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Chen B, Zhang Y, Duan J, Wang F. g-C 3N 4 modified natural low-grade dolomite-palygorskite: Removal capacity and adsorption mechanism for Gd 3. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134859. [PMID: 38865922 DOI: 10.1016/j.jhazmat.2024.134859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 06/14/2024]
Abstract
Rare earth elements (REEs) pose significant environmental challenges due to the wastewater generated during their extraction. Developing efficient adsorbents with simple, economical and eco-friendly methods for removing and recovering REEs from wastewater is highly demanded but full of challenges. This study creates a novel adsorbent (g-C3N4/0.5DPal) for efficient REEs removal and recovery by integrating the low-grade mineral dolomite-palygorskite with g-C3N4 through a "one-pot" calcination method. Characterization techniques including SEM, XRD, FT-IR, XPS, etc., were employed to analyze the structure of the g-C3N4/0.5DPal composite. Batch adsorption experiments focusing on Gd3+ from among the REEs were conducted to evaluate the adsorption performance. The results reveal a remarkable 3.34 times increase in Gd3+ adsorption capacity of g-C3N4/0.5DPal (192.46 mg/g) compared to raw dolomite-palygorskite (57.62 mg/g) at 298 K, highlighting the effectiveness of the modification. The adsorption mechanism involves electrostatic interactions, surface complexation, and cation-π interactions. It is worth noting that g-C3N4 facilitates the conversion of dolomite to calcite during the preparation process, enhancing the Gd3+ adsorption of g-C3N4/0.5DPal. This work offers a promising solution for the removal and recovery of REEs and the high-value utilization of low-grade minerals, addressing both environmental concerns and resource sustainability.
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Affiliation(s)
- Bo Chen
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, School of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 535011, China
| | - Yuankai Zhang
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, School of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 535011, China; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Jiayi Duan
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, School of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 535011, China; School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Feng Wang
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, School of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 535011, China; Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China.
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2
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Sikma RE, Song B, Deneff JI, Smith J, Sanchez K, Reyes RA, Lucero LM, Fritzsching KJ, Ilgen AG, Sava Gallis DF. Tuning the pore chemistry of Zr-MOFs for efficient metal ion capture from complex streams. Chem Commun (Camb) 2024; 60:5808-5811. [PMID: 38712454 DOI: 10.1039/d4cc00320a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Metal-organic frameworks (MOFs) have shown promise for adsorptive separations of metal ions. Herein, MOFs based on highly stable Zr(IV) building units were systematically functionalized with targeted metal binding groups. Through competitive adsorption studies, it was shown that the selectivity for different metal ions was directly tunable through functional group chemistry.
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Affiliation(s)
- R Eric Sikma
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Boyoung Song
- Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Jacob I Deneff
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Jacob Smith
- Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Kadie Sanchez
- Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Raphael A Reyes
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Luke M Lucero
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
| | - Keith J Fritzsching
- Organic Materials Science Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Anastasia G Ilgen
- Geochemistry Department, Sandia National Laboratories, Albuquerque, NM 87185, USA
| | - Dorina F Sava Gallis
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
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Zhang Y, Guo W, Liu D, Ding Y. Tuning the Dual Active Sites of Functionalized UiO-66 for Selective Adsorption of Yb(III). ACS APPLIED MATERIALS & INTERFACES 2023; 15:17233-17244. [PMID: 36962007 DOI: 10.1021/acsami.3c00938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The recovery of rare earth elements (REEs) from discharged electronic devices or mineral waste water is highly essential but still facing challenges. In this work, two amino-functionalized carboxyl-UiO-66 (UiO-66-COOH-TETA and UiO-66-(COOH)2-ED) prepared via the postmodification method were employed as the adsorbents for Yb(III) capture. The experimental results revealed their superior adsorption capacities of 161.5 and 202.6 mg/g, respectively. Meanwhile, their adsorption processes can be described by the pseudo-second-order kinetic model and Langmuir model. Effects of initial pH and temperature on adsorptions were systematically evaluated, affording an optimal operating condition (i.e., pH of 5.5-6, T of 65 °C, t of 10 h). Moreover, the fabricated materials exhibited great reusability after five adsorption-regeneration cycles. UiO-66-COOH-TETA demonstrated good separation selectivity for Yb(III) over light REEs (i.e., 3.98 of Yb/Ce, 3.51 of Yb/Nd). Based on the density functional theory calculations and characterization analysis (XPS, Zeta, mapping, and IR), the adsorption mechanisms were mainly attributed to significant electrostatic attraction and strong surface complexation between N and O sites and Yb(III).
