Method for treating antibiotics by using iron porphyrin-flaky bismuth tungstate two-dimensional composite material

A composite material, iron porphyrin technology, applied in the direction of special compound water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of increasing costs and achieve the effect of enhancing photocatalytic activity and improving separation efficiency

Active Publication Date: 2019-02-01
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these catalytic processes still require additional addition of H 2 o 2 , will increase a lot of cost in practical application

Method used

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  • Method for treating antibiotics by using iron porphyrin-flaky bismuth tungstate two-dimensional composite material
  • Method for treating antibiotics by using iron porphyrin-flaky bismuth tungstate two-dimensional composite material
  • Method for treating antibiotics by using iron porphyrin-flaky bismuth tungstate two-dimensional composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0043] A method for treating antibiotics by using an iron porphyrin-flaky bismuth tungstate two-dimensional composite material, specifically using the iron porphyrin-flaky bismuth tungstate two-dimensional composite material to treat tetracycline in different water source environments, comprising the following steps:

[0044] According to the mass ratio of iron porphyrin-flaky bismuth tungstate two-dimensional composite material and tetracycline in the tetracycline solution is 20:1, get 4 parts of iron porphyrin-flaky bismuth tungstate two-dimensional composite material (1HBWO), respectively add to Dark treatment was carried out in tetracycline pure water (DW), tap water (TW), lake water (LW), and river water (RW) with an initial concentration of 10 mg / L, that is, stirring for 60 minutes under dark conditions to achieve the adsorption of tetracycline After equilibrium, photocatalytic treatment was carried out for 60 minutes under the stirring condition of 800r / min and the light...

Embodiment 2

[0056] A method for treating antibiotics by using an iron porphyrin-flaky bismuth tungstate two-dimensional composite material, specifically using the iron porphyrin-flaky bismuth tungstate two-dimensional composite material to treat tetracycline in water bodies with different ion concentrations, comprising the following steps:

[0057] According to the mass ratio of the iron porphyrin-flaky bismuth tungstate two-dimensional composite material and the tetracycline in the tetracycline solution is 20:1, get 3 parts of the iron porphyrin-flaky bismuth tungstate two-dimensional composite material prepared in Example 1 (1HBWO), were added to containing SO 4 2- , CO 3 2- , Cl - , NO 3 - Dark treatment was carried out in the tetracycline solution (the concentration of tetracycline in the tetracycline solution was 10mg / L), that is, stirring under dark conditions for 60min, after reaching the adsorption equilibrium of tetracycline, under the stirring condition of 800r / min and the ...

Embodiment 3

[0060] A method for treating antibiotics by using iron porphyrin-flaky bismuth tungstate two-dimensional composite materials, specifically using iron porphyrin-flaky bismuth tungstate two-dimensional composite materials with different mass ratios to treat tetracycline in water, including the following step:

[0061] According to the mass ratio of iron porphyrin-flaky bismuth tungstate two-dimensional composite material and tetracycline in tetracycline solution is 20:1, take iron porphyrin-flaky bismuth tungstate two-dimensional composite material (0.5HBWO, 1HBWO, 3HBWO, 5HBWO , 7HBWO), flaky bismuth tungstate (2DBWO) and iron porphyrin-bismuth tungstate three-dimensional composite (3D HBWO), respectively added to the tetracycline solution with an initial concentration of 10mg / L for dark treatment, that is, under dark conditions Stir for 60 minutes, after reaching the adsorption equilibrium for tetracycline, carry out photocatalytic treatment for 60 minutes under the condition ...

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Abstract

The invention discloses a method for treating antibiotics by using an iron porphyrin-flaky bismuth tungstate two-dimensional composite material, wherein antibiotic are treated with an iron porphyrin-flaky bismuth tungstate two-dimensional composite material, the iron porphyrin-flaky bismuth tungstate two-dimensional composite material comprises iron porphyrin and flaky bismuth tungstate, and the iron porphyrin is immobilized on the surface of the flaky bismuth tungstate. According to the present invention, the photocatalytic performance of the iron porphyrin-flaky bismuth tungstate two-dimensional composite material is effectively improved through the combined effect of bismuth tungstate photocatalytic oxidation and Hemin-type photo-Fenton reaction, such that the photocatalytic activity isobviously enhanced so as to well degrade tetracycline; and the method has advantages of simple operation, short cycle, easy recycling, high degradation efficiency and the like, achieves the effectiveand rapid degradation of antibiotics, and has good application prospects in actual antibiotic wastewater treatment.

Description

technical field [0001] The invention belongs to the field of advanced oxidation treatment of organic matter, and relates to a method for treating antibiotics, in particular to a method for treating antibiotics by using an iron porphyrin-flaky bismuth tungstate two-dimensional composite material. Background technique [0002] Nowadays, water pollution caused by the overuse of antibiotics is a serious environmental problem, which has received extensive attention all over the world. A large amount of antibiotics accumulate in the water environment, and due to their toxicity and refractory biodegradability, they are likely to be converted into carcinogenic and teratogenic substances, posing a serious threat to humans and aquatic organisms. Removal of antibiotics from wastewater is very difficult due to the high solubility of most antibiotics in water. Common antibiotic treatment technologies, such as membrane filtration, adsorption, oxidation, and biological treatment, are limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72B01J31/34C02F101/34C02F101/38
CPCB01J31/34B01J35/004C02F1/722C02F1/725C02F2101/34C02F2101/38C02F2305/026C02F2305/10
Inventor 易欢曾茁桐肖嵘曾光明赖萃黄丹莲秦蕾刘希贵安子文柳诗语黄芳龙符玉葵张明明
Owner HUNAN UNIV
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