Bifunctional material based on steel slag as well as preparation method and application of bifunctional material

By preparing SS-Fe catalyst and SS-Ca adsorbent, the problems of carbon emissions and low efficiency of steel slag resource utilization in advanced oxidation technologies were solved, achieving efficient degradation of antibiotics and CO2 capture, and providing a feasible path for water pollution treatment and resource recovery.

CN122124742APending Publication Date: 2026-06-02KUNMING UNIV OF SCI & TECH
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Patent Information

Application Number
CN202610128020.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-29
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing advanced oxidation technologies have carbon emission problems when treating antibiotic pollutants, and steel slag has low resource utilization efficiency and limited functions, leading to environmental pollution and resource waste.

Method used

By pretreating and acid leaching steel slag, SS-Fe catalyst and SS-Ca adsorbent were prepared for catalytic degradation of antibiotics and simultaneous CO2 capture, thus constructing a degradation-adsorption synergistic system.

Benefits of technology

It has enabled the high-value utilization of steel slag, the efficient degradation of antibiotics by catalysts, and the efficient capture of CO2 by adsorbents, thus solving the carbon emission problem and providing a feasible path for water pollution treatment and resource recycling.

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Abstract

The invention discloses a bifunctional material based on steel slag and a preparation method and application thereof, and belongs to the technical field of solid waste recycling and environmental pollution control. According to the method, the iron-rich catalyst and the calcium-rich adsorbent are respectively prepared by taking solid waste steel slag in the steel industry as a raw material through a selective leaching process. The iron-rich catalyst is used for efficiently activating PMS (peroxymonosulfate) to degrade tetracycline antibiotics in a water body in a system of photocatalytic peroxymonosulfate (PMS); meanwhile, the calcium-rich adsorbent can capture CO2 generated by mineralization in the antibiotic degradation process in situ, so that multiple targets of solid waste recycling and pollution and carbon reduction are achieved. The method is wide in raw material source, low in cost and simple and convenient in process, the high-added-value resource utilization level of the steel slag is effectively improved, the problem of carbon emission accompanied by a traditional advanced oxidation technology is solved, and a new thought is provided for a wastewater treatment and carbon emission reduction collaborative technology.
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