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A preparation of carboxylated cuins with chemiluminescent properties 2 A general approach to nanomaterials by @zns

A chemiluminescence and nanomaterial technology, which is applied in the field of preparing carboxylated CuInS2@ZnS nanomaterials with chemiluminescence properties, can solve the problems of increased operation difficulty, unfavorable environmental protection, destruction of CuInS generation, etc., and achieves reduced operation difficulty and improved environmental protection. , the effect of good solubility

Active Publication Date: 2022-04-15
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This material also has photoluminescence and chemiluminescence properties. However, this method uses DL-lipoic acid as a ligand, which is insoluble in water and requires the use of sodium hydroxide solution to dissolve, which is not conducive to environmental protection.
On the other hand, although the use of sodium hydroxide increases, although it can improve the solubility of DL-lipoic acid, it will destroy CuInS 2 Therefore, the above method needs to strictly control the amount of sodium hydroxide used, so as to ensure the performance of the solvent without affecting the CuInS 2 Synthetic reaction, resulting in greatly increased operational difficulty

Method used

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  • A preparation of carboxylated cuins with chemiluminescent properties <sub>2</sub> A general approach to nanomaterials by @zns
  • A preparation of carboxylated cuins with chemiluminescent properties <sub>2</sub> A general approach to nanomaterials by @zns
  • A preparation of carboxylated cuins with chemiluminescent properties <sub>2</sub> A general approach to nanomaterials by @zns

Examples

Experimental program
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Embodiment 1

[0056] A preparation of carboxylated CuInS with chemiluminescent properties 2 The general method of @ZnS nanomaterials, the steps are as follows:

[0057] (1) Calculate and weigh 0.32mmol thiomalic acid and dissolve it in 20mL water;

[0058] (2) Adding 400 μL concentration in step (1) is 0.4mol / L sodium citrate solution, 1mL concentration is the cupric chloride solution of 0.01mol / L, 40 μL concentration is the indium trichloride solution of 1mol / L;

[0059] (3) Add 62 μL of sodium sulfide solution with a concentration of 1 mol / L to step (2), and heat to reflux at 95° C. for 45 minutes;

[0060] (4) Add 2 mL of zinc sulfide solution to step (3), and continue to reflux at 95° C. for 40 min;

[0061] (5) Centrifuge and purify the solution obtained in step (4) three times with isopropanol, blow dry with nitrogen, and redissolve in the same volume of water to obtain CuInS 2 @ZnS nanomaterials.

[0062] (6) CuInS purified in step (5) 2 The @ZnS nanomaterial solution was mixed ...

Embodiment 2

[0071] Step is the same as Example 1, except that thiomalic acid is changed into thiosalicylic acid in step (1).

[0072] The CuInS that embodiment 2 makes 2 The photoluminescence peak of @ZnS nanomaterials is at 677 nm, and the chemiluminescence peak is at 800 nm.

Embodiment 3

[0074] The steps are the same as in Example 1, except that thiomalic acid is changed to glutathione in step (1).

[0075] The CuInS that embodiment 3 makes 2 The photoluminescence peak of @ZnS nanomaterials is at 655 nm, and the chemiluminescence peak is at 760 nm.

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Abstract

The invention belongs to the field of nanotechnology preparation and relates to a method for preparing carboxylated CuInS with chemiluminescent properties 2 A general-purpose approach to @ZnS nanomaterials. Water-soluble CuInS was prepared by using sodium citrate and water-soluble ligands with both mercapto and carboxyl groups as dual stabilizers, and copper chloride, indium chloride, sodium sulfide, and zinc sulfide as raw materials. 2 @ZnS nanomaterials. The invention is a one-pot method of synthesis, and generally the ligands meeting the requirements of the group have a high success rate of synthesis, the required raw materials are cheap and easy to obtain, the synthesis device is simple, the conditions are mild, and the operation is safe. CuInS obtained 2 @ZnS nanomaterials have good monodispersity and stability in aqueous phase, and can produce different degrees of chemiluminescence.

Description

technical field [0001] The invention belongs to the field of nanotechnology and relates to a method for preparing carboxylated CuInS with chemiluminescent properties 2 A general-purpose approach to @ZnS nanomaterials. Background technique [0002] Chemiluminescence has been widely used in many fields such as medicine, immunoassay, biotechnology, biosensing, food technology and clinical analysis due to its advantages of simplicity, speed, sensitivity, reproducibility and selectivity (Chem.Rev.2020 , 49, 6800-6815). Compared with the traditional chemiluminescent system luminol / H 2 o 2 In contrast, nanomaterials have unique size dependence and optical properties, and thus have been extensively studied and explored (Chem. Rev. 2017, 117, 901-986). [0003] However, the radiation band of most chemiluminescent systems at present is in the visible region. For example, the traditional chemiluminescent system luminol / H 2 o 2 The maximum radiation wavelength is located around 6...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/62C09K11/02B82Y30/00
CPCC09K11/02C09K11/623B82Y30/00
Inventor 邹桂征董双田
Owner SHANDONG UNIV