Modified soil remediation material and preparation method and application thereof
By modifying graphene oxide with carboxymethyl chitosan and combining it with MXene, a modified soil remediation material was developed, which solved the problems of low remediation efficiency and nanomaterial aggregation in farmland contaminated with heavy metals, and achieved efficient and stable heavy metal fixation and reduction remediation.
CN122405286APending Publication Date: 2026-07-17XI AN JIAOTONG UNIV
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XI AN JIAOTONG UNIV
- Filing Date
- 2026-05-20
- Publication Date
- 2026-07-17
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Figure CN122405286A_ABST
Abstract
本发明涉及土壤修复新材料领域，具体涉及一种改性土壤修复材料及其制备方法和应用，改性土壤修复材料是由MXene材料包覆附着在羧甲基壳聚糖改性氧化石墨烯表面得到，MXene材料在改性土壤修复材料中的质量比为0.2%~1%；羧甲基壳聚糖改性氧化石墨烯由羧甲基壳聚糖与氧化石墨烯交联制备得到。本发明的改性土壤修复材料对于土壤中的重金属具有很好的固定修复能力，而且重金属被固定至改性土壤修复材料后，被固定的重金属具有更好的固化稳定性，在酸、碱条件下再次流失至土壤中的风险很小，而且以羧甲基壳聚糖改性氧化石墨烯为基体材料，减少了颗粒材料的团聚现象，避免了颗粒材料的团聚影响材料对土壤中重金属的修复性能。
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