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Affiliation(s)
- Yi Zhang
- Key Laboratory of Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory for Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
| | - Weidong Guo
- Key Laboratory of Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory for Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
| | - Donghao Liu
- Key Laboratory of Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory for Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
| | - Yigang Ding
- Key Laboratory of Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory for Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan 430073, China
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4
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Zhang Y, Liu D, Guo W, Ding Y. Less-precious nitrogen-rich covalent organic frameworks capable of effective rare earth recovery from water. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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5
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Recent advances in removal of toxic elements from water using MOFs: A critical review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104319] [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] Open
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Paz R, Gupta NK, Viltres H, Leyva C, Romero-Galarza A, Srinivasan S, Rajabzadeh AR. Lanthanides adsorption on metal-organic framework: Experimental insight and spectroscopic evidence. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Synergistic dicarboxylate sites of natural citric acid modified MOF-808 for the deep removal of Pb2+ in water. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sinha S, De S, Mishra D, Shekhar S, Agarwal A, Sahu KK. Phosphonomethyl iminodiacetic acid functionalized metal organic framework supported PAN composite beads for selective removal of La(III) from wastewater: Adsorptive performance and column separation studies. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127802. [PMID: 34896724 DOI: 10.1016/j.jhazmat.2021.127802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/15/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
The rare earth elements being toxic in nature are being accumulated in water bodies as their industrial usage is growing exponentially, thus their efficient separation holds an immense significance. Herein, ligand functionalized metal organic framework (MOF), Phosphonomethyl iminodiacetic acid coordinated at Fe-BTC, was synthesized post-synthetically and incorporated subsequently in polyacrylonitrile polymer to prepare the composite beads via nonsolvent induced-phase-inversion technique for selective adsorption of La(III) from the wastewater in batch and dynamic column mode. XPS NMR, and FTIR were used to establish the interaction between functionalized ligand and unsaturated metal nodes of MOF. The adsorption capacity was 232.5 mg/g and 77.51 mg/g at 298 K of the functionalized MOF and composite beads respectively. Adsorption kinetics followed a pseudo-second order rate equation, and isotherm indicated the best fitting with Langmuir model. The dynamic behavior of the adsorption column packed with MOF/Polymer beads was fairly described by the Thomas model. The breakthrough time of 23.2 h could be attained with 12 cm of bed height and 10 ml/min of flow rate. These MOF/Polymer beads shown the selectivity of La over transitional metals were recycled over 5 times with about 15% loss of adsorption capacity. The findings provide suggestive insights of the potential use of functionalized MOF towards the separation of the rare earth element.
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Affiliation(s)
- Shivendra Sinha
- MER Division, National Metallurgical Laboratory, Jamshedpur, India; Academy of Scientific and Innovative Research, New Delhi, India
| | - S De
- Chemical Engineering Department, IIT Kharagpur, India.
| | - D Mishra
- MER Division, National Metallurgical Laboratory, Jamshedpur, India.
| | - S Shekhar
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
| | - A Agarwal
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
| | - K K Sahu
- MER Division, National Metallurgical Laboratory, Jamshedpur, India
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Wilfong WC, Ji T, Duan Y, Shi F, Wang Q, Gray ML. Critical review of functionalized silica sorbent strategies for selective extraction of rare earth elements from acid mine drainage. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127625. [PMID: 34857400 DOI: 10.1016/j.jhazmat.2021.127625] [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: 07/29/2021] [Revised: 10/14/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
The ubiquitous and growing global reliance on rare earth elements (REEs) for modern technology and the need for reliable domestic sources underscore the rising trend in REE-related research. Adsorption-based methods for REE recovery from liquid waste sources are well-positioned to compete with those of solvent extraction, both because of their expected lower negative environmental impact and simpler process operations. Functionalized silica represents a rising category of low cost and stable sorbents for heavy metal and REE recovery. These materials have collectively achieved high capacity and/or high selective removal of REEs from ideal solutions and synthetic or real coal wastewater and other leachate sources. These sorbents are competitive with conventional materials, such as ion exchange resins, activated carbon; and novel polymeric materials like ion-imprinted particles and metal organic frameworks (MOFs). This critical review first presents a data mining analysis for rare earth element recovery publications indexed in Web of science, highlighting changes in REE recovery research foci and confirming the sharply growing interest in functionalized silica sorbents. A detailed examination of sorbent formulation and operation strategies to selectively separate heavy (HREE), middle (MREE), and light (LREE) REEs from the aqueous sources is presented. Selectivity values for sorbents were largely calculated from available figure data and gauged the success of the associated strategies, primarily: (1) silane-grafted ligands, (2) impregnated ligands, and (3) bottom-up ligand/silica hybrids. These were often accompanied by successful co-strategies, especially bite angle control, site saturation, and selective REE elution. Recognizing the need to remove competing fouling metals to achieve purified REE "baskets," we highlight techniques for eliminating these species from acid mine drainage (AMD) and suggest a novel adsorption-based process for purified REE extraction that could be adapted to different water systems.
