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Yaqub M, Mee-Ngern L, Lee W. Cesium adsorption from an aqueous medium for environmental remediation: A comprehensive analysis of adsorbents, sources, factors, models, challenges, and opportunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175368. [PMID: 39122022 DOI: 10.1016/j.scitotenv.2024.175368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/07/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
Considering the widespread and indispensable nature of nuclear energy for future power generation, there is a concurrent increase in the discharge of radioactive Cs into water streams. Recent studies have demonstrated that adsorption is crucial in removing Cs from wastewater for environmental remediation. However, the existing literature lacks comprehensive studies on various adsorption methods, the capacities or efficiencies of adsorbents, influencing factors, isotherm and kinetic models of the Cs adsorption process. A bibliometric and comprehensive analysis was conducted using 1179 publications from the Web of Science Core Collection spanning from 2014 to 2023. It reviews and summarizes current publication trends, active countries, adsorption methods, adsorption capacities or efficiencies of adsorbents, tested water sources, influencing factors, isotherm, and kinetic models of Cs adsorption. The selection of suitable adsorbents and operating parameters is identified as a crucial factor. Over the past decade, due to their notable capacity for Cs adsorption, considerable research has focused on novel adsorbents, such as Prussian blue, graphene oxide, hydrogel, and nanoadsorbents (NA). However, there remains a need for further development of application-oriented laboratory-scale experiments. Future research directions should encompass exploring adsorption mechanisms, developing new adsorbents or their combinations, practical applications of lab-scale studies, and recycling radioactive Cs from wastewater. Drawing upon this literature review, we present the most recent research patterns concerning adsorbents to remove Cs, outline potential avenues for future research, and delineate the obstacles hindering effective adsorption. This comprehensive bibliometric review provides valuable insights into prevalent research focal points and emerging trends, serving as a helpful resource for researchers and policymakers seeking to understand the dynamics of adsorbents for Cs removal from water.
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Affiliation(s)
- Muhammad Yaqub
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi, Republic of Korea.
| | - Ladawan Mee-Ngern
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi, Republic of Korea
| | - Wontae Lee
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi, Republic of Korea.
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2
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Li F, Luo CY, Wen YZ, Lv S, Zeng GQ, Liu XH, Xiong C. Simulation and calibration of radiation monitoring of nuclear power plant containment sump waste liquid. Appl Radiat Isot 2024; 208:111311. [PMID: 38593592 DOI: 10.1016/j.apradiso.2024.111311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/11/2024]
Abstract
Waste liquid stored in the containment sumps of nuclear power plants may contain a variety of radionuclides. Real-time monitoring of containment sump waste liquid can ensure that accidents, such as leakage of cooling water, can be avoided. This paper presents the design of a radioactive monitoring system for waste liquid in a containment sump. The detector and the lead-shield in the measurement unit are optimized through Monte Carlo simulations. Experimental verification showed that the background count rate of the measurement chamber in the system was 418.3 cps, and the detection limit of the detection system was 3.01 Bq/L. Distinct gamma-ray characteristic peaks were also observable, demonstrating the system's ability to identify radioactive nuclides in the waste.
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Affiliation(s)
- Fei Li
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China; Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province (Chengdu University of Technology), Chengdu, 610000, China
| | - Chu-Yang Luo
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China
| | - Ying-Zi Wen
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China
| | - Sheng Lv
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China
| | - Guo-Qiang Zeng
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China; Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province (Chengdu University of Technology), Chengdu, 610000, China.
| | - Xiao-Hui Liu
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610000, China; Applied Nuclear Technology in Geosciences Key Laboratory of Sichuan Province (Chengdu University of Technology), Chengdu, 610000, China.
| | - Chao Xiong
- Data Recovery Key Laboratory of Sichuan Province, Neijiang Normal University, Neijiang, 641100, China
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Chen Z, Jia S, Sun H, Tang J, Guo Y, Yao Y, Pan T, Feng M, Huang X. All-in-one treatment: Capture and immobilization of 137Cs by ultra-stable inorganic solid acid materials HMMoO 6·nH 2O (M = Ta, Nb). WATER RESEARCH 2024; 255:121459. [PMID: 38513370 DOI: 10.1016/j.watres.2024.121459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
Capture and immobilization of 137Cs is urgent for radioactive contamination remediation and spent fuel treatment. Herein, an effective all-in-one treatment method to simultaneously adsorb and immobilize Cs+ without high-temperature treatment is proposed. According to the strategy of incorporating high-valency metal ions into molybdates to increase the material stability and affinity towards radionuclides, layered HMMoO6·nH2O (M = Ta (1), Nb (2)) are prepared. Both materials exhibit excellent acid resistance (even 15 mol/L HNO3). They maintain remarkable adsorption capacity for Cs+ in 1 mol/L HNO3 solutions and can selectively capture Cs+ under excessive competitive ions. Furthermore, they show successful cleanup for actual 137Cs-liquid-wastes generated during industrial production. In particular, adsorbed Cs+ can be firmly immobilized in interlayer spaces of materials due to the highly stable anionic framework. The removal mechanism is attributed to ion exchange between Cs+ and interlayer H+ by multiple characterizations. Study of the structure-function relationship shows that the occurrence of Cs+ ion exchange is closely related to plate-like layered structure. This work develops an efficient all-in-one treatment method for capturing and immobilizing radiocesium by ultra-stable inorganic solid acid materials with low energy consumption and high safety for radionuclide remediation.
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Affiliation(s)
- Zhihua Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | | | - Haiyan Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Junhao Tang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yanling Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Yuexin Yao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Tianyu Pan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China
| | - Meiling Feng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou, 350002, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Xiaoying Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
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4
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Rani L, Srivastav AL, Kaushal J, Shukla DP, Pham TD, van Hullebusch ED. Significance of MOF adsorbents in uranium remediation from water. ENVIRONMENTAL RESEARCH 2023; 236:116795. [PMID: 37541412 DOI: 10.1016/j.envres.2023.116795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/21/2023] [Accepted: 07/28/2023] [Indexed: 08/06/2023]
Abstract
Uranium is considered as one of the most perilous radioactive contaminants in the aqueous environment. It has shown detrimental effects on both flora and fauna and because of its toxicities on human beings, therefore its exclusion from the aqueous environment is very essential. The utilization of metal-organic frameworks (MOFs) as an adsorbent for the removal of uranium from the aqueous environment could be a good approach. MOFs possess unique properties like high surface area, high porosity, adjustable pore size, etc. This makes them promising adsorbents for the removal of uranium from contaminated water. In this paper, sources of uranium in the water environment, human health disorders, and application of the different types of MOFs as well as the mechanisms of uranium removal have been discussed meticulously.
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Affiliation(s)
- Lata Rani
- Centre for Water Sciences, Chitkara University Institute of Engineering & Technology, Chitkara University, Punjab, India; Chitkara School of Pharmacy, Chitkara University, Himachal Pradesh, India
| | - Arun Lal Srivastav
- Chitkara University School of Engineering and Technology, Chitkara University, Himachal Pradesh, India.
| | - Jyotsna Kaushal
- Centre for Water Sciences, Chitkara University Institute of Engineering & Technology, Chitkara University, Punjab, India
| | - Dericks P Shukla
- Department of Civil Engineering, Indian Institute of Technology, Mandi, Himachal Pradesh, India
| | - Tien Duc Pham
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi-19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam
| | - Eric D van Hullebusch
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, F-75005, Paris, France
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Alotaibi AM, Ismail AF, Aziman ES. Ultra-effective modified clinoptilolite adsorbent for selective thorium removal from radioactive residue. Sci Rep 2023; 13:9316. [PMID: 37291241 DOI: 10.1038/s41598-023-36487-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
This study investigated the efficacy of using phosphate-modified zeolite (PZ) as an adsorbent for removing thorium from aqueous solutions. The effects of various factors such as contact time, adsorbent mass, initial thorium concentration, and pH value of the solution on the removal efficiency were analyzed using the batch technique to obtain optimum adsorption condition. The results revealed that the optimal conditions for thorium adsorption were a contact time of 24 h, 0.03 g of PZ adsorbent, pH 3, and a temperature of 25 °C. Isotherm and kinetics parameters of the thorium adsorption on PZ were also determined, with equilibrium studies showing that the experimental data followed the Langmuir isotherm model. The maximum adsorption capacity (Qo) for thorium was found to be 17.3 mg/g with the Langmuir isotherm coefficient of 0.09 L/mg. Using phosphate anions to modify natural zeolite increased its adsorption capacity. Furthermore, adsorption kinetics studies demonstrated that the adsorption of thorium onto PZ adsorbent fitted well with the pseudo-second-order model. The applicability of the PZ adsorbent in removing thorium from real radioactive waste was also investigated, and nearly complete thorium removal was achieved (> 99%) from the leached solution obtained from cracking and leaching processes of rare earth industrial residue under optimized conditions. This study elucidates the potential of PZ adsorbent for efficient removal of thorium from rare earth residue via adsorption, leading to a reduction in waste volume for ultimate disposition.
