| 基于三维石墨烯去除水体中四环素 |
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| 引用本文： | 韩春晓,阮敏娜,李忠平,张煜昕,伊雯雯.基于三维石墨烯去除水体中四环素[J].环境化学,2022,41(1):386-394. |
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| 作者姓名： | 韩春晓 阮敏娜 李忠平 张煜昕 伊雯雯 |
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| 作者单位： | 山西大学环境科学研究所,环境与资源学院,太原,030006;山西大学环境科学研究所,环境与资源学院,太原,030006;理德东方科技(北京)有限公司,北京,100029 |
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| 基金项目： | 山西省自然科学基金(201801D121042)； |
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| 摘 要： | 三维石墨烯具有较大的比表面积和独特的空间孔结构,为捕获抗生素提供大量的活性位点,能够促进抗生素在多孔网络结构的运输。本研究采用化学还原自组装方法制备了有序多孔结构的三维石墨烯(3DG),并将其应用于去除水体中的四环素(TC)。研究结果显示,TC在3DG的吸附过程同时符合伪二级动力学和Langmuir方程。在最佳吸附pH=6时,3DG对TC最大饱和吸附量达到322.58 mg·g-1,并具备良好的再生性能,经过5次吸附-解吸重复试验后,3DG对水体中TC的去除率仍可达68%。因此,3DG是一种在环境分析领域具有良好应用前景的吸附材料。
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| 关 键 词： | 三维石墨烯 四环素 去除 再生 |
The removal of tetracycline in water based on 3D grapheme |
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| HAN Chunxiao,RUAN Minna,LI Zhongping,ZHANG Yuxin,YI Wenwen.The removal of tetracycline in water based on 3D grapheme[J].Environmental Chemistry,2022,41(1):386-394. |
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| Authors: | HAN Chunxiao RUAN Minna LI Zhongping ZHANG Yuxin YI Wenwen |
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| Institution: | (Institute of Environmental Science,College of Environment and Resources,Shanxi University,Taiyuan,030006,China;Leader Oriental Technology(Beijing)Co.,Ltd,Beijing,100029,China) |
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| Abstract: | Three-dimensional graphene can provide abundant active sites for trapping the antibiotic and promoting the transportation of antibiotic in the porous network structure based on its large surface area and interconnected porous structure.In this study,porous three-dimensional graphene aerogel(3DG)was prepared by using chemical reduction and self-assembly method,and applied to remove tetracycline(TC)from water.The results revealed that 3DG exhibited good adsorption performance towards TC,with maximum adsorption amount being 322.58 mg·g-1 at pH=6,the adsorption process of TC on 3DG accords with pseudo-second-order kinetics and Langmuir model.3DG has good regeneration performance.After 5 repeated adsorption-desorption experiments,the removal rate was kept 68%.Thus,3DG is a promising adsorbent in field of environmental analysis. |
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| Keywords: | three-dimensional graphene tetracycline removal regeneration |
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