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Intelligent dual-function core-shell nanoflower composite material, and preparation method and application thereof

A composite material, dual-function technology, applied in chemical instruments and methods, alkali metal compounds, alkali metal oxides/hydroxides, etc., can solve the problems of inability to meet environmental monitoring requirements, low heavy metal adsorption, etc. Bonding site, large specific surface area, low cost effect

Active Publication Date: 2018-11-23
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that existing materials can only adsorb or detect heavy metals alone, cannot meet the requirements of environmental monitoring and have low adsorption capacity for heavy metals, and provide an intelligent dual-functional core-shell nanoflower composite material and Preparation method and application

Method used

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  • Intelligent dual-function core-shell nanoflower composite material, and preparation method and application thereof
  • Intelligent dual-function core-shell nanoflower composite material, and preparation method and application thereof
  • Intelligent dual-function core-shell nanoflower composite material, and preparation method and application thereof

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specific Embodiment approach 1

[0044] Specific implementation mode 1: This implementation mode is an intelligent dual-functional core-shell nanoflower composite material made of NH 2 -Prepared from MIL-101(Al), polyvinylpyrrolidone, zinc nitrate hexahydrate, 2-methylimidazole and methanol; NH 2 -MIL-101(Al) is the inner core, polyvinylpyrrolidone is the structure-directing agent, zinc nitrate hexahydrate is the metal salt ligand, 2-methylimidazole is the organic ligand, and methanol is the solvent.

specific Embodiment approach 2

[0045] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the NH 2 -The mass ratio of MIL-101(Al), polyvinylpyrrolidone, metal salt ligand and 2-methylimidazole is 1:4:80:100. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0046] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the NH 2 -MIL-101(Al) is a spherical substance with a diameter of 500nm to 700nm. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses an intelligent dual-function core-shell nanoflower composite material, and a preparation method and application thereof, which relate to a nanoflower-like composite material and a preparation method and application thereof, and aim to solve the problem that existing materials can only adsorb or detect heavy metals alone, cannot meet environmental monitoring requirements andhave low heavy metal adsorption amount. The intelligent dual-function core-shell nanoflower composite material is prepared from NH2-MIL-101(Al), polyvinylpyrrolidone, zinc nitrate hexahydrate, 2-methylimidazole and methanol. The method comprises the steps of first, synthesis of NH2-MIL-101(Al), and second, hybrid reaction, so as to obtain the intelligent dual-function ZIF-8@NH2-MIL-101(Al) core-shell nanoflower composite material. The composite material has excellent Cu<2+> adsorption capacity and is used for detecting heavy metal ions in water. The invention can obtain the intelligent dual-function core-shell nanoflower composite material.

Description

technical field [0001] The invention relates to a nano-flower composite material, a preparation method and an application. Background technique [0002] Copper is a transition metal that widely exists in the water environment, but due to its significant toxic effects and a large number of agricultural and industrial emissions in recent years, it has caused varying degrees of harm to the environment and ecosystems. Copper pollution is mostly caused by man-made factors. The discharge of pollution sources directly pollutes the soil and water bodies. Excessive copper discharge into the water will lead to unbalanced water ecology, destroy the self-purification ability of the water body, make the water body smelly, stained and reduce its transparency. Aquatic organisms are poisoned by copper pollution. It can also enrich high-concentration copper and enter the food chain through the process of biomagnification. After excessive consumption of copper-contaminated agricultural and aq...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/226B01J20/28014B01J20/28016C02F1/285C02F2101/20
Inventor 王建龙张亮王靖张道宏任新艺张文涛杨庆锋杨程元张天树
Owner NORTHWEST A & F UNIV
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