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Affiliation(s)
- Abdulrahman Masoud Alotaibi
- Nuclear Science Programme, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia
- Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Aznan Fazli Ismail
- Nuclear Science Programme, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia.
- Nuclear Technology Research Centre, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia.
| | - Eli Syafiqah Aziman
- Nuclear Science Programme, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, 43600, Bangi, Selangor, Malaysia
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Song H, Nam K. Development of a potassium-based soil washing solution using response surface methodology for efficient removal of cesium contamination in soil. CHEMOSPHERE 2023; 332:138854. [PMID: 37149103 DOI: 10.1016/j.chemosphere.2023.138854] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/19/2023] [Accepted: 05/03/2023] [Indexed: 05/08/2023]
Abstract
The overuse of chelating soil washing agents for removal of heavy metal can release soil nutrients and negatively affect organisms. Therefore, developing novel washing agents that can overcome these shortcomings is necessary. In this study, we tested potassium as a main solute of novel washing agent for cesium-contaminated field soil, owing to the physicochemical similarities between potassium and cesium. Response surface methodology was combined with a four-factor, three-level Box-Behnken design to determine the superlative washing conditions of the potassium-based solution for the removal of cesium from the soil. The parameters that were considered were the following: potassium concentration, liquid-to-soil ratio, washing time, and pH. Twenty-seven sets of experiments were conducted using the Box-Behnken design, and a second-order polynomial regression equation model was obtained from the results. Analysis of variance proved the significance and goodness of fit of the derived model. Three-dimensional response surface plots displayed the results of each parameter and their reciprocal interactions. The washing conditions that achieved the highest cesium removal efficiency (81.3%) in field soil contaminated at 1.47 mg/kg were determined to be the following: a potassium concentration of 1 M, a liquid-to-soil ratio of 20, washing time of 2 h, and a pH of 2.
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Affiliation(s)
- Hojae Song
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea
| | - Kyoungphile Nam
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea.
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7
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Kim M, Eun S, Ryu J, Kim S. Efficient removal of Cs ion by electrochemical adsorption and desorption reaction using NiFe Prussian blue deposited carbon nanofiber electrode. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130215. [PMID: 36308927 DOI: 10.1016/j.jhazmat.2022.130215] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/20/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Prussian blue (PB) analog (NiFe, CoFe, FeFe, and commercial(cPB)) decorated carbon nanofiber (CNF) electrodes were synthesized by the drop casting method in this study to investigate the interaction between PB and CNF for the electrochemical adsorption (EA) and electrochemical desorption (ED) of Cs ion (Cs+). The adhesion of PB on the electrode and the EA and ED of Cs+ were substantially higher when the CNF electrode was used, compared with the fluorine-doped tin oxide supporting electrode. The use of CNF led to the smooth occurrence of EA and ED of Cs+, where the reported efficiency was: NiFe > FeFe > cPB. The EA and ED of Cs+ on NiFe decorated CNF (C-NiFe) were strongly affected by the loading amount of NiFe. Although the strongest EA capacity was identified when 1 mg of NiFe was used, it decreased as the loading amount of NiFe increased. Thus, the EA of Cs+ occurs under the reduction of NiFe with some Fe(III) reduced to Fe(II) of NiFe, thus inducing more adsorption of Cs+. Overall, we confirmed that the C-NiFe electrode with appropriate thickness of NiFe layer is potentially an excellent adsorbent for Cs removal.
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Affiliation(s)
- Minsun Kim
- Division of Energy Technology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Semin Eun
- Department of Interdisciplinary Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Jungho Ryu
- Mineral Resources Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Republic of Korea
| | - Soonhyun Kim
- Division of Energy Technology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea; Department of Interdisciplinary Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
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8
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Gao C, Yan W, Han S, Guo Y, Wang S, Deng T. Layer-by-layer Assembled Ferrocyanide Composite Fibers for Highly Efficient Removal of Cesium. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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9
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Alotaibi AM, Ismail AF. Modification of Clinoptilolite as a Robust Adsorbent for Highly-Efficient Removal of Thorium (IV) from Aqueous Solutions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192113774. [PMID: 36360653 PMCID: PMC9658948 DOI: 10.3390/ijerph192113774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 06/10/2023]
Abstract
The natural zeolite has been modified with sulphate and phosphate. The adsorption of thorium from the aqueous solutions by using the natural and modified zeolites has been investigated via a batch method. The adsorbent samples were characterized by X-ray Diffraction (XRD), N2 adsorption-desorption (BET), Fourier transform infrared (FTIR), field emission scanning electron microscopy (FESEM), and energy dispersive X-ray spectroscopy (EDX). Modification of natural zeolite with sulphate and phosphate was found to increase its adsorption capacity of thorium but reduced its specific surface area (SBET). The adsorption experiments were expressed by Langmuir, Freundlich and Dubinin-Radushkevitch (D-R) isotherm models and the results of adsorption demonstrated that the adsorption of thorium onto the natural and modified zeolites correlated better with the Langmuir isotherm model than with the Freundlich isotherm model. The maximum adsorption capacity (Qo) was determined using the Langmuir isotherm model at 25 °C and was found to be 17.27, 13.83, and 10.21 mg/g for phosphate-modified zeolite, sulfate-modified zeolite, and natural zeolite, respectively. The findings of this study indicate that phosphate-modified zeolite can be utilized as an effective and low-cost adsorbent material for the removal of thorium from aqueous solutions.
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Affiliation(s)
- Abdulrahman Masoud Alotaibi
- Nuclear Science Programme, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
- Department of Physics, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Aznan Fazli Ismail
- Nuclear Science Programme, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
- Nuclear Technology Research Centre, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
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Fuxiang S, Na W, Qiangqiang Z, Jie W, Bin L. 3D printing calcium alginate adsorbents for highly efficient recovery of U(VI) in acidic conditions. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129774. [PMID: 35988488 DOI: 10.1016/j.jhazmat.2022.129774] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
In this study, a three-dimensional (3D) porous calcium alginate (3D CA) scaffold was successfully constructed using a direct-ink-writing-based 3D printing method combined with an in-situ calcium ion cross-linking procedure. The 3D CA contained orderly aligned microstructures with excellent structural robustness and an abundant number of active binding sites. The adsorption experiments verified that 3D CA had a considerably wide pH value (3-10) serving range, but also delivered a significantly higher adsorption capacity for U(VI) (117.3 mg/g at pH = 2.5) under acidic conditions, compared to other previously reported alginate-based porous adsorbents. The adsorption mechanisms originated from the synergistic effect of electrostatic interactions and ion exchange. The 3D CA eluted the adsorbed U(VI) in a strong acid solution through protonation mechanism, facilitating the continued enrichment and recycling of U(VI). In addition, the 3D CA demonstrated good microstructure stability and absorption capacity stability when it was immersed in hydrochloric acid solutions at different concentrations (3.6 × 10-3 to 2 mol/L) for 24 h. Therefore, the 3D CA could be used for the removal and recycling of U(VI) from acidic solutions beyond its wide pH working range, due to its stronger acid stability and higher U(VI) adsorption capacity.
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Affiliation(s)
- Song Fuxiang
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Wang Na
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Zhang Qiangqiang
- College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Mechanics on Disaster and Environment in Western China (Lanzhou University), The Ministry of Education of China, Lanzhou 730000, PR China.
| | - Weibo Jie
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China
| | - Liu Bin
- School/Hospital of Stomatology, Lanzhou University, Lanzhou 730000, PR China; Key Laboratory of Dental Maxillofacial Reconstruction and Biological Intelligence Manufacturing, School of Stomatology, Lanzhou University, Lanzhou 730000, PR China.
