Method for preparing efficient photocatalyst for photocatalytic degradation of tetracycline by using electric furnace dust

By using ZnFe2O4@ZnO photocatalyst prepared by electric furnace dust, efficient degradation of tetracycline in water is achieved, and the problems of low efficiency and high cost of tetracycline removal in the prior art are solved. The material has the characteristics of magnetic recyclability and has good application prospects.

CN119735261APending Publication Date: 2025-04-01YUNNAN MINZU UNIV
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Patent Information

Application Number
CN202411938594.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

As a broad-spectrum antibacterial agent, tetracycline is difficult to metabolize by human and animal organisms, causing it to accumulate in water, posing a serious threat to ecosystems and public health. The prior art has problems of low efficiency and high cost in removing and degrading tetracycline in water bodies.

Method used

The efficient heterojunction photocatalyst ZnFe2O4@ZnO is prepared by using electric furnace dust, and the tetracycline is degraded by photocatalyzing. The method includes collecting electric furnace dust and washing it with ultrasonic water, mixing it with acid and alkali solution for modification, and heat treatment at high temperatures, and finally preparing a ZnFe2O4@ZnO photocatalyst with excellent photocatalytic activity.

Benefits of technology

It has achieved efficient removal of tetracycline in water, has good photogenerated electrons and hole separation capabilities, is simple to operate, is cheap to cost, and the prepared material is magnetically recyclable, solving the problem that photocatalysts are difficult to recycle and reuse.

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Abstract

The invention belongs to the technical field of solid waste recycling and water pollution control and utilization, and particularly relates to a method for preparing a high-efficiency photocatalyst for photocatalytic degradation of tetracycline by using electric furnace dust, which comprises the following specific steps: step 1, collecting electric furnace dust from steel plants or other industrial processes; the method comprises the following steps: mixing electric furnace dust with deionized water, carrying out ultrasonic washing, removing surface impurities and soluble salts, filtering, pouring into a drying oven, drying, controlling the temperature of the drying oven at 80-100 DEG C, and continuously drying for 3-10 hours to obtain a solid product; according to the invention, solid wastes generated in the iron and steel industry can be utilized with high added value, and the problems of resource waste, environmental pollution and the like are reduced; the material obtained by roasting has good photo-induced electron and hole separation capability, so that the material has excellent photocatalytic activity and has good application prospects in the field of environmental purification.
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