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Method for preparing nano calcium carbonate quantum dot through microemulsion system

A nano-calcium carbonate and micro-emulsion technology is applied in the field of nano-materials to achieve the effects of stable performance, simple equipment and easy operation

Inactive Publication Date: 2015-04-15
HENAN ANALYSIS TESTING CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the microemulsion method existing in the prior art can only prepare nano-calcium carbonate with a particle size not less than 10nm, the object of the present invention is to provide a method for preparing nano-calcium carbonate quantum dots with a particle size less than 10nm by a microemulsion system method

Method used

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  • Method for preparing nano calcium carbonate quantum dot through microemulsion system

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Experimental program
Comparison scheme
Effect test

Embodiment １

[0027] (1) Preparation of microemulsion non-aqueous component system

[0028] At a temperature of 10°C, the non-water components in the system are mixed and stirred evenly according to the mass ratio of Tuwen-80 emulsifier: n-butanol co-emulsifier: toluene oil phase in the ratio of 2:3:5;

[0029] (2) Preparation of calcium chloride microemulsion

[0030] the Prepare Calcium Chloride Solution

[0031] Dissolve calcium chloride in the water phase and stir evenly to prepare an aqueous solution of calcium chloride with a concentration of 1.5M;

[0032] the Preparation of calcium chloride microemulsion

[0033] Put step (2) -- The prepared calcium chloride aqueous solution is mixed with the microemulsion non-aqueous component system prepared in step (1), and stirred evenly. The mass ratio of each component after mixing is emulsifier: co-emulsifier: toluene oil phase: calcium chloride is 2:3:5:0.4;

[0034] (3) Preparation of sodium carbonate microemulsion

[0035] Pr...

Embodiment ２

[0044] (1) Preparation of microemulsion non-aqueous component system

[0045] At a temperature of 20°C, each non-water component in the system is based on TW-80 emulsifier: n-butanol and n-octanol (n-butanol / n-octanol mass ratio is 8 / 2) co-emulsifier: toluene oil The mass ratio of the phases is 2:3:1.5 and mixed evenly;

[0046] (2) Preparation of calcium chloride microemulsion

[0047] the Prepare Calcium Chloride Solution

[0048] Dissolve calcium chloride in the water phase and stir evenly to prepare an aqueous solution of calcium chloride with a concentration of 1.0M;

[0049] the Preparation of calcium chloride microemulsion

[0050] Put step (2) -- The prepared calcium chloride aqueous solution is mixed with the microemulsion non-aqueous component system prepared in step (1), and stirred evenly. The mass ratio of each component after mixing is emulsifier: co-emulsifier: toluene oil phase: calcium chloride is 2:3:1.5:0.2;

[0051] (3) Preparation of sodium carb...

Embodiment 3

[0061] (1) Preparation of microemulsion non-aqueous component system

[0062] At a temperature of 30°C, each non-aqueous component in the system is based on emulsifier (Span-80 / Towen-60 / OP-10 / AEO-3 mass ratio is 1 / 2 / 2 / 1): assistant emulsification Agent (mass ratio of isohexanol / n-butanol is 1 / 9): the mass ratio of toluene oil phase is 2:2.5:4, mix and stir evenly;

[0063] (2) Preparation of calcium chloride microemulsion

[0064] the Prepare Calcium Chloride Solution

[0065] Dissolve calcium chloride in the water phase and stir evenly to prepare a calcium chloride aqueous solution with a concentration of 2.0M;

[0066] the Preparation of calcium chloride microemulsion

[0067] Put step (2) -- The prepared calcium chloride aqueous solution is mixed with the microemulsion non-aqueous component system prepared in step (1), and stirred evenly. The mass ratio of each component after mixing is emulsifier: co-emulsifier: toluene oil phase: calcium chloride is 2:2.5:4:0.35...

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Abstract

A method for a nano calcium carbonate quantum dot through a microemulsion system belongs to the technical field of nanometer materials. According to the method, a non-aqueous toluene / emulsifier / co-emulsifier microemulsion system is firstly prepared, then a calcium chloride microemulsion and a sodium carbonate microemulsion are respectively prepared in a microemulsion area, then the sodium carbonate microemulsion is slowly added into the calcium chloride microemulsion and reacts to finally obtain a nano calcium carbonate quantum dot microemulsion. The nano calcium carbonate prepared through the method provided by the invention has the characteristics such as small grain size and uniformity. The nano calcium carbonate quantum dot, as a modified intermediate, can be directly used in a special occasion with methylbenzene as a solvent, so as to reduce the dust pollution of the environment. According to the method, the reaction condition is mild, the equipment is simple and easy to operate, and meanwhile, the chosen main materials are rich in source and low in cost, so that the method is easy in promotion and application.

Description

technical field [0001] The invention relates to a preparation method of nanomaterials, in particular to a microemulsion system and a preparation method of nano calcium carbonate quantum dots under the system, belonging to the technical field of nanomaterials. Background technique [0002] Quantum dots refer to nanoparticles with a particle size between 1 and 10nm, which have potential broad application prospects in many fields such as medicine, microelectronic devices, catalytic materials and energy technology. At present, domestic and foreign literature reports have successfully prepared quantum dots of materials such as telluride spacers, zinc oxide, and titanium dioxide, but so far, no reports of calcium carbonate quantum dots have been found. Therefore, it is necessary to conduct in-depth research on the preparation method of calcium carbonate quantum dots. [0003] At present, there are many preparation methods for nano-calcium carbonate materials, but most of them wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F11/18B82Y30/00
Inventor 褚艳红刘珂珂郭辉郜丽红邢会华曹艳霞刘清刘铁良曹健张国宝
Owner HENAN ANALYSIS TESTING CENT
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