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Hwang IT, Han DS, Sohn JY, Shin J, Choi JH, Jung CH. Preparation and cesium adsorption behavior of Prussian blue-based polypropylene nonwoven fabric by surfactant-assisted aqueous preirradiation graft polymerization. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Kim G, Lee DS, Eccles H, Kim SM, Cho HU, Park JM. Selective strontium adsorption using synthesized sodium titanate in aqueous solution. RSC Adv 2022; 12:18936-18944. [PMID: 35873321 PMCID: PMC9240817 DOI: 10.1039/d2ra02494b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/14/2022] [Indexed: 11/25/2022] Open
Abstract
Amorphous sodium titanates were synthesized using a mid-temperature sol–gel method for evaluation as selective adsorbents of strontium in the presence of cesium or metal cations (Al3+, Mg2+, Ca2+, and Mn2+) from aqueous solution. Synthesized sodium titanate showed high adsorption capacity and selectivity for strontium. The maximum adsorption capacity of strontium by sodium titanate was 193.93 mg g−1 in aqueous solution containing an initial concentration of 5 mM (438.60 mg L−1) strontium and 5 mM (666.67 mg L−1) cesium, and this sodium titanate removed 99.9% of the strontium and 40.67% of cesium from an aqueous solution that had an initial concentration of 1.14 mM (100 mg L−1) strontium and 0.75 mM (100 mg L−1) cesium. Strontium adsorption by synthesized sodium titanate followed pseudo-second-order kinetics and a generalized Langmuir isotherm model, and reached an adsorption equilibrium within 1 h with high adsorption capacity at equilibrium. Adsorbed strontium onto synthesized sodium titanate showed the behavior of forming a strontium titanate structure with a titanate frame via surface precipitation. Amorphous sodium titanates were synthesized using a mid-temperature sol–gel method for evaluation as selective adsorbents of strontium in the presence of cesium or metal cations (Al3+, Mg2+, Ca2+, and Mn2+) from aqueous solution.![]()
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Affiliation(s)
- Gyuhyeon Kim
- Division of Advanced Nuclear Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea
| | - Dae Sung Lee
- Department of Environmental Engineering, Kyungpook National University 80 Daehak-ro, Buk-gu Daegu 41566 Republic of Korea
| | - Harry Eccles
- School of Computing, Engineering and Physical Sciences, University of Central Lancashire Preston PR1 2HE UK
| | - Su Min Kim
- Department of Marine Environmental Engineering, Gyeongsang National University Tongyeong 53064 Republic of Korea
| | - Hyun Uk Cho
- Department of Marine Environmental Engineering, Gyeongsang National University Tongyeong 53064 Republic of Korea
| | - Jong Moon Park
- Division of Advanced Nuclear Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,School of Environmental Science and Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,Department of Chemical Engineering, Pohang University of Science and Technology Pohang 37673 Republic of Korea.,School of Integrated Technology, Yonsei University (POSTECH-Yonsei Open Campus) Pohang 37673 Republic of Korea
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14
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Lee HK, Choi SJ. Copper ferrocyanide chemically immobilized onto a polyvinylidene fluoride hollow-fibre membrane surface for the removal of aqueous cesium. ENVIRONMENTAL TECHNOLOGY 2022; 43:2241-2251. [PMID: 33393440 DOI: 10.1080/09593330.2021.1871659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
A method of chemically bonding copper ferrocynide (CuFC) to the surface of a PVDF hollow-fibre membrane (PVDF-CuFC) was designed and the resulting PVDF-CuFC was applied to the effective removal of aqueous cesium (Cs). In order to chemically immobilize CuFC on the surface of the PVDF hollow-fibre membrane, carboxyl groups were introduced onto the membrane surface (PVDF-COOH) to peptide bond with amine groups from CuFC. The introduction of the carboxyl group onto the surface of the PVDF hollow-fibre membrane was confirmed by Fourier-transform infrared spectroscopy (FT-IR), while the immobilization of CuFC was confirmed by scanning electron microscopy with energy dispersed spectroscopy, FT-IR, and thermogravimetric analysis. The PVDF-CuFC showed higher Cs adsorption kinetics and adsorption capacity than PVDF-COOH. Moreover, as the initial pH increased, the amount of Cs adsorption by PVDF-CuFC also increased. However, the amount of Cs adsorption at pH 10 was slightly less. The applicability of PVDF-CuFC as a filter type adsorbent for the treatment of a Cs-contaminated water source is demonstrated by continuous filtration experiments.
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Affiliation(s)
- Hyun-Kyu Lee
- Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu, Republic of Korea
| | - Sang-June Choi
- Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu, Republic of Korea
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu, Republic of Korea
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15
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Bae J, Gu GE, Kwon YJ, Lee JU, Hong JY. Functionalization of Tailored Porous Carbon Monolith for Decontamination of Radioactive Substances. Int J Mol Sci 2022; 23:5116. [PMID: 35563507 PMCID: PMC9105448 DOI: 10.3390/ijms23095116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/02/2022] [Accepted: 05/02/2022] [Indexed: 02/01/2023] Open
Abstract
As the control over radioactive species becomes critical for the contemporary human life, the development of functional materials for decontamination of radioactive substances has also become important. In this work, a three-dimensional (3D) porous carbon monolith functionalized with Prussian blue particles was prepared through removal of colloidal silica particles from exfoliated graphene/silica composite precursors. The colloidal silica particles with a narrow size distribution were used to act a role of hard template and provide a sufficient surface area that could accommodate potentially hazardous radioactive substances by adsorption. The unique surface and pore structure of the functionalized porous carbon monolith was examined using electron microscopy and energy-dispersive X-ray analysis (EDS). The effective incorporation of PB nanoparticles was confirmed using diverse instrumentations such as X-ray diffraction (XRD), Fourier-transform infrared (FT-IR), and X-ray photoelectron spectroscopy (XPS). A nitrogen adsorption/desorption study showed that surface area and pore volume increased significantly compared with the starting precursor. Adsorption tests were performed with 133Cs ions to examine adsorption isotherms using both Langmuir and Freundlich isotherms. In addition, adsorption kinetics were also investigated and parameters were calculated. The functionalized porous carbon monolith showed a relatively higher adsorption capacity than that of pristine porous carbon monolith and the bulk PB to most radioactive ions such as 133Cs, 85Rb, 138Ba, 88Sr, 140Ce, and 205Tl. This material can be used for decontamination in expanded application fields.
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Affiliation(s)
- Joonwon Bae
- Department of Applied Chemistry, Dongduk Women’s University, Seoul 02748, Korea;
| | - Gyo Eun Gu
- Center for C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (G.E.G.); (Y.J.K.)
| | - Yeon Ju Kwon
- Center for C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (G.E.G.); (Y.J.K.)
| | - Jea Uk Lee
- Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si 17104, Korea
| | - Jin-Yong Hong
- Center for C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (G.E.G.); (Y.J.K.)
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16
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Huang T, Song D, Zhou L, Tao H, Li A, Zhang SW, Liu LF. Non-thermal plasma irradiated polyaluminum chloride for the heterogeneous adsorption enhancement of Cs + and Sr 2+ in a binary system. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127441. [PMID: 34673396 DOI: 10.1016/j.jhazmat.2021.127441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 10/02/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
The natural ecosystem will continually deteriorate for decades by the leakage of Cs and Sr isotopes. The exploration of the new materials or techniques for the efficient treatment of radioactive wastewater is critically important. In this study, a dielectric barrier discharge (DBD) configuration was constructed to operate the non-thermal plasma (NTP). The NTP was incorporated into the synthesis of polyaluminum chloride (PAC) in two different procedures to intensify the synthesis of PAC (NTP-PAC) and enhance the further removal of Cs and Sr from wastewater. The employment of NTP in two procedures both had significantly changed the physicochemical characteristics of PAC materials, which facilitated the further adsorption application of NTP-PAC on the treatment of Cs+ and Sr2+. Different molecular, morphological, and adsorption characteristics were confirmed to the NTP-PAC materials. The heterogeneous adsorption of the NTP-PAC can be appropriately fitted by both the pseudo-first-order kinetic model and the Elovich model. Both physisorption and chemisorption reaction mechanisms were ensured for the heterogeneous adsorption of the NTP-PAC material towards Cs+ and Sr2+, which guaranteed the excellent adsorption performance of NTP-PAC materials compared to PAC. The electron collisions caused by NTP with alum pulp created highly reactive growth precursors and intensified the nucleation and hydrolysis polymerization of PAC. The employment of NTP explicitly broadens the reaction pathways between PAC and cationic contaminants in the aqueous environment, which expands the application area of PAC materials in environmental sustainability.
