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Insoluble inorganic salt micro-nano material as well as preparation method and application thereof

A technology of water-soluble inorganic salts and nano-materials, applied in the direction of inorganic chemistry, chemical instruments and methods, gallium/indium/thallium compounds, etc., can solve the problems that nano-scale materials are not easy, and achieve simple preparation methods, easy production, The effect of simple process

Active Publication Date: 2018-09-07
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is not easy to synthesize nanoscale materials at low cost and large-scale

Method used

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  • Insoluble inorganic salt micro-nano material as well as preparation method and application thereof
  • Insoluble inorganic salt micro-nano material as well as preparation method and application thereof
  • Insoluble inorganic salt micro-nano material as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 50 mL of 0.1 mol / L CaCl 2 After mixing the aqueous solution and 150 ml of NaSCN aqueous solution with a concentration of 0.1 mol / L in a beaker, add 100 ml of NaSCN with a concentration of 0.1 mol / L 2 CO 3 The aqueous solution is added dropwise into a beaker and left standing for 2 to 4 hours. The product is separated by filtration, washed three times with deionized water, dried in an oven at 60° C., and set aside.

[0038] Powder X-ray diffraction (XRD) analysis confirmed the product to be calcium carbonate. As shown in the curve b in Fig. 3.

[0039] The SEM image shows that the calcium carbonate is a cubic micron-sized particle with a smooth surface, as shown in the b image in Figure 4.

Embodiment 2

[0041] 50 mL of 0.5 mol / L CaCl 2 The aqueous solution and 150 ml of NaSCN aqueous solution with a concentration of 0.5 mol / L were mixed uniformly in a beaker, and then 100 ml of NaSCN with a concentration of 0.5 mol / L 2 CO 3 The aqueous solution is added dropwise into a beaker and left to stand for 2 to 4 hours. The product is separated by filtration, washed three times with deionized water, dried in an oven at 60°C, and set aside.

[0042] Powder X-ray diffraction (XRD) analysis confirmed the product to be calcium carbonate. As shown in the curve c in Fig. 3.

[0043] SEM images show that calcium carbonate is a quasi-cubic micron-sized particle with a rough surface, which is stacked by sheet-like structures, as shown in image c in Figure 4.

Embodiment 3

[0045] 50 mL of 2 mol / L CaCl 2 After mixing the aqueous solution and 150 ml of NaSCN aqueous solution with a concentration of 2 mol / L in a beaker, add 100 ml of NaSCN with a concentration of 2 mol / L 2 CO 3 The aqueous solution is added dropwise into a beaker and left to stand for 2 to 4 hours. The product is separated by filtration, washed three times with deionized water, dried in an oven at 60°C, and set aside.

[0046]Powder X-ray diffraction (XRD) analysis confirmed the product to be calcium carbonate. As shown in the curve d in Fig. 3.

[0047] SEM images show that there are a large number of quasi-spherical and ellipsoidal micro-particles in calcium carbonate, which are stacked by sheet-like nanoscale structures, as shown in the d image in Figure 4.

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Abstract

The invention belongs to the technical field of novel chemical materials and in particular relates to an insoluble inorganic salt micro-nano material as well as a preparation method and application thereof. The insoluble inorganic salt micro-nano material is synthesized by taking a metal ion- thiocyanide system as a precursor and taking the precursor to react with a water-soluble inorganic salt solution at room temperature, wherein when water-soluble inorganic salt is sodium carbonate and metal ions are calcium ions, the prepared inorganic salt micro-nano material is a calcium carbonate micro-nano material with a special shape; when the metal ions are indium ions, the prepared insoluble inorganic salt micro-nano material is an indium salt nano material. The calcium carbonate micro-nano material with the special shape can be used as a chemical material and a filling agent and is used for fields including rubber, plastic, coating, cosmetics and the like; the insoluble indium salt nano material can be used as a functional addition material and a doping material and is used for fields including functional materials, photoelectric functional devices and the like.

Description

technical field [0001] The invention belongs to the technical field of new chemical materials, and in particular relates to a micro-nano-scale insoluble inorganic salt material with a special form and a preparation method and application thereof. Background technique [0002] Simple inorganic salts can have a wide range of applications. Many carbonates are insoluble in water, or have very low solubility in water, and such insoluble inorganic salts can maintain their structural form well. Calcium Carbonate (CaCO 3 ) is a typical example. Calcium carbonate widely exists in nature and is also an industrial raw material with excellent performance and low price. Calcium carbonate is often used as a filler and is widely used in the fields of rubber, plastics, paints, cosmetics and other composite materials. The application performance of calcium carbonate is not only related to the scale, but also related to the surface morphology and structure of the particles. For example, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/18C01G15/00
CPCC01F11/18C01G15/00C01P2002/72C01P2004/03C01P2004/61
Inventor 徐伟孙倩田果
Owner FUDAN UNIV
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