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Nitrogen-doped organic carbon nanometer material, preparation method and applications thereof

A nanomaterial and organic carbon technology, applied in the field of carbon materials, can solve the problem that carbon nanomaterials do not play a role in promoting plant growth, and achieve the effect of improving environmental affinity, wide applicability, and promoting germination.

Inactive Publication Date: 2019-01-11
慈立杰 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, researchers have begun to pay attention to the impact of carbon nanomaterials on animals, plants, microorganisms, and the environment. It is generally believed that carbon nanomaterials should be able to promote plant growth and development, but in practical applications, carbon nanomaterials have not played a role in promoting plant growth.

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  • Nitrogen-doped organic carbon nanometer material, preparation method and applications thereof
  • Nitrogen-doped organic carbon nanometer material, preparation method and applications thereof
  • Nitrogen-doped organic carbon nanometer material, preparation method and applications thereof

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preparation example Construction

[0044] The present invention also provides a method for preparing nitrogen-doped organic carbon nanomaterials described in the above technical solution, comprising the following steps:

[0045] (1) Using the graphite plate as an electrode, electrolyze the aqueous solution containing the nitrogen source to obtain the hydrosol;

[0046] (2) Dialyzing the clear liquid in the hydrosol of the step (1) to obtain a retentate with a molecular weight of 500-3500D;

[0047] (3) freeze-drying the retentate in the step (2) to obtain nitrogen-doped organic carbon nanomaterials.

[0048]In the invention, the graphite plate is used as an electrode to electrolyze the aqueous solution containing the nitrogen source to obtain the hydrosol. In the present invention, the purity of the graphite plate is preferably ≥90%, more preferably 92-99.9%. The present invention has no special requirements on the size and source of the graphite plate, and commercially available products well known to those ...

Embodiment 1

[0064] Use graphite plate as electrode, 1wt.% ammonia water as electrolyte, select 3V direct current, and after 10 days of electrolysis, nitrogen-doped organic carbon nanomaterial hydrosol is obtained; after centrifugation at 10000r / min for 10min, take the supernatant and use a 3500D dialysis bag Dialysis, and after dialysis, the solution is freeze-dried to obtain dry nitrogen-doped organic carbon nanometer material powder.

Embodiment 2

[0066] Using graphite plate as electrode, 5wt.% ammonia water as electrolyte, 3V direct current, electrolysis for 8 days to obtain nitrogen-doped organic carbon nanomaterial hydrosol; after filtering to remove insoluble impurities, use 3000D dialysis bag for dialysis, and the solution after dialysis Freeze-drying can obtain dry nitrogen-doped organic carbon nanometer material powder.

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Abstract

The invention belongs to the technical field of carbon materials, and particularly relates to a nitrogen-doped organic carbon nanometer material, a preparation method and applications thereof. According to the present invention, the nitrogen-doped organic carbon nanometer material contains a plurality of active groups or active ions formed by four elements of carbon, hydrogen, oxygen and nitrogenso as to improve the environmental affinity, the bioaffinity and the dispersion in water, such that the nitrogen-doped organic carbon nanometer material has wide applicability to the early growth anddevelopment of plants, and can effectively promote the seed germination of plants; and the results of the embodiments show that the germination rate of corn seeds can reach 93% by adding the nitrogen-doped organic carbon nanometer material after the culture for 2 days.

Description

technical field [0001] The invention belongs to the technical field of carbon materials, and in particular relates to a nitrogen-doped organic carbon nanometer material and its preparation method and application. Background technique [0002] In order to achieve high crop yields, a large number of chemical fertilizers, pesticides, and genetically modified engineering technologies have been applied to agricultural production. Although these technologies can increase crop yields in a short period of time, long-term use will cause many side effects, such as land salinization and water body enrichment. Nutritization, water and land heavy metal pollution, stubborn weeds in the field, etc., will all affect the sustainable development of agricultural production and hinder the progress of modern ecological agriculture. [0003] Carbon nanomaterials are an important branch in the field of nanomaterials. In recent years, researchers have begun to pay attention to the impact of carbon...

Claims

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Application Information

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IPC IPC(8): A01N61/00A01P21/00C25B3/00
CPCA01N61/00C25B3/00
Inventor 慈立杰王秀丽涂江平
Owner 慈立杰
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