Carbon-loaded nano bismuth composite material, preparation method and application thereof

A composite material and nano-bismuth technology, which is applied in the preparation of organic compounds, preparation of amino hydroxyl compounds, chemical instruments and methods, etc., can solve the problems of limited application range, poor dispersion of nano-bismuth, etc., so as to reduce production costs and simplify Production process, the effect of improving the dispersion performance

Active Publication Date: 2020-06-26
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the dispersion of nano-bismuth in the carbon-supported bismuth material prepared by the above method is not good, thereby limiting its scope of use.

Method used

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  • Carbon-loaded nano bismuth composite material, preparation method and application thereof
  • Carbon-loaded nano bismuth composite material, preparation method and application thereof
  • Carbon-loaded nano bismuth composite material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of carbon-loaded nano-bismuth composite material, comprising the following steps: mixing 10g citric acid, 0.5g bismuth nitrate pentahydrate, 5g tartaric acid and 50g water, after stirring evenly, transferring the mixed solution obtained to a polytetrafluoroethylene Put the hydrothermal kettle in an ethylene-lined hydrothermal kettle, then put the hydrothermal kettle into an oven, control the reaction temperature at 180°C, and the reaction time for 8 hours. After the hydrothermal kettle is naturally cooled, take out the contents of the hydrothermal kettle, wash with water, Dry to obtain the carbon-loaded nano-bismuth material.

[0021] A carbon-loaded nano-bismuth composite material, which is prepared by the above-mentioned preparation method.

[0022] The prepared composites were characterized by transmission electron microscope, X-ray powder diffractometer and X-ray photoelectron spectrometer. figure 1 , figure 2 ,and image 3 They are the tran...

Embodiment 2

[0031] A preparation method of a carbon-loaded nano-bismuth composite material, comprising the steps of: mixing 10 g of citric acid, 0.2 g of bismuth nitrate pentahydrate, 1 g of tartaric acid and 20 g of water, and stirring evenly, transferring the resulting mixed solution to a hydrothermal kettle , and then put the hydrothermal kettle into an oven, control the reaction temperature to 150° C., and the reaction time to 12 hours. After the hydrothermal kettle is naturally cooled, take out the contents of the hydrothermal kettle, wash with water, and dry to obtain a carbon-loaded nanobismuth material.

[0032]A carbon-loaded nano-bismuth composite material, which is prepared by the above-mentioned preparation method.

[0033] The composite material was characterized by transmission electron microscopy, X-ray diffractometer and X-ray photoelectron spectroscopy. The results showed that nanobismuth was uniformly dispersed in the carbon material, and the atomic percentage of carbon i...

Embodiment 3

[0036] A preparation method of carbon-loaded nano-bismuth composite material, comprising the following steps: 10g citric acid, 1.0g bismuth nitrate pentahydrate, 10g tartaric acid and 100g water are mixed, after stirring evenly, the mixed solution obtained is transferred to a polytetrafluoroethylene Put the hydrothermal kettle into an oven, control the reaction temperature to 220°C, and the reaction time for 4 hours. After the hydrothermal kettle is naturally cooled, take out the contents of the hydrothermal kettle, wash with water, Dry to obtain the carbon-loaded nano-bismuth material.

[0037] A carbon-loaded nano-bismuth composite material, which is prepared by the above-mentioned preparation method.

[0038] The composite material was characterized by transmission electron microscope, X-ray diffractometer and X-ray photoelectron spectrometer, etc. The results showed that nano-bismuth was uniformly dispersed in the carbon material, and the atomic percentage of carbon in the...

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Abstract

The invention discloses a carbon-loaded nano bismuth composite material, a preparation method and application thereof. The method comprises the following steps: mixing metered citric acid, bismuth nitrate pentahydrate, tartaric acid and water, uniformly stirring, transferring the obtained mixed solution into a hydrothermal kettle, putting the hydrothermal kettle into a drying oven, controlling thereaction temperature to be 150-220 DEG C and the reaction time to be 4-12 hours, naturally cooling the hydrothermal kettle, taking out the content in the hydrothermal kettle, washing with water, anddrying to obtain the carbon-loaded nano bismuth material, wherein the mass ratio of the citric acid to the bismuth nitrate pentahydrate to the tartaric acid to the water is 1:(0.02-0.1):(0.1-1):(2-10). According to the method, the technological process is simplified, the production cost is reduced, the nano bismuth particles in the prepared composite material are uniformly dispersed, potassium borohydride can be effectively catalyzed to reduce p-nitrophenol, and the composite material has high catalytic activity and good repeatability and has potential utilization value in the aspect of sewagetreatment.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of composite materials, and in particular relates to a preparation method and application of a carbon-loaded nano-bismuth composite material. Background technique [0002] Bismuth is low in toxicity and cheap, and its use in industry is increasing. Bismuth compounds, such as bismuth oxyhalide, bismuth oxide, bismuth sulfide, etc., have excellent photocatalytic properties. Bismuth can also be used to catalyze redox reactions. The specific surface area of ​​a single bismuth catalyst is small, and the utilization rate of bismuth is not high. In order to improve its performance, bismuth is usually loaded on the carrier, such as bismuth-based catalysts loaded with graphite phase carbon nitride, which can significantly improve its photocatalytic performance (Wang Pengyuan, Guo Changsheng, Gao Jianfeng, Xu Jian. Advances in Chemistry, 2017, 29 (2 / 3): 241-251.). Common carbon mate...

Claims

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Application Information

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IPC IPC(8): B01J23/18B01J35/00B01J37/08B01J37/10C07C213/02C07C215/76
CPCB01J37/084B01J37/10B01J23/18C07C213/02B01J35/399B01J35/393C07C215/76
Inventor 何思敏骆燕陈丽婷蔡可迎
Owner XUZHOU UNIV OF TECH
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