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Wang J, Wang G, Deng X, Luo M, Xu S, Jiang B, Yuan G, An S, Liu J. One-pot synthesis of novel mesoporous FeOOH modified NaZrH(PO 4) 2·H 2O for the enhanced removal of Co(II) from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:5912-5927. [PMID: 38133758 DOI: 10.1007/s11356-023-31541-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
One-pot synthesis of a novel mesoporous hydroxyl oxidize iron functional Na-zirconium phosphate (FeOOH-NaZrH(PO4)2·H2O) composites was firstly characterized and investigated its Co(II) adsorption from aqueous solution. Compared to NaZrH(PO4)2·H2O (65.7 mg⋅g-1), the maximum Co(II) adsorption capacity of FeOOH-NaZrH(PO4)2·H2O was improved to be 95.1 mg⋅g-1. BET verified the mesoporous structures of FeOOH-NaZrH(PO4)2·H2O with a larger pore volume than NaZrH(PO4)2·H2O. High pH values, initial Co(II) concentration, and temperature benefited the Co(II) adsorption. Kinetics, isotherms, and thermodynamics indicated an endothermic, spontaneous chemisorption process. FeOOH-NaZrH(PO4)2·H2O has a better Co(II) adsorption selectivity than that of NaZrH(PO4)2·H2O. In particular, FeOOH-NaZrH(PO4)2·H2O exhibited an outstanding reusability after ten cycles of tests. The main possible mechanism for adsorbents uptake Co(II) involved in ion exchange, electrostatic interaction, and -OH, Zr-O bond coordination based on FTIR and XPS analysis. This work presents a feasible strategy to prepare novel modified zirconium phosphate composites for extracting Co(II) from solutions and providing a new insight into the understanding of Co(II) adsorption in the real nuclear Co(II)-containing wastewater.
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Affiliation(s)
- Jing Wang
- Chengdu University of Technology, College of Nuclear Technology and Automation Engineering, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, People's Republic of China
| | - Guangxi Wang
- Chengdu University of Technology, College of Nuclear Technology and Automation Engineering, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, People's Republic of China
| | - Xiaoqin Deng
- Sichuan Management and Monitoring Center Station of Radioactive Environment, Chengdu, 610039, People's Republic of China
| | - Maodan Luo
- Sichuan Management and Monitoring Center Station of Radioactive Environment, Chengdu, 610039, People's Republic of China
| | - Su Xu
- Sichuan Management and Monitoring Center Station of Radioactive Environment, Chengdu, 610039, People's Republic of China
| | - Bing Jiang
- Sichuan Management and Monitoring Center Station of Radioactive Environment, Chengdu, 610039, People's Republic of China
| | - Guoyuan Yuan
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, 401331, People's Republic of China
| | - Shuwen An
- Chengdu University of Technology, College of Nuclear Technology and Automation Engineering, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, People's Republic of China
| | - Jun Liu
- Chengdu University of Technology, College of Nuclear Technology and Automation Engineering, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, People's Republic of China.
- Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, People's Republic of China.
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Zhang Q, Shi W, Tan W, Xie Z. Apigenin/furfurylamine-based bio-polyamide/cyclophosphazene composite: Preparation and dual applications in dye adsorption and Pb (II) electrochemical probing. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sorption Profile of Low Specific Activity 99Mo on Nanoceria-Based Sorbents for the Development of 99mTc Generators: Kinetics, Equilibrium, and Thermodynamic Studies. NANOMATERIALS 2022; 12:nano12091587. [PMID: 35564296 PMCID: PMC9102646 DOI: 10.3390/nano12091587] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/28/2022] [Accepted: 05/05/2022] [Indexed: 12/12/2022]
Abstract
99Mo/99mTc generators play a significant role in supplying 99mTc for diagnostic interventions in nuclear medicine. However, the applicability of using low specific activity (LSA) 99Mo asks for sorbents with high sorption capacity. Herein, this study aims to evaluate the sorption behavior of LSA 99Mo towards several CeO2 nano-sorbents developed in our laboratory. These nanomaterials were prepared by wet chemical precipitation (CP) and hydrothermal (HT) approaches. Then, they were characterized using XRD, BET, FE-SEM, and zeta potential measurements. Additionally, we evaluated the sorption profile of carrier-added (CA) 99Mo onto each material under different experimental parameters. These parameters include pH, initial concentration of molybdate solution, contact time, and temperature. Furthermore, the maximum sorption capacities were evaluated. The results reveal that out of the synthesized CeO2 nanoparticles (NPs) materials, the sorption capacity of HT-1 and CP-2 reach 192 ± 10 and 184 ± 12 mg Mo·g–1, respectively. For both materials, the sorption kinetics and isotherm data agree with the Elovich and Freundlich models, respectively. Moreover, the diffusion study demonstrates that the sorption processes can be described by pore diffusion (for HT-synthesis route 1) and film diffusion (for CP-synthesis route 2). Furthermore, the thermodynamic parameters indicate that the Mo sorption onto both materials is a spontaneous and endothermic process. Consequently, it appears that HT-1 and CP-2 have favorable sorption profiles and high sorption capacities for CA-99Mo. Therefore, they are potential candidates for producing a 99Mo/99mTc radionuclide generator by using LSA 99Mo.
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Hu Z, Wang S, Yang Y, Zhou F, Liang S, Chen L. Enhanced Separation Performance of Radioactive Cesium and Cobalt in Graphene Oxide Membrane via Cationic Control. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1995-2002. [PMID: 35113573 DOI: 10.1021/acs.langmuir.1c02656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The great applications of nuclear power for the most promising clean energy sources have been challenged by a large amount of radioactive wastewater generated, specifically the Cs+/Co2+ separation for nuclear waste storage, retreatment or recycling of radioactive wastewater, because of their wide difference in half-life and high heat release. In this work, graphene oxide membranes (GOMs) with interlayer spacing controlled by cations were used to separate mixed Cs+/Co2+ ions. The separation factors of Cs+/Co2+ for K+-controlled graphene oxide membranes (K-GOMs) was 2∼3 times higher than that of GOMs without treatment. In addition, the separation factors of Cs+/Co2+ for K-GOMs can be further enhanced with the increase of membranes thickness and change the initial ratios of the two ions. Typically, the separation factors of K-GOMs with a thickness of ∼300 nm reached up to 73.7 ± 3.9. Moreover, the K-GOM showed outstanding stability of the separation performance under long-term operation within 7 days. First-principles calculation revealed that the enhanced ionic selectivity of controlled GOM is induced by the difference of adsorption energies between the hydrated cations and aromatic rings, resulting in a significant increase in the mobility differences between Cs+ and Co2+ through a fixed narrow interlayer spacing. This study demonstrated excellent separation performances of GO-based membranes based on their size-exclusion effect rather than electrostatic repulsion effect, and we believe this work can enable potential efficient treatment technologies for radioactive wastewater needed urgently.
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Affiliation(s)
- Zuyan Hu
- Department of Environment and Resources, Zhejiang A&F University, Hangzhou 311300, China
| | - Shuai Wang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China
- School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yizhou Yang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Feng Zhou
- Radiation Monitoring Technical Center of Ministry of Ecology and Environment, Key Laboratory of Radiation Environmental Safety Monitoring of Zhejiang Province, State Environmental Protection Key Laboratory of Radiation Environmental Monitoring, Hangzhou 310012, China
| | - Shanshan Liang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China
| | - Liang Chen
- Department of Environment and Resources, Zhejiang A&F University, Hangzhou 311300, China
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