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Yildirim A, Ascioglu S, Kocer MB, Ozyilmaz E, Yilmaz M. Design of a novel fluorescent metal-organic framework (UiO-66-NG) for the detection of boric acid in aqueous medium and bioimaging in a living plant system. Talanta 2024; 268:125285. [PMID: 37832455 DOI: 10.1016/j.talanta.2023.125285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/10/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
UiO-66-NH2 material is a variant of Zr-based MOF most widely used for various applications, exhibiting unprecedented excellent hydrothermal and physicochemical stability. In this study, after UiO-66-NH2 reacted with chlorosulfonyl isocyanate, the fluorescent UiO-66-NG probe was prepared by interacting with the N-methylglucamine molecule. The structure of the prepared probe was confirmed by characterizing them with techniques such as FTIR, SEM, and XRD. The sensing properties of this prepared probe against different anions and cations were investigated and it was understood that it showed sensitive selectivity only for H3BO3. The H3BO3 detection limit (LOD) of the UiO-66-NG probe was determined as 1.81 μM. Boric acid was determined in real samples by using tap water, lake water, and river water. Fluorescence imaging was performed using the plant Lepidium sativum for the detection of boric acid in aqueous medium and for bio-imaging in a living plant system. These results show that the prepared UiO-66-NG can be used successfully in the determination of H3BO3 in living plants.
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Affiliation(s)
- Ayse Yildirim
- Selcuk University, Department of Chemistry, 42075, Konya, Turkey.
| | - Sebahat Ascioglu
- Selcuk University, Department of Biochemistry, 42075, Konya, Turkey
| | | | - Elif Ozyilmaz
- Selcuk University, Department of Biochemistry, 42075, Konya, Turkey
| | - Mustafa Yilmaz
- Selcuk University, Department of Chemistry, 42075, Konya, Turkey.
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2
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Lou XY, Yohai L, Boada R, Resina-Gallego M, Han D, Valiente M. Effective Removal of Boron from Aqueous Solutions by Inorganic Adsorbents: A Review. Molecules 2023; 29:59. [PMID: 38202645 PMCID: PMC10780067 DOI: 10.3390/molecules29010059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Increasing levels of boron in water exceeding acceptable thresholds have triggered concerns regarding environmental pollution and adverse health effects. In response, significant efforts are being made to develop new adsorbents for the removal of boron from contaminated water. Among the various materials proposed, inorganic adsorbents have emerged as promising materials due to their chemical, thermal, and mechanical stability. This review aims to comprehensively examine recent advances made in the development of inorganic adsorbents for the efficient removal of boron from water. Firstly, the adsorption performance of the most used adsorbents, such as magnesium, iron, aluminum, and individual and mixed oxides, are summarized. Subsequently, diverse functionalization methods aimed at enhancing boron adsorption capacity and selectivity are carefully analyzed. Lastly, challenges and future perspectives in this field are highlighted to guide the development of innovative high-performance adsorbents and adsorption systems, ultimately leading to a reduction in boron pollution.
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Affiliation(s)
- Xiang-Yang Lou
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
| | - Lucia Yohai
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Universidad Nacional de Mar del Plata-Consejo Nacional de Investigaciones Científicas y Técnicas (UNMdP-CONICET), Mar del Plata B7608FDQ, Argentina
| | - Roberto Boada
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
| | - Montserrat Resina-Gallego
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
| | - Dong Han
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
| | - Manuel Valiente
- Grup de Tècniques de Separació en Química (GTS-UAB Research Group), Department of Chemistry, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; (X.-Y.L.); (L.Y.); (M.R.-G.); (D.H.); (M.V.)
