyl cellulose, which is the same polyanion as sodium alginate, can form a three-dimensional space network structure. The similarity of structure makes sodium alginate and carboxymethyl cellulose very similar good compatibility. Sodium alginate and carboxymethyl cellulose are used as raw materials to prepare bifunctional microsphere adsorption materials. Carboxymethyl cellulose macromolecules and sodiu...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F1/58C02F1/62
Inventor 林晓艳吴丽萍王京周秋生罗学刚
Owner SOUTHWEAT UNIV OF SCI & TECH
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