| 硫化纳米铁的制备及其对亚甲基蓝的去除 |
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| 引用本文： | 褚玲,徐琪,张宏,张文博.硫化纳米铁的制备及其对亚甲基蓝的去除[J].工业安全与环保,2020(1):76-79. |
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| 作者姓名： | 褚玲 徐琪 张宏 张文博 |
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| 作者单位： | 西北民族大学化工学院甘肃省高校环境友好复合材料及生物质利用省级重点实验室 |
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| 基金项目： | 甘肃省自然科学基金(18JR3RA370);西北民族大学中央高校基本科研业务费项目(31920190074);西北民族大学中央高校基本科研业务费专项资金资助研究生项目(Yxm2019131) |
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| 摘 要： | 为克服纳米零价铁易团聚、易氧化、电子选择性差等缺陷,引入硫对纳米铁进行改性制备了硫化纳米铁复合材料(S-nZVI),并利用透射电子显微镜(TEM)、X射线衍射仪(XRD)和傅里叶红外光谱(FTIR)等方法对制备的S-nZVI进行表征,同时研究了其对水溶液中亚甲基蓝(MB)的去除效果。S-nZVI对MB的去除过程符合准二级反应动力学模型,吸附等温线符合Langmuir模型。当MB初始质量浓度为1000 mg/L时,S-nZVI对MB的饱和去除量可达242.06 mg/g。
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| 关 键 词： | 纳米零价铁 硫化 亚甲基蓝 |
Preparation of Sulfided Nano-iron and Removal of Methylene Blue |
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| CHU Ling,XU Qi,ZHANG Hong,ZHANG Wenbo.Preparation of Sulfided Nano-iron and Removal of Methylene Blue[J].Industrial Safety and Dust Control,2020(1):76-79. |
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| Authors: | CHU Ling XU Qi ZHANG Hong ZHANG Wenbo |
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| Institution: | (School of Chemical Engineering,Key Laboratory for Utility of Environment-Friendly Composite Material and Biomass in University of Gansu Province,Northwest Minzu University,Lanzhou,730030) |
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| Abstract: | In order to overcome the defects of nanometer zero-valent iron,such as easy agglomeration,easy oxidation,poor electron selectivity,etc.Sulfur was introduced to modify nanometer iron to prepare sulfide nanometer iron composite material,the prepared S-nZVI was characterized by Transmission electron microscope(TEM),X-ray diffractometry(XRD)and Fourier transform infrared reflection(FTIR)and the removal effect of methylene blue(MB)in aqueous solution was studied.The removal process of S-nZVI to MB conformed to the quasi-second-order reaction kinetics model,and the adsorption isotherm conformed to the Langmuir model.When the initial MB concentration was 1000 mg/L,the removal amount of S-nZVI to MB can reach 242.06 mg/g. |
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| Keywords: | nanometer zero-valent iron sulfidation methylene blue |
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