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Li D, Wang Y, Deng W, Wang D. Efficient and selective capture of various mercury species from water using an exfoliated thiocellulose. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:171063. [PMID: 38373452 DOI: 10.1016/j.scitotenv.2024.171063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/21/2024]
Abstract
The primary challenge in mercury (Hg) adsorbents for large-scale practical applications is to achieve the balance between performance and economy. This work attempts to address this issue by synthesizing an exfoliated thiocellulose (CU-SH) with high thiol density and hierarchical porosity using in-situ ligands grafting combined with chemical stripping. The prepared CU-SH shows remarkable physical stability and chemical resistance, and the micron sized fiber is conducive to separation from water. Hg(II) adsorption tests in water demonstrate that CU-SH has broad working pH range (1-12), fast kinetics (0.64 g/(mg‧min)), high adsorption capacity (652.9 mg/g), outstanding selectivity (Kd = 6.2 × 106 mg/L), and excellent reusability (R > 95 % after 20 cycles). Importantly, CU-SH exhibits good resistance to various coexisting ions and organic matter, and can efficiently remove Hg(II) from different real water. CU-SH can be made into a Point of Use (POU) device for continuous and efficient removal of Hg(II) from drinking water. 0.1 g CU-SH filled device can purify 3.2 L of Hg(II) (0.5 ppm) contaminated tap water before the breakthrough point of 2 ppb. Moreover, CU-SH also reveals good adsorption affinity for Hg-dissolved organic matter complexes (Hg(II)-DOM) in water, chloro(phenyl)mercury (PMC) in organic media and Hg0 vapor in air, suggesting the great practical potential of CU-SH.
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Affiliation(s)
- Daikun Li
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Yongmin Wang
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Wanying Deng
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400715, China
| | - Dingyong Wang
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, Chongqing 400715, China.
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2
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Kazi OA, Chen W, Eatman JG, Gao F, Liu Y, Wang Y, Xia Z, Darling SB. Material Design Strategies for Recovery of Critical Resources from Water. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300913. [PMID: 37000538 DOI: 10.1002/adma.202300913] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Population growth, urbanization, and decarbonization efforts are collectively straining the supply of limited resources that are necessary to produce batteries, electronics, chemicals, fertilizers, and other important products. Securing the supply chains of these critical resources via the development of separation technologies for their recovery represents a major global challenge to ensure stability and security. Surface water, groundwater, and wastewater are emerging as potential new sources to bolster these supply chains. Recently, a variety of material-based technologies have been developed and employed for separations and resource recovery in water. Judicious selection and design of these materials to tune their properties for targeting specific solutes is central to realizing the potential of water as a source for critical resources. Here, the materials that are developed for membranes, sorbents, catalysts, electrodes, and interfacial solar steam generators that demonstrate promise for applications in critical resource recovery are reviewed. In addition, a critical perspective is offered on the grand challenges and key research directions that need to be addressed to improve their practical viability.
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Affiliation(s)
- Omar A Kazi
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Wen Chen
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Jamila G Eatman
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Feng Gao
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Yining Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Yuqin Wang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Zijing Xia
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - Seth B Darling
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL, 60439, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
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3
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Zhang X, Wang T, Wang C, Hübner R, Eychmüller A, Zhan J, Cai B. Bimetallic Pt-Hg Aerogels for Electrocatalytic Upgrading of Ethanol to Acetate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207557. [PMID: 36866466 DOI: 10.1002/smll.202207557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/13/2023] [Indexed: 06/15/2023]
Abstract
Electrochemical upgrading of ethanol to acetic acid provides a promising strategy to couple with the current hydrogen production from water electrolysis. This work reports the design of a series of bimetallic PtHg aerogels, where the PtHg aerogel exhibits a 10.5-times higher mass activity than that of commercial Pt/C toward ethanol oxidation. More impressively, the PtHg aerogel demonstrates nearly 100% selectivity toward the production of acetic acid. The operando infrared spectroscopic studies and nuclear magnetic resonance analysis verify the preferable C2 pathway mechanism during the reaction. This work opens an avenue for the electrochemical synthesis of acetic acid via ethanol electrolysis.
