| 磁性纳米材料Fe3O4-RGO-NH2对Ag+的吸附性能研究 |
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| 引用本文： | 吴娟,贺沁婷,程庆霖,任芳,陈卓涵,赵雨,曾诗豪,张莹.磁性纳米材料Fe3O4-RGO-NH2对Ag+的吸附性能研究[J].贵金属,2021,42(3):15-20. |
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| 作者姓名： | 吴娟 贺沁婷 程庆霖 任芳 陈卓涵 赵雨 曾诗豪 张莹 |
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| 作者单位： | 江苏理工学院 化学与环境工程学院，江苏 常州 213001 |
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| 基金项目： | 国家自然科学基金青年项目(51902141)；江苏省自然科学青年基金(BK20191038)；常州市科技计划项目(CJ20210072)；江苏理工学院人才引进项目(KYY17021)；2021年大学生创新创业训练计划江苏省重点项目(202111463009Z) |
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| 摘 要： | 采用一步溶剂热法成功制备了新型磁性纳米吸附剂Fe3O4-RGO-NH2，用透射电子显微镜(TEM)、X射线衍射(XRD)、振动样品磁力计(VSM)及Zeta电势对其形貌及晶型结构进行了表征，研究了Fe3O4-RGO-NH2纳米吸附剂对水溶液中Ag+的吸附性能。结果表明，水溶液pH值对Ag+吸附具有很大影响，pH=4.0时吸附效果最佳。Ag+最大吸附量随着初始浓度及吸附时间的增加而增加，Ag+的吸附符合准二级动力学模型。
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| 关 键 词： | 磁性 纳米吸附剂 制备 银离子(Ag+) 捕获性能 |
| 收稿时间： | 2020/12/17 0:00:00 |
Study on adsorption performance of magnetic nano material Fe3O4-RGO-NH2 for Ag+ |
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| WU Juan,HE Qin-ting,CHENG Qing-lin,REN Fang,CHEN Zhuo-han,ZHAO Yu,ZENG Shi-hao,ZHANG Ying.Study on adsorption performance of magnetic nano material Fe3O4-RGO-NH2 for Ag+[J].Precious Metals,2021,42(3):15-20. |
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| Authors: | WU Juan HE Qin-ting CHENG Qing-lin REN Fang CHEN Zhuo-han ZHAO Yu ZENG Shi-hao ZHANG Ying |
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| Affiliation: | School of Chemical and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, Jiangsu, China |
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| Abstract: | A new type of magnetic nano-adsorbent Fe3O4-RGO-NH2 was successfully prepared by one-step solvothermal method. The morphology and crystal structure of the prepared Fe3O4-RGO-NH2 nano-adsorbent were characterized by transmission electron microscopy(TEM), X-ray diffraction(XRD), vibrating sample magnetometer(VSM) and Zeta potential. The adsorption performance of Fe3O4-RGO- NH2 nano-adsorbent for Ag+ in aqueous solution was studied. The results showed that the pH value of the aqueous solution had a major impact on Ag+ adsorption, and that the adsorption effect was the best when pH=4.0. The maximum adsorption capacity of Ag+ increases with initial concentration and adsorption time, and the adsorption process of Ag+ is the pseudo-second-order kinetics model. |
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| Keywords: | magnetism nano-adsorbent preparation silver ions (Ag+) capture performance |
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