氨基化磁性还原氧化石墨烯的制备及其对甲基橙吸附研究  

Preparation of aminated magnetically reduced graphene oxide and its adsorption properties on methyl orange

作　　者：丘关南 龚圣[2] QIU Guannan;GONG Sheng(Zhaoqing Xuyuan Environmental Protection Technology Co.,Ltd,Zhaoqing 526236,China;College of Chemistry and Chemical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China)

机构地区：[1]肇庆旭源环保科技有限公司,广东肇庆526236 [2]仲恺农业工程学院化学化工学院,广东广州510225

出　　处：《仲恺农业工程学院学报》2025年第1期6-11,共6页Journal of Zhongkai University of Agriculture and Engineering

摘　　要：水中存在有机染料会造成生态和公共卫生问题,对受到有机染料污染的水进行修复具有重要意义.本研究采用共沉淀法合成氨基化磁性还原氧化石墨烯(NH2-MrGO),并用其吸附水中的甲基橙(Methyl Orange,MO)染料;通过SEM、Zeta电位、FT-IR和磁滞回线等先进技术对合成的复合材料进行表征,考察温度和pH值对其吸附性能的影响.结果表明,NH2-MrGO对MO的最大吸附量为15.7 mg/g,去除率为78.5%,且吸附过程符合Freundlich模型,可为水中的有机染料污染物的治理与消除提供实践支持与数据参考.The presence of organic dyes in water causes significant ecological and public health problems,thus remediation of water contaminated with organic dyes is of great importance.In this paper,aminated magnetically reduced graphene oxide(NH2-MrGO)was synthesised by co-precipitation method and used for the adsorption of methyl orange(MO)in water.The synthesized composites were characterized by advanced techniques,including scanning electron microscopy(SEM),Zeta potential,fourier transform infrared spectroscopy(FT-IR),and hysteresis return line analysis.Subsequently,the temperature and pH on the adsorption properties were investigated.The findings of the study indicated that the maximum adsorption of MO by NH2-MrGO was 15.7 mg/g,with a removal rate of 78.5%.Meanwhile,the adsorption process was found to be consistent with the Freundlich model.This study can provide theoretical support and data reference for the treatment and elimination of organic dye pollutants in water.

关 键 词：还原氧化石墨烯 氨基化 磁性 吸附 甲基橙 

分 类 号：TQ610.9[化学工程—精细化工]