Construction method of indium oxide photocatalysis composite material

A technology of indium trioxide and composite materials is applied in the field of construction of indium trioxide photocatalytic composite materials, which can solve problems such as energy bandwidth, and achieve the effects of low equipment requirements, high specific surface area and excellent catalytic effect.

Inactive Publication Date: 2019-10-25
YANCHENG TEACHERS UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these photocatalytic materials have their own advantages, but they all have the disadvantages of wide energy band and easy recombination of photogenerated electron-hole pairs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 1.6g of indium nitrate and 1.5g of spherical urea, dissolve in 40ml, and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reaction kettle, and reacted at 120° C. for 12 h. After cooling, wash and centrifuge, and dry at 60°C for 12 hours to obtain the precursor of diindium trioxide. The obtained diindium trioxide precursor was put into a tube furnace, and calcined at 550° C. for 0.5 h with a heating rate of 2° C. / min to obtain diindium trioxide. Weigh 5g of citric acid, dissolve in 40ml of deionized water, and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reaction kettle and reacted at 160° C. for 6 h. After cooling, 10 ml of the obtained solution was taken, and 10 mg of the prepared indium trioxide was added, and stirred for 30 minutes to obtain a photocatalytic composite material of indium trioxide.

Embodiment 2

[0026] Weigh 1.7g of indium nitrate and 1.52g of spherical urea, dissolve in 40ml, and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reaction kettle, and reacted at 130° C. for 13 h. After cooling, wash and centrifuge, and dry at 60°C for 12 hours to obtain the precursor of diindium trioxide. The obtained diindium trioxide precursor was put into a tube furnace, and calcined at 580° C. for 1 hour with a heating rate of 2° C. / min to obtain diindium trioxide. Weigh 5.5g of citric acid and 8g of urea in 40ml of deionized water and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reactor, and reacted at 170° C. for 6 h. After cooling, 10 ml of the obtained solution was taken, and 12 mg of the obtained indium trioxide was added, and stirred for 30 minutes to obtain a photocatalytic composite material of indium trioxide.

Embodiment 3

[0028] Weigh 1.8g of indium nitrate and 1.54g of spherical urea, dissolve in 40ml, and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reactor, and reacted at 140° C. for 14 h. After cooling, wash and centrifuge, and dry at 60°C for 12 hours to obtain the precursor of diindium trioxide. The obtained diindium trioxide precursor was put into a tube furnace, and calcined at 600° C. for 2 hours with a heating rate of 3° C. / min to obtain diindium trioxide. Weigh 6g of citric acid, dissolve 26g of ammonia water in 40ml of deionized water, and stir for 30min. Afterwards, the mixed solution was transferred to a hydrothermal reactor, and reacted at 180° C. for 8 h. After cooling, 10 ml of the obtained solution was taken, and 16 mg of the prepared indium trioxide was added, and stirred for 30 minutes to obtain a photocatalytic composite material of indium trioxide.

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Abstract

The invention discloses a construction method of an indium oxide photocatalysis composite material. The purpose of the construction method is that the indium oxide photocatalysis composite material isprepared by stirring and mixing carbon quantum dots doped with non-metallic elements and an indium oxide composite material under a normal temperature and pressure. The construction method has the advantages that (1) a composite photocatalysis material has a hexagonal tubular microstructure, a high specific surface area and more active sites; (2) the obtained indium oxide nanocomposite material fully combines the excellent photocatalysis ability of nanometer indium oxide and the compound action of the carbon quantum dots to inhibit the photogenerated electron-hole, and the synergistic catalysis effect is excellent; (3) reaction conditions constructed by a target material are simple, equipment requirements are low, and a preparation method is simple; (4) the catalytic effect of the targetmaterial is excellent; and (5) deionized water and ethanol are taken as reaction mediums in a reaction, the environment is friendly, and industrial amplification is easy.

Description

[0001] a technical field [0002] The invention relates to the field of nanomaterials, in particular to a method for constructing diindium trioxide photocatalytic composite materials. [0003] Two background technology [0004] Industrial wastewater containing rhodamine B is harmful to humans and animals, and its wastewater treatment process has become a research hotspot in the field of water treatment (Mustafa S, Yunus E U, Erkan Y et al Determination of rhodamine Bin soft drink, waste water and lipstick samples after solid phase extraction. [J]. Food and Chemical Toxicology, 2011, 49: 1796-1799) Due to their remarkable visible light absorption and high energy conversion efficiency, semiconductor oxide-based photocatalysts have attracted a lot of attention (Xiang X, Xie L, Li Z, et al. Ternary MgO / ZnO / In 2 o 3 heterostructured photocatalysts derived from a layered precursor and visible-light-induced photocatalytic activity [J]. Chemical Engineering Journal, 2013, 221: 222-22...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/08B01J27/04B01J27/18B01J27/24B01J37/08B01J37/10B82Y30/00B82Y40/00
CPCB01J23/08B01J35/004B01J37/10B01J37/082B01J27/24B01J27/18B01J27/04B82Y30/00B82Y40/00
Inventor 毛栋雷泽霄花保侣吴林孙世新方东
Owner YANCHENG TEACHERS UNIV
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