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MOFs/water hyacinth derivative material, preparation method thereof and degradation method of organic pollutants

A technology for water hyacinth and organic matter, which is applied in the fields of water pollutants, organic compounds/hydrides/coordination complex catalysts, water/sewage treatment, etc., can solve the problems of water pollution, crystal growth, metal ion leaching, etc. High utilization rate, overcoming the effects of easy agglomeration and excellent stability

Active Publication Date: 2021-06-04
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using this method will cause the leaching of metal ions, causing a certain degree of pollution to the water body
Moreover, when modifying such materials by ion exchange, self-assembly, lytic synthesis, sol method, electrospinning method and etching method, some harmful organic reagents or surfactants, complicated techniques or expensive equipment are usually used, The decomposition process also tends to cause crystal growth problems, which will limit the application of such functional layered nanomaterials on a large scale

Method used

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  • MOFs/water hyacinth derivative material, preparation method thereof and degradation method of organic pollutants
  • MOFs/water hyacinth derivative material, preparation method thereof and degradation method of organic pollutants
  • MOFs/water hyacinth derivative material, preparation method thereof and degradation method of organic pollutants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Weigh 1mmol Co(NO 3 ) 2 ·6H 2 0 and 5mmol 2-methylimidazole are dissolved in 60mL methanol respectively, mix in stirring, obtain MOFs precursor mixed solution;

[0040] (2) Weigh 20 g of 200-mesh water hyacinth biomass, add it to the MOFs precursor mixed solution, stir magnetically for 24 hours, let it stand for 24 hours, then wash the precipitate with methanol, and dry the precipitate collected by centrifugation at 65 °C , to obtain MOFs / water hyacinth precursor;

[0041](3) The dried MOFs / water hyacinth precursor was placed in a rectangular crucible and calcined in a muffle furnace to 350 °C with a heating rate of 2 °C / min and a holding time of 2 hours. The calcined samples were collected, stirred in 0.1 mol / L hydrochloric acid for 6 hours, washed with deionized water until neutral, and dried at 65°C to obtain MOFs / water hyacinth-derived materials.

[0042] The scanning electron microscope figure of the product that the embodiment of the present application 1 ...

Embodiment 2

[0047] Pipette 100ml 20mg L -1 Put the bisphenol A solution in a 250ml Erlenmeyer flask, then add 10mg of the product obtained in Example 1 and Comparative Example 1 respectively, vibrate on a constant temperature shaker at 25°C at a speed of 180r / min, and after shaking for 60min, add 1mL of 200mmol / The LPMS solution starts the degradation reaction, samples are taken at specific time intervals, and the concentration of bisphenol A in the samples is tested after filtering with a disposable filter head. In addition, control groups using only the same amount of PMS solution and only using the same amount of MOFs / water hyacinth derived materials prepared in Example 1 to participate in the degradation were respectively set up. Take time as the abscissa, and the concentration ratio of bisphenol A before and after solution treatment as the ordinate, and draw a graph.

[0048] Figure 6 It is a comparison chart of the degradation performance of bisphenol A in Example 2 of the prese...

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Abstract

The invention belongs to the technical field of composite materials. The invention provides an MOFs / water hyacinth derivative material, a preparation method thereof and a degradation method of organic pollutants. The MOFs / water hyacinth derivative material is composed of water hyacinth biochar and a cobalt-based zeolite imidazate framework embedded in the water hyacinth biochar. The water hyacinth biochar is used as a carrier of the MOFs material, and the prepared MOFs / water hyacinth derivative material has excellent stability, conductivity and specific surface area, and is more beneficial to charge transfer and mass transfer processes between cobalt active sites and pollutants; and due to the pore limiting effect of the water hyacinth biochar, crystal growth of the MOFs derivative metal oxide in the thermal decomposition process can be effectively limited. The MOFs / water hyacinth derivative material disclosed by the invention has strong capability of activating persulfate to generate free sulfate radicals, so that the MOFs / water hyacinth derivative material has efficient and lasting capability of catalytically oxidizing organic matters, and the defects that a catalyst is easy to agglomerate, the activation time of persulfate is long and the like are effectively overcome.

Description

technical field [0001] The application belongs to the technical field of composite materials, and in particular relates to a MOFs / water hyacinth derived material, a preparation method thereof, and a degradation method of organic pollutants. Background technique [0002] Bisphenol A is an important derivative of phenol and acetone, and is also an organic chemical raw material commonly used in the preparation of various polymer materials such as epoxy resin and polycarbonate. Bisphenol A is widely used in daily life. Since the 1960s, it has been used in the manufacture of plastic (milk) bottles, suction cups for children, and coatings on the inside of food and beverage (milk powder) cans. Bisphenol A is everywhere, from mineral water bottles, medical equipment to the inside of food packaging. Studies have shown that bisphenol A can lead to endocrine disorders, threatening the health of fetuses and children, cancer and obesity caused by metabolic disorders are also considered ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J35/10C02F1/72C02F101/38C02F101/36C02F101/34
CPCB01J31/1691B01J31/1815C02F1/725B01J2531/845B01J2531/0216C02F2101/38C02F2101/36C02F2101/34C02F2101/345B01J35/61
Inventor 谢武明黄子峻
Owner GUANGDONG UNIV OF TECH
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