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Affiliation(s)
- Xin Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Tao Wang
- Collaborative Innovation Center of Chemistry for Energy Materials State Key Laboratory of Physical Chemistry of Solid Surfaces Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Cui Wang
- Physical Chemistry, Technische Universität Dresden, 01069, Dresden, Germany
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany
| | | | - Jinhua Zhan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
| | - Bin Cai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
- Shenzhen Research Institute of Shandong University, Shenzhen, 518057, P. R. China
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4
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Li S, Yang L, Wu J, Yao L, Han D, Liang Y, Yin Y, Hu L, Shi J, Jiang G. Efficient and selective removal of Hg(II) from water using recyclable hierarchical MoS 2/Fe 3O 4 nanocomposites. WATER RESEARCH 2023; 235:119896. [PMID: 36965293 DOI: 10.1016/j.watres.2023.119896] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/07/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Developing practical and cost-effective adsorbents with satisfactory mercury (Hg) remediation capability is indispensable for aquatic environment safety and public health. Herein, a recyclable hierarchical MoS2/Fe3O4 nanocomposite (by in-situ growth of MoS2 nanosheets on the surface of Fe3O4 nanospheres) is presented for the selective removal of Hg(II) from aquatic samples. It exhibited high adsorption capacity (∼1923.5 mg g -1), fast kinetics (k2 ∼ 0.56 mg g -1 min-1), broad working pH range (2-11), excellent selectivity (Kd > 1.0 × 107 mL g -1), and great reusability (removal efficiency > 90% after 20 cycles). In particular, removal efficiencies of up to ∼97% for different Hg(II) concentrations (10-1000 μg L -1) in natural water and industrial effluents confirmed the practicability of MoS2/Fe3O4. The possible mechanism for effective Hg(II) removal was discussed by a series of characterization analyses, which was attributed to the alteration of the MoS2 structure and the surface coordination of Hg-S. The accessibility of surface sulfur sites and the diffusion of Hg(II) in the solid-liquid system were enhanced due to the advantage of the expanded interlayer spacing (0.96 nm) and the hierarchical structure. This study suggests that MoS2/Fe3O4 is a promising material for Hg(II) removal in actual scenarios and provides a feasible approach by rationally constructing hierarchical structures to promote the practical applications of MoS2 in sustainable water treatments.
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Affiliation(s)
- Shiyu Li
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jialong Wu
- State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Linlin Yao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Deming Han
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China
| | - Yong Liang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Yongguang Yin
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ligang Hu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianbo Shi
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China; State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China.
| | - Guibin Jiang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310000, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Liu J, Wu D, Tan X, Yu P, Xu L. Review of the Interactions between Conventional Cementitious Materials and Heavy Metal Ions in Stabilization/Solidification Processing. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093444. [PMID: 37176327 PMCID: PMC10179848 DOI: 10.3390/ma16093444] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
In the past few decades, solidification/stabilization (S/S) technology has been put forward for the purpose of improving soil strength and inhibiting contaminant migration in the remediation of heavy metal-contaminated sites. Cement, lime, and fly ash are among the most common and effective binders to treat contaminated soils. During S/S processing, the main interactions that are responsible for improving the soil's behaviors can be summarized as gelification, self-hardening, and aggregation. Currently, precipitation, incorporation, and substitution have been commonly accepted as the predominant immobilization mechanisms for heavy metal ions and have been directly verified by some micro-testing techniques. While replacement of Ca2+/Si4+ in the cementitious products and physical encapsulation remain controversial, which is proposed dependent on the indirect results. Lead and zinc can retard both the initial and final setting times of cement hydration, while chromium can accelerate the initial cement hydration. Though cadmium can shorten the initial setting time, further cement hydration will be inhibited. While for mercury, the interference impact is closely associated with its adapted anion. It should be pointed out that obtaining a better understanding of the remediation mechanism involved in S/S processing will contribute to facilitating technical improvement, further extension, and application.
