1. Adsorption of Th(IV) from aqueous solution by the graphene oxide nanoribbons/chitosan composite material.
- Author
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Wu, Peng, Wang, Yun, Li, Yang, Hu, Xuewen, Xiu, Taoyuan, Yuan, Dingzhong, Liu, Yan, Wu, Zhenyu, and Liu, Zhirong
- Subjects
GRAPHENE oxide ,COMPOSITE materials ,NANORIBBONS ,AQUEOUS solutions ,WASTE treatment ,THORIUM - Abstract
In order to reduce the potential toxicity to the environment after treatment of radioactive waste water, an eco-friendly graphene oxide nanoribbons/chitosan (GONRs-CTS) composite was prepared and utilized for adsorption of Th(IV) from aqueous solution. The GONRs-CTS adsorbent was characterized by XRD, FTIR and SEM, indicating that GONRs-CTS contains a large amount of oxygen-containing groups and chitosan was successfully attached to the GONRs surface. The Th(IV) adsorption on GONRs-CTS was endothermic and spontaneous, with the maximum single layer adsorption capacity was 140.6 mg g
−1 at pH = 3.0, in the contact time of 12 h. The adsorption process was consistent with pseudo-second-order kinetics and the Langmuir isotherm model. [ABSTRACT FROM AUTHOR]- Published
- 2019
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