System and method for preparing nanocrystals
A technology of nanocrystals and pressurized equipment, which is applied in the field of nanomaterials, can solve the problems of low purification efficiency and inapplicability to large-scale preparation of nanocrystals, and achieve the effect of improving purification efficiency and high efficiency
Pending Publication Date: 2019-08-23
SUZHOU XINGSHUO NANOTECH CO LTD
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Problems solved by technology
[0003] In the existing common technology, when purifying a smaller-scale nanocrystal solution, the nanocrystal solution is generally taken out into a centrifuge tube, and a polar solvent is added to precipitate the nanocrystal, and the nanocrystal precipitate is obtained after centrifugation with a centrifuge, but This method has low purification efficiency and is not suitable for large-scale preparation of nanocrystals
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[0020] The technical solutions in the embodiments of the present application will be described in detail below in conjunction with the implementation manners of the present application. It should be noted that the described implementations are only some of the implementations of the present application, not all of the implementations.
[0021] Such as figure 1 As mentioned above, the schematic diagram of the overall composition of the system for preparing nanocrystals in the exemplary embodiment of the present application, the system 100 includes two parts, the first part is a synthesis device 10, and the synthesis device 10 is used to synthesize nanocrystal stock solution, and the second part The purification device 11 is connected to the synthesis device 10. After receiving the nanocrystal stock solution from the synthesis device 10, the purification device 11 purifies the nanocrystal stock solution to directly obtain purified nanocrystals.
[0022] The purification device ...
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The application discloses a system and method for preparing nanocrystals. The system comprises a synthesis apparatus and a purification apparatus, wherein the synthesis apparatus is used for synthesizing a nanocrystal stock solution, the purification apparatus is connected with the synthesis apparatus, the purification apparatus comprises a centrifugal portion, a precipitation portion and a cleaning portion, the precipitation portion is connected with the centrifugal portion, and is used for supplying a polar solvent to the centrifugal portion, and the cleaning portion is connected with the centrifugal portion, and is used for supplying a non-polar solvent to the centrifugal portion. The purification apparatus of the system comprises the centrifugal portion, the precipitation portion and the cleaning portion, so that the centrifugation, precipitation and cleaning processes of the nanocrystals are all carried out in the same apparatus, and the transfer and transmission working procedureof the nanocrystals between the centrifugation, precipitation and cleaning processes is avoided. The apparatus has high nanocrystal separation efficiency, the effect of rapidly separating and purifying nanocrystals can be achieved in a short time, the purification efficiency is greatly improved, and thus the apparatus is particularly suitable for the preparation of large-scale nanocrystals.
Description
technical field [0001] The present application relates to the field of nanomaterials, in particular to a system and method for preparing nanocrystals. Background technique [0002] A common problem in the solution of nanocrystals synthesized based on wet chemical method is that the excess raw materials, small molecule ligands, etc. used in the synthesis will remain as impurities. Such impurities will affect the charge distribution and active sites on the surface of the nanocrystals, requiring purification before subsequent use. [0003] In the existing common technology, when purifying a smaller-scale nanocrystal solution, the nanocrystal solution is generally taken out into a centrifuge tube, and a polar solvent is added to precipitate the nanocrystal, and the nanocrystal precipitate is obtained after centrifugation with a centrifuge, but This method has low purification efficiency and is not suitable for large-scale preparation of nanocrystals. Contents of the invention...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B01D9/02B01J19/24
CPCB01D9/0045B01D9/0054B01D9/0059B01J19/24B01D2009/0086
Inventor 王允军李敬群刘志军李慧州
Owner SUZHOU XINGSHUO NANOTECH CO LTD