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Affiliation(s)
- Walter C Wilfong
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA; NETL Support Contractor, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA.
| | - Tuo Ji
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA; NETL Support Contractor, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Yuhua Duan
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Fan Shi
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA; NETL Support Contractor, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - Qiuming Wang
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA; NETL Support Contractor, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
| | - McMahan L Gray
- National Energy Technology Laboratory, 626 Cochrans Mill Road, P.O. Box 10940, Pittsburgh, PA 15236-0940, USA
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da Costa TB, da Silva MGC, Vieira MGA. Effective recovery of ytterbium through biosorption using crosslinked sericin-alginate beads: A complete continuous packed-bed column study. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126742. [PMID: 34348210 DOI: 10.1016/j.jhazmat.2021.126742] [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: 03/16/2021] [Revised: 07/01/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
The recovery of rare-earth from secondary sources is essential for cleaner production. The development of natural biocomposites is promising for this purpose. Sericin is a waste protein from silk manufacturing. The highly polar groups on the surface of sericin facilitate blending and crosslinking with other polymers to produce biocomposites with improved properties. In this work, we investigate ytterbium recovery onto a natural biocomposite based on sericin/alginate/poly(vinyl alcohol) (SAPVA) in packed-bed column, aiming to establish a profitable application for sericin. Effects of flow rate and ytterbium inlet concentration showed that the highest exhaustion biosorption capacity (128.39 mg/g) and lowest mass transfer zone (4.13 cm) were reached under the operating conditions of 0.03 L/h and 87.95 mg/L. Four reusability cycles were performed under the optimum operating conditions using 0.3 mol/L HNO3. Ytterbium recovery was highly successful; desorption efficiency was higher than 97% and a final ytterbium-rich concentrate (3870 mg/L) was 44 times higher than input concentration. Regenerated beads characterization showed that the cation exchange mechanism plays a major function in continuous biosorption of ytterbium. SAPVA beads also showed higher biosorption/desorption performance for ytterbium than other competing ions. These results suggest the application of SAPVA may be an alternative for large-scale ytterbium recovery.
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Affiliation(s)
- Talles Barcelos da Costa
- School of Chemical Engineering, University of Campinas, Albert Einstein Avenue, 13083-852 Campinas, Brazil.
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11
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Bhadra BN, Ahmed I, Lee HJ, Jhung SH. Metal-organic frameworks bearing free carboxylic acids: Preparation, modification, and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214237] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Zhang Y, Yan J, Xu J, Tian C, Matyjaszewski K, Tilton RD, Lowry GV. Phosphate Polymer Nanogel for Selective and Efficient Rare Earth Element Recovery. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:12549-12560. [PMID: 34464106 DOI: 10.1021/acs.est.1c01877] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Demand for rare earth elements (REEs) is increasing, and REE production from ores is energy-intensive. Recovering REEs from waste streams can provide a more sustainable approach to help meet REE demand but requires materials with high selectivity and capacity for REEs due to the low concentration of REEs and high competing ion concentrations. Here, we developed a phosphate polymer nanogel (PPN) to selectively recover REEs from low REE content waste streams, including leached fly ash. A high phosphorus content (16.2 wt % P as phosphate groups) in the PPN provides an abundance of coordination sites for REE binding. In model solutions, the distribution coefficient (Kd) for all REEs ranged from 1.3 × 105 to 3.1 × 105 mL g-1 at pH = 7, and the sorption capacity (qm) for Nd, Gd, and Ho were ∼300 mg g-1. The PPN was selective toward REEs, outcompeting cations (Ca, Mg, Fe, Al) at up to 1000-fold excess concentration. The PPN had a Kd of ∼105-106 mL g-1 for lanthanides in coal fly ash leachate (pH = 5), orders of magnitude higher than the Kd of major competing ions (∼103-104 mL g-1). REEs were recovered from the PPN using 3.5% HNO3, and the material remained effective over three sorption-elution cycles. The high REE capacity and selectivity and good durability in a real waste stream matrix suggest its potential to recover REEs from a broad range of secondary REE stocks.
