Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation of nano-catalyst for repairing organic pollution of groundwater and use method thereof

A nano-catalyst and organic pollution technology, which is applied in the direction of water pollutants, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of large environmental impact and high toxicity of cobalt dissolution, and achieve simple and efficient preparation methods and high adsorption capacity. Strong, effect of improving atom utilization efficiency

Pending Publication Date: 2021-12-17
广州珠矶科技有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the best activation method for catalytic performance is to add cobalt ions, but its toxicity is high, and the dissolution of cobalt has a great impact on the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation of nano-catalyst for repairing organic pollution of groundwater and use method thereof
  • Preparation of nano-catalyst for repairing organic pollution of groundwater and use method thereof
  • Preparation of nano-catalyst for repairing organic pollution of groundwater and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this embodiment, the preparation of a nano-catalyst for the remediation of groundwater organic pollution comprises the following steps:

[0037] (1) g-C 3 N 4 Preparation: Weigh 4g of melamine and 20g of ammonium bromide, add them to 40ml of deionized water to dissolve, stir evenly, place the solution in an oil bath at 90°C and evaporate to dryness, then place the obtained solid in a covered crucible, Raise the temperature to 550°C at a rate of 5°C / min, and continue heating at this temperature for 3.5 hours, then take it out and grind it sufficiently to obtain a powder.

[0038] (2) Take the prepared g-C in step (1) 3 N 4 5g, dissolved in 50mL deionized water, heated and stirred in a water bath at 80°C for 4 minutes to g-C 3 N 4 Dissolve completely, and then add 3-aminopropyltriethoxysilane (APTES) dropwise to obtain a modified amino microsphere carrier, and the resulting product is referred to as C 3 N 4 -APTES.

[0039] (3) Monoatomic cobalt supported on a...

Embodiment 2

[0043] In this embodiment, the preparation of a nano-catalyst for the remediation of groundwater organic pollution comprises the following steps:

[0044] (1) g-C 3 N 4 Preparation: Weigh 4g of melamine and 20g of ammonium bromide, add them to 40ml of deionized water to dissolve, stir evenly, place the solution in an oil bath at 90°C and evaporate to dryness, then place the obtained solid in a covered crucible, Raise the temperature to 550°C at a rate of 5°C / min, and continue heating at this temperature for 3.5 hours, then take it out and grind it sufficiently to obtain a powder.

[0045] (2) Take the prepared g-C in step (1) 3 N 4 5g, dissolved in 50mL deionized water, heated and stirred in a water bath at 80°C for 4 minutes to g-C 3 N 4 Dissolve completely, and then add 3-aminopropyltriethoxysilane (APTES) dropwise to obtain a modified amino microsphere carrier, and the resulting product is referred to as C 3 N 4 -APTES.

[0046] (3) Monoatomic cobalt supported on a...

Embodiment 3

[0051] In this embodiment, the preparation of a nano-catalyst for the remediation of groundwater organic pollution comprises the following steps:

[0052] (1) g-C 3 N 4 Preparation: Weigh 4g of melamine and 20g of ammonium bromide, add them to 40ml of deionized water to dissolve, stir evenly, place the solution in an oil bath at 90°C and evaporate to dryness, then place the obtained solid in a covered crucible, Raise the temperature to 550°C at a rate of 5°C / min, and continue heating at this temperature for 3.5 hours, then take it out and grind it sufficiently to obtain a powder.

[0053] (2) Take the prepared g-C in step (1) 3 N 4 5g, dissolved in 50mL deionized water, heated and stirred in a water bath at 80°C for 4 minutes to g-C 3 N 4 Dissolve completely, and then add 3-aminopropyltriethoxysilane (APTES) dropwise to obtain a modified amino microsphere carrier, and the resulting product is referred to as C 3 N 4 -APTES.

[0054] (4) Monoatomic cobalt supported on a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of groundwater remediation, and discloses a preparation method of a nano-catalyst for repairing organic pollution of groundwater and a use method. The preparation method comprises the following steps: preparing a mixed solution in a bubble liquid membrane reactor by using a modified amino microsphere nano-carrier and a cobalt nitrate hexahydrate solution, freeze-drying, and calcining in an H2 atmosphere to obtain a product, namely Co-C3N4-APTES; then preparing an irregular blocky precursor through a bubble liquid film method; and finally, carrying out a hydrothermal reaction to prepare the modified amino microsphere nano-catalyst loaded with monatomic cobalt in situ. The application method comprises the following steps: mixing the nano-catalyst, persulfate and a water body containing organic pollutants, and carrying out a degradation reaction to complete degradation of the organic pollutants in the water body. The nano material for repairing organic pollution of underground water and the use method of the nano material have the advantages of high reaction activity, good degradation effect, environmental protection and the like, can efficiently remove organic pollutants in a water body, and have a good application prospect.

Description

technical field [0001] The invention belongs to the field of groundwater remediation, and relates to the preparation and application method of a nanometer catalyst used for the remediation of groundwater organic pollution. Background technique [0002] At present, groundwater pollution, as a problem that restricts the sustainable development of human society, is attracting more and more attention from all over the world. Groundwater pollution is the main factor that threatens groundwater resources. In particular, a large number of organic pollutants produced by petrochemical and industrial enterprises enter groundwater through rainwater leaching, soil infiltration, and groundwater level fluctuations. There are problems such as complex forms and difficult handling. The surrounding environment has caused serious harm and seriously threatened people's health. [0003] Due to the advantages of various activation methods, good stability, high yield of reactive substances and wid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J27/24B01J35/10B01J35/02C02F1/72C02F101/30
CPCB01J27/24C02F1/725C02F2101/30B01J35/40B01J35/61
Inventor 朱志华葛建华袁娟丽
Owner 广州珠矶科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com