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Affiliation(s)
- Jingjing Liu
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Dongbiao Wu
- Anhui Urban Construction Design Institute Corp., Ltd., Hefei 230051, China
| | - Xiaohui Tan
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Peng Yu
- Anhui Urban Construction Design Institute Corp., Ltd., Hefei 230051, China
| | - Long Xu
- School of Resource and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
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Xu H, Hong Q, Zhang ZY, Cai X, Fan Y, Liu Z, Huang W, Yan N, Qu Z, Zhang L. SO 2-Driven In Situ Formation of Superstable Hg 3Se 2Cl 2 for Effective Flue Gas Mercury Removal. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:5424-5432. [PMID: 36939455 DOI: 10.1021/acs.est.2c09640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Flue gas mercury removal is mandatory for decreasing global mercury background concentration and ecosystem protection, but it severely suffers from the instability of traditional demercury products (e.g., HgCl2, HgO, HgS, and HgSe). Herein, we demonstrate a superstable Hg3Se2Cl2 compound, which offers a promising next-generation flue gas mercury removal strategy. Theoretical calculations revealed a superstable Hg bonding structure in Hg3Se2Cl2, with the highest mercury dissociation energy (4.71 eV) among all known mercury compounds. Experiments demonstrate its unprecedentedly high thermal stability (>400 °C) and strong acid resistance (5% H2SO4). The Hg3Se2Cl2 compound could be produced via the reduction of SeO32- to nascent active Se0 by the flue gas component SO2 and the subsequent combination of Se0 with Hg0 and Cl- ions or HgCl2. During a laboratory-simulated experiment, this Hg3Se2Cl2-based strategy achieves >96% removal efficiencies of both Hg0 and HgCl2 enabling nearly zero Hg0 re-emission. As expected, real mercury removal efficiency under Se-rich industrial flue gas conditions is much more efficient than Se-poor counterparts, confirming the feasibility of this Hg3Se2Cl2-based strategy for practical applications. This study sheds light on the importance of stable demercury products in flue gas mercury treatment and also provides a highly efficient and safe flue gas demercury strategy.
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Affiliation(s)
- Haomiao Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qinyuan Hong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhao-Yang Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200092, China
| | - Xiangling Cai
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yurui Fan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhisong Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Wenjun Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Naiqiang Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lizhi Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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7
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In situ acid etching boosts mercury accommodation capacities of transition metal sulfides. Nat Commun 2023; 14:1395. [PMID: 36914677 PMCID: PMC10011380 DOI: 10.1038/s41467-023-37140-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
Transition Metal sulfides (TMSs) are effective sorbents for entrapment of highly polluting thiophiles such as elemental mercury (Hg0). However, the application of these sorbents for mercury removal is stymied by their low accommodation capacities. Among the transition metal sulfides, only CuS has demonstrated industrially relevant accommodation capacity. The rest of the transition metal sulfides have 100-fold lower capacities than CuS. In this work, we overcome these limitations and develop a simple and scalable process to enhance Hg0 accommodation capacities of TMSs. We achieve this by introducing structural motifs in TMSs by in situ etching. We demonstrate that in situ acid etching produces TMSs with defective surface and pore structure. These structural motifs promote Hg0 surface adsorption and diffusion across the entire TMSs architecture. The process is highly versatile and the in situ etched transition metal sulfides show over 100-fold enhancement in their Hg0 accommodation capacities. The generality and the scalability of the process provides a framework to develop TMSs for a broad range of applications.
