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Glass fiber-based modified adsorbent and preparation method thereof

A glass fiber and adsorbent technology, which is applied in the field of glass fiber-based modified adsorbent and its preparation, can solve the problems of complex toxicity of compound pollutants, deepening environmental pollution, and no research on adsorbents, etc., to improve selective adsorption capacity , Improving the adsorption performance and increasing the number of adsorption active sites

Inactive Publication Date: 2020-07-10
宋家豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] heavy metal Cu 2+ One of the most common heavy metal pollution of ions, and as people's research found that the pollution of polycyclic aromatic hydrocarbons (PAHs) is increasing day by day, studies have shown that in Cu 2+ In the coexistence system of ions and polycyclic aromatic hydrocarbons, the heavy metal Cu 2+ Ions will form complex compounds with polycyclic aromatic hydrocarbons through cation-π bonds, and the toxicity of the compound pollutants produced by the combination of the two is more complex, which further deepens the pollution of the environment, and the existing technology does not target Cu 2+ The study of adsorbents in the coexistence system of ions and polycyclic aromatic hydrocarbons brings inconvenience to our practical application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] S1: Prepare materials:

[0051] Prepare absolute ethanol, ethylenediamine, chromium nitrate nonahydrate, 3-aminopropyltrimethoxysilane, 2-hydroxyterephthalic acid, hydrofluoric acid and N,N-dimethylformamide in proportion, and set aside;

[0052] Prepare graphene oxide, polyvinyl alcohol, formaldehyde, dilute sulfuric acid, fruit shell, potassium hydroxide, surfactant, glass fiber, ethyl acetate and nitric acid in proportion, and set aside;

[0053] S2: Preparation of pretreated glass fiber:

[0054] Take glass fiber, crush and grind, pass through 80-mesh sieve, then add ethyl acetate and N,N-dimethylformamide, stir for 20 minutes, filter with suction, wash the surface of ethyl acetate, then place in nitric acid solution, at 90°C Heat until the surface of the material turns white, filter, wash and dry to obtain pretreated glass fiber.

[0055] : Preparation of pretreated activated carbon:

[0056] Put the fruit shell in a muffle furnace, keep it warm at 400°C for 1.5...

Embodiment 2

[0065] S1: Prepare materials:

[0066] Prepare absolute ethanol, ethylenediamine, chromium nitrate nonahydrate, 3-aminopropyltrimethoxysilane, 2-hydroxyterephthalic acid, hydrofluoric acid and N,N-dimethylformamide in proportion, and set aside;

[0067] Prepare graphene oxide, polyvinyl alcohol, formaldehyde, dilute sulfuric acid, fruit shell, potassium hydroxide, surfactant, glass fiber, ethyl acetate and nitric acid in proportion, and set aside;

[0068] S2: Preparation of pretreated glass fiber:

[0069] Take glass fiber, crush and grind, pass through 80-mesh sieve, then add ethyl acetate and N,N-dimethylformamide, stir for 25 minutes, filter with suction, wash the surface of ethyl acetate, then place in nitric acid solution, at 92°C Heat until the surface of the material turns white, filter, wash and dry to obtain pretreated glass fiber.

[0070] : Preparation of pretreated activated carbon:

[0071] Put the shell in a muffle furnace, keep it warm at 405°C for 1.8 hours...

Embodiment 3

[0080] S1: Prepare materials:

[0081] Prepare absolute ethanol, ethylenediamine, chromium nitrate nonahydrate, 3-aminopropyltrimethoxysilane, 2-hydroxyterephthalic acid, hydrofluoric acid and N,N-dimethylformamide in proportion, and set aside;

[0082] Prepare graphene oxide, polyvinyl alcohol, formaldehyde, dilute sulfuric acid, fruit shell, potassium hydroxide, surfactant, glass fiber, ethyl acetate and nitric acid in proportion, and set aside;

[0083] S2: Preparation of pretreated glass fiber:

[0084]Take glass fiber, crush and grind it, pass it through a 80-mesh sieve, add ethyl acetate and N,N-dimethylformamide, stir for 30 minutes, filter with suction, wash the surface of ethyl acetate, and then place it in nitric acid solution, at 95°C Heat until the surface of the material turns white, filter, wash and dry to obtain pretreated glass fiber.

[0085] : Preparation of pretreated activated carbon:

[0086] Put the fruit shell in a muffle furnace, keep it warm at 410°...

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Abstract

The invention discloses a glass fiber-based modified adsorbent and a preparation method thereof. The modified adsorbent is prepared from a porous adsorption material, anhydrous ethanol and ethylenediamine, and the porous adsorption material comprises nitric acid nonahydrate, 3-aminopropyltrimethoxysilane, modified graphene oxide, pretreated glass fiber and other components; the invention disclosesa glass fiber-based modified adsorbent and a preparation method thereof. The process design is reasonable, the component proportion is proper, the prepared modified adsorbent not only has excellent heavy metal ion adsorption performance, but also has excellent selective adsorption performance on polycyclic aromatic hydrocarbon, and detection finds that the modified adsorbent still has excellent adsorption performance under the condition that Cu< 2+> ions and polycyclic aromatic hydrocarbon coexist; and the modified adsorbent is loaded by the pretreated glass fiber, so that the recovery convenience is greatly improved, the recovery efficiency is high, and the modified adsorbent can be applied to multiple application fields and has relatively high practicability.

Description

technical field [0001] The invention relates to the technical field of heavy metal ion adsorption, in particular to a glass fiber-based modified adsorbent and a preparation method thereof. Background technique [0002] With the development of social economy and the planning of urbanization and industrialization, there are a lot of heavy metal pollution in rivers, lakes and soil, which has also attracted people's attention. How to effectively remove heavy metal ions in sewage has become our popular research directions. [0003] heavy metal Cu 2+ One of the most common heavy metal pollution of ions, and as people's research found that the pollution of polycyclic aromatic hydrocarbons (PAHs) is increasing day by day, studies have shown that in Cu 2+ In the coexistence system of ions and polycyclic aromatic hydrocarbons, the heavy metal Cu 2+ Ions will form complex compounds with polycyclic aromatic hydrocarbons through cation-π bonds, and the toxicity of the compound polluta...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F101/20C02F101/32
CPCB01J20/103B01J20/20B01J20/226C02F1/288C02F2101/20C02F2101/327
Inventor 宋家豪
Owner 宋家豪
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