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Method for treating antibiotic wastewater by utilizing visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode

A technology of antibiotic wastewater and photoelectric catalysis, applied in chemical instruments and methods, special compound water treatment, light water/sewage treatment, etc., can solve the problems of stability and repeatability decline, limited promotion and application, weak light utilization ability, etc. , achieving the effects of simple and easy-to-obtain reagents, high cycle efficiency, and improved degradation efficiency

Active Publication Date: 2020-03-06
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few applications of MOFs in photoelectrocatalytic systems, and existing research is still stuck in the process of constructing photoanodes by coating powdered catalysts on conductive glass, which leads to a continuous decline in stability and reproducibility.
In addition, there are few studies on the in-situ growth of MOFs loaded onto substrates, and the existing MOFs composites are mainly in powder form, which is difficult to effectively recycle and easily causes secondary pollution. The existence of the above problems, such as weak utilization ability, greatly limits its promotion and application in the environment.

Method used

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  • Method for treating antibiotic wastewater by utilizing visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode
  • Method for treating antibiotic wastewater by utilizing visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode
  • Method for treating antibiotic wastewater by utilizing visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A method for treating antibiotic wastewater by using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode, specifically using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode as an anode to treat sulfamethazine in wastewater through a photoelectric catalytic reaction processing, including the following steps:

[0042] With material electrode (TiO 2 -NTs, ZIF-8 / TiO 2 , NF-TiO 2 、ZIF-8 / NF-TiO 2 ) as anode, Cu sheet as counter electrode, Ag / AgCl electrode as reference electrode, put into 100ml sulfamethazine wastewater containing sodium sulfate (the concentration of sodium sulfate in this wastewater is 0.5mol / L, sulfamethazine Concentration of 10mg / L, pH=3.5) for 3h in the photocatalytic reaction, wherein the photocatalytic reaction is carried out under the visible light source, the voltage is 2.0V, to complete the treatment of sulfamethazine.

[0043] In this example, the visible light responsive ...

Embodiment 2

[0063] A method for treating antibiotic wastewater by using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode, specifically using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode as an anode to treat sulfamethazine in wastewater through a photoelectric catalytic reaction processing, including the following steps:

[0064] With the visible light response semiconductor-MOFs hybrid photocatalytic material electrode (ZIF-8 / NF-TiO 2 ) as anode, Cu sheet as counter electrode, Ag / AgCl electrode as reference electrode, put into 100ml sulfamethazine wastewater containing sodium sulfate (the concentration of sodium sulfate in this wastewater is 0.5mol / L, sulfamethazine The concentration is 10mg / L, pH=3.5), carry out photoelectric catalytic reaction under different conditions, complete the treatment of sulfamethazine.

[0065] Condition 1: Apply visible light source and 2V voltage for 3h.

[0066] Condition 2: A...

Embodiment 3

[0073] A method for treating antibiotic wastewater by using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode, specifically using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode as an anode to treat sulfamethazine in wastewater through a photoelectric catalytic reaction processing, including the following steps:

[0074] With the visible light response semiconductor-MOFs hybrid photocatalytic material electrode (ZIF-8 / NF-TiO 2 ) as anode, Cu sheet as counter electrode, Ag / AgCl electrode as reference electrode, put into 100ml sulfamethazine wastewater containing sodium sulfate (the concentration of sodium sulfate in this wastewater is 0.5mol / L, sulfamethazine concentration of 10 mg / L, pH=3.5), the photocatalytic reaction was carried out at voltages of 1.0V, 1.5V, 2.0V, 2.5V, and 3.0V for 3 hours, wherein the photocatalytic reaction was carried out under a visible light source, and the Treatment of sulf...

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Abstract

The invention discloses a method for treating antibiotic wastewater by utilizing a visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode. According to the method, avisible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode is used as an anode to treat antibiotics in wastewater through photoelectrocatalytic reaction; according to the visible light response semiconductor-MOFs hybrid photoelectrocatalytic material electrode, a nitrogen-fluorine co-doped titanium dioxide electrode plate is used as an electrode substrate, and is loaded with ZIF-8. The method provided by the invention not only has the advantages of quick recycling, good removal effect, high circulation efficiency, high practicability and the like, but also has the advantages of less raw material consumption, no secondary pollution, simple and easily available used reagents and the like, is a treatment method which can be widely used and can effectively remove antibiotics in water, and has quite high use value and application prospect.

Description

technical field [0001] The invention belongs to the technical field of preparation of photocatalytic electrode materials, and in particular relates to a method for treating antibiotic wastewater by using a visible light responsive semiconductor-MOFs hybrid photocatalytic material electrode. Background technique [0002] With the continued widespread use of pharmaceuticals and increasing demand for personal care and beauty products, water pollution has gradually become a major environmental concern worldwide. Water pollution caused by antibiotics has become an emerging problem in recent years due to their high solubility, durability, and high toxicity. Antibiotic concentrations of 100 ng L have been reported in untreated domestic sewage -1 to 6 μg L -1 . Sulfa antibiotics are one of the commonly used antibiotics. They are highly toxic to low-concentration bacteria and are prone to resistance to natural populations of bacteria. Therefore, how to effectively treat sulfa anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/30C02F1/461C02F1/72B01J31/22B01J27/24B01J37/34C02F101/34C02F101/38
CPCC02F1/30C02F1/46109C02F1/4672B01J31/1691B01J27/24B01J37/348C02F2001/46133C02F2101/34C02F2101/38C02F2101/40C02F2305/10B01J2531/26B01J2531/0213B01J35/33B01J35/39
Inventor 贾美莹杨朝晖徐海音熊炜平张燕茹曹姣宋佩佩孙赛武
Owner HUNAN UNIV
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