Method for treating antibiotic wastewater by using cobalt ion-doped metal organic framework material

A metal-organic framework and antibiotic wastewater technology, applied in water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problem of low-cost, large-scale production of metal-organic framework materials, low photocatalytic activity Good, poor adsorption performance and other problems, to achieve high application value and commercial value, simple treatment process, low cost effect

Active Publication Date: 2018-06-15
HUNAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the existing metal-organic framework materials still have problems such as poor adsorption performance and poor photocatalytic activity.
In addition, the existing process of synthesizing metal-organic framework materials is often complicated, cumbersome and low-yield, making it difficult to produce metal-organic framework materials at low cost and on a large scale

Method used

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  • Method for treating antibiotic wastewater by using cobalt ion-doped metal organic framework material
  • Method for treating antibiotic wastewater by using cobalt ion-doped metal organic framework material
  • Method for treating antibiotic wastewater by using cobalt ion-doped metal organic framework material

Examples

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Embodiment 1

[0036] A method for treating antibiotic wastewater by using cobalt ion-doped metal-organic framework materials, specifically using cobalt ion-doped metal-organic framework materials to adsorb tetracycline hydrochloride in water, comprising the following steps:

[0037] Weigh cobalt ion-doped metal-organic framework materials (CoUiO-1, CoUiO-2, CoUiO-4, CoUiO-8) and UiO-66 (Zr), each 20 mg, add to 100 mL, concentration of 20 mg / L In the tetracycline hydrochloride wastewater (the pH value of the antibiotic wastewater is 4.76), the treatment of tetracycline hydrochloride was completed by oscillating and adsorbing for 3 hours in the dark at a speed of 300 r / min.

[0038] In this embodiment, the cobalt ion-doped metal-organic framework material (CoUiO-1) used includes cobalt ions and UiO-66 (Zr), and the cobalt ions are doped in the UiO-66 (Zr). The specific surface area of ​​cobalt ion-doped metal-organic framework (CoUiO-1) is 815.178 m 2 / g.

[0039] In this example, the prepa...

Embodiment 2

[0053] A method for treating antibiotic wastewater by using cobalt ion-doped metal-organic framework materials, specifically using cobalt ion-doped metal-organic framework materials to adsorb tetracycline hydrochloride in water, comprising the following steps:

[0054] Weigh 6 parts of the cobalt ion-doped metal-organic framework material (CoUiO-1) in Example 1, 20 mg each, and add them to tetracycline hydrochloride wastewater with pH values ​​of 2, 4, 6, 8, 10, and 12, The tetracycline hydrochloride wastewater has a volume of 100mL and a concentration of 20 mg / L, and is shaken and adsorbed for 3 hours in the dark at a speed of 300 r / min to complete the treatment of tetracycline hydrochloride.

[0055] After the shaking adsorption is finished, take 4mL sample and centrifuge the sample. Get the supernatant clear night that centrifuges gained and measure absorbance by ultraviolet-visible spectrophotometer, determine the concentration of tetracycline hydrochloride after adsorptio...

Embodiment 3

[0058]A method for treating antibiotic wastewater by using cobalt ion-doped metal-organic framework materials, specifically using cobalt ion-doped metal-organic framework materials to adsorb tetracycline hydrochloride in water, comprising the following steps:

[0059] Weigh 4 parts of the cobalt ion-doped metal-organic framework (CoUiO-1) in Example 1, 20 mg each, and add them to concentrations of 10 mg / L, 30 mg / L, 50 mg / L, 70 mg / L, respectively. In the tetracycline hydrochloride wastewater of L, the volume of the tetracycline hydrochloride wastewater is 100mL, and the pH value is 10. The treatment of tetracycline hydrochloride is completed in the dark and under the condition of rotating speed of 300 r / min.

[0060] After the shaking adsorption is finished, take 4mL sample and centrifuge the sample. Get the supernatant clear night that centrifuges gained and measure absorbance by ultraviolet-visible spectrophotometer, determine the concentration of tetracycline hydrochloride a...

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Abstract

The invention discloses a method for treating antibiotic wastewater by using a cobalt ion-doped metal organic framework material. The method comprises the following steps: mixing the cobalt ion-dopedmetal organic framework material and the antibiotic wastewater, and performing oscillating adsorption to complete treatment to the antibiotic wastewater, wherein the cobalt ion-doped metal organic framework material comprises cobalt ions and UiO-66(Zr), and the cobalt ions are doped in the UiO-66(Zr). By the method for treating the antibiotic wastewater by using the cobalt ion-doped metal organicframework material, a treatment technology is simple, operation is convenient, equipment is simple, the cost is low, the treatment efficiency is high, the removing effect is good, the repeated utilization rate is high, and cleanness and no pollution are achieved; the method is a treatment method which can be widely applied and by which antibiotics can be effectively removed, and has a very high application value and a very high commercial value.

Description

technical field [0001] The invention belongs to the field of antibiotic wastewater treatment, and relates to a method for treating antibiotic wastewater, in particular to a method for treating antibiotic wastewater by using cobalt ion-doped metal organic framework materials. Background technique [0002] With the development of industry and agriculture, a large amount of toxic and harmful wastewater is discharged into the water environment, which pollutes the water environment and seriously endangers human health. For example, antibiotic wastewater, as refractory wastewater, seriously endangers the environment and human health. Therefore, how to effectively treat antibiotic wastewater is a worldwide problem that needs to be solved urgently in water pollution control, and it is also a hot spot in current research. The traditional process of treating antibiotic wastewater generally has disadvantages such as high cost, slow reaction, easy to cause secondary pollution, and diffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28C02F1/30C02F101/38
CPCB01J20/226C02F1/285C02F1/30C02F2101/38
Inventor 曹姣杨朝晖熊炜平李鑫徐锐张燕茹柯托谢靓程金佳慧
Owner HUNAN UNIV
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