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Zhang Y, Bian T, Jiang R, Zhang Y, Zheng X, Li Z. Bionic chitosan-carbon imprinted aerogel for high selective recovery of Gd(Ⅲ) from end-of-life rare earth productions. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124347. [PMID: 33144020 DOI: 10.1016/j.jhazmat.2020.124347] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
High selective recovery of Gd(Ⅲ) from end-of-life rare earth productions is essential for cleaner production. Chitosan(CS), a biomaterial, has shown excellent results in water treatment. The amino and hydroxyl groups on the surface of CS play a vital role in adsorbing metal ions. Polydopamine has good stability, strong water dispersibility, and excellent biocompatibility. As a bio-crosslinking agent, the amino and phenolic hydroxyl groups on its surface can be combined with metal ions to help the material absorb metal ions. This paper combines the active groups of biomimetic materials and the mechanical properties of new nanomaterials multi-walled carbon nanotubes and graphene oxide, and prepared a high-performance chitosan-based aerogel MWCNT-PDA-CS-GO through heat and mass transfer at low temperature and low pressure. The adsorption mechanism of MWCNT-PDA-CS-GO for Gd(Ⅲ) was analyzed through a series of characterization and adsorption experiments. At pH 7.0, the maximum adsorption capacity of aerogel for Gd(Ⅲ) reached 150.86 mg g-1. The relative selectivity of imprinted ions is 48.02 times higher than other ions. All the results indict MWCNT-PDA-CS-GO aerogel exhibits excellent selectivity and stability for effective recovery of Gd(Ⅲ).
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Affiliation(s)
- Yuzhe Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China
| | - Tingting Bian
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China
| | - Rong Jiang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China
| | - Yi Zhang
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China
| | - Xudong Zheng
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China; Jiangsu Engineering Research Center of Petrochemical Safety and Environmental Protection, Changzhou 213164, PR China.
| | - Zhongyu Li
- School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, PR China; Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, PR China; Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, PR China.
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Ahmed I, Bhattacharjee S, Lee CS, Kang KK, Ahn JW, Ahn WS. Aqueous Nd 3+ capture using a carboxyl-functionalized porous carbon derived from ZIF-8. J Colloid Interface Sci 2021; 594:702-712. [PMID: 33780773 DOI: 10.1016/j.jcis.2021.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/27/2021] [Accepted: 03/08/2021] [Indexed: 11/26/2022]
Abstract
A porous graphitic carbon was obtained via the pyrolysis of a zeolite imidazolate framework (ZIF-8) under Ar atmosphere. Then, the carbon was functionalized with carboxylic groups and applied for separation of neodymium ions (Nd3+) from water. The adsorbent (denoted as C-ZDC) was characterized by X-ray diffraction, N2 adsorption-desorption isotherms, infrared spectroscopy, X-ray photoelectron spectroscopy, scanning and transition electron microscopies, thermogravimetric analysis, and Boehm titration. A practical adsorption equilibrium was attained within 4 h, and the adsorption isotherm at 25 °C revealed a maximum adsorption capacity of 175 mg/g, which is one of the highest values reported for different kinds of adsorbents. The adsorption kinetics and equilibrium isotherms were modeled, and the selectivity for Nd3+ over other metal ions was examined. From the effect of solution pH on the adsorption and material characterization results before and after adsorption, the high adsorption capacity of C-ZDC was ascribed to the formation of coordination bonds between Nd3+ ions and the -COOH groups. Further, the material was reusable for at least four adsorption-desorption cycles after a simple step of acid washing.
