A kind of preparation method of magnetic clay nanocomposite material
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A technology for composite nanomaterials and clay, which is applied in the field of preparation of nanocomposite materials, can solve the problems of inability to achieve adsorption efficiency and effective recycling, and achieve the effects of high yield, simple and safe process, and low cost.
Inactive Publication Date: 2016-07-06
HEFEI UNIV OF TECH
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Problems solved by technology
If only clay is used to adsorb some pollutants, high adsorption efficiency and effective recycling cannot be achieved.
Method used
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Embodiment 1
[0025] 1) Weigh 10 g of attapulgite and 1 g of nickel nitrate, mix them and fully ball mill for 4 hours;
[0026] 2), putting the solid mixture obtained after ball milling in step 1) into a tube furnace and calcining for 2 hours under a nitrogen gas atmosphere at 350°C;
[0027] 3), weighing the solid mixture obtained after calcining in step 2) and sucrose by 2g and 10g respectively, and fully ball milling for 4h after mixing;
[0028] 4) Putting the solid mixture obtained by grinding in step 3) into a tube furnace and calcining for 2 hours in a nitrogen gas atmosphere at 550° C. to obtain a magnetic clay nanocomposite material.
Embodiment 2
[0030] The preparation steps are as follows:
[0031] 1) Weigh 20 g of attapulgite and 1 g of nickel nitrate, mix them and fully ball mill for 5 hours;
[0032] 2), putting the solid mixture obtained after ball milling in step 1) into a tube furnace and calcining for 3 hours under an argon gas atmosphere at 400°C;
[0033] 3) Weigh the solid mixture obtained after calcining in step 2) and maltose by 2g and 20g respectively, and fully ball mill for 5 hours after mixing;
[0034] 4) Put the solid mixture obtained by grinding in step 3) into a tube furnace and calcinate for 3 h in an argon gas] atmosphere at 600° C. to obtain a magnetic clay nanocomposite material.
Embodiment 3
[0036] 1) Weigh 15g of sepiolite and 1g of nickel nitrate and mix them and fully ball mill for 4h;
[0037] 2), putting the solid mixture obtained after ball milling in step 1) into a tube furnace and calcining for 4 hours under a nitrogen gas atmosphere at 450°C;
[0038] 3), weighing the solid mixture obtained after calcining in step 2) and glucose by 2 g and 30 g, respectively, and fully ball milling for 6 hours after mixing;
[0039] 4) Putting the solid mixture obtained by grinding in step 3) into a tube furnace and calcining for 4 hours in a nitrogen gas atmosphere at 650° C. to obtain a magnetic clay nanocomposite material.
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Abstract
The invention discloses a preparation method of a novel magnetic clay nanometer composite material. The preparation method is characterized in that carbon sources such as saccharose, clay and nickel nitrate are used as raw materials, nickel nitrate and clay are mixed in a mass ratio of 1: (10-30) at a room temperature and are subjected to ball milling, a solid mixture obtained after high-temperature calcination is mixed with the carbon sources in a mass ratio of 1: (5-20), and ball milling and calcination are carried out again so as to obtain the novel magnetic clay nanometer composite material. According to the magnetic composite material prepared by the method, the low-price clay is used as a raw material and is loaded with a magnetic material and a carbon material. The preparation method has the advantages that the preparation process is simple, and the raw materials are easily available and environmentally friendly and practical production requirements are met. The novel magnetic clay nanometer composite material can be widely applied to the purification of industrial raw materials, the treatment of wastewater and the advanced treatment of nanometer film materials, industrial wastewater and dyestuff. Meanwhile, the composite material also has magnetism and can be rapidly separated and recycled under the effect of an external magnetic film without causing secondary pollution.
Description
technical field [0001] The invention relates to a preparation method of a nanocomposite material. Specifically, it is a preparation method of a magnetic clay nanocomposite material. Background technique [0002] Clay is an important mineral raw material widely distributed in rocks and soils all over the world, and is readily available and cheap. It has good physical adsorption, surface chemical activity and ability to exchange with other cations, so it is widely used in the manufacture of ceramic products, refractory materials, building materials, as ion exchangers and sealing garbage in drinking water processing and other chemical processes landfill etc. If only clay is used to adsorb some pollutants, high adsorption efficiency and effective recycling cannot be achieved. [0003] Therefore, it is very important to prepare an ideal adsorbent with high adsorption efficiency, fast adsorption speed, large adsorption capacity, low price and easy recovery to remove heavy metal...
Claims
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Application Information
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