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3
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Raval P, Thomas N, Hamdouna L, Delevoye L, Lafon O, Manjunatha Reddy GN. Boron Adsorption Kinetics of Microcrystalline Cellulose and Polymer Resin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5384-5395. [PMID: 37022335 DOI: 10.1021/acs.langmuir.3c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Tailoring boron-polysaccharide interactions is an important strategy for developing functional soft materials such as hydrogels, fire retardants, and sorbents for environmental remediation, for example, using lignocellulosic biomass. For such applications to be realized, it is paramount to understand the adsorption kinetics of borate anions on cellulose and their local structures. Here, the kinetic aspects of boron adsorption by microcrystalline cellulose, lignin, and polymeric resin are investigated and compared. Borate anions interact with the vicinal diols in the glucopyranoside moieties of cellulose to yield chemisorbed boron chelate complexes. In contrast to cellulose, technical lignin contains fewer cis-vicinal diols, and it does not have a tendency to form such chelate complexes upon treatment with the aqueous boric acid solution. The formation kinetics and stability of these chelate complexes strongly depend on nanoscale structures, as well as reaction conditions such as pH and concentration of the sorbate and sorbent. Specifically, insights into the distinct boron adsorption sites were obtained by solid-state one-dimensional (1D) 11B magic-angle spinning NMR and the local structures and intermolecular interactions in the vicinities of boron chelate complexes are elucidated by analyzing two-dimensional (2D) 1H-13C and 11B-1H heteronuclear correlation NMR spectra. The total boron adsorption capacity of cellulose is estimated to be in the 1.3-3.0 mg range per gram of sorbent, which is lower than the boron adsorption capacity of a polystyrene-based resin, ∼17.2 mg of boron per gram of Amberlite IRA 743. Our study demonstrates that the local backbone and side chain flexibility as well as the structures of polyol groups play a significant role in determining the kinetic and thermodynamic stability of chelate complexes, yielding to different boron adsorption capabilities of lignocellulosic polymers.
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Affiliation(s)
- Parth Raval
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Neethu Thomas
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Lama Hamdouna
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Laurent Delevoye
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Olivier Lafon
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
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Preparation of Layered Double Hydroxides Intercalated by Tartaric Acid Anion and Its Application in Boron Adsorption. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Lu M, Shao L, Yang Y, Li P. Simultaneous Recovery of Lithium and Boron from Brine by the Collaborative Adsorption of Lithium-Ion Sieves and Boron Chelating Resins. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Mengxiang Lu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
- National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai200237, China
| | - Liqiang Shao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
- National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai200237, China
| | - Ying Yang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
- National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai200237, China
| | - Ping Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai200237, China
- National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai200237, China
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6
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Altınbaş B, Orak C, Ökten HE, Yüksel A. Novel Hybrid Adsorption-Electrodialysis (AdED) System for Removal of Boron from Geothermal Brine. ACS OMEGA 2022; 7:45422-45431. [PMID: 36530257 PMCID: PMC9753525 DOI: 10.1021/acsomega.2c06046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
A novel hybrid adsorption-electrodialysis (AdED) system to remove environmentally harmful boron from geothermal brine was designed and effective operating parameters such as pH, voltage, and flow rate were studied. A cellulose-based adsorbent was synthesized from glycidyl methacrylate (GMA) grafted cellulose and modified with a boron selective n-methyl-d-glucamine (NMDG) group and characterized with SEM-EDX, FT-IR, and TGA analyses. Batch adsorption studies revealed that cellulose-based adsorbent showed a remarkable boron removal capacity (19.29 mg/g), a wide stable operating pH range (2-10), and an adsorption process that followed the Freundlich isotherm (R 2 = 0.95) and pseudo-second-order kinetics (R 2 = 0.99). In the hybrid AdED system, the optimum operating parameters for boron removal were found to be a pH of 10, a voltage of 10 V, a flow rate of 100 mL/min, and an adsorbent dosage of 4 g/L. The presence of the adsorbent in the hybrid system increased boron removal from real geothermal brine (containing 199 ppm boron) from 7.2% to 73.3%. The results indicate that the designed AdED system performs better than bare electrodialysis for boron removal from ion-rich real geothermal brine while utilizing environmentally friendly cellulose-based adsorbent.
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Affiliation(s)
- Bekir
Fırat Altınbaş
- Department
of Chemical Engineering, Izmir Institute
of Technology, Urla35430, Izmir, Turkey
| | - Ceren Orak
- Department
of Chemical Engineering, Izmir Institute
of Technology, Urla35430, Izmir, Turkey
| | - Hatice Eser Ökten
- Department
of Environmental Engineering, Izmir Institute
of Technology, Urla35430, Izmir, Turkey
| | - Aslı Yüksel
- Department
of Chemical Engineering, Izmir Institute
of Technology, Urla35430, Izmir, Turkey
- Geothermal
Energy Research and Application Center, Izmir Institute of Technology, Urla35430, Izmir, Turkey
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7
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Pan T, Li G, Li R, Cui X, Zhang W. Selective Removal of Boron from Aqueous Solutions Using ECH@NGM Aerogels with Excellent Hydrophilic and Mechanical Properties: Performance and Response Surface Methodology Analysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14879-14890. [PMID: 36399773 DOI: 10.1021/acs.langmuir.2c02566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The remediation of environmental boron contamination has received extensive research attention. The adsorbent ECH@NGM aerogel with high hydrophilic and mechanical properties was synthesized to remove boron. The ECH@NGM aerogel had a high adsorption capacity of 81.11 mg/g, which was 14.50% higher than that of commercial boron-selective resin Amberlite IRA743. The Freundlich model and pseudo-second-order model described the adsorption behavior well. In addition, the response surface methodology (RSM) could predict the experimental outcomes and optimize the reaction conditions, and X-ray photoelectron spectroscopy (XPS) and control tests were utilized to investigate probable adsorption mechanisms. These data showed that the B ← N coordination bond was the primary adsorption force. The adsorbent had good resistance to interference from coexisting salts, high reusability, good adsorption performance even after five reuse cycles, and a high desorption rate in a relatively short time. The adsorption performance in real brines could be maintained at 80%. Therefore, this work not only provided ECH@NGM aerogels for the removal of boron from brine but also elucidated the main adsorption processes between N-containing adsorbents and boron, facilitating the design of future adsorbents for boron removal.