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Affiliation(s)
- Tao Huang
- School of Materials Engineering, Changshu Institute of Technology, 215500, China; Suzhou Key Laboratory of Functional Ceramic Materials, Changshu Institute of Technology, Changshu 215500, China; School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
| | - Dongping Song
- School of Materials Engineering, Changshu Institute of Technology, 215500, China
| | - Lulu Zhou
- School of Materials Engineering, Changshu Institute of Technology, 215500, China
| | - Hui Tao
- Chongqing Water Affairs Group Co., Ltd., No. 1, Longjiawan, Yuzhong District, Chongqing 400000, China
| | - Aiyin Li
- School of Materials Engineering, Changshu Institute of Technology, 215500, China
| | - Shu-Wen Zhang
- Nuclear Resources Engineering College, University of South China, 421001, China
| | - Long-Fei Liu
- School of Materials Engineering, Changshu Institute of Technology, 215500, China
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17
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Tang JH, Jin JC, Li WA, Zeng X, Ma W, Li JL, Lv TT, Peng YC, Feng ML, Huang XY. Highly selective cesium(I) capture under acidic conditions by a layered sulfide. Nat Commun 2022; 13:658. [PMID: 35115493 PMCID: PMC8813942 DOI: 10.1038/s41467-022-28217-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 01/11/2022] [Indexed: 12/02/2022] Open
Abstract
Radiocesium remediation is desirable for ecological protection, human health and sustainable development of nuclear energy. Effective capture of Cs+ from acidic solutions is still challenging, mainly due to the low stability of the adsorbing materials and the competitive adsorption of protons. Herein, the rapid and highly selective capture of Cs+ from strongly acidic solutions is achieved by a robust K+-directed layered metal sulfide KInSnS4 (InSnS-1) that exhibits excellent acid and radiation resistance. InSnS-1 possesses high adsorption capacity for Cs+ and can serve as the stationary phase in ion exchange columns to effectively remove Cs+ from neutral and acidic solutions. The adsorption of Cs+ and H3O+ is monitored by single-crystal structure analysis, and thus the underlying mechanism of selective Cs+ capture from acidic solutions is elucidated at the molecular level.
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Affiliation(s)
- Jun-Hao Tang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jian-Ce Jin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wei-An Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xi Zeng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wen Ma
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ji-Long Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Tian-Tian Lv
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Ying-Chen Peng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mei-Ling Feng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
| | - Xiao-Ying Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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18
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Jin K, Wu XQ, Chen YP, Park IH, Li JR, Park J. Rapid Cs + Capture via Multiple Supramolecular Interactions in Anionic Metal-Organic Framework Isomers. Inorg Chem 2022; 61:1918-1927. [PMID: 35044169 DOI: 10.1021/acs.inorgchem.1c03025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal-organic frameworks (MOFs) provide an ideal platform for ion exchange due to their high porosity and structural designability; however, developing MOFs that have the essential characteristics for ion exchange remains a challenge. These crucial features include fast kinetics, selectivity, and stability. We present two anionic isomers, DGIST-2 (2D) and DGIST-3 (3D), comprising distinctly arranged 5-(1,8-naphthalimido)isophthalate ligands and In3+ cations. Interestingly, in protic solvents, DGIST-2 transforms into a hydrolytically stable crystalline phase, DGIST-2'. DGIST-2' and DGIST-3 exhibit rapid Cs+ adsorption kinetics, as well as high Cs+ affinity in the presence of competing cations. The mechanism for rapid and selective sorption is explored based on the results of single-crystal X-ray diffraction analysis of Cs+-incorporated DGIST-3. In Cs+-containing solutions, the loosely incorporated dimethylammonium countercation of the anionic framework is replaced by Cs+, which is held in the hydrophobic cavity by supramolecular ion-ion and cation-π interactions.
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Affiliation(s)
- Kangwoo Jin
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
| | - Xue-Qian Wu
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, P. R. China
| | - Ying-Pin Chen
- NSF's ChemMatCARS, The University of Chicago, Argonne, Illinois 60439, United States
| | - In-Hyeok Park
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, P. R. China
| | - Jinhee Park
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang-daero, Dalseong-gun, Daegu 42988, Republic of Korea
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19
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Gamma radiation-induced polymerization of polyacrylic acid-dolomite composite and applications for removal of cesium, cobalt, and zirconium from aqueous solutions. Appl Radiat Isot 2021; 178:109956. [PMID: 34571457 DOI: 10.1016/j.apradiso.2021.109956] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 08/15/2021] [Accepted: 09/16/2021] [Indexed: 11/23/2022]
Abstract
Gamma-irradiation initiated polymerization was utilized to prepare polyacrylic acid dolomite P(AA/D) nanocomposites. Different analytical techniques have been applied to investigate the structure of the new materials. XRD and TEM revealed the crystalline phase with an average particle size ranging from 2 to 4 nm. The ability of the prepared materials to remove cesium, cobalt, and zirconium ions from aqueous solutions was evaluated. The adsorption capacity of studied nanocomposites has an affinity sequence; Zr4+>Co2+≫Cs+ with values 77.8, 72.4, and 34.9 mg/g respectively. The effect of the interfering species reveals that the rate of adsorption of cesium, cobalt, and zirconium ions decreases with increasing concentrations of the interfering species. The investigation proved that the prepared nanocomposite is suitable material for the removal of the studied metals from aqueous solutions and could be considered as potential material for purification of effluent polluted with these metal ions.
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20
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Tian D, Wu TT, Liu YQ, Li N. Double-Walled Metal-Organic Framework with Regulable Pore Environments for Efficient Removal of Radioactive Cesium Cations. Inorg Chem 2021; 60:12067-12074. [PMID: 34346224 DOI: 10.1021/acs.inorgchem.1c01260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An anion double-walled metal-organic framework [Co2Li4(BTC)3(DMF)(H2O)·(CH3)2N]n (1) based on heterobimetallic Li+ and Co2+ ions was successfully constructed. Utilizing selective destruction and formation of Co-O/Co-N bonds in the metal chains, [Co2Li4(BTC)3(py)(H2O)·(CH3)2N]n (2) and [Co2Li4(BTC)3(pi)(H2O)·(CH3)2N]n (3) with the same skeleton but distinct pore structures can be surprisingly obtained. Additionally, compounds 2 and 3 can be transformed into [Co2Li4(BTC)3(H2O)2·(CH3)2N]n (4) by soaking them in an ethanol solution. This kind of single-crystal-to-single-crystal transformation successfully regulates the pore structure of MOFs and enriches the diversity of the pore wall on the premise of retaining the original framework. Most impressively, compound 1 shows high adsorption capacity for Cs+ cations and is a good candidate to selectively accommodate Cs+ among the common alkali metal ions, which is future identified by single-crystal X-ray diffraction and inductively coupled plasma mass spectrometry (ICP-MS) test. Meanwhile, compound 1 can selectively adsorb methylene blue (MB) and crystal violet (CV) molecules over Rhodamine B (RMB).
