Research on the adsorption capacity of nanotube spheres for uranyl ions

doi:10.11894/1005-829x.2017.37(3).008

INDUSTRIAL WATER TREATMENT ›› 2017, Vol. 37 ›› Issue (3): 34-36. doi: 10.11894/1005-829x.2017.37(3).008

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Research on the adsorption capacity of nanotube spheres for uranyl ions

Li Lili^1,2, Chen Hui¹, Zhang Yexin¹, Zhang Yajie¹, Han Lei²

1. Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
2. College of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China

Received:2016-10-28 Online:2017-03-20 Published:2017-03-30

碳纳米管小球型材吸附铀酰离子的性能研究

李丽丽^1,2, 陈慧¹, 张业新¹, 张亚杰¹, 韩磊²

1. 中国科学院宁波材料技术与工程研究所, 浙江宁波 315201;
2. 宁波大学材料科学与化学工程学院, 浙江宁波 315211

通讯作者: 张业新,副研究员。电话:0574-86669487,E-mail:zhangyexin@nimte.ac.cn E-mail:zhangyexin@nimte.ac.cn
作者简介:李丽丽(1990—),硕士。E-mail:lilili@nimte.ac.cn。
基金资助:
国家自然科学基金项目（51422212，21307142）；宁波市科技计划项目（2015A610248，2015B11003，2014D10004）

Abstract

Abstract:

Using polystyrene resin spheres as the precursor,a kind of carbon nanotube(CNT)sphere has been synthesized by vapor deposition method,which can be applied to the adsorption of uranyl ions in radioactive wastewater. The test results show that when the pH is in the range of 4-8,the adsorption capacity for uranyl ions reaches the maximum value. The adsorption for uranyl ions is Langmuir monolayer adsorption with the theoretically maximal adsorption capacity of 73.42 mg/g. Meanwhile,the analysis of adsorption kinetics demonstrates that the adsorption is pseudo-second-order kinetics.

Key words: carbon nanotube spheres, uranyl ions, adsorption, radioactive wastewater treatment

摘要：

以聚苯乙烯树脂小球为前驱体，采用气相沉积法合成了碳纳米管小球型材，将其应用于对放射性废水中铀酰离子的吸附。测试结果显示，当pH处于4~8时，吸附量达到最大值。铀酰离子的吸附为Langmuir单层吸附，理论最大吸附量为73.42 mg/g。同时吸附动力学分析表明，该吸附为拟二级化学吸附。

关键词: 碳纳米管小球, 铀酰离子, 吸附, 放射性废水处理

CLC Number:

X703

Li Lili, Chen Hui, Zhang Yexin, Zhang Yajie, Han Lei. Research on the adsorption capacity of nanotube spheres for uranyl ions[J]. INDUSTRIAL WATER TREATMENT, 2017, 37(3): 34-36.

李丽丽, 陈慧, 张业新, 张亚杰, 韩磊. 碳纳米管小球型材吸附铀酰离子的性能研究[J]. 工业水处理, 2017, 37(3): 34-36.

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https://www.iwt.cn/EN/Y2017/V37/I3/34

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碳纳米管小球型材吸附铀酰离子的性能研究

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