一种磁铁矿纳米酶活性的检测方法及其再生方法
The activity and regeneration of magnetite nanozymes were detected by Fe isotope fractionation, which solved the problem that existing technologies could not accurately assess their activity stability and regeneration pathway, and achieved efficient regeneration and cost optimization of magnetite nanozymes.
CN122218155BActive Publication Date: 2026-07-17UNIV OF SCI & TECH OF CHINA
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH OF CHINA
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
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Figure CN122218155B_ABST
Abstract
本发明涉及环境催化与水处理工程领域，具体是一种磁铁矿纳米酶活性的检测方法及其再生方法。本发明通过利用物理刻蚀去除磁铁矿纳米酶表层活性层，测定刻蚀前后样品的Fe同位素组成变化，依据Fe²+易富集轻同位素、Fe³+易富集重同位素的分馏规律，解析磁铁矿内外层铁物种分布及迁移行为，从而判定磁铁矿内部Fe²+向表面迁移导致活性位点持续再生，同时利用Fe同位素分馏结果，判定磁铁矿纳米酶的活性状态，并以不同氧化态的磁铁矿纳米酶建立催化剂活性判断标准实现适时投加Fe2+再生催化剂活性位点，不仅反映水处理与环境修复领域中纳米酶活性稳定性，避免盲目投加Fe2+产生铁泥等污染。
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