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Affiliation(s)
- Tongtong Pan
- College of Chemical Engineering, Qinghai University, Xining810016, China
| | - Gan Li
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing100029, China
| | - Rujie Li
- College of Chemical Engineering, Qinghai University, Xining810016, China
| | - Xiangmei Cui
- College of Chemical Engineering, Qinghai University, Xining810016, China
| | - Weidong Zhang
- College of Chemical Engineering, Qinghai University, Xining810016, China
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Song T, Luo Q, Gao F, Zhao B, Hao X, Liu Z. Adsorption and electro-assisted method removal of boron in aqueous solution by nickel hydroxide. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.11.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Scurti S, Dattilo S, Gintsburg D, Vigliotti L, Winkler A, Carroccio SC, Caretti D. Superparamagnetic Iron Oxide Nanoparticle Nanodevices Based on Fe 3O 4 Coated by Megluminic Ligands for the Adsorption of Metal Anions from Water. ACS OMEGA 2022; 7:10775-10788. [PMID: 35382325 PMCID: PMC8973093 DOI: 10.1021/acsomega.2c00558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
The uptake ability toward arsenic(V), chromium(VI), and boron(III) ions of ad hoc functionalized magnetic nanostructured devices has been investigated. To this purpose, ligands based on meglumine have been synthesized and used to coat magnetite nanoparticles (Fe3O4) obtained by the co-precipitation methodology. The as-prepared hybrid material was characterized by infrared spectroscopy (IR), X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy combined with energy-dispersive X-ray analysis. Moreover, its magnetic hysteresis properties were measured to evaluate its magnetic properties, and the adsorption kinetics and isothermal models were applied to discern between the different adsorption phenomena. Specifically, the better fitting was observed by the Langmuir isotherm model for all metal ions tested, highlighting a higher uptake in arsenic (28.2 mg/g), chromium (12.3 mg/g), and boron (23.7 mg/g) sorption values if compared with other magnetic nanostructured materials. After adsorption, an external magnetic stimulus can be used to efficiently remove nanomaterials from the water. Finally the nanomaterial can be reused up to five cycles and regenerated for another three cycles.
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Affiliation(s)
- Stefano Scurti
- Dipartimento
di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Sandro Dattilo
- Istituto
per i Polimeri, Compositi e Biomateriali, CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - David Gintsburg
- Dipartimento
di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
| | - Luigi Vigliotti
- Istituto
di Scienze Marine, ISMAR-CNR, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Aldo Winkler
- Istituto
Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, 605, 00143 Rome, Italy
| | - Sabrina Carola Carroccio
- Istituto
per i Polimeri, Compositi e Biomateriali, CNR-IPCB, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Daniele Caretti
- Dipartimento
di Chimica Industriale “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
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Wang Z, Jia Y, Liu X, Liao L, Wang Z, Wang Z. Removal of boron in desalinated seawater by magnetic metal-organic frame-based composite materials: Modeling and optimizing based on methodologies of response surface and artificial neural network. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118090] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Tanaka S, Nakajima Y, Ogawa A, Kuragano T, Kon Y, Tamura M, Sato K, Copéret C. DNP NMR Spectroscopy Enabled Direct Characterization of Polystyrene-supported Catalyst Species for Synthesis of Glycidyl Esters by Transesterification. Chem Sci 2022; 13:4490-4497. [PMID: 35656145 PMCID: PMC9019915 DOI: 10.1039/d2sc00274d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/13/2022] [Indexed: 11/23/2022] Open
Abstract
Polymer-supported catalysts have been of great interest in organic syntheses, but have suffered from the difficulty in obtaining direct structural information regarding the catalyst species embedded in the polymer due to the limitations of most analytical methods. Here, we show that dynamic nuclear polarization (DNP)-enhanced solid-state NMR is ideally positioned to characterize the ubiquitous cross-linked polystyrene (PS)-supported catalysts, thus enabling molecular-level understanding and rational development. Ammonium-based catalysts, which show excellent catalytic activity and reusability for the transesterification of methyl esters with glycidol, giving glycidyl esters in high yields, were successfully characterized by DNP 15N NMR spectroscopy at 15N natural abundance. DNP 15N NMR shows in particular that the decomposition of quaternary alkylammonium moieties to tertiary amines was completely suppressed during the catalytic reaction. Furthermore, the dilute ring-opened product derived from glycidol and NO3− was directly characterized by DNP 15N CPMAS and 1H–15N and 1H–13C HETCOR NMR using a 15N enriched (NO3) sample, supporting the view that the transesterification mechanism involves an alkoxide anion derived from an epoxide and NO3−. In addition, the detailed analysis of a used catalyst indicated that the adsorption of products on the cationic center is the major deactivation step in this catalysis. We demonstrated that DNP-enhanced NMR spectroscopy enables the direct and detailed characterization of polymer-supported alkylammonium catalysts.![]()
