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A kind of preparation method of bismuth oxycarbonate-graphene oxide nanocomposite

A nanocomposite, bismuth oxycarbonate technology, applied in the direction of bismuth compounds, carbon compounds, chemical instruments and methods, etc., to achieve the effects of easy industrial production, simple preparation process, and simple process

Active Publication Date: 2020-02-21
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the preparation of bismuth oxycarbonate and its graphene-based nanocomposites by the solid-phase method can overcome some shortcomings of the liquid-phase method, there are few literatures on the preparation of bismuth oxycarbonate, especially its graphene-based nanocomposites, by the solid-phase method. , needs to be further searched for and developed a new preparation method of one-pot room temperature solid-phase chemical reaction with simple steps and green environmental protection, so as to highlight the convenience of operation, simplify steps, increase yield, reduce pollution, and avoid or reduce hard agglomeration of product particles

Method used

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  • A kind of preparation method of bismuth oxycarbonate-graphene oxide nanocomposite
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  • A kind of preparation method of bismuth oxycarbonate-graphene oxide nanocomposite

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Experimental program
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Effect test

Embodiment 1

[0024] Weigh 0.01 mole of sodium bismuthate dihydrate, 0.01 mole of oxalic acid dihydrate and 0.1 g of graphene oxide nanosheets at a molar ratio of 1:1, and add them to a machine equipped with 50 zirconia grinding balls with a diameter of 6 mm and 8 zirconia grinding balls with a diameter of 10 mm. In a 50mL zirconia ball mill jar, mill continuously in a QM-3SP04 planetary high-energy ball mill at 480rpm for 2 hours, wash the product with distilled water, centrifuge and vacuum dry at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

[0025] Carry out XRD analysis to product (see attached figure 1 ), in the XRD pattern only Bi 2 o 2 CO 3 Characteristic diffraction peaks and weak graphene oxide diffraction peaks, no diffraction peaks of other phases exist, indicating that the solid phase reaction between sodium bismuthate and oxalic acid dihydrate is complete after ball milling for 2.0 hours. Calculated according to the Scherrer formula, Bi in the product 2...

Embodiment 2

[0027]Weigh 0.01 mole of sodium bismuthate dihydrate, 0.01 mole of oxalic acid dihydrate and 0.1 g of graphene oxide nanosheets at a molar ratio of 1:1, and add them to a machine equipped with 50 zirconia grinding balls with a diameter of 6 mm and 8 zirconia grinding balls with a diameter of 10 mm. In a 50mL zirconia ball mill jar, mill continuously in a QM-3SP04 planetary high-energy ball mill at 480rpm for 10 hours, wash the product with distilled water, centrifuge and vacuum dry at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

[0028] Carry out XRD analysis to product, calculate according to Scherrer formula, Bi in product 2 o 2 CO 3 The average grain size is 17.6nm.

Embodiment 3

[0030] Weigh 0.01 mole of sodium bismuthate dihydrate, 0.01 mole of oxalic acid dihydrate and 0.1 g of graphene oxide nanosheets at a molar ratio of 1:1, and add them to a machine equipped with 50 zirconia grinding balls with a diameter of 6 mm and 8 zirconia grinding balls with a diameter of 10 mm. In a 50mL zirconia ball mill jar, continuously ball mill in a QM-3SP04 planetary high-energy ball mill at 480rpm for 4 hours, wash the product with distilled water, centrifuge and vacuum dry at 60°C and 0.1Mpa vacuum for 2 hours to obtain the target product.

[0031] Carry out XRD analysis to product, calculate according to Scherrer formula, Bi in product 2 o 2 CO 3 The average grain size is 16.1nm.

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Abstract

The invention discloses a preparation method of a bismuthyl carbonate-graphene oxide nanocomposite. According to the preparation method, after solid-phase raw materials of sodium bismuthate dihydrate,oxalate dihydrate and graphene oxide nanosheets are mixed, a ball-milling solid-phase reaction is performed; an obtained product is subjected to washing, centrifugal separation and drying to obtain atarget product Bi2O2CO3-GO nanocomposite. According to the invention, solid mixing is adopted; the raw material is subjected to the room-temperature ball-milling solid-phase reaction; the preparationprocess is simple; the preparation method is easy to control and aggregation of product particles can be greatly reduced; addition of an oxidation-reductant, a template agent and a solvent is avoided, so that purity of the product is improved, and the preparation method accords with the requirement for material green synthesis and is also suitable for large-scale production.

Description

technical field [0001] The invention belongs to the field of nanomaterials and preparation thereof, in particular to a Bi 2 o 2 CO 3 - Preparation method of GO nanocomposite. Background technique [0002] The sustainable development of human society and economy is increasingly facing two major problems: energy shortage and environmental degradation. Solving the problems of energy shortage and environmental pollution is an urgent need to achieve sustainable development, improve people's quality of life and ensure national security. [0003] Since the late 1970s, people have proposed the use of photocatalysts to degrade toxic and harmful organic substances in water and the atmosphere. The principle of photocatalytic reaction is that after the photocatalyst absorbs photons with energy higher than its band gap, holes and electrons are generated, and these holes and electrons undergo oxidation and reduction reactions respectively to degrade toxic and harmful chemicals and kill...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G29/00C01B32/198B82Y30/00
CPCB82Y30/00C01G29/00C01P2002/72C01P2004/04C01P2004/80
Inventor 张茂林葛金龙刘伟王传虎高燕
Owner BENGBU COLLEGE