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Affiliation(s)
- Dan Tian
- College of Materials Science and Engineering, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Tian-Tian Wu
- College of Materials Science and Engineering, Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yan-Qing Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China
| | - Na Li
- School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China
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21
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Lee Y, Park CW, Kim HJ, Kim SJ, Lee TS, Yang HM. Sulfur-encapsulated zeolite micromotors for the selective removal of cesium from high-salt water with accelerated cleanup times. CHEMOSPHERE 2021; 276:130190. [PMID: 33725622 DOI: 10.1016/j.chemosphere.2021.130190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/23/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
Bubble-propelled sulfur-encapsulated NaX zeolite (S-NaX) micromotors were developed for the selective removal of cesium from high-salt conditions with accelerated cleanup times. NaX was first modified with sulfur to provide additional Lewis acid-base interactions with Cs+ for enhanced Cs+ selectivity, and then Pt was half-deposited on S-NaX for bubble propulsion via the catalytic decomposition of H2O2. The average velocity of the resulting S-NaX/Pt micromotors in 5 wt% H2O2 is 39.7 ± 17.1 μm/s, which is higher than that of a previously reported Cs adsorbent micromotor (35.4 μm/s). The Cs+ ion-exchange kinetics of the S-NaX micromotor is 1.32 times higher than that of the NaX micromotor in a 5 wt% H2O2 solution where the molar ratio of Na+ to Cs+ is 200, even though the sulfur in the S-NaX micromotor causes an adverse effect on the propulsion speed due to the sulfur poisoning effect. Moreover, the S-NaX micromotor in simulated groundwater also exhibited excellent Cs+ removal performance with distribution coefficient (Kd) values at least 3.2 times higher than those of the nonpropelled S-NaX and NaX micromotor, demonstrating the great potential for the treatment of radioactive Cs+-contaminated water.
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Affiliation(s)
- Yeonsoo Lee
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea; Organic and Optoelectronic Materials Laboratory, Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Chan Woo Park
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea
| | - Hyung Ju Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea
| | - Sung-Jun Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea
| | - Taek Seung Lee
- Organic and Optoelectronic Materials Laboratory, Department of Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Hee-Man Yang
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea.
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22
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Zakaria ES, Ali IM, Khalil M, El-Tantawy A, El-Saied FA. Adsorptive characteristics of some metal ions on chitosan/zirconium phosphate/silica decorated graphene oxide. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07766-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Gu GE, Bae J, Park HS, Hong JY. Development of the Functionalized Nanocomposite Materials for Adsorption/Decontamination of Radioactive Pollutants. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2896. [PMID: 34071341 PMCID: PMC8198412 DOI: 10.3390/ma14112896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 11/25/2022]
Abstract
A polymer-based nanofiber membrane with a high specific surface area, high porosity and abundant adsorption sites is demonstrated for selective trapping of radionuclides. The Prussian blue (PB)/poly(methyl methacrylate) (PMMA) nanofiber composites were successfully prepared through a one-step, single-nozzle electrospinning method. Various analytical techniques were used to examine the physical and chemical properties of PB nanoparticles and electrospun nanofibers. It is possible to enhance binding affinity and selectivity to radionuclide targets by incorporation of the PB nanoparticles into the polymer matrix. It is noteworthy that the maximum 133Cs adsorption capacity of hte PB/PMMA nanofiber filter is approximately 28 times higher than that of bulk PB, and the removal efficiency is measured to be 95% at 1 ppm of 133Cs. In addition, adsorption kinetics shows that the PB/PMMA nanofiber has a homogenous surface for adsorption, and all sites on the surface have equal adsorption energies in terms of ion-exchange between cyano groups of the introduced PB nanoparticles and radionuclides.
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Affiliation(s)
- Gyo Eun Gu
- Center for C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea;
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Joonwon Bae
- Department of Applied Chemistry, Dongduk Women’s University, Seoul 02748, Korea;
| | - Ho Seok Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Jin-Yong Hong
- Center for C1 Gas & Carbon Convergent Research, Korea Research Institute of Chemical Technology (KRICT), 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea;
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Korea
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24
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Li T, Xia L. Kinetic and equilibrium studies of Cs-137 sorption on calcium-doped Prussian blue. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07742-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Kwon S, Kim C, Han E, Lee H, Cho HS, Choi M. Relationship between zeolite structure and capture capability for radioactive cesium and strontium. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124419. [PMID: 33162239 DOI: 10.1016/j.jhazmat.2020.124419] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Zeolites are widely used for capturing radioactive Cs+ and Sr2+, but the important structural factors determining their performance have not been clearly understood. To investigate the structure-property relationship, we prepared thirteen zeolites with various structures and Si/Al ratios. Ion-exchange experiments revealed that Cs+ exhibited an enhanced affinity to zeolites with high Si/Al ratios, which could be explained by the dielectric theory. Notably, zeolites containing 8-membered ring (8MR) showed extra-high Cs+ selectivity. Structural analysis using X-ray diffraction proved that Cs+ with an ionic diameter of 3.6 Å was selectively coordinated within 8MR having a cavity diameter of 3.6-4.1 Å. Such unique size-selective Cs+ coordination is analogous to ion complexation by macrocyclic organic ligands (e.g., crown ethers). Divalent Sr2+ showed decreasing affinity to zeolites as the Si/Al ratio increased, because of the increasing average Al-Al distance distribution. Sr2+ exchange exhibited an insignificant dependence on zeolite structures due to its strong hydration, which inhibited close interaction with zeolite frameworks. In terms of kinetics, Sr2+ exchange was significantly slower than Cs+ exchange because of the bulkiness of hydrated Sr2+ ions. Therefore, the micropore channels with large apertures (e.g., 12-membered ring) were beneficial for achieving fast ion-exchange kinetics, especially in the case of Sr2+.
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Affiliation(s)
- Songhyeon Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Chaehoon Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Eunhye Han
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hoin Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hae Sung Cho
- School of Physical Science and Technology, ShanghaiTech, 393 Middle Huaxia Road, Shanghai 201210, China.
| | - Minkee Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
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26
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Kinetic Studies of Cs+ and Sr2+ Ion Exchange Using Clinoptilolite in Static Columns and an Agitated Tubular Reactor (ATR). CHEMENGINEERING 2021. [DOI: 10.3390/chemengineering5010009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Natural clinoptilolite was studied to assess its performance in removing caesium and strontium ions, using both static columns and an agitated tube reactor (ATR) for process intensification. Kinetic breakthrough curves were fitted using the Thomas and Modified Dose Response (MDR) models. In the static columns, the clinoptilolite adsorption capacity (qe) for 200 ppm ion concentrations was found to be ~171 and 16 mg/g for caesium and strontium, respectively, highlighting the poor material ability to exchange strontium. Reducing the concentration of strontium to 100 ppm, however, led to a higher strontium qe of ~48 mg/g (close to the maximum adsorption capacity). Conversely, halving the column residence time to 15 min decreased the qe for 100 ppm strontium solutions to 13–14 mg/g. All the kinetic breakthrough data correlated well with the maximum adsorption capacities found in previous batch studies, where, in particular, the influence of concentration on the slow uptake kinetics of strontium was evidenced. For the ATR studies, two column lengths were investigated (of 25 and 34 cm) with the clinoptilolite embedded directly into the agitator bar. The 34 cm-length system significantly outperformed the static vertical columns, where the adsorption capacity and breakthrough time were enhanced by ~30%, which was assumed to be due to the heightened kinetics from shear mixing. Critically, the increase in performance was achieved with a relative process flow rate over twice that of the static columns.
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27
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Liao YY, Li JR, Zhang B, Sun HY, Ma W, Jin JC, Feng ML, Huang XY. Robust and Flexible Thioantimonate Materials for Cs + Remediation with Distinctive Structural Transformation: A Clear Insight into the Ion-Exchange Mechanism. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5275-5283. [PMID: 33496170 DOI: 10.1021/acsami.0c21756] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
It is imperative yet challenging to efficiently sequester the 137Cs+ ion from aqueous solutions because of its highly environmental mobility and extremely high radiotoxicity. The systematical clarification for underlying mechanism of Cs+ removal and elution at the molecular level is rare. Here, efficient Cs+ capture is achieved by a thioantimonate [MeNH3]3Sb9S15 (FJSM-SbS) with high capacity, fast kinetics, wide pH durability, excellent β and γ radiation resistances, and facile elution. The Cs+ removal is not significantly impacted by coexisting Na+, K+, Ca2+, Mg2+, and Sr2+ ions which is beneficial to the remediation of Cs+-contaminated real waters. Importantly, the mechanism is directly illuminated by revealing an unprecedented single-crystal to single-crystal structural transformation upon Cs+ uptake and elution processes. The superior Cs+ removal results from an unusual synergy from strong affinity of soft S2- with Cs+, easily exchangeable [MeNH3]+ cations, and the flexible and robust framework of FJSM-SbS with open windows as trappers.
