水热法制备MHG复合材料对甲基橙吸附效能的提升机理

The mechanism of improving the adsorption efficiency of methyl orange by hydrothermal preparation of MHG composites

摘要

甲基橙作为典型有机染料，其在废水中的稳定性强，处理难度大，需开发高效吸附材料。文章研究了水热法制备的氢氧化镁/氧化石墨烯（MHG）复合材料在甲基橙吸附中的性能，分析了材料的结构特征、比表面积与表面官能团构成对吸附等温行为和动力学特性的影响，探讨了π-π堆积作用、孔结构优化及官能团协同对吸附效能提升的机理。该研究可为构建高效可再生的吸附材料体系提供实验依据，对印染废水中难降解有机污染物的高效去除具有现实工程应用价值和理论机制指导意义。

Abstract

Methyl orange, a typical organic dye, is highly stable in wastewater and challenging to treat, necessitating the development of efficient adsorption materials. This study examines the performance of magnesium hydroxide/graphene oxide (MHG) composites prepared by the hydrothermal method in methyl orange adsorption. It analyzes how the material’s structural characteristics, specific surface area, and surface functional groups influence the adsorption isotherm behavior and kinetics. The study explores the mechanisms by which π-π stacking, pore structure optimization, and the synergistic effect of functional groups enhance adsorption efficiency. This research provides experimental evidence for constructing an efficient and renewable adsorption material system, offering practical engineering applications and theoretical guidance for the effective removal of refractory organic pollutants from dyeing wastewater.

关键词

水热法 / MHG复合材料 / 甲基橙 / 吸附机理

Key words

hydrothermal method / MHG composite material / methyl orange / adsorption mechanism

参考文献

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[4] 马金环, 魏智强, 梁家浩, 等. 水热法合成rGO/Mo0.7Co0.3S2超级电容器电极复合材料[J]. 复合材料学报, 2022, 39(10): 4580-4589.

[5] 张孟丽. 3D打印ABS/TPU/CaSiO3骨架水热法生长ZnO复合材料的制备及性能研究[D]. 福建师范大学, 2021.

基金资助

黑龙江省省属本科高校基本科研业务费项目《石墨烯基纳米复合材料的制备及对印染废水的吸附性能研究》()