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Preparation method of carbon-doped BiOI/BiOIO3 heterostructure

A technology of bismuth iodide bismuth iodate and heterostructure, which is applied in separation methods, chemical instruments and methods, gas treatment and other directions, can solve problems such as poor technical effects, achieve significant social and economic benefits, reduce emissions, and optimize Effects of preparation process conditions

Inactive Publication Date: 2018-11-13
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0010] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for preparing a carbon-doped bismuth oxyiodide bismuth oxyiodate heterostructure. The preparation method of the structure should solve the technical problem that the technical effect of the catalyst in the prior art for removing mercury from coal-fired flue gas is not good

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  • Preparation method of carbon-doped BiOI/BiOIO3 heterostructure

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Embodiment 1

[0026] A Fabrication Method of Carbon-doped BiOI / BiOIO3 Heterostructure, BiOI and BiOIO 3 The heterostructure is conducive to the separation of photogenerated electron-hole pairs, and it exhibits high photocatalytic activity in mercury removal experiments under visible light conditions;

[0027] The preparation method of this catalyst comprises the following steps:

[0028] (1) 0.485g of Bi(NO 3 ) 3 ·5H 2 O was added to 80ml of deionized water, and continued magnetic stirring for 20min to obtain a mixed liquid;

[0029] (2) 0.214g of KIO 3 Dissolve in the above mixed liquid, and continue magnetic stirring for 2h to obtain the mixed liquid;

[0030] (3) Dissolving 0.0054 g of glucose in the mixed liquid of step (2), and continuing magnetic stirring for 1 h;

[0031] (4) Place the above solution in a hydrothermal reaction kettle, and heat it in water at a temperature of 160° C. for 6 hours to obtain the product;

[0032] (5) The product obtained in step (4) is washed thre...

Embodiment 2

[0038] A carbon-doped BiOI / BiOIO 3 Preparation methods of heterostructures, BiOI and BiOIO 3 The heterostructure is conducive to the separation of photogenerated electron-hole pairs, and it exhibits high photocatalytic activity in mercury removal experiments under visible light conditions;

[0039] The preparation method of this catalyst comprises the following steps:

[0040] (1) Take by weighing the carbon-doped BiOI / BiOIO obtained in 0.02g embodiment 1 3 The heterostructure catalyst was dissolved in 5ml of deionized water, sprayed evenly on the glass plate after ultrasonication, and dried at 80°C for 10 minutes;

[0041](2) Place a 9W LED lamp 10cm above the glass sheet, open the main path of the photocatalytic mercury removal bench, and close the bypass;

[0042] (3) After the mercury concentration is stable in the dark, turn on the 9W LED light, save the data and turn off the LED light after the mercury concentration is stable;

[0043] (4) Weigh 0.02g pure BiOIO 3 R...

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Abstract

The invention provides a preparation method of a carbon-doped BiOI / BiOIO3 heterostructure. The preparation method comprises the following steps of adding Bi(NO3)3.5H2O into deionized water, and continuously stirring; dissolving KIO3 (potassium iodate) into the mixed solution, and continuously stirring magnetically, so as to obtain the other mixed solution; dissolving a carbon source into the other mixed solution, and continuously stirring magnetically until the carbon source is dissolved; putting the solution into a hydrothermal reaction kettle, and hydrothermally treating for 6 to 12h at thetemperature of 140 to 170 DEG C, so as to obtain a product; respectively washing the obtained product by deionized water and anhydrous ethyl alcohol for two to five times, so as to obtain a sample; drying the sample in an oven at the temperature of 70 to 85 DEG C; calcining the dried product in a muffle furnace for 2h at the temperature of 200 to 400 DEG C, and naturally cooling to room temperature after the reaction is completed, so as to obtain the product. A catalyst for the carbon-doped BiOI / BiOIO3 heterstructure has strong adsorption and catalysis properties.

Description

technical field [0001] The invention belongs to the field of inorganic catalytic materials, and relates to a catalyst, specifically a carbon-doped BiOI / BiOIO 3 Methods for the preparation of heterostructures. Background technique [0002] Energy is the foundation of national economic development. Coal, as the most important basic energy in our country, has occupied a very important strategic position in the national economic life for a long time. At present, coal consumption accounts for about 70% of the primary energy. Since my country is a country with coal as the main energy source, this determines the pattern of using coal as the main energy source for power generation. However, with the successive production of thermal power plants, pollutants such as nitrogen oxides, sulfur oxides, dust, and mercury emitted by coal combustion have caused serious harm to our ecological environment. This phenomenon has become a constraint on human sustainable development. One of the ma...

Claims

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Application Information

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IPC IPC(8): B01J27/08B01J35/00B01D53/86B01D53/64
CPCB01D53/8665B01J27/08B01D2257/602B01D2258/0283B01J35/39
Inventor 吴江纪政赵丽丽何平王志楚钱健港关昱凌杨田玉琢张会
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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