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Yuan X, Yin C, Zhang Y, Chen Z, Xu Y, Wang J. Synthesis of C@Ni-Al LDH HSS for efficient U-entrapment from seawater. Sci Rep 2019; 9:5807. [PMID: 30967584 PMCID: PMC6456493 DOI: 10.1038/s41598-019-42252-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 03/18/2019] [Indexed: 11/09/2022] Open
Abstract
In this paper, a double hollow spherical shell composite modified with layered double hydroxide (C@Ni-Al LDH HSS) was fabricated for uranium(VI) (U(VI)) adsorption. Various batch experiments were carried out to investigate the influence of pH, concentration, time and coexistence ion on extraction. The results showed that the adsorption processes of U(VI) onto C@Ni-Al LDH HSS were spontaneous and endothermic and closely followed pseudo-second-order and Langmuir isotherm models. The equilibrium time and maximum adsorption capacity of C@Ni-Al LDH HSS was 360 min and 545.9 mg g-1. FT-IR and XPS analyses proved that the adsorption behavior was primarily attributed to the strong interaction between oxygen-containing functional groups and U(VI). Moreover, the extraction of trace U(VI) (μg L-1) in artificial and natural seawater was also studied. The results showed that C@Ni-Al LDH HSS provided a promising application for the efficient extraction of U(VI) from seawater.
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Affiliation(s)
- Xiaoyu Yuan
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin, 150001, China. .,College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin, 150050, China. .,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Chunyue Yin
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin, 150001, China.,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Yuanyuan Zhang
- College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Zengyue Chen
- College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Yifan Xu
- College of Materials and Chemical Engineering, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, Harbin Engineering University, Harbin, 150001, China.,College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.,Harbin Engineering University Capital Management Co. Ltd, Harbin, 150001, China.,Institute of Advanced Marine Materials, Harbin Engineering University, Harbin, 150001, China
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