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Affiliation(s)
- Imteaz Ahmed
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, Republic of Korea; Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Samiran Bhattacharjee
- Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka 1000, Bangladesh
| | - Chang-Soo Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Yuseong-Gu, Daejeon 305-764, Republic of Korea.
| | - Kyoung-Ku Kang
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Yuseong-Gu, Daejeon 305-764, Republic of Korea
| | - Ji-Whan Ahn
- Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 305-350, Republic of Korea
| | - Wha-Seung Ahn
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, Republic of Korea.
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Ru J, Wang X, Wang F, Cui X, Du X, Lu X. UiO series of metal-organic frameworks composites as advanced sorbents for the removal of heavy metal ions: Synthesis, applications and adsorption mechanism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111577. [PMID: 33160184 DOI: 10.1016/j.ecoenv.2020.111577] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/16/2020] [Accepted: 10/27/2020] [Indexed: 05/25/2023]
Abstract
Heavy metal pollution has threatened the ecological environment and human health, therefore, effective removal of these toxic pollutants from various complex substrates is of great significance. So far, adsorption is still one of the most effective approaches. Metal-organic frameworks (MOFs), which are porous crystalline materials consisting of metal ions or metal clusters and organic ligands through coordination bonds. Due to their high surface area, porosity, as well as good chemical/thermal stability, the materials have recently attracted great attention in environmental analytical chemistry. This review mainly focused on the recent studies about the applications of UiO series MOFs and their composites as the emerging MOFs, which have been used effectively for the adsorption and removal of diverse heavy metal ions from a variety of environmental samples as novel adsorption materials. Moreover, an elaboration about UiO-MOFs and its composites including the synthetic methods and the applications of these materials in the removal of heavy metal ions were presented in detail. In addition, the adsorption characteristics and mechanism of UiO-MOFs as solid sorbents for heavy metal ions were discussed, including adsorption isotherms equation, adsorption thermodynamics, and kinetics. To this end, the developing trends of MOF-based composites for the removal of heavy metal ions had also prospected. This review will provide a new idea for the study of the adsorption mechanism of heavy metal ions on sorbents and the development of high-performance media for the efficient removal of pollutants in wastewater.
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Affiliation(s)
- Jing Ru
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
| | - Xuemei Wang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China.
| | - Fangbing Wang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
| | - Xinglan Cui
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
| | - Xinzhen Du
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China.
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Cruz-Navarro JA, Hernandez-Garcia F, Alvarez Romero GA. Novel applications of metal-organic frameworks (MOFs) as redox-active materials for elaboration of carbon-based electrodes with electroanalytical uses. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213263] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Di T, Tan D, Yu Q, Lin J, Zhu T, Li T, Li L. Ultra-High Performance of Hyper-Crosslinked Phosphate-Based Polymer for Uranium and Rare Earth Element Adsorption in Aqueous Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13860-13871. [PMID: 31584280 DOI: 10.1021/acs.langmuir.9b02459] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, a new type of hyper-crosslinked phosphate-based polymer (HCPP) polymerized by bis(2-methacryloxyethyl)phosphate has been developed for uranium and rare earth element (REE) extraction in an aqueous solution. The influence of the pH value, contact time, initial concentration, temperature, and competing ions on uranium adsorption of HCPP is investigated in detail. HCPP exhibits a maximum uranium adsorption capacity of up to 800 mg g-1 at pH = 6.0 and excellent selectivity toward uranium adsorption over coexisting ions, because of the high affinity between HCPP and uranium ions and dense phosphate groups on the backbone. It also demonstrates high adsorption performance in both simulated seawater with a high salt concentration and a real nuclear industrial effluent. Besides, the crosslinked network structure of HCPP endows this polymer with high chemical stability and reusability. Furthermore, the adsorption mechanism is probed by energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared measurements. It is confirmed that the adsorption of uranium on the adsorbent originates from the interaction between phosphate groups and uranium ions. Meanwhile, HCPP also displays high REE adsorption capacities. This work indicates that the phosphate-based HCPP could be utilized as a promising adsorbent for the effective removal of uranium and REEs from aqueous solution.
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Affiliation(s)
- Tuo Di
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
| | - Donggui Tan
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
| | - Qi Yu
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
| | - Jiawei Lin
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
| | - Tingting Zhu
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
| | - Tiesheng Li
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Lei Li
- College of Materials and Fujian Provincial Key Laboratory of Materials Genome , Xiamen University , Xiamen 361005 , P. R. China
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