Preparation method of phosphate radical adsorbent based on 3D rGO/zirconium dioxide composite material

A composite material and zirconium dioxide technology, applied in the field of environmental pollutant treatment, can solve problems such as balance imbalance and toxicity, and achieve the effects of low cost, simple preparation and simple operation

Inactive Publication Date: 2020-09-11
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the phosphate content in the water body is too large, it will promote the rapid growth of algae, some algae are poisonous, which will cause the imbalance of organisms in the water

Method used

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  • Preparation method of phosphate radical adsorbent based on 3D rGO/zirconium dioxide composite material
  • Preparation method of phosphate radical adsorbent based on 3D rGO/zirconium dioxide composite material
  • Preparation method of phosphate radical adsorbent based on 3D rGO/zirconium dioxide composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] GO was prepared by a conventional method, and a 3 mg / mL dispersion was prepared with deionized water as needed.

[0019] 50mg of ZrOCl 2 ·8H 2 O and 50mg of glutamic acid were dissolved in 1mL of deionized water and sonicated for 10min. While stirring, add the above mixed solution and 5 mL of 3 mg / mL GO dispersion into 30 mL of ethylene glycol. The above mixed solution was transferred to a polytetrafluoroethylene reactor, and hydrothermally reacted at 180°C for 6 hours. The reacted material was repeatedly washed with deionized water to remove impurities, and finally freeze-dried to obtain the final product 3D rGO / ZrO 2 .

Embodiment 2

[0021] GO was prepared by a conventional method, and a 3 mg / mL dispersion was prepared with deionized water as needed.

[0022] 30mg of ZrOCl 2 ·8H 2 O and 50mg of glutamic acid were dissolved in 1mL of deionized water and sonicated for 10min. While stirring, add the above mixed solution and 5 mL of 3 mg / mL GO dispersion into 30 mL of ethylene glycol. The above mixed solution was transferred to a polytetrafluoroethylene reactor, and hydrothermally reacted at 180°C for 6 hours. The reacted material was repeatedly washed with deionized water to remove impurities, and finally freeze-dried to obtain the final product 3D rGO / ZrO 2 .

Embodiment 3

[0024] GO was prepared by a conventional method, and a 3 mg / mL dispersion was prepared with deionized water as needed.

[0025] 40mg of ZrOCl 2 ·8H 2 O and 50mg of glutamic acid were dissolved in 1mL of deionized water and sonicated for 10min. While stirring, add the above mixed solution and 5 mL of 3 mg / mL GO dispersion into 30 mL of ethylene glycol. The above mixed solution was transferred to a polytetrafluoroethylene reactor, and hydrothermally reacted at 180°C for 6 hours. The reacted material was repeatedly washed with deionized water to remove impurities, and finally freeze-dried to obtain the final product 3D rGO / ZrO 2 .

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Abstract

The invention discloses a preparation method of a phosphate radical adsorbent based on a 3D rGO / zirconium dioxide composite material, which comprises the following steps: preparing GO by a conventional method, and preparing a dispersion liquid as required, uniformly dissolving the ZrOCl2.8H2O and glutamic acid, and mixing the solution with the GO dispersion liquid; then transferring the mixed solution into a polytetrafluoroethylene reaction kettle for hydrothermal reaction, and washing and drying the reacted material to obtain the final product 3D rGO / ZrO2. The preparation method has the advantages that 1, the prepared product is regular in morphology and has a three-dimensional structure; 2, the prepared product has efficient phosphate radical adsorption performance; 3, the material is simple to prepare, low in cost and suitable for large-area popularization and application.

Description

technical field [0001] The invention relates to a preparation method of a phosphate adsorbent based on a 3D rGO / zirconia composite material, belonging to the field of environmental pollutant treatment. Background technique [0002] Phosphorus (P), as an important resource and material, is widely used in agriculture and industry. However, when the phosphate content in the water body is too large, it will promote the rapid growth of algae, and some algae are poisonous, which will cause the imbalance of organisms in the water. When the algae matter begins to decay, the water's ability to dissolve oxygen rapidly decreases, which can lead to massive die-offs of fish and other aquatic life. Phosphorus thus has a huge impact on the lakes, rivers and oceans on which people depend. Effective control of phosphorus content in water, removal of excess phosphorus, and development of new and efficient phosphorus removal materials and technologies are crucial to environmental protection....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/10
CPCB01J20/0211B01J20/20C02F1/281C02F2101/105
Inventor 陈萍华唐小秋蒋华麟戴玉华曹群王黎明唐绪兵
Owner NANCHANG HANGKONG UNIVERSITY
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