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Affiliation(s)
- Yi-Yu Liao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian-Rong Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Bo Zhang
- College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, P.R. China
| | - Hai-Yan Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Wen Ma
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian-Ce Jin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Mei-Ling Feng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China
| | - Xiao-Ying Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Fujian Province Joint Innovation Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China
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Efficient removal of U(VI) from aqueous solutions via an activated 3D framework carbon. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-020-07541-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Prajitno MY, Tangparitkul S, Zhang H, Harbottle D, Hunter TN. The effect of cationic surfactants on improving natural clinoptilolite for the flotation of cesium. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123567. [PMID: 32755798 DOI: 10.1016/j.jhazmat.2020.123567] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/30/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Flotation using cationic surfactants has been investigated as a rapid separation technique to dewater clinoptilolite ion exchange resins, for the decontamination of radioactive cesium ions (Cs+) from nuclear waste effluent. Initial kinetic and equilibrium adsorption studies of cesium, suggested the large surface area to volume ratio of the fine zeolite contributed to fast adsorption kinetics and high capacities (qc = 158.3 mg/g). Adsorption of ethylhexadecyldimethylammonium bromide (EHDa-Br) and cetylpyridinium chloride (CPC) surfactant collectors onto both clean and 5 ppm Cs+ contaminated clinoptilolite was then measured, where distribution coefficients (Kd) as high as 10,000 mL/g were evident with moderate concentrations CPC. Measurements of particle sizes confirmed that adsorption of surfactant monolayers did not lead to significant aggregation of the clinoptilolite, while < 8% of the 5 ppm contaminated cesium was remobilised. Importantly for flotation, both the recovery efficiency and dewatering ratios were measured across various surfactant concentrations. Optimum conditions were found with 0.5 mM of CPC and addition of 30 μL of MIBC frother, giving a recovery of ∼90% and a water reduction ratio > 4, highlighting the great viability of flotation to separate and concentrate the contaminated powder in the froth phase.
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Affiliation(s)
| | - Suparit Tangparitkul
- Department of Mining and Petroleum Engineering, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Huagui Zhang
- College of Chemistry and Materials Science, Fujian Province Key Laboratory of Polymer Science, Fujian Normal University, Fuzhou, 350007, China
| | - David Harbottle
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Timothy N Hunter
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK.
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Chen X, Li Y, Zhu L, Ke Y, Wang X, Yang Y. High-efficiency continuous enrichment of cesium ions using CuFC composite microspheres: dynamic adsorption and mechanism analysis. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07378-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Zheng W, Feng S, Feng S, Ni Z, Shao C. A novel S-doped PB/GO nanocomposite for efficient adsorption and removal of cesium ions. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07387-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Tachibana Y, Kalak T, Nogami M, Tanaka M. Combined use of tannic acid-type organic composite adsorbents and ozone for simultaneous removal of various kinds of radionuclides in river water. WATER RESEARCH 2020; 182:116032. [PMID: 32574820 DOI: 10.1016/j.watres.2020.116032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 05/25/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Tannic acid-type organic composite adsorbents (PA316TAS, AR-01TAS, PYRTAS, WA10TAS, WA20TAS, and WA30TAS), combined with hydrolyzed and sulfonated tannic acid (TAS) and porous-type strongly basic anion-exchange resin (PA316), benzimidazole-type anion-exchange resin embedded in high-porous silica beads (AR-01), pyridine-type anion-exchange resin (PYR), acrylic-type weakly basic anion-exchange resin (WA10), or styrene-type weakly basic anion-exchange resins (WA20 and WA30) for simultaneous removal of various kinds of radionuclides in river water were successfully synthesized. The adsorption behavior of twelve kinds of simulated radionuclides (Mn, Co, Sr, Y, Ru, Rh, Sb, Te, Cs, Ba, Eu, and I (I- and IO3-)) on these composite adsorbents has been studied in real river water at room temperature. PA316TAS adsorbents showed much higher distribution coefficients (Kd) for all metal ions. TAS structure has more selective adsorption ability for Mn, Co, Sr, Y, Cs, Ba, Eu, and IO3-. On the other hand, Y, Ru, Rh, Sb, Te, Eu, I (I- and IO3-) were adsorbed on both PA316 and TAS structures. To evaluate the validity of these mechanistic expectations, the respective chemical adsorption behaviors of Mn, Co, Sr, etc. and PA316TAS adsorbent were examined in river water ranging in temperature from 278 to 333 K. As was expected, one adsorption mechanism for Mn, Co, Sr, Cs, and Ba systems and two types of adsorption mechanisms for Y, Ru, Rh, Sb, Te, Eu, I (I- and IO3-) systems were observed. On the other hand, the precipitation of Mn, Co, Y, Ru, Rh, Te, and Eu was formed by ozonation for river water, that is, ozone can transform Mn, Co, Y, Ru, Rh, Te, and Eu ions into the insoluble precipitates. Hence, one straight line for Sr, Cs, Ba systems and two types of straight lines for Sb, I (I- and IO3-) systems were obtained in river water treated with ozone. The chromatography experiments of Cs, Sr, I (I- and IO3-) were carried out to calculate their maximum adsorption capacities. The obtained maximum adsorption capacities of Cs, Sr, and I- mixed with IO3- were 1.7 × 10-4 (Cs), 1.8 × 10-3 (Cs/O3), 7.8 × 10-5 (Sr), 5.6 × 10-4 (Sr/O3), 5.4 × 10-2 (I- and IO3-), 3.1 × 10-2 (I- and IO3-/O3) mol/g - PA316TAS. It was discovered that the maximum adsorption capacities of I- and IO3- for the composite adsorbent is unprecedented high and the capacity become much greater than an order of magnitude, compared with those of previous reports. This phenomenon suggests the formation of electron-donor-acceptor (EDA) complexes or pseudo EDA complex. Based on these results, it was concluded that the combined use of tannic acid-type organic composite adsorbents and ozone made it possible to remove simultaneously and effectively various kinds of radionuclides in river water in the wide pH and temperature ranges.
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Affiliation(s)
- Yu Tachibana
- Department of Nuclear System Safety Engineering, Graduate School of Engineering, Nagaoka University of Technology, 1603-1, Kamitomioka-machi, Nagaoka-shi, Niigata, 940-2188, Japan.
| | - Tomasz Kalak
- Department of Industrial Products and Packaging Quality, Institute of Quality Science, Poznań University of Economics and Business, Niepodległości 10, Poznań, 61-875, Poland
| | - Masanobu Nogami
- Department of Electric and Electronic Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka-shi, Osaka, 577-8502, Japan
| | - Masahiro Tanaka
- National Institute for Fusion Science, 322-6, Oroshi-cho, Toki-shi, Gifu, 509-5292, Japan
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Chen S, Hu J, Guo Y, Deng T. Facile Synthesis of Porous Polymer Using Biomass Polyphenol Source for Highly Efficient Separation of Cs + from Aqueous Solution. Sci Rep 2020; 10:8221. [PMID: 32427956 PMCID: PMC7237466 DOI: 10.1038/s41598-020-65099-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/23/2020] [Indexed: 11/09/2022] Open
Abstract
In this work, a series of polyphenol porous polymers were derived from biomass polyphenols via a facile azo-coupling method. The structure and morphologies of the polymer were characterized by BET, TEM, SEM, XRD, TGA and FT-IR techniques. Batch experiments demonstrated their potentialities for adsorptive separation of Cs+ from aqueous solution. Among them, porous polymers prepared with gallic acid as starting material (GAPP) could adsorb Cs+ at wide pH value range effectively, and the optimal adsorption capacity was up to 163.6 mg/g, placing it at top material for Cs+ adsorption. GAPP exhibited significantly high adsorption performance toward Cs+ compared to Na+ and K+, making it possible in selective removal of Cs+ from ground water in presence of co-existing competitive ions. Moreover, the Cs-laden GAPP could be facilely eluted and reused in consecutive adsorption-desorption processes. As a result, we hope this work could provide ideas about the potential utilization of biomass polyphenol in environmental remediation.
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Affiliation(s)
- Shangqing Chen
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China
| | - Jiayin Hu
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China.
| | - Yafei Guo
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China
| | - Tianlong Deng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, P.R. China.
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34
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Rapid enrichment of cesium ions in aqueous solution by copper ferrocyanide powder. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2337-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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35
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Cesium separation from radioactive waste by extraction and adsorption based on crown ethers and calixarenes. NUCLEAR ENGINEERING AND TECHNOLOGY 2020. [DOI: 10.1016/j.net.2019.08.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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36
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Kim TY, Hong JE, Park HM, Lee UJ, Lee SY. Decontamination of low-level contaminated water from radioactive cesium and cobalt using microalgae. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-019-07008-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Radioanalysis of ultra-low level radionuclides for environmental tracer studies and decommissioning of nuclear facilities. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06908-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Kim H, Wi H, Kang S, Yoon S, Bae S, Hwang Y. Prussian blue immobilized cellulosic filter for the removal of aqueous cesium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:779-788. [PMID: 30921711 DOI: 10.1016/j.scitotenv.2019.03.234] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 02/26/2019] [Accepted: 03/15/2019] [Indexed: 06/09/2023]
Abstract
Cesium is a typical radioisotope that has a long half-life and is dangerous and can be emitted in the event of a nuclear accident. Prussian blue (PB), which is known to effectively adsorb cesium, is difficult to separate when it is dissolved in an aqueous system. In this study, PB was immobilized on a filter type support media, cellulose filter (CF), for use as a selective material for cesium adsorption. The commercially available CF was functionalized by the addition of acrylic acid (AA) (i.e., CF-AA) to enhance the PB immobilization, which increased both PB loading and binding strength. The AA functionalization changed the major functional groups from hydroxyl to carboxylic, as confirmed by Fourier-transform infrared spectroscopy. As a result of the surface modification, the PB immobilization increased 1.5 times and reduced detachment of PB during washing. The prepared adsorbent, CF-AA-PB, was tested for its cesium adsorption capability. Cesium adsorption equilibrated within 3 h, and the maximum cesium adsorption capacity was 16.66 mg/g. The observed decrease in the solution pH during cesium adsorption inhibited the overall cesium uptake; however, this was minimized by buffering. The prepared CF-AA-PB was used as a filter material and its potential use as a countermeasure for removing radioactive cesium from a contaminated water stream was demonstrated.
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Affiliation(s)
- Hyowon Kim
- Department of Environmental Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Hyobin Wi
- Department of Materials and Environmental Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sungwon Kang
- Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, 283 Goyang-daero, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10223, Republic of Korea
| | - Sunho Yoon
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Sungjun Bae
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Yuhoon Hwang
- Department of Environmental Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea.
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39
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Lee I, Park CW, Yoon SS, Yang HM. Facile synthesis of copper ferrocyanide-embedded magnetic hydrogel beads for the enhanced removal of cesium from water. CHEMOSPHERE 2019; 224:776-785. [PMID: 30851529 DOI: 10.1016/j.chemosphere.2019.02.199] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/23/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
A simple one-step approach for fabricating copper ferrocyanide-embedded magnetic hydrogel beads (CuFC-MHBs) was designed, and the beads were applied to the effective removal of cesium (Cs) and then magnetically separated from water. The polyvinyl alcohol (PVA)-coated CuFC (PVA-CuFC) was first synthesized using PVA as a stabilizer and subsequently embedded in magnetic hydrogel beads made of a cross-linked network between the PVA and magnetic iron oxide nanoparticles that was prepared through the simple dropwise addition of a mixed solution of PVA-CuFC, PVA and iron salt into an ammonium hydroxide solution. The synthesis and chemical immobilization of the PVA-CuFC in the magnetic beads were simple, facile and achieved in one pot, and the process is scalable and convenient for the large-scale treatment of Cs-contaminated water. The resulting CuFC-MHBs showed effective Cs removal performance with a high Kd value of 66,780 mL/g and excellent structural stability without the release of CuFC for at least 1 month and could be effectively separated from water by an external magnet. Moreover, the CuFC-MHBs selectively adsorbed Cs with high Kd values in the presence of various competing ions, such as in simulated groundwater (24,500 mL/g) and seawater (8290 mL/g), and maintained their Cs absorption ability in a wide pH range from 3 to 11. The convenient fabrication method and effective removal of Cs from various aqueous media demonstrated that the CuFC-MHBs have great potential for practical application in the decontamination of Cs-contaminated water sources caused by nuclear accidents and radioactive liquid waste in various nuclear industry fields.
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Affiliation(s)
- Inae Lee
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, South Korea; Dept. of Chemistry, Sungkyunkwan University, Suwon, Kyeonggi-do, South Korea
| | - Chan Woo Park
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, South Korea
| | - Seung Soo Yoon
- Dept. of Chemistry, Sungkyunkwan University, Suwon, Kyeonggi-do, South Korea.
| | - Hee-Man Yang
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, South Korea.
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40
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Xie Y, Chen C, Ren X, Wang X, Wang H, Wang X. Emerging natural and tailored materials for uranium-contaminated water treatment and environmental remediation. PROGRESS IN MATERIALS SCIENCE 2019; 103:180-234. [DOI: https:/doi.org/10.1016/j.pmatsci.2019.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
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41
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Rauwel P, Rauwel E. Towards the Extraction of Radioactive Cesium-137 from Water via Graphene/CNT and Nanostructured Prussian Blue Hybrid Nanocomposites: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E682. [PMID: 31052518 PMCID: PMC6566935 DOI: 10.3390/nano9050682] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 11/16/2022]
Abstract
Cesium is a radioactive fission product generated in nuclear power plants and is disposed of as liquid waste. The recent catastrophe at the Fukushima Daiichi nuclear plant in Japan has increased the 137Cs and 134Cs concentrations in air, soil and water to lethal levels. 137Cs has a half-life of 30.4 years, while the half-life of 134Cs is around two years, therefore the formers' detrimental effects linger for a longer period. In addition, cesium is easily transported through water bodies making water contamination an urgent issue to address. Presently, efficient water remediation methods towards the extraction of 137Cs are being studied. Prussian blue (PB) and its analogs have shown very high efficiencies in the capture of 137Cs+ ions. In addition, combining them with magnetic nanoparticles such as Fe3O4 allows their recovery via magnetic extraction once exhausted. Graphene and carbon nanotubes (CNT) are the new generation carbon allotropes that possess high specific surface areas. Moreover, the possibility to functionalize them with organic or inorganic materials opens new avenues in water treatment. The combination of PB-CNT/Graphene has shown enhanced 137Cs+ extraction and their possible applications as membranes can be envisaged. This review will survey these nanocomposites, their efficiency in 137Cs+ extraction, their possible toxicity, and prospects in large-scale water remediation and succinctly survey other new developments in 137Cs+ extraction.
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Affiliation(s)
- Protima Rauwel
- Institute of Technology, Estonian University of Life Sciences, Kreutzwaldi 56/1, 51014 Tartu, Estonia.
| | - Erwan Rauwel
- Institute of Technology, Estonian University of Life Sciences, Kreutzwaldi 56/1, 51014 Tartu, Estonia.
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42
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Ding S, Zhang L, Li Y, Hou LA. Fabrication of a novel polyvinylidene fluoride membrane via binding SiO 2 nanoparticles and a copper ferrocyanide layer onto a membrane surface for selective removal of cesium. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:292-299. [PMID: 30685717 DOI: 10.1016/j.jhazmat.2019.01.065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/09/2018] [Accepted: 01/18/2019] [Indexed: 05/27/2023]
Abstract
A novel polyvinylidene fluoride (PVDF) membrane was fabricated through chemical binding SiO2 nanoparticles (NPs) and copper ferrocyanide (CuFC) layers onto a membrane surface simultaneously to improve the removal efficiency of Cs. The results indicated that the SiO2 NPs were strongly deposited onto the membrane surface, and the CuFC layer was firmly attached on the surface of SiO2 NPs and the membrane. CuFC/SiO2/PVDF membrane remained stable after the acidic solution and sonication stress treatments. CuFC/SiO2/PVDF membrane showed good permeate flux and high selectivity on removal of Cs, and adsorbing capacity reached 1440.4 mg m-2 for Cs. The membrane remained high rejections of Cs in a wide pH, and could be regenerated well by H2O2 and N2H4. Selective adsorption and electrostatic interaction govern the rejection of Cs. The coexisting cations decreased the rejection of Cs mainly in accordance to the order of cations' hydration radii as K+ > Na+ > Ca2+ > Mg2+. In addition, the rejection of Cs could still reach 99.4% in 8 h in the filtration of humic acid solution and natural surface water. The membrane could removal of Cs from water effectively by directly rapid filtration, suggesting it can be applied as promising technology for radioactive wastewater treatment.
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Affiliation(s)
- Shiyuan Ding
- Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, People's Republic of China.
| | - Lilan Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yang Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Li-An Hou
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China; Xi' an High-Tech Institute, Xi'an 710025, People's Republic of China.
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Cabaud C, Barré Y, De Windt L, Gill S, Dooryhée E, Moloney MP, Massoni N, Grandjean A. Removing Cs within a continuous flow set-up by an ionic exchanger material transformable into a final waste form. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00040-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Li CM, Wang XP, Jiao ZH, Zhang YS, Yin XB, Cui XM, Wei YZ. Functionalized Porous Silica-Based Nano/Micro Particles for Environmental Remediation of Hazard Ions. NANOMATERIALS 2019; 9:nano9020247. [PMID: 30759816 PMCID: PMC6409687 DOI: 10.3390/nano9020247] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 11/21/2022]
Abstract
The adsorption and separation of hazard metal ions, radioactive nuclides, or minor actinides from wastewater and high-level radioactive waste liquids using functional silica-based nano/micro-particles modified with various inorganic materials or organic groups, has attracted significant attention since the discovery of ordered mesoporous silica-based substrates. Focusing on inorganic and organic modified materials, the synthesis methods and sorption performances for specific ions in aqueous solutions are summarized in this review. Three modification methods for silica-based particles, the direct synthesis method, wetness impregnation method, and layer-by-layer (LBL) deposition, are usually adopted to load inorganic material onto silica-based particles, while the wetness impregnation method is currently used for the preparation of functional silica-based particles modified with organic groups. Generally, the specific synthesis method is employed based on the properties of the loading materials and the silicon-based substrate. Adsorption of specific toxic ions onto modified silica-based particles depends on the properties of the loaded material. The silicon matrix only changes the thermodynamic and mechanical properties of the material, such as the abrasive resistance, dispersibility, and radiation resistance. In this paper, inorganic loads, such as metal phosphates, molybdophosphate, titanate-based materials, and hydrotalcite, in addition to organic loads, such as 1,3-[(2,4-diethylheptylethoxy)oxy]-2,4-crown-6-Calix{4}arene (Calix {4}) arene-R14 and functional 2,6-bis-(5,6-dialkyl-1,2,4-triazin-3-yl)-pyridines(BTP) are reviewed. More specifically, we emphasize on the synthesis methods of such materials, their structures in relation to their capacities, their selectivities for trapping specific ions from either single or multi-component aqueous solutions, and the possible retention mechanisms. Potential candidates for remediation uses are selected based on their sorption capacities and distribution coefficients for target cations and the pH window for an optimum cation capture.
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Affiliation(s)
- Chun Min Li
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Xin Peng Wang
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Zi Hao Jiao
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Yu Sheng Zhang
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
| | - Xiang Biao Yin
- Laboratory for Advanced Nuclear Energy, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
| | - Xue Min Cui
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
| | - Yue Zhou Wei
- School of Resources, Environment and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning 530004, China.
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Wang K, Ma H, Pu S, Yan C, Wang M, Yu J, Wang X, Chu W, Zinchenko A. Hybrid porous magnetic bentonite-chitosan beads for selective removal of radioactive cesium in water. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:160-169. [PMID: 30236936 DOI: 10.1016/j.jhazmat.2018.08.067] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 08/19/2018] [Accepted: 08/20/2018] [Indexed: 05/27/2023]
Abstract
Easy-to-obtain magnetic bentonite-chitosan hybrid beads (Bn-CTS) were prepared by immobilizing bentonite within a porous structure of chitosan beads to achieve a hybrid adsorption effect for the removal of cesium ion (Cs+) from water. The hybrid adsorbent, which had a porous structure and abundant binding sites contributed by both chitosan and bentonite, ensured superb adsorption characteristics. The paramagnetic character of the beads enabled their facile separation for recycling. The chitosan/bentonite ratio, pH and contact time were optimized to achieve the optimal Cs+ efficiency, and the adsorption kinetics and isotherms were thoroughly discussed. The adsorption kinetics obeyed the pseudo-second-order model, and the best fitted equation for equilibrium data was the Langmuir isotherm model. The maximum adsorption capacity of the bentonite-chitosan beads was 57.1 mg g-1. The adsorbent had excellent selectivity towards Cs+ adsorption in the presence of abundant cations (Li+, Na+, K+ and Mg2+). The adsorbent was able to be recycled by treating the beads with 0.1 mol L-1 of MgCl2 to quantitatively desorb Cs+ from the beads. Overall, the magnetic bentonite-chitosan beads can be used as a highly efficient adsorbent for radioactive waste disposal and management.
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Affiliation(s)
- Kexin Wang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Hui Ma
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej, 401871 Frederiksberg, Denmark
| | - Shengyan Pu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; Department of Civil and Environment Engineering, The Hong Kong Polytechnic University, Hong Kong, PR China.
| | - Chun Yan
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Miaoting Wang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Jing Yu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Xiaoke Wang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China
| | - Wei Chu
- Department of Civil and Environment Engineering, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Anatoly Zinchenko
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1#, Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, PR China; Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan.
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Hu J, Chen S, Zhang N, Wang Z, Shi J, Guo Y, Deng T. Porous composite CMC–KCuFC–PEG spheres for efficient cesium removal from wastewater. NEW J CHEM 2019. [DOI: 10.1039/c9nj01697j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly stable porous composite CMC–KCuFC–PEG was used for Cs+ recovery from wastewater, and showed excellent adsorption performance.
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Affiliation(s)
- Jiayin Hu
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Shangqing Chen
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Ningluo Zhang
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Zheng Wang
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Jian Shi
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Yafei Guo
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
| | - Tianlong Deng
- Tianjin Key Laboratory of Marine Resources and Chemistry
- College of Chemical Engineering and Materials Science
- Tianjin University of Science and Technology
- Tianjin
- China
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Fang ZW, Liu HJ, Wang ZH, Wen D, Long XL. Effect of activated carbon modified with oxalic acid on the production of IPA from MX catalyzed by H3PW12O40@carbon and cobalt. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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48
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UV pre-activation/thermal initiated grafting of caffeic acid on PVDF for preparation of adsorptive membranes for cesium. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.09.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Magnetic K2Zn3[Fe(CN)6]2 @ Ni-P composites for highly selective cesium separation. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Eco-friendly one-pot synthesis of Prussian blue-embedded magnetic hydrogel beads for the removal of cesium from water. Sci Rep 2018; 8:11476. [PMID: 30065289 PMCID: PMC6068103 DOI: 10.1038/s41598-018-29767-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 07/18/2018] [Indexed: 11/30/2022] Open
Abstract
A simple one-step approach to fabricating Prussian blue-embedded magnetic hydrogel beads (PB-MHBs) was fabricated for the effective magnetic removal of radioactive cesium (137Cs) from water. Through the simple dropwise addition of a mixed aqueous solution of iron salts, commercial PB and polyvinyl alcohol (PVA) to an ammonium hydroxide (NH4OH) solution, the formation of hydrogel beads and the encapsulation of PB in beads were achieved in one pot through the gelation of PVA with in situ-formed iron oxide nanoparticles as the cross-linker. The obtained PB-MHBs, with 43.77 weight % of PB, were stable without releasing PB for up to 2 weeks and could be effectively separated from aqueous solutions by an external magnetic field, which is convenient for the large-scale treatment of Cs-contaminated water. Detailed Cs adsorption studies revealed that the adsorption isotherms and kinetics could be effectively described by the Langmuir isotherm model and the pseudo-second-order model, respectively. Most importantly, the PB-MHBs exhibited excellent selectivity for 137Cs in 137Cs-contaminated simulated groundwater (55 Bq/g) with a high removal efficiency (>99.5%), and the effective removal of 137Cs from real seawater by these PB-MHBs demonstrated the excellent potential of this material for practical application in the decontamination of 137Cs-contaminated seawater.
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