| 沙柳基磁性多孔炭的制备及其吸附亚甲基蓝性能研究 |
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| 引用本文： | 温俊峰,刘侠,马向荣,党睿. 沙柳基磁性多孔炭的制备及其吸附亚甲基蓝性能研究[J]. 功能材料, 2021, 52(4): 4184-4191 |
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| 作者姓名： | 温俊峰 刘侠 马向荣 党睿 |
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| 作者单位： | 榆林学院 化学与化工学院,陕西 榆林 719000;陕西省低变质煤洁净利用重点实验室,陕西 榆林 719000;榆林学院 化学与化工学院,陕西 榆林 719000 |
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| 基金项目： | 国家自然科学基金资助项目(21763030);陕西省教育厅重点实验室科研计划资助项目(20JS159,20JS160)。 |
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| 摘 要： | 采用水热法原位改性沙柳生物炭制备磁性多孔炭复合材料,利用SEM、XRD、FT-IR、XPS和BET分别对多孔炭的形貌、结构表征,并研究磁性多孔炭吸附去除废水中亚甲基蓝性能.系列表征分析结果表明磁性复合材料表面疏松多孔,比表面积为63.01 m2/g,含有-COOH、-OH等丰富的官能团.在亚甲基蓝初始质量浓度为50 m...
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| 关 键 词： | 沙柳 磁性多孔炭 亚甲基蓝 吸附等温线 动力学 |
Preparation of magnetic porous carbon from Salix and adsorption properties for methylene blue |
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| WEN Junfeng,LIU Xia,MA Xiangrong,DANG Rui. Preparation of magnetic porous carbon from Salix and adsorption properties for methylene blue[J]. Journal of Functional Materials, 2021, 52(4): 4184-4191 |
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| Authors: | WEN Junfeng LIU Xia MA Xiangrong DANG Rui |
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| Affiliation: | (School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000, China;Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, Yulin 719000, China) |
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| Abstract: | The magnetic porous carbon composites(nano-Fe3O4/SAC)are prepared by nano-Fe3O4 modified salix activated carbon via in-situ hydrothermal method.The adsorption performance of methylene blue(MB)aqueous solution on nano-Fe3O4/SAC is studied.The results of XRD,SEM,FT-IR,XPS and BET revealed that the surface of the magnetic composite is loose and porous,with a specific surface area of 63.01 m2/g and rich functional groups such as-COOH and-OH.When the initial concentration of methylene blue is 50 mg/L,the pH is 11,dosage of Nano-Fe3O4/SAC is 2 g/L,and the adsorption time is 120 min at 25℃,the MB removal rate could reach over 88.52%,and the maximum adsorption capacity is 218.08 mg/g.The adsorption process fits well with Langmuir adsorption isotherm model and Pseude-secondary kinetics model.The adsorption is mainly chemical adsorption with stable adsorption and no secondary pollution.The adsorbent is cheap,easy to obtain and easy to separate,which is an ideal reagent for methylene blue wastewater treatment. |
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| Keywords: | salix magnetic porous carbon methylene blue adsorption isotherm kinetics |
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