Method for simultaneously synthesizing hydrophilic and hydrophobic carbon points and application of method to detection of Au<3+> and preparation of white light-emitting diodes

Abstract

The invention discloses a method for simultaneously synthesizing hydrophilic and hydrophobic carbon points and an application of the method to detection of Au<3+> and preparation of white light-emitting diodes, and belongs to the field of fluorescent carbon nano-materials. The method includes the steps: taking sulfuric acid as a raw material, dissolving the sulfuric acid by ethyl alcohol, and stirring mixture to form uniform mixed solution; transferring the mixed solution into a polytetrafluoroethylene high-pressure reactor, and heating the mixed solution at the temperature of 200 DEG C; cooling the mixed solution to reach the indoor temperature to obtain black lower-layer solution serving as a hydrophilic carbon point and red upper-layer solution servicing as a hydrophobic carbon point. According to the simple method for simultaneously synthesizing the hydrophilic and hydrophobic carbon points, 8mg of methylene blue is added into the raw material, the prepared hydrophilic carbon pointcan be used for manufacturing the white light-emitting diodes under irradiation of 365nm ultraviolet rays, the prepared hydrophilic carbon point can sensitively and selectively detect gold ions whenserving as a fluorescent probe, and the gold ions in cells can be visually detected and analyzed.

Description

technical field [0001] The invention belongs to the field of fluorescent carbon nanomaterials, in particular to a method for simultaneously synthesizing hydrophilic and hydrophobic carbon points and its ability to detect Au 3+ And the application in the preparation of white light-emitting diodes. Background technique [0002] Fluorescent carbon dots have shown great application potential in sensing, bioimaging, photocatalysis, photovoltaic devices, solar cells and other fields due to their excellent optical properties, good photostability, and low cytotoxicity. [0003] Most of the currently synthesized carbon dots exhibit hydrophilic properties, and in recent studies, hydrophobic carbon dots have also received extensive attention due to their applications in electronic devices and drug delivery. Simultaneous synthesis of hydrophilic and hydrophobic carbon dots with low cost and simple steps. Therefore, it is of great significance to select low-cost precursors and reasonab...

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Problems solved by technology

[0006] In order to solve the problem that in the prior art, the simultaneous synthesis of hydrophilic and hydrophobic carbon dots and carbon dots with low cost and simple steps cannot be realized when detecting gold ions in tissues and cells, and the white light-emitting diode The quantum dots used usually have certain toxicity, which will cause harm to the environment and human beings.

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