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Iron disulfide resin composite material as well as preparation method and application thereof

A resin composite material, iron disulfide technology, applied in chemical instruments and methods, other chemical processes, chemical/physical processes, etc., can solve the problems of high risk of nano-iron disulfide preparation conditions, and achieve easy recycling, The effect of strong selectivity and high adsorption capacity

Pending Publication Date: 2022-02-11
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the problems in the prior art that the preparation conditions of nano-iron disulfide are high and have certain risks, so as to provide a kind of iron disulfide resin composite material and its preparation method and application

Method used

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  • Iron disulfide resin composite material as well as preparation method and application thereof
  • Iron disulfide resin composite material as well as preparation method and application thereof
  • Iron disulfide resin composite material as well as preparation method and application thereof

Examples

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Embodiment 1

[0054] The present embodiment provides a preparation method of an iron disulfide resin composite material, comprising the following steps:

[0055] 10g of commercial cation exchange resin D001 was rinsed with 100ml of 0.1mol / L hydrochloric acid and 500ml of deionized water, respectively, and extracted with ethanol soxhlet to remove impurities in the resin pores;

[0056] The resin after removal of impurities was placed in 1L containing 0.5mol / LFeCl 3 In the 20% ethanol-water solution of 20%, stirred at room temperature for 24h, then the resin was filtered out and dried at 60°C for 12h;

[0057] Transfer 5g of the dried iron-saturated resin to 0.5mol / L NaHS solution prepared with 0.5L deoxygenated water, adjust the pH of the solution to 4.5 with 0.2mol / L sodium acetate-acetic acid buffer solution, seal the system and place it in a water bath. Incubate at 60°C for 24h;

[0058] The filtered iron disulfide resin was rinsed repeatedly with deionized water until the conductivity ...

Embodiment 2

[0060] The present embodiment provides a preparation method of an iron disulfide resin composite material, comprising the following steps:

[0061] 10g of commercial cation exchange resin 001×7 was rinsed with 200ml of 0.1mol / L hydrochloric acid and 500ml of deionized water, and extracted with ethanol soxhlet to remove impurities in the resin pores;

[0062] The resin after removal of impurities was placed in 0.5L containing 0.3mol / LFe 2 (SO 4 ) 3 50% ethanol-aqueous solution, stirred at room temperature for 18 h, then filtered out the resin and dried at 70 °C;

[0063] Transfer 5g of dried iron-saturated resin to 0.3mol / L NH prepared by 0.5L deoxygenated water 4 In the HS solution, adjust the pH of the solution to 4.5 with 0.1mol / L disodium hydrogen phosphate-citric acid buffer solution, seal the system, and place it in a water bath at 70°C for 12h;

[0064] The filtered iron disulfide resin was rinsed repeatedly with deionized water until the conductivity of the filtrate...

Embodiment 3

[0066] The present embodiment provides a preparation method of an iron disulfide resin composite material, comprising the following steps:

[0067] 10g of commercial cation exchange resin IR120 was rinsed with 200ml of 0.1mol / L hydrochloric acid and 500ml of deionized water, and extracted with ethanol soxhlet to remove impurities in the resin pores;

[0068] The resin after removal of impurities was placed in 0.1L containing 0.1mol / LFe (NO 3 ) 3 20% ethanol-aqueous solution, stirred at room temperature for 24 h, then filtered out the resin and dried at 80 °C;

[0069] Transfer 5g of dried iron-saturated resin to 0.1mol / L NaHS solution prepared with 0.05L deoxygenated water, adjust the pH of the solution to 4.0 with 0.1mol / L citric acid-sodium citrate buffer solution, and place it in a closed system. Keep in a water bath at 70°C for 12h;

[0070] The filtered iron disulfide resin was rinsed repeatedly with deionized water until the conductivity of the filtrate did not change...

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Abstract

The invention belongs to the technical field of water treatment, and particularly relates to an iron disulfide resin composite material and a preparation method and application thereof. The iron disulfide resin composite material comprises resin and iron disulfide distributed in pores of the resin, wherein the mass ratio of the iron disulfide to the resin is (0.1-0.2):1, and the particle size of the iron disulfide is 5-50 nm. The iron disulfide resin composite material provided by the invention is stable in physical and chemical properties, strong in anti-interference capability, high in adsorption capacity for heavy metals in water, and easy to separate. Meanwhile, the iron disulfide is distributed in pores of the resin, aggregation of the iron disulfide can be effectively avoided, the reaction activity is enhanced, and in addition, the composite material is easy to recycle and high in economical efficiency.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to an iron disulfide resin composite material and a preparation method and application thereof. Background technique [0002] With the rapid development of economy and society, the problem of environmental pollution is becoming more and more serious. Industry, mining and manufacturing have produced a large amount of wastewater containing heavy metal ions, which will pose a huge threat to human health and ecological security if discharged into the environment without effective treatment. Therefore, the rational design of efficient remediation materials for water pollution problems is a current challenge. [0003] Natural iron-sulfur minerals are widely distributed and environmentally friendly, and can be used as potential environmental remediation materials. For example, the prior art discloses a method for removing heavy metals by combining a biological adsorpt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/32B01J39/17C02F1/28C02F1/42C02F101/20
CPCB01J20/0229B01J20/0285B01J20/265B01J20/3208B01J20/32B01J39/17C02F1/288C02F1/42C02F2001/425C02F2101/20
Inventor 张彤童心陈威
Owner NANKAI UNIV
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