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Method for synthesizing copper sulfide triangular nanosheets
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A synthesis method, triangular technology, applied in the field of inorganic materials, can solve problems such as high temperature and high pressure synthesis steps, and achieve the effect of short time consumption, simple operation and strong repeatability
Active Publication Date: 2019-11-12
TONGJI UNIV
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Problems solved by technology
However, the synthesis conditions of the existing sheet-like copper sulfide nanomaterials are relatively strict, for example, high temperature and high pressure or other relatively tedious synthesis steps are required.
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Embodiment 1
[0019] A kind of synthetic method of copper sulfide triangular nanosheet, the steps are as follows:
[0020] Step 1, weigh 2400mg of polyethyleneimine and dissolve it in 25ml of secondary water to prepare a polyethyleneimine solution with a concentration of 0.048g / mL, add the prepared polyethyleneimine solution into a 50ml round bottom flask, and open Stir magnetically, add 100 μL of 0.5 mmol / ml copper chloride solution to obtain solution A;
[0021] Step 2, after stirring for 3 minutes, add 25ml of sodiumhydroxide solution with pH=9 to solution A to obtain solution B;
[0022] Step 3, after stirring for 3 minutes, add 1ml of hydrazine hydrate to the solution B, after the addition, flocs in the system quickly appear and disappear, and the solution C is obtained;
[0023] Step 4: Place solution C in a constant temperature water bath at 60°C, add 400 μL of 0.5 mmol / ml sodium sulfide solution, the color of the system will turn black, continue the reaction for 6 hours, centrifug...
Embodiment 2
[0028] A kind of synthetic method of copper sulfide triangular nanosheet, the steps are as follows:
[0029] Step 1, weigh 1200mg of polyethyleneimine and dissolve it in 25ml of secondary water to prepare a polyethyleneimine solution with a concentration of 0.048g / mL, add the prepared polyethyleneimine solution into a 50ml round bottom flask, and open Stir magnetically, add 100 μL of 0.5 mmol / ml copper chloride solution to obtain solution A;
[0030] Step 2, after stirring for 3 minutes, add 25ml of sodium hydroxide solution with pH=9 to solution A to obtain solution B;
[0031] Step 3, after stirring for 3 minutes, add 1ml of hydrazine hydrate to the solution B, after the addition, flocs in the system quickly appear and disappear, and the solution C is obtained;
[0032] Step 4: Put solution C in a constant temperature water bath at 60°C, add 400 μL of 0.5 mmol / ml sodium sulfide solution, the color of the system turns black, continue the reaction for 6 hours, and centrifuge ...
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Abstract
The invention provides a method for synthesizing coppersulfide triangular nanosheets, belonging to the field of inorganic materials. The method comprises the steps of: reacting copperchloride adopted as a starting raw material with sodiumsulfide at 55-65 DEG C for 4-8 h under weak alkaline condition under the function of a reductant, by using polyethyleneimine as a chelating agent. The method has characteristics of green and mild reaction condition, simple operation, short time and high repeatability. The nanosheets prepared by the method have good in vitro photothermal effects and a uniform size, and have a wide prospect in the field of improving the efficiency of photothermal therapy.
Description
technical field [0001] The invention relates to a method for synthesizing coppersulfide triangular nanosheets, which belongs to the field of inorganic materials. Background technique [0002] In cancer treatment, photothermal therapy has attracted extensive attention because of its ability to precisely treat tumor tissue sites. Copper sulfide is a self-doped P-type semiconductor that has been extensively studied for its unique optical properties. Researchers hope to show better photothermal effect by increasing the specific surface area of copper sulfidenanomaterials. Some researchers have found that the photothermal effect of sheet-like nanomaterials is more significant. However, the synthesis conditions of the existing sheet-like copper sulfidenanomaterials are relatively strict, such as requiring high temperature and high pressure or other cumbersome synthesis steps. Contents of the invention [0003] The present invention is carried out in order to solve the ab...
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