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Zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst and preparation method thereof

A photocatalyst and magnetic nanotechnology, applied in the direction of chemical instruments and methods, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc., can solve problems such as difficult separation and recovery, easy aggregation of photocatalysts, poor adsorption, etc., to achieve easy Acquisition, good catalytic effect, effect of lowering the threshold

Inactive Publication Date: 2019-01-04
四川省有色冶金研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing photocatalysts are used to remove the above-mentioned organic substances, but the existing photocatalysts have the problems of easy agglomeration, poor adsorption, and difficulty in separation and recovery during use.

Method used

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  • Zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst and preparation method thereof
  • Zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A kind of zeolite loaded Bi 1-x R x VO 4 -Fe 3 o 4 Magnetic nano photocatalyst and preparation method thereof,

[0058] Photocatalyst chemical formula: Bi 1-x R x VO 4 -Fe 3 o 4 / zeolite, where R is La, x is 0.05, and its molecular formula is Bi 0.95 La 0.05 VO 4 -Fe 3 o 4 / Zeolite.

[0059] Specific preparation method:

[0060] in N 2Under protection, the Fe 2 (SO 4 ) 3 Dissolve in distilled water, heat in the reactor at constant temperature, and control the temperature at 50-60°C, stir for 10-15 minutes, then add FeSO 4 ·7H 2 O continue to stir;

[0061] The mixed solution of sodium dodecylbenzenesulfonate (SDBS), ammonia water and deionized water was dropped into the reactor under strong stirring, and the pH value of the reaction solution was adjusted to stop for 10 hours, and then the temperature was raised to 55-65°C. Stir vigorously for 65-75 minutes, then ultrasonically disperse for 15-25 minutes to obtain the product;

[0062] The obtain...

Embodiment 2

[0067] A kind of zeolite loaded Bi 1-x R x VO 4 -Fe 3 o 4 Magnetic nano photocatalyst and preparation method thereof,

[0068] Photocatalyst chemical formula: Bi 1-x R x VO 4 -Fe 3 o 4 / zeolite, where R is La, x is 0.1, and its molecular formula is Bi 0.9 La 0.1 VO 4 -Fe 3 o 4 / Zeolite.

[0069] Specific preparation method:

[0070] in N 2 Under protection, the Fe 2 (SO 4 ) 3 Dissolve in distilled water, heat in the reactor at constant temperature, and control the temperature at 50-60°C, stir for 10-15 minutes, then add FeSO 4 ·7H 2 O continue to stir;

[0071] The mixed solution of sodium dodecylbenzenesulfonate (SDBS), ammonia water and deionized water was dropped into the reactor under strong stirring, and the pH value of the reaction solution was adjusted to stop for 10 hours, and then the temperature was raised to 55-65°C. Stir vigorously for 65-75 minutes, then ultrasonically disperse for 15-25 minutes to obtain the product;

[0072] The obtained...

Embodiment 3

[0077] A kind of zeolite loaded Bi 1-x R x VO 4 -Fe 3 o 4 Magnetic nano photocatalyst and preparation method thereof,

[0078] Photocatalyst chemical formula: Bi 1-x R x VO 4 -Fe 3 o 4 / zeolite, where R is La, x is 0.15, and its molecular formula is Bi 0.85 La 0.15 VO 4 -Fe 3 o 4 / Zeolite.

[0079] Specific preparation method:

[0080] in N 2 Under protection, the Fe 2 (SO 4 ) 3 Dissolve in distilled water, heat in the reactor at constant temperature, and control the temperature at 50-60°C, stir for 10-15 minutes, then add FeSO 4 ·7H 2 O continue to stir;

[0081] The mixed solution of sodium dodecylbenzenesulfonate (SDBS), ammonia water and deionized water was dropped into the reactor under strong stirring, and the pH value of the reaction solution was adjusted to stop for 10 hours, and then the temperature was raised to 55-65°C. Stir vigorously for 65-75 minutes, then ultrasonically disperse for 15-25 minutes to obtain the product;

[0082] The obtai...

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Abstract

The invention discloses a zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst. The molecular formula of the photocatalyst is Bil-xRxVO4-Fe3O4 / zeolite, wherein R is La or Pr, and x is 0-0.3. Apreparation method of the photocatalyst comprises the steps that a certain amount of R2O3 is weighed for use, concentrated nitric acid is added in R2O3, cooling is conducted, and a R(NO3)3 crystal isobtained; a certain amount of citric acid, Bi(NO3)3 5H2O, NH4VO3 and R(NO3)3 are weighed, the materials are added in distilled water, stirring is conducted, and precursor sol is obtained; zeolite, Fe3O4 and the distilled water are added in the precursor sol, the mixture is stirred to be uniform, heat preservation is conducted, and then the zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst is obtained. According to the magnetic nano photocatalyst, the catalytic effect is better compared with the catalytic effect of an existing photocatalyst, and the magnetic nano photocatalyst has theadvantages that the cost is low, the universality is high, and the requirements on raw materials are greatly lowered. The raw materials are easy to obtain, the threshold of production implementing islowered, and the magnetic nano photocatalyst is applicable to popularization, application and large-scale industrial production.

Description

technical field [0001] The present invention relates to the technical field of photocatalyst, specifically, refers to a kind of zeolite loaded Bi 1-x R x VO 4 -Fe 3 o 4 Magnetic nano photocatalyst and preparation method thereof. Background technique [0002] Photocatalyst is a general term for chemical substances that can play a catalytic role under the excitation of photons. [0003] With the continuous development and progress of our country's economy, the scale of cities and towns continues to expand, and the water consumption and drainage of cities and towns continue to increase, which aggravates the tension of water use and the pollution of water quality. my country discharges a large amount of industrial wastewater every year, causing serious pollution to the environment. Among them, papermaking and paper products industry; chemical raw material and chemical product manufacturing industry; textile industry, coal mining and washing industry and other industries ac...

Claims

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Application Information

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IPC IPC(8): B01J23/847C02F1/32C02F1/72C02F101/38
CPCC02F1/32C02F1/725B01J23/002B01J23/8472C02F2101/40C02F2305/023C02F2305/10B01J2523/00B01J35/39B01J35/33B01J2523/3706B01J2523/54B01J2523/55B01J2523/842B01J2523/3718
Inventor 陈思竹
Owner 四川省有色冶金研究院有限公司
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