一种光催化协同类芬顿反应催化降解染料废水的方法

By utilizing the unique two-dimensional structure and chemical bonding of Fe3O4-TiO2 magnetic nanosheets, the problem of insufficient catalytic activity of traditional Fe3O4 nanoparticles is solved, enabling efficient, rapid, and low-cost degradation of RhB dye wastewater. The catalyst also exhibits good reusability and stability.

CN118754292BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (BEIJING)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Filing Date
2024-06-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient for the efficient and low-cost catalytic degradation of Rhodamine B in dye wastewater. Traditional Fe3O4 nanoparticles suffer from carrier recombination and aggregation, which affects catalytic activity.

Method used

Fe3O4-TiO2 magnetic nanosheets were used as photocatalysts. TiO2 and Fe3O4 were connected by chemical bonds to form a unique two-dimensional nanostructure, which promoted the transfer of photogenerated electrons and suppressed the recombination of electron-hole pairs. This combined photocatalysis and Fenton-like reaction to achieve synergistic catalytic degradation.

Benefits of technology

It achieves efficient, rapid and low-cost degradation of RhB dye wastewater. The catalyst has good reusability and stability, and the degradation rate still exceeds 90% after 5 cycles.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种光催化协同类芬顿反应催化降解染料废水的方法。所述方法包括如下步骤:S1、将Fe3O4‑TiO2磁性纳米片加入至待处理的染料废水中,避光处理;S2、向染料废水中加入H2O2,在光照下进行光催化降解反应,即实现对所述染料废水的催化降解;Fe3O4‑TiO2磁性纳米片按照包括如下步骤的方法制备:Sa、将氨水加入至Fe3O4磁性纳米片的分散液中;Sb、将钛酸丁酯的溶液滴加至步骤Sa得到的溶液中,进行反应;Sc、将步骤Sb得到的产物分散后,加入氨水,然后置于反应釜中进行热处理即得。本发明实现了对RhB染料废水的高效、快速和低成本降解,为废水催化降解材料的设计和应用提供了新的研究思路。
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