[1]倪 元,马 嫣.磁性氧化石墨烯的制备及对铜离子吸附性能的研究[J].南京师范大学学报(自然科学版),2017,40(04):70.[doi:10.3969/j.issn.1001-4616.2017.04.011]
　Ni Yuan,Ma Yan.Study on Preparation and Cu2+ Ions AdsorptionCharacterization of Magnetic Graphene Oxide[J].Journal of Nanjing Normal University(Natural Science Edition),2017,40(04):70.[doi:10.3969/j.issn.1001-4616.2017.04.011]
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磁性氧化石墨烯的制备及对铜离子吸附性能的研究()
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《南京师范大学学报》（自然科学版）[ISSN:1001-4616/CN:32-1239/N]

卷:
第40卷
期数:
2017年04期
页码:
70
栏目:
·化学·
出版日期:
2017-12-30

文章信息/Info

Title:
Study on Preparation and Cu2+ Ions AdsorptionCharacterization of Magnetic Graphene Oxide
文章编号:
1001-4616(2017)04-0070-04
作者:
倪 元; 马 嫣
南京信息工程大学环境科学与工程学院,江苏 南京 210044
Author(s):
Ni Yuan; Ma Yan
School of Environmental Science and Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China
关键词:
磁性氧化石墨烯; 吸附; 铜离子; 准二级动力学
Keywords:
magnetic graphene oxide; absorption; cupric ions; pseudo second kinetics
分类号:
TQ138.1
DOI:
10.3969/j.issn.1001-4616.2017.04.011
文献标志码:
A
摘要:
以Hummers法制备二维氧化石墨烯,并通过原位合成Fe3O4赋予氧化石墨烯以磁性,得到具有良好铜离子吸附效率和高磁性的磁性氧化石墨烯材料. 以NH3·H2O-NH4Cl缓冲溶液替代碱液,克服了传统制备方法中由于体系pH值持续降低导致产品性能下降的缺陷. 透射电镜测试结果表明,该材料具有良好的二维片层结构. 磁学及吸附测试结果表明,该材料具有强磁性和优异的Cu2+吸附性能.
Abstract:
We synthesized 2D graphene oxide with Hummers’ method,endowed the graphene oxide with magnetism by Fe3O4 that was prepared by in situ synthesis,and finally obtained magnetic graphene oxide with high magnetism and good adsorption efficiency for cupric ion. In the synthesis,alkaline liquor was replaced with NH3·H2O-NH4Cl buffer solution. This overcame the drawback from traditional ways in which the property of products is compromised due to the continuous decrease in the pH value of systems. The result of TEM showed that the magnetic graphene oxide possessed excellent 2D layered structure. The results of magnetic property and adsorption experiment showed that the magnetic graphene oxide had strong magnetism and outstanding adsorption efficiency for cupric ion. The result of adsorption kinetics suggested that the adsorption is a process of pseudo second kinetics and has an adsorption way where chemical adsorption mechanism controls the speed.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-09-08.
通讯联系人:倪元,工程师,研究方向:水处理. E-mail:54494897@qq.com
更新日期/Last Update: 2017-12-30