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8
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Lu L, Xie Y, Yang Z, Chen B. Sustainable decontamination of heavy metal in wastewater and soil with novel rectangular wave asymmetrical alternative current electrochemistry. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130021. [PMID: 36152548 DOI: 10.1016/j.jhazmat.2022.130021] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
A new concept of removal and recovery of heavy metals and simultaneous regeneration and reuse of ethylenediamine-tetraacetic acid (EDTA) in soil washing effluent containing metal-EDTA complexes is proposed, which is used to remediate heavy metal contaminated soil. To achieve this goal, soil washing approach coupled with rectangular wave asymmetrical alternative current electrochemistry (RW-ACE) equipped with amidoxime-functionalized electrodes (Ami-CF) is employed. With high hydrophilicity and strong binding affinity, Ami-CF could specifically compete for heavy metals over EDTA under electric field. RW-ACE system is found successfully to achieve the non-destructive decomplexation of heavy metal-EDTA, and then regenerate EDTA for highly recycling, which saves as high as 98.9 % EDTA consumption compared with conventional washing method. Moreover, more than 90% of heavy metals are recovered and deposited on the electrode with a majority of them existed as zero-valence state as evidenced by XPS. The RW-ACE method is universal for various heavy metals such as Cu2+, Zn2+, Cd2+, and Pb2+ in an authentic contaminated soil, and the loss of soil nutrient is very limited. Along with long-term assessment and operation cost estimation, the RW-ACE method is a sustainable remediation approach for the heavy metal polluted wastewater and soils, and easily scaled up for field practice.
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Affiliation(s)
- Lun Lu
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China
| | - Yunhao Xie
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zhi Yang
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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9
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Wang L, Han J, Su W, Li A, Zhang W, Li H, Hu H, Song W, Xu C, Chen J. Gut-on-a-chip for exploring the transport mechanism of Hg(II). MICROSYSTEMS & NANOENGINEERING 2023; 9:2. [PMID: 36597512 PMCID: PMC9805456 DOI: 10.1038/s41378-022-00447-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/09/2022] [Accepted: 08/11/2022] [Indexed: 06/17/2023]
Abstract
Animal models and static cultures of intestinal epithelial cells are commonly used platforms for exploring mercury ion (Hg(II)) transport. However, they cannot reliably simulate the human intestinal microenvironment and monitor cellular physiology in situ; thus, the mechanism of Hg(II) transport in the human intestine is still unclear. Here, a gut-on-a-chip integrated with transepithelial electrical resistance (TEER) sensors and electrochemical sensors is proposed for dynamically simulating the formation of the physical intestinal barrier and monitoring the transport and absorption of Hg(II) in situ. The cellular microenvironment was recreated by applying fluid shear stress (0.02 dyne/cm2) and cyclic mechanical strain (1%, 0.15 Hz). Hg(II) absorption and physical damage to cells were simultaneously monitored by electrochemical and TEER sensors when intestinal epithelial cells were exposed to different concentrations of Hg(II) mixed in culture medium. Hg(II) absorption increased by 23.59% when tensile strain increased from 1% to 5%, and the corresponding expression of Piezo1 and DMT1 on the cell surface was upregulated.
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Affiliation(s)
- Li Wang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Junlei Han
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Weiguang Su
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Anqing Li
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Wenxian Zhang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Huimin Li
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Huili Hu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Genetics, School of Basic Medical Sciences, Shandong University, 250012 Jinan, China
- The Research Center of Stem Cell and Regenerative Medicine, School of Basic Medical Sciences, Cheeloo Medical College, Shandong University, 250012 Jinan, China
| | - Wei Song
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021 China
| | - Chonghai Xu
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
| | - Jun Chen
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353 China
- Shandong Institute of Mechanical Design and Research, Jinan, 250353 China
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10
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Fattah ZA. Efficient Removal of Mercury from Polluted Aqueous Solutions Using the Wireless Bipolar Electrochemistry Technique. Chemistry 2022; 11:e202200231. [PMID: 36541655 PMCID: PMC9769084 DOI: 10.1002/open.202200231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/11/2022] [Indexed: 12/24/2022]
Abstract
Mercury represents one of the major toxic pollutants in water that affect human and ecosystem. Extensive efforts have been globally invested to remove mercury using various chemical and electrochemical approaches. In this study, I propose the use of bipolar electrochemistry for the first time for mercury depollution process. Mercury(II) is removed from aqueous solutions by direct electrodeposition on millimeter scale graphite rods held in a bipolar setup. By adjusting the strength of the applied electric field and the number of the graphite rods the efficiency of the system can be controlled. This wireless technique allows the use of multiple graphite rod arrays within the bulk cell which resulted in high removal efficiency (98 %) of Hg2+ ions from the polluted solution. The method is straightforward, green, and efficient. The concept can be adapted to remove other heavy metal ions or electrochemically active contaminants from polluted water as long as their reduction potentials are within the water stability window.
