Preparation method of sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation

A technology of high-silica glass fiber and photocatalyst, which is applied in the field of preparation of high-silica glass fiber to achieve broad development prospects, increase filtration efficiency, and prevent agglomeration

Active Publication Date: 2015-11-04
BEIJING XINYUAN ENVIRONMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, specific functional groups such as sulfhydryl (-SH), amino (-NH 2 ) or nitrogen-3-trimethoxysilylpropyl ethylenediaminetriacetic acid (-TMS-EDTA) etc. grafting, while supporting photocatalytic materials, such as titanium dioxide (TiO 2 ), zinc oxide (ZnO), ferric oxide (Fe 2 o 3 ), iron oxyhydroxide (FeOx (OH) 3 -2x) is equal to high silica glass fiber, and the application of this multi-scale reinforced soil pollution remediation composite material to the in-situ self-sustaining remediation device of polluted soil based on plant bionics has not been reported yet.

Method used

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  • Preparation method of sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation
  • Preparation method of sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation
  • Preparation method of sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation

Examples

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Effect test

Embodiment 1

[0034] This example provides a preparation method of mercapto-grafted and photocatalyst-loaded high-silica glass fibers for soil pollution remediation, including the preparation method of mercapto-grafted high-silica glass fibers and photocatalyst-loaded mercapto-grafted high The preparation method of silica glass fiber, wherein:

[0035] The preparation method of the mercapto-grafted high-silica glass fiber comprises the following steps: S1: Weigh 100ml of ethanol reagent and dissolve it in 500ml of deionized water; S2: add high-silica glass with a weight of 50g and a length of 30cm to the above solvent Ultrasound for fiber filaments at 1kHz for 10min; S3: Weigh 10g of mercaptopropyltrimethoxysilane and dissolve it in 5ml of toluene for later use; S4: Add mercaptopropyltrimethoxysilane to the glass fiber filaments immersed in the organic solution , and placed on a constant temperature shaker at a temperature of 50°C for 2 hours; S5: take it out after the reaction is completed...

Embodiment 2

[0038] This example provides a preparation method of mercapto-grafted and photocatalyst-loaded high-silica glass fibers for soil pollution remediation, including the preparation method of mercapto-grafted high-silica glass fibers and photocatalyst-loaded mercapto-grafted high The preparation method of silica glass fiber, wherein:

[0039] The preparation method of the mercapto-grafted high-silica glass fiber comprises the following steps: S1: Weigh 150ml of ethanol reagent and dissolve it in 800ml of deionized water; S2: add high-silica glass with a weight of 80g and a length of 45cm to the above solvent Ultrasound for fiber filaments at 60kHz for 15min; S3: Weigh 15g of mercaptopropyltrimethoxysilane and dissolve it in 8ml of toluene for later use; S4: Add mercaptopropyltrimethoxysilane to the glass fiber filaments immersed in the organic solution , and placed on a constant temperature shaker at a temperature of 65°C for 7 hours; S5: take it out after the reaction is complete...

Embodiment 3

[0042] This example provides a preparation method of mercapto-grafted and photocatalyst-loaded high-silica glass fibers for soil pollution remediation, including the preparation method of mercapto-grafted high-silica glass fibers and photocatalyst-loaded mercapto-grafted high The preparation method of silica glass fiber, wherein:

[0043] The preparation method of the mercapto-grafted high-silica glass fiber comprises the following steps: S1: Weigh 200ml of ethanol reagent and dissolve it in 1000ml of deionized water; S2: add high-silica glass with a weight of 100g and a length of 60cm to the above solvent Fiber filaments, ultrasonically ultrasonicated at 120kHz for 20min; S3: Weigh 20g of mercaptopropyltrimethoxysilane and dissolve it in 10ml of toluene for later use; S4: Add mercaptopropyltrimethoxysilane to the glass fiber filaments immersed in the organic solution , and placed on a constant temperature shaker at a temperature of 80°C for 12 hours; S5: Take it out after the...

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Abstract

The invention relates to a preparation method of a sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation. The preparation method comprises the steps: firstly, purifying mercaptopropyl trimethoxy silane, then evenly dispersing in an organic solvent, and carrying out a reaction with a high silica glass fiber, to obtain a high silica glass fiber with the surface grafted with sulfydryl for improving the adsorption property on heavy metal ions; and then immersing the multiscale enhancement high silica glass fiber and photocatalyst particles into an Na3PO4 solution, treating, then filtering, washing and drying, and generating a multiscale enhancement body sulfydryl-grafted and photocatalyst-loaded high silica glass fiber composite material. The preparation method has the beneficial effect that the invention provides the preparation method of the sulfydryl-grafted and photocatalyst-loaded high silica glass fiber for soil pollution remediation, wherein the method has the advantages of simple process, low cost, wide applicable scope and no secondary pollution.

Description

technical field [0001] The invention relates to a method for preparing high-silica glass fibers grafted with mercapto groups and loaded with photocatalysts for soil pollution restoration. Background technique [0002] In recent years, with the rapid development of my country's industrial and agricultural production and township enterprises and rural urbanization, the problem of soil environmental pollution has become more and more serious, especially the situation of farmland soil pollution has become increasingly severe. According to data, there are as many as 20 million hectares of cultivated land polluted by heavy metals, and more than 60 million hectares of farmland polluted by various organic pollutants or chemicals. Soil environmental quality is directly related to the safety of agricultural products. [0003] An in-situ self-sustaining restoration device for polluted soil based on plant bionics simulates plant capillary phenomena and transpiration, and provides an in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/40
Inventor 韩君徐愿坚周建强赵明阳杨立鹏王献德李亚静张如意温琦邢阳周敏高涛
Owner BEIJING XINYUAN ENVIRONMENT CO LTD
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