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Affiliation(s)
- Shinji Tanaka
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1-5 Zürich 8093 Switzerland
| | - Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Atsuko Ogawa
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Takashi Kuragano
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Masanori Tamura
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Kazuhiko Sato
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology Tsukuba 305-8565 Japan
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1-5 Zürich 8093 Switzerland
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Landsman MR, Rivers F, Pedretti BJ, Freeman BD, Lawler DF, Lynd NA, Katz LE. Boric acid removal with polyol-functionalized polyether membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Lin JY, Mahasti NNN, Huang YH. Recent advances in adsorption and coagulation for boron removal from wastewater: A comprehensive review. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124401. [PMID: 33280939 DOI: 10.1016/j.jhazmat.2020.124401] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/18/2020] [Accepted: 10/26/2020] [Indexed: 06/12/2023]
Abstract
The anthropogenic emission of boron to river has become a serious problem that deteriorates the water quality and endangers the ecosystem. Although boron is a micronutrient, it is toxic to plants, animals and humans upon exposure. In this review, we first present the sources of the boron-containing streams and their composition, and then summarize the recent progress of boron removal methods based on adsorption and coagulation systematically. The boron-spiked streams are produced from coal-fired and geothermal power plants, the manufacturing and the activities of oil/gas excavation and mining. The adsorbents for boron removal are classified into the ones functionalized by chelating groups, the ones on the basis of clays or metal oxide. Three subgroups reside in the coagulation approach: electrocoagulation, chemical precipitation and chemical oxo-precipitation. The hybrid technology that combines membrane process and adsorption/coagulation was covered as well. To provide a comprehensive view of each method, we addressed the reaction mechanism, specified the strength and weakness and summarized the progress in the past 5 years. Ultimately, the prospective for future research and the possible improvement on applicability and recyclability were proposed.
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Affiliation(s)
- Jui-Yen Lin
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Nicolaus N N Mahasti
- Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Yao-Hui Huang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
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Hoshina H, Chen J, Amada H, Seko N. Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water. Polymers (Basel) 2021; 13:polym13071163. [PMID: 33916430 PMCID: PMC8038601 DOI: 10.3390/polym13071163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 11/17/2022] Open
Abstract
A chelating fabric was prepared by graft polymerization of glycidyl methacrylate (GMA) onto a nonwoven fabric, followed by attachment reaction of N-methyl-D-glucamine (NMDG) using an organic solvent-free process. The graft polymerization was performed by immersing the gamma-ray pre-irradiated fabric into the GMA emulsion, while the attachment reaction was carried out by immersing the grafted fabric in the NMDG aqueous solution. The chelating capacity of the chelating fabric prepared by reaction in the NMDG aqueous solution without any additives reached 1.74 mmol/g, which further increased to above 2.0 mmol/g when surfactant and acid catalyst were added in the solution. The boron chelation of the chelating fabric was evaluated in a batch mode. Fourier transform infrared spectrophotometer (FTIR) was used to characterize the fabrics. The chelating fabric can quickly chelate boron from water to form a boron ester, and a high boron chelating ability close to 18.3 mg/g was achieved in the concentrated boron solution. The chelated boron can be eluted completely by HCl solution. The regeneration and stability of the chelating fabric were tested by 10 cycles of the chelation-elution operations. Considering the organic solvent-free preparation process and the high boron chelating performance, the chelating fabric is promising for the boron removal from water.
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