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Affiliation(s)
- Zahra Ali Fattah
- Chemistry DepartmentDuhok UniversityZakho Street 381006AJ Duhok Kurdistan RegionIraq
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11
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Malakhova I, Parotkina Y, Eliseikina M, Mironenko A, Privar Y, Elovskiy E, Bratskaya S. Flow-Through Polyethylenimine/ZnS Supermacroporous Composite for Hg(II) Uptake at ppb Concentrations. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Irina Malakhova
- Institute of Chemistry, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
| | - Yuliya Parotkina
- Institute of Chemistry, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
| | - Marina Eliseikina
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, 17, Palchevskogo Street, Vladivostok 690041, Russia
| | - Aleksandr Mironenko
- Institute of Chemistry, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
| | - Yuliya Privar
- Institute of Chemistry, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
| | - Evgeniy Elovskiy
- Far Eastern Geological Institute, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
| | - Svetlana Bratskaya
- Institute of Chemistry, Far Eastern Branch of RAS, 159, Prosp. 100-letiya Vladivostoka, Vladivostok 690022, Russia
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12
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Santos IDSD, Bao SX, Musah BI. Metakaolin-based geopolymer for mercury removal from model wastewater. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2022; 94:e10779. [PMID: 36038501 DOI: 10.1002/wer.10779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/23/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Mercury is recognized as a serious hazard, nature bioaccumulative and persistent to the environment. Developing a low-cost, effective, eco-friendly adsorbent for removing mercury constitutes an urgent task. In this study, metakaolin-based geopolymer (MKG) was synthesized and applied to remove mercury from model wastewater by adsorption. The samples were characterized by X-ray fluorescence (XRF), Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD) pattern, Fourier transform infrared (FTIR), and scanning electron microscope (SEM). They confirmed the synthesis of geopolymer due to the mass loss (LOI), crystallinity, peak changes, increase in surface area, and pore size. The highest removal efficiency recorded was 65.1%, with a corresponding adsorption capacity of 38.1 mg/g for MKG in 50 mg of dosage, 50 mg/L initial concentration, at a temperature of 25°C, contact time of 5 h and optimal pH of 3. The kinetic studies showed that mercury removal increased with the contact time until equilibrium after an hour. The adsorption equilibrium data were best described by Freundlich, whereas the pseudo-second-order model best fitted the adsorption kinetics. This may be indicative that chemisorption controlled the adsorption process. The stability studies of MKG adsorbent within the four reagents revealed that MKG has good stability in water, followed by 10% HCl, 3M NaCl, and 5% NaOH. In contrast, the desorption revealed the MKG represented the highest desorption efficiency in 10% HCl, followed by 3M NaCl, deionized water and 5% NaOH, respectively. The highest desorption efficiency was 96.83% for 10% HCl, followed by 91.83% for 3M NaCl, 82.55% for H2 O, and 50.72% for 5% NaOH. PRACTITIONER POINTS: A low-cost metakaolin-based geopolymer (MKG) was synthesized and applied as an adsorbent for removing Hg(II). The most dominant mechanism involved in the removal process of Hg(II) was chemisorption. The maximum adsorption capacity obtained in this study was 38.1 mg/g. Hg(II) removal is influenced by pH zeta potential and temperature. MKG shows good potential for the effective removal of mercury from modeled wastewater.
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Affiliation(s)
| | - Shen Xu Bao
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan, China
| | - Baba Imoro Musah
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China
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13
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Xu NJ, Li S, Fu YH, Wang ZY, Feng LJ, Wang J. Electrochemical enhancement of high-efficiency wet removal of mercury from flue gas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:29105-29116. [PMID: 34994934 DOI: 10.1007/s11356-021-18462-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Electrochemical wet absorption composite system has an excellent potential to remove Hg0 from flue gas. In this study, ruthenium iridium titanium platinum quaternary composite electrode is used as an anode and titanium electrode is used as the cathode, and KI/I2 absorption solution is introduced into the electrocatalysis system as an electrolyte to form KI/I2 electrochemical catalytic oxidation system. The removal rate of Hg0 in flue gas can be increased to 92.3%. The effects of electrolytic voltage, current, Pt content, I2 concentration, and the ratio of KI/I2 on the removal of Hg0 were discussed. The possible free radicals in the electrochemical cathode, anode, and solution were characterized and tested by XRD, SEM, UV-Vis (detection of H2O2, ·OH, O3), and FTIR (detection of IO3-). Combined with experimental data and theoretical derivation, the mechanism of Hg0 removal from flue gas by electrochemical catalytic oxidation alloy formation wet absorption combined process was studied. The results show that the combined process, which is a promising technology can not only improve the removal efficiency of Hg0, but also realize the resource recovery of Hg0 and I2, and provide a feasibility study for the subsequent regeneration of KI/I2 absorption solution.
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Affiliation(s)
- Nai-Jiao Xu
- School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang, 550000, China
- Guizhou Normal University National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province, Guiyang, 550000, China
| | - Sen Li
- School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang, 550000, China.
- Guizhou Normal University National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province, Guiyang, 550000, China.
- Jiangsu Hydroxyl Source Environment and Energy Technology Co., Ltd, Taizhou, 225300, China.
| | - Yu-Hong Fu
- School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang, 550000, China
- Guizhou Normal University National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province, Guiyang, 550000, China
| | - Zhao-Yang Wang
- College of Earth and Environment Sciences, Lanzhou, 730000, China
| | - Li-Juan Feng
- School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang, 550000, China
- Guizhou Normal University National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province, Guiyang, 550000, China
| | - Ji Wang
- School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang, 550000, China
- Guizhou Normal University National Key Laboratory Breeding Base of Karst Mountain Ecological Environment in Guizhou Province, Guiyang, 550000, China
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14
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Assessment of Natural Zeolite Clinoptilolite for Remediation of Mercury-Contaminated Environment. Processes (Basel) 2022. [DOI: 10.3390/pr10040639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The soil at ancient roasting sites in the surroundings of the Idrija mine (Slovenia) is highly contaminated with mercury. To assess the impact of mercury on groundwater by infiltration and find an eco-friendly remediation method, the leaching of mercury from the soil containing 1347 mg Hg/kg, followed by sorption of the total leached mercury on cost-effective natural zeolite (NZ) clinoptilolite, was performed. The leaching of soil in ultrapure water of pHo = 3.00–11.46 after 24 h resulted in the total leached mercury concentration in the range 0.33–17.43 µg/L. Much higher concentrations (136.9–488.0 µg/L) were determined after the first few hours of leaching and were high above the maximum permissible level in water for human consumption. The NZ showed very good sorption of the total leached mercury, with a maximum removal efficiency of 94.2%. The leaching of mercury in presence of the NZ resulted in a significant decrease of the total leached mercury (1.9–20.3 µg/L compared to 12.8–42.2 µg/L), with removal efficiencies up to 90.5%, indicating immobilization of mercury species. The NZ has a great potential for economically viