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Production and application of nano-hybrid material

A technology of nano-hybrid materials and composite materials, applied in inorganic chemistry, alkali metal compounds, other chemical processes, etc., to achieve the effect of improving bacteriostatic and anti-biological fouling properties, improving stacking phenomenon and lipophilicity, and preventing deposition

Active Publication Date: 2019-09-20
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, the subsequent separation of nanoparticles is another challenge

Method used

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  • Production and application of nano-hybrid material
  • Production and application of nano-hybrid material
  • Production and application of nano-hybrid material

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preparation example Construction

[0050] The preparation of the nano-hybrid material specifically comprises the following steps:

[0051] Step S1: Disperse GO in DMF at a solid-to-liquid ratio of 1:4-6mg / mL. After ultrasonic dispersion is uniform, add 3-O-methyl gallic acid, continue ultrasonication for 10-30min, and then heat to 100°C under nitrogen protection. Stir and react at -120°C for 20-30 hours, filter after the reaction, wash the product with absolute ethanol for 3-5 times, and freeze-dry to obtain rGO;

[0052] Step S2: Disperse iron salt, manganese salt and rGO in 20-50% DMF according to the solid-to-liquid ratio of 1:20-60mg / mL, stir at 70-90°C for 1-2h, and then use 5-10M hydrogen Sodium oxide solution adjusts the pH to 10.0-12.0, reacts for 5-10 minutes, cools to room temperature, and washes with absolute ethanol for 3-5 times to remove unreacted ions, and freeze-dries to obtain the rGO-based composite material;

[0053] Step S3: add the rGO-based composite material and fiber raw materials into ...

Embodiment 1

[0064] The preparation of the nano-hybrid material specifically comprises the following steps:

[0065] Step S1: Disperse GO in DMF at a solid-to-liquid ratio of 1:4 mg / mL, and add 3-O-methyl gallic acid after ultrasonic dispersion, wherein the weight ratio of GO and 3-O-methyl gallic acid is 1 :5, continue to sonicate for 10min, then heat to 100°C under nitrogen protection, stir for 20h, filter after the reaction, and wash the product 3 times with absolute ethanol, freeze-dry to obtain rGO;

[0066] Step S2: Disperse rGO, ferric chloride hexahydrate and manganese sulfate monohydrate with a weight ratio of 1:5.8:1.2 in 20% DMF at a solid-to-liquid ratio of 1:20 mg / mL, stir at 70°C for 1 h, and then Adjust the pH to 10.0 with 8M sodium hydroxide solution, react for 5 minutes, cool to room temperature, wash with absolute ethanol 3 times, remove unreacted ions, and freeze-dry to obtain the rGO-based composite material;

[0067]Step S3: Add rGO-based composite materials and PAN r...

Embodiment 2

[0069] The preparation of the nano-hybrid material specifically comprises the following steps:

[0070] Step S1: Disperse GO in DMF at a solid-to-liquid ratio of 1:6 mg / mL, and add 3-O-methyl gallic acid after ultrasonic dispersion, wherein the weight ratio of GO and 3-O-methyl gallic acid is 1 :20, continue ultrasonication for 10-30min, then heat to 120°C under nitrogen protection, stir and react for 30h, filter after the reaction is over, wash the product 5 times with absolute ethanol, and freeze-dry to obtain rGO;

[0071] Step S2: Disperse rGO, ferric chloride hexahydrate and manganese sulfate monohydrate with a weight ratio of 1:6.0:2.5 in 50% DMF at a solid-to-liquid ratio of 1:60 mg / mL, stir at 90°C for 2h, and then Use 8M sodium hydroxide solution to adjust the pH to 12.0, react for 10 minutes, cool to room temperature, wash with absolute ethanol for 5 times, remove unreacted ions, and freeze-dry to obtain the rGO-based composite material;

[0072] Step S3: Add rGO-ba...

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Abstract

The invention provides production and application of a nano-hybrid material, and belongs to the technical field of water treatment. Production of the nano-hybrid material comprises the following steps of modifying GO with benzoicacid,3,4-dihydroxy-5-methoxy- to obtain rGO; coating a rGO slice layer with a MnFe2O4 composite material through a chemical co-precipitation method to produce a rGO-based composite material; and after the rGO-based composite material and a fiber raw material are mixed, conducting electrostatic spinning to obtain the nano-hybrid material. The nano-hybrid material can be used for sewage treatment. According to the production method of the nano-hybrid material, not only is the GO reduced, but also graphene is modified with gallic acid to make the anti-oxidation activity and the stability of nanoparticles, which are evenly dispersed on the surface of the rGO and coat the rGO slice layer, excellent, and the produced nano-hybrid material can effectively adsorb heavy metal ions in sewage, has high anti-pollution performance, and can avoid organic pollution and biological pollution.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to the preparation and application of nano-hybrid materials. Background technique [0002] In recent years, with the development of industrialization and urbanization, heavy metal ion pollution poses a huge threat to the environment and human health. Therefore, heavy metal ion pollution has aroused widespread concern. Some heavy metal ions, such as lead ions, arsenic ions, chromium ions, mercury ions, etc., exceed the standards allowed by the World Health Organization in natural drinking water. Among these heavy metal ions, lead ion, as a common groundwater pollutant, poses a serious threat to human health due to its ability to imitate the toxicity of other biological metal ions (such as calcium, iron, and zinc). Therefore, finding a method that can effectively remove heavy metal ions from sewage has become an important task for the governance of environmental p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/22B01J20/28C02F1/28C02F101/20C02F101/10
CPCB01J20/20B01J20/28007B01J20/22C02F1/281C02F1/286C02F2305/08C02F2101/20C02F2101/103
Inventor 曾霖
Owner ZHEJIANG OCEAN UNIV
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