Carbon nanosheet composite material as well as preparation method and application thereof

A technology of composite materials and carbon nanosheets, applied in chemical instruments and methods, other chemical processes, alkali metal compounds, etc., can solve the problems of limiting the catalytic ability of persulfate, reducing the exposure of active sites, etc., and achieve recyclability Good, the effect of improving charge transfer efficiency and high electron transfer efficiency

Active Publication Date: 2021-07-02
HUNAN JINLV ENVIRONMENTAL PROTECTION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its catalytic ability to persulfate is limited due to the tendency of its nanoparticles to aggregate, which reduces the exposure of active sites.

Method used

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  • Carbon nanosheet composite material as well as preparation method and application thereof
  • Carbon nanosheet composite material as well as preparation method and application thereof
  • Carbon nanosheet composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In this example, a carbon nanosheet composite material is prepared. The composite material is composed of copper ferrite nanoparticles and nitrogen-doped carbon nanosheets. The composite material has a spherical-sheet three-dimensional structure. The mass ratio is 30%.

[0062] The preparation method specifically includes the following steps:

[0063] (1) 10 g of urea was weighed and put into a covered crucible with a diameter of 50 mm, and calcined at 500° C. for 4 h to obtain flake graphite phase carbon nitride. Subsequently, 2 g of graphitic carbon nitride and 0.5 g of glucose were weighed into 60 ml of deionized water, and subjected to ultrasonic treatment for 4 h. The obtained mixed suspension was placed in a 100 ml reactor for 12 h at 180 °C and cooled to room temperature. Filtration and drying, the obtained solid was calcined at 900 °C for 1 h under nitrogen atmosphere to obtain nitrogen-doped carbon nanosheets NC;

[0064] (2) 1mmol copper nitrate hexahydrate ...

Embodiment 2

[0067] In this example, a carbon nanosheet composite material is prepared. The composite material is composed of copper ferrite nanoparticles and nitrogen-doped carbon nanosheets. The composite material has a spherical-sheet three-dimensional structure. The mass ratio is 40%.

[0068] The preparation method specifically includes the following steps:

[0069] (1) 10 g of urea was weighed and put into a covered crucible with a diameter of 50 mm, and calcined at 500° C. for 4 h to obtain flake graphite phase carbon nitride. Subsequently, 2 g of graphitic carbon nitride and 0.5 g of glucose were weighed into 60 ml of deionized water, and subjected to ultrasonic treatment for 4 h. The obtained mixed suspension was placed in a 100 ml reactor for 12 h at 180 °C and cooled to room temperature. Filtration and drying, the obtained solid was calcined at 900 °C for 1 h under nitrogen atmosphere to obtain nitrogen-doped carbon nanosheets NC;

[0070] (2) 1mmol copper nitrate hexahydrate ...

Embodiment 3

[0075] In this example, a carbon nanosheet composite material is prepared. The composite material is composed of copper ferrite nanoparticles and nitrogen-doped carbon nanosheets. The composite material has a spherical-sheet three-dimensional structure. The mass ratio is 50%.

[0076] The preparation method specifically includes the following steps:

[0077] (1) 10 g of urea was weighed and put into a covered crucible with a diameter of 50 mm, and calcined at 500° C. for 4 h to obtain flake graphite phase carbon nitride. Subsequently, 2 g of graphitic carbon nitride and 0.5 g of glucose were weighed into 60 ml of deionized water, and subjected to ultrasonic treatment for 4 hours. Filtration and drying, the obtained solid was calcined at 900 °C for 1 h under nitrogen atmosphere to obtain nitrogen-doped carbon nanosheets NC;

[0078] (2) 1mmol hexahydrate copper nitrate and 2mmol nonahydrate ferric nitrate are added in 35mL ethylene glycol, stirring 30min under rotating speed ...

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Abstract

The invention provides a carbon nanosheet composite material as well as a preparation method and application thereof. The carbon nanosheet composite material disclosed by the invention is applied to the field of degradation of antibiotic wastewater by an advanced oxidation technology, the degradation efficiency is high, for example, the degradation efficiency of activating persulfate to levofloxacin within 90 minutes reaches 84.87%, the operation is simple, the period is short, the carbon nanosheet composite material is easy to recycle, the condition is mild, the reaction can be performed at normal temperature, special equipment is not needed, the anti-interference capability is strong, and the carbon nanosheet composite material has a wide application prospect in antibiotic wastewater treatment.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a carbon nano-sheet composite material and a preparation method and application thereof. Background technique [0002] Water pollution is a serious threat to human health and sustainable development of society, and it has attracted more and more people's attention. In recent years, after investigation, it was found that the abuse of antibiotics is one of the important factors causing water pollution. Taking Levofloxacin (LVFX for short) as an example, LVFX is a typical quinolone antibiotic with broad-spectrum antibacterial effect and is widely used in the medical field. However, due to its poor biodegradability and good stability, it is easy to remain in water for a long time, posing a threat to the survival of humans and aquatic organisms. [0003] In the related art, commonly used antibiotic treatment technologies, such as photocatalysis, adsorption, memb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30B01J27/24B01J35/02C02F1/28C02F1/72C02F101/30
CPCB01J20/0237B01J20/205B01J20/28009B01J20/28014B01J27/24B01J35/0033B01J35/02C02F1/288C02F1/725C02F2305/023C02F2101/30
Inventor 阳绯文牛承岗董征涛黄放魏勇红
Owner HUNAN JINLV ENVIRONMENTAL PROTECTION CO LTD
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