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A kind of electrochemical preparation method of nano-flaky bismuth fluoride thin film and its application

A nano-flaky, bismuth fluoride technology, which is applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve problems such as high energy consumption and complicated film immobilization technology, and achieve uniform dispersion, The effect of short cycle and process environmental protection

Active Publication Date: 2019-09-27
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of complex or high energy consumption in the existing film immobilization technology, the present invention provides an electrochemical preparation method and application of nano-flaky bismuth fluoride film

Method used

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  • A kind of electrochemical preparation method of nano-flaky bismuth fluoride thin film and its application
  • A kind of electrochemical preparation method of nano-flaky bismuth fluoride thin film and its application
  • A kind of electrochemical preparation method of nano-flaky bismuth fluoride thin film and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the first step, configure 300 mL of mixed solution A with a volume ratio of 20:1 ethylene glycol and distilled water, and weigh 4.57 g of analytically pure NH 4 F is placed in solution A, fully stirred to make it completely dissolved, as solution B;

[0026] In the second step, use 400-mesh abrasive paper to smooth the 4 cm × 1.5 cm × 0.5 cm eraser, rinse the polished eraser with absolute ethanol and distilled water, and set aside;

[0027] In the third step, the Bi plate in the second step is used as the anode, the graphite is used as the cathode, the distance between the cathode and the anode electrodes is 5 cm, and solution B is used as the electrolyte. After deposition at 60 V for 0.5 h, the Bi plate is taken out and dried naturally to obtain Nanosheet BiF 3 Thin film, denoted as BiF 3 -1.

[0028] It was shown by scanning electron microscope that the BiF prepared in this example 3 The film has a sheet-like morphology.

Embodiment 2

[0030] In the first step, prepare 200 mL of mixed solution A with a volume ratio of 15:1 ethylene glycol and distilled water, and weigh 1.1 g of analytically pure NH 4 F is placed in solution A, fully stirred to make it completely dissolved, as solution B;

[0031] In the second step, use 400-mesh abrasive paper to smooth the 4 cm × 1.5 cm × 0.5 cm eraser, rinse the polished eraser with absolute ethanol and distilled water, and set aside;

[0032] 3) The Bi plate in the second step was used as the anode, the graphite was used as the cathode, the distance between the cathode and the anode was 2 cm, and solution B was used as the electrolyte. After deposition at 40 V for 2 h, the Bi plate was taken out and dried naturally to obtain nanosheets BiF 3 Thin film, denoted as BiF 3 -2.

Embodiment 3

[0034] In the first step, prepare 100 mL of mixed solution A with a volume ratio of 1:20 ethylene glycol and distilled water, and weigh 1 g of analytically pure NH 4 F is placed in solution A, fully stirred to make it completely dissolved, as solution B;

[0035] In the second step, use 400-mesh abrasive paper to polish the 4 cm × 1.5 cm × 0.5 cm Bi board smoothly, rinse the polished Bi board with solution A in the first step, and set it aside;

[0036] In the third step, the Bi plate in the second step is used as the anode, the graphite is used as the cathode, the distance between the cathode and the anode is 8 cm, and the solution B is used as the electrolyte. After deposition at a voltage of 30 V for 3 h, the Bi plate is taken out and dried naturally to obtain Nanosheet BiF 3 Thin film, denoted as BiF 3 -3.

[0037] BiF 3 The film was applied to the photocatalytic degradation of Rhodamine B.

[0038] Accurately weigh 10 mg of Rhodamine B, put it into a 1000 mL quantita...

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Abstract

The invention discloses an electrochemistry preparation method of a nano flaky BiF3 film and application of the nanometer flaky bismuth fluoride film, and belongs to the fields of Bi-based film photocatalytic material research and development, a solar energy photocatalyst immobilization technology and an organic pollutant disposal technology. The problems that the existing film immobilization technology is complicated or higher in energy consumption are solved. A Bi plate is taken as an anode, graphite is taken as a cathode, and a mixed solution is taken as electrolyte; in the mixed solution,concentration of ammonium fluoride is 0.5%-1.5%, and the volume ratio of ethylene glycol to distilled water is different; under normal temperature and normal pressure, in-situ growth of the nano flakyBiF3 film is on the Bi plate and the preparation method is a simple, economical and feasible nano flaky Bi-based catalyst film immobilization technology. The nano flaky BiF3 film is applied to photocatalytic degradation of Rhodamine B, is environmentally friendly in process, simple in technology, easy to operate, high in repeatability and short in period.

Description

technical field [0001] The invention belongs to the technical fields of research and development of Bi-based thin-film photocatalytic materials, solar photocatalyst immobilization technology, and organic pollutant treatment technology, and specifically relates to an electrochemical preparation method and application of a nano-flaky bismuth fluoride thin film. Background technique [0002] With the rapid progress of human social life and the rapid development of modern industry, the living environment is gradually facing the hazards of gas, liquid and solid pollutants. Effective control of environmental pollution and environmental protection of resources has become one of the major problems facing and urgently to be solved by human society. However, solar photocatalytic oxidation technology utilizes renewable and clean resource solar energy to treat organic pollutants, and has attracted extensive attention due to its advantages such as energy convenience, simple reaction, deep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/24B01J27/12B01J35/02C02F1/30C02F101/30C02F101/34C02F101/38
CPCB01J27/12B01J35/065C02F1/30C02F2101/308C02F2101/34C02F2101/38C02F2305/10C25B1/245Y02P20/133
Inventor 张小超李瑜李双志李瑞赵祖张长明王韵芳王雅文刘建新樊彩梅
Owner TAIYUAN UNIV OF TECH
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