A molybdenum disulfide modified lignin-based hydrothermal carbon material, a preparation method thereof and application thereof in repairing heavy metal pollution

The lignin-based hydrothermal carbon material modified with MoS2 solves the problems of limited adsorption capacity and insufficient selectivity in complex heavy metal pollution, and achieves efficient adsorption and stable remediation of a variety of heavy metals. It also has good environmental adaptability and resource utilization characteristics.

CN122399748APending Publication Date: 2026-07-17HENAN AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN AGRICULTURAL UNIVERSITY
Filing Date
2026-05-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively address complex heavy metal pollution. Traditional single-pollution treatment technologies are ineffective when multiple metals coexist. Furthermore, MoS2 materials are prone to agglomeration, have poor dispersibility, are difficult to recycle, and lack structural stability in practical applications.

Method used

By combining MoS2 with lignin-based hydrothermal carbon materials, lignin is used as a stabilizing carrier to improve the dispersibility of MoS2, and MoS2 is used to increase active sulfur sites and defect structures, thereby enhancing the complexation and fixation ability of various heavy metal ions, thus preparing MoS2-modified lignin-based hydrothermal carbon materials.

Benefits of technology

It improves the adsorption capacity and selectivity of the material, enhances its adsorption performance on complex heavy metal pollution systems, improves material stability and environmental adaptability, and also has green, low-carbon and resource utilization value.

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Abstract

本发明属于重金属污染治理技术领域,具体涉及一种MoS2修饰的木质素基水热炭材料及其制备方法和在修复重金属污染中的应用。本发明将木质素的水分散液调节pH值至3~9后,依次进行预处理和第一步水热反应,所得木质素水热炭材料、硫源、钼源和水混合,进行第二步水热反应,得到MoS2修饰的木质素基水热炭材料。本发明提供的MoS2修饰的木质素基水热炭材料提高MoS2的分散性并抑制其团聚的同时增加木质素基水热炭材料表面的活性硫位点和缺陷结构,增强对多种重金属离子的络合与固定能力,提升其在复合重金属污染体系中的吸附性能与环境适应性。
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