柑橘皮提取液绿色合成纳米Fe3O4及其吸附水中孔雀石绿的性能研究  

Green Synthesis of Fe3O4 Nanomaterials Using Citrus Reticulata Peels Extract and its Application in Removal of Malachite Green

作　　者：张梦凡 李春光 王聪 王强 杜晨阳 柳雨晴 杨洁 王寒蕊 ZHANG Mengfan;LI Chunguang;WANG Cong;WANG Qiang;DU Chenyang;LIU Yuqing;YANG Jie;WANG Hanrui(Zhengzhou Key Laboratory of environmental functional materials,Zhengzhou University of Aeronautics,Zhengzhou 450046,China)

机构地区：[1]郑州航空工业管理学院郑州市环境功能材料重点实验室,河南郑州450046

出　　处：《郑州航空工业管理学院学报》2024年第3期81-87,共7页Journal of Zhengzhou University of Aeronautics

基　　金：国家自然科学基金项目(21771165);河南省科技攻关基金资助项目(222102310285);郑州航院研究生教育创新计划基金项目(2023CX73)。

摘　　要：以柑橘皮提取液为还原剂和稳定剂,绿色合成Fe3O4纳米材料,利用扫描电子显微镜(SEM)、X射线衍射图谱(XRD)、傅立叶变换红外光谱(FT-IR)等手段对材料进行表征,并考察了其对孔雀石绿(MG)的吸附性能。结果表明:绿色合成纳米Fe3O4呈不规则圆球体,分散性和结晶度较好。在投加量为1.0 g/L、初始pH为4、温度为25℃、初始浓度为20 mg/L时,对孔雀石绿的吸附率达到95.33%。纳米Fe3O4对MG的吸附过程分别符合准二级动力学方程和Langmuir等温方程。热力学研究表明,纳米Fe3O4吸附MG是自发吸热过程。绿色合成纳米Fe3O4重复利用4次吸附率仍在70%以上。The Fe3O4 nanomaterials were green-synthesized by the peels extract of Citrus reticulata as the reducing agent and stabilizer.The physical and chemical properties of Fe3O4 nanomaterials were characterized with scanning electron microscope(SEM),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),and the adsorp⁃tion performance of Malachite Green was investigated.The results show that green synthetic nano-Fe3O4 is an irregu⁃lar sphere with good dispersion and crystallinity.The adsorption rate of MG can reach 95.33%when the adsorption time of 2 h,solution pH of 4,material dosage of 20 mg,MG concentration of 20 mg/L,at 25℃.The results showed that the adsorption kinetics and adsorption isotherm of MG adsorption by nano-Fe3O4 were mainly inaccordance with the pseudo-second-order kinetics model,and Langmuir model.Thermodynamic studies showed that the adsorption process of MG onto nano-Fe3O4 was an endothermic process with spontaneous.The adsorption rate can reach more than 70%after reuse for 4 times.

关 键 词：柑橘皮 绿色合成 纳米FE3O4 孔雀石绿 吸附 

分 类 号：TB383.1[一般工业技术—材料科学与工程]