Biomass charcoal based magnetic bismuth oxide composite photocatalyst preparation method and application

A biomass carbon, bismuth oxide technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve application limitations, non-recyclability, and low light utilization rate and other problems, to achieve the effect of speeding up the transfer, convenient separation and recovery, and improving the separation efficiency

Inactive Publication Date: 2017-11-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its low utilization rate of light and non-recyclability, its application is limited.

Method used

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  • Biomass charcoal based magnetic bismuth oxide composite photocatalyst preparation method and application
  • Biomass charcoal based magnetic bismuth oxide composite photocatalyst preparation method and application
  • Biomass charcoal based magnetic bismuth oxide composite photocatalyst preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In step 1, Bi(NO 3 ) 3 ·5H 2 The amount of O is 0.9702g, the amount of deionized water is 40ml, the amount of anhydrous sodium sulfate is 0.4261g, and the mass of NaOH is 0.72g. The microwave reaction temperature is 80°C, the power is 1000W, and the reaction time is 15min.

[0038] In step 2, the amount of petal powder is 1g, the hydrothermal reaction temperature is 200°C, and the reaction time is 5h.

[0039] In step 3, in step 3, FeCl 2 ·4H 2 O and FeCl 3 ·6H 2 The dosage of O is 0.0707g and 0.01838g, and the dosage of ammonia is 5mL.

[0040] In step 4, the amount of C is 0.1 g, and the stirring reaction time is 20 min.

[0041] In step 1, step 2, step 4, the drying temperature of the sample is 60 ℃

Embodiment 2

[0043] In step 1, Bi(NO 3 ) 3 ·5H 2 The dosage of O is 1.9404g, the dosage of anhydrous sodium sulfate is 0.8522g, and the dosage of NaOH is 1.44g. The microwave reaction temperature is 80°C, the power is 500W, and the reaction time is 30min.

[0044] In step 2, the dosage of withered peach flower petal powder is 5g, the hydrothermal reaction temperature is 180°C, and the reaction time is 10h.

[0045] In step 3, FeCl 2 ·4H 2 O and FeCl 3 ·6H 2 The dosage of O is 0.703g and 0.1838g, and the dosage of ammonia is 10ml.

[0046] In step 4, the amount of biomass charcoal added was 0.5 g, and the stirring reaction time was 40 min.

[0047] In step 1, step 2, step 4, the drying temperature of the sample is 60 ℃

Embodiment 3

[0049] In step 1, Bi(NO 3 ) 3 ·5H 2 The amount of O is 1.4553g, the amount of deionized water is 40ml, the amount of anhydrous sodium sulfate is 0.6392g, and the mass of NaOH is 1.44g.

[0050] In step 1, the microwave reaction temperature is 80° C., the power is 800 W, and the reaction time is 20 min.

[0051] In step 2, the amount of petal powder is 3g, the hydrothermal reaction temperature is 190°C, and the reaction time is 8h.

[0052] In step 3, in step 3, FeCl 2 ·4H 2 O and FeCl 3 ·6H 2 The dosage of O is 0.1406g and 0.03676, respectively, and the dosage of ammonia is 8ml.

[0053] In step 4, the amount of C is 0.3 g, and the reaction time is 30 min.

[0054] In step 1, step 2, step 4, the drying temperature of the sample is 60 ℃

[0055] Evaluation of photocatalytic activity: In the DW-01 photochemical reaction instrument, irradiated with a visible light lamp, 100ml of 20mg L -1 Tetracycline simulated wastewater is added to the reactor and its initial value is measured, then the p...

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Abstract

The invention belongs to the technical field of environmental material preparation and provides a biomass charcoal based magnetic bismuth oxide composite photocatalyst Fe3O4@Bi2O3/C preparation method and application. The technical scheme includes steps: step 1, Bi2O3 preparation; step 2, biomass charcoal preparation; step 3, Fe3O4@Bi2O3 preparation; step 4, Fe3O4@Bi2O3/C preparation. The prepared Fe3O4@Bi2O3/C composite photocatalyst is convenient, quick and efficient in separation and recovery and is high in photocatalytic activity and stability; by adoption of biomass withered peach blossom petals as a carbon source, reasonable utilization of wastes is realized, and resources are saved.

Description

Technical field [0001] The invention belongs to the technical field of environmental material preparation, and specifically relates to a magnetic bismuth oxide composite photocatalyst Fe 3 O 4 @Bi 2 O 3 / C preparation method and use. Background technique [0002] Tetracycline is a class of antibiotics commonly used to inhibit and kill various bacteria on the adjacent bed. Due to the large use of tetracycline antibiotics, it is widespread in the environment, which leads to bacterial resistance. On the other hand, tetracycline residues It will have a greater impact on the environment. It can exist in soil, surface water, groundwater, etc., and cause greater harm to the human body. Therefore, it is particularly important to effectively remove tetracycline. In recent years, many experts and scholars have used many methods to solve the above problems, but these methods are low in efficiency and easily cause secondary pollution. People have discovered a new technology-photocatalysis te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/843C02F1/30C02F101/38
CPCB01J23/8437B01J35/004C02F1/30C02F2101/38C02F2305/10
Inventor 朱志于洋秦莹莹姚鑫黄海霍鹏伟李春香
Owner JIANGSU UNIV
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