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Method for rapidly separating endohedral metallofullerenes

A technology of metallofullerene and fullerene, which is applied in the direction of fullerene and nano-carbon, can solve the problem of inability to quickly and efficiently separate inner metallofullerene, and achieve the effect of simple operation and wide application range

Active Publication Date: 2018-06-29
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method for realizing rapid separation of inner-enclosed metallofullerenes, thus solving the technical problem that the prior art cannot quickly and efficiently separate inner-enclosed metallofullerenes

Method used

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  • Method for rapidly separating endohedral metallofullerenes
  • Method for rapidly separating endohedral metallofullerenes

Examples

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Embodiment 1

[0028] Completely dissolving a fullerene mixture containing metal yttrium fullerene in carbon disulfide to obtain a solution to be separated, mixing tin tetrachloride and the solution to be separated at a volume ratio of 1:500, and vigorously stirring for 24 hours to obtain a precipitate; The precipitate is washed with water, and then naturally dried to obtain the metal-encapsulated yttrium fullerene.

Embodiment 2

[0030] Completely dissolving the fullerene mixture containing scandium metal fullerene in carbon disulfide to obtain a solution to be separated, mixing tin tetrachloride and the solution to be separated at a volume ratio of 1:250, and vigorously stirring for 24 hours to obtain a precipitate; The precipitation is washed with water, and then naturally dried to obtain the scandium metal-encapsulated fullerene.

Embodiment 3

[0032] Completely dissolving a fullerene mixture containing metal lanthanum fullerene in toluene to obtain a solution to be separated, mixing titanium tetrachloride and the solution to be separated at a volume ratio of 1:350, and vigorously stirring for 24 hours to obtain a precipitate; The precipitate is washed with water, and then naturally dried to obtain the metal-encapsulated lanthanum fullerene.

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Abstract

The invention discloses a method for rapidly separating endohedral metallofullerenes and belongs to the field of fullerene separation. The method comprises the following steps: completely dissolving afullerene mixture containing the endohedral metallofullerenes in an organic solvent to obtain a to-be-separated solution; mixing Lewis acid and the to-be-separated solution in a volume ratio being 1:100-1:2000 to obtain a precipitate; washing the precipitate with water to obtain the endohedral metallofullerenes. At least half a month is required for separating the endohedral metallofullerenes from 1 g of the fullerene mixture containing the endohedral metallofullerenes only with the conventional HPLC (high performance liquid chromatography) separation, manual operation is needed all the time,and much time and labor are consumed; while the Lewis acid based separation method is not limited by quantity, a large quantity of the fullerene mixture containing the endohedral metallofullerenes can be subjected to separation within one day, and an endohedral metallofullerene enriched product is obtained.

Description

technical field [0001] The invention belongs to the field of separation of fullerenes, and more specifically relates to a method for realizing rapid separation of metal-enclosed fullerenes. Background technique [0002] The new type of metal-carbon hybrid material containing metallofullerene, as an important branch of the fullerene family, has many potential applications in the fields of optoelectronics and biology due to its unique structure and chemical properties. Inner metal fullerenes are basically synthesized by DC arc method, and the generated soot is extracted, separated and purified to finally obtain pure products. Separation is a very important part of the whole process. At present, the commonly used separation methods are high-performance liquid chromatography (HPLC) separation, which can effectively separate fullerenes of various sizes and their isomers. However, there are many problems in HPLC separation. Firstly, its cost is high, and expensive high-performanc...

Claims

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Application Information

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IPC IPC(8): C01B32/156C01B32/154
Inventor 卢兴潘长旺
Owner HUAZHONG UNIV OF SCI & TECH
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