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Iron-loaded cotton fiber material and preparation method thereof

A cotton fiber, iron-carrying technology, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., to achieve the effects of easy elution and regeneration, mild reaction conditions and stable performance

Active Publication Date: 2011-07-20
HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for using cotton fiber as a carrier without changing the fiber state of the cotton fiber material, there are relatively few studies on loading iron on the cotton fiber material.

Method used

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  • Iron-loaded cotton fiber material and preparation method thereof
  • Iron-loaded cotton fiber material and preparation method thereof
  • Iron-loaded cotton fiber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Submerge 6g of absorbent cotton fibers in 100mL of 5% ferric chloride solution, raise the temperature to 30°C, and after 2 hours, add 105mL of 1M sodium hydroxide solution dropwise with stirring, and the adding speed is controlled at 1ml / min. When the pH value of the solution rose to 4, the addition of sodium hydroxide was stopped, the solution was poured out, and the fiber was washed with water several times, and the above-mentioned addition process of sodium hydroxide was repeated 6 times. After loading the iron, let it stand for 5 hours, then take it out, wash it with water until it is neutral, and dry it in an oven at 45°C. After weighing, the weight of the fiber increases by 27.8%. Its XRD spectrum and micrograph are as attached figure 1 And shown in Figure 2. from figure 1 It can be seen that the iron in the iron-loaded fiber exists in the form of amorphous hydroxide; it can be seen from Figure 2 that after the absorbent cotton is loaded with iron, it still ma...

Embodiment 2

[0019] Immerse 350g of absorbent cotton fibers in 2000mL of 10% ferric sulfate solution, raise the temperature to 25°C, and after 3 hours, add 2050mL of 0.5M sodium hydroxide solution dropwise under stirring, and the adding speed is controlled at 20ml / min. When the pH value of the solution rose to 4, the addition of sodium hydroxide was stopped, the solution was poured out, and the fiber was washed with water several times, and the above-mentioned addition process of sodium hydroxide was repeated 6 times. After loading the iron, let it stand for 5 hours, then take it out, wash it with water until neutral, and dry it in an oven at 60°C. After weighing, the weight of the fiber increases by 16.9%. Its XRD spectrum and micrograph are as embodiment 1.

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Abstract

The invention discloses an iron-loaded cotton fiber material with absorbent cotton fiber as basic skeleton and a preparation method thereof, belonging to the technical field of macromolecular material. The fiber material structurally contains the hydroxide of amorphous iron. The preparation method thereof comprises the steps of: taking the absorbent cotton fiber as the basic skeleton, loading ferric iron salt solution through dispersion and hydrolysis so that the structure of the fiber contains the hydroxide of amorphous iron. The reaction process is simple, the conditions are moderate, and the reaction agents adopted are nontoxic and environmentally-friendly. The fiber material keeps fibrous shape of the absorbent cotton fiber, has stable performance in air, and causes no pH change of water when being used as adsorbent in the water, and the iron-loaded shape of the adsorbent is stable so that arsenite ions in the water can be adsorbed effectually.

Description

technical field [0001] The invention relates to a fibrous material, in particular to an iron-loaded wool fiber material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Because certain metal oxides or hydroxides have strong adsorption and removal capabilities for inorganic ions such as arsenic and fluorine, these metal oxides or hydroxides are loaded on some carriers to prepare some supported metal oxides. Or the inorganic anion adsorption material of hydroxide has become a research hotspot in this field. At present, the carrier materials used for iron-loaded adsorbents can basically be divided into: (1) natural minerals and inorganic materials. For example, CN200610078899 "a preparation method of tetragonal sulfate lepidosite adsorbent for arsenic removal", CN200610008135 "preparation, use and regeneration method of an iron-manganese composite oxide / diatomite adsorbent" and reports by Yan Yingtao, etc. ...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/28B01J20/32
Inventor 赵亮张小转黄做华沙保峰赵东韩福娇曹继红
Owner HENAN ACADEMY OF SCI CHEM RES INST CO LTD
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