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Preparation method of titanium dioxide nanotube network catalytic plate and application of titanium dioxide nanotube network catalytic plate to treatment of antibiotics resistance genes in sludge

A technology of antibiotic resistance and titanium dioxide, which is applied in the direction of titanium dioxide, oxidation treatment sludge, titanium oxide/hydroxide, etc., can solve the problems of many toxic by-products, poor treatment effect of antibiotic resistance genes, etc., and achieve high removal efficiency Effect

Pending Publication Date: 2021-11-05
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0008] The invention provides a preparation method of a titanium dioxide nanotube network catalytic plate and its application in the treatment of sludge antibiotic resistance genes, so as to solve the problems of poor treatment effect on antibiotic resistance genes and more toxic by-products produced

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  • Preparation method of titanium dioxide nanotube network catalytic plate and application of titanium dioxide nanotube network catalytic plate to treatment of antibiotics resistance genes in sludge

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Embodiment 1

[0029] The preparation method of the titanium dioxide nanotube network catalytic plate of the present embodiment is carried out according to the following steps:

[0030] S1: Titanium plate pretreatment: Cut the titanium plate with a thickness of 0.3 mm into a rectangle with a length × width of 50 × 30 mm, and place it in acetone, absolute ethanol and deionized water for ultrasonic cleaning for 30 minutes to remove titanium. oxides and residual oil on the board surface;

[0031] S2: Put the pretreated titanium plate in the polytetrafluoroethylene lining of the high-pressure reactor, make the titanium plate vertically against the edge of the polytetrafluoroethylene lining to increase the contact area between the titanium plate and the NaOH solution, and then Add 60mL of NaOH solution with a concentration of 7mol / L, put the polytetrafluoroethylene liner into the high-pressure reactor, and react at a temperature of 160°C for 4h;

[0032] S3: After the temperature of the high-pre...

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Abstract

The invention discloses a preparation method of a titanium dioxide nanotube network catalytic plate and application of the titanium dioxide nanotube network catalytic plate to treatment of antibiotics resistance genes in sludge. The preparation method of the titanium dioxide nanotube network catalytic plate comprises the steps that a titanium plate is subjected to ultrasonic treatment for 20-30 min in acetone, absolute ethyl alcohol and deionized water in sequence, then the titanium plate is taken out and put into a sodium hydroxide solution, a reaction is conducted for 2-4 h at a temperature of 130-170 DEG C, and then the titanium plate is washed with hydrochloric acid for 10-12 hours and then subjected to drying and annealing to obtain the titanium dioxide nanotube network catalytic plate. According to the preparation method of the titanium dioxide nanotube network catalytic plate and the application of the titanium dioxide nanotube network catalytic plate to the treatment of the antibiotics resistance genes in sludge, a TiO2 nanotube network generated on the surface of the titanium plate is excited by ultraviolet light to generate a hole oxidation effect, so the resistance genes in sludge are degraded, removal efficiency is high, operation cost is low, and the generation risk of trichloromethane and other toxic by-products with mutagenesis and carcinogenic effects and the risk of secondary pollution are reduced.

Description

technical field [0001] The invention relates to the technical field of sludge antibiotic resistance genes, in particular to a preparation method of a titanium dioxide nanotube network catalytic plate and its application in sludge antibiotic resistance gene treatment. Background technique [0002] In recent years, the abuse of antibiotics has become more and more serious, resulting in a large amount of antibiotics entering sewage. Higher residues of antibiotics in the environment induce bacterial resistance, forming a large number of resistant bacteria carrying resistance genes (ARGs). ARGs can easily spread within and between species through mechanisms such as genetics and horizontal gene transfer, which will pose a major genetic pollution risk to the water environment, agricultural environment, and human settlements, and cause long-term and irreversible harm to the safety of the ecosystem. However, the traditional sewage treatment process has no obvious effect on the remov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06C01G23/047C02F11/06
CPCB01J21/063C01G23/047C02F11/06
Inventor 于航孙甜甜朱益民阮玲玉曹雨徽何浩维董志浩
Owner DALIAN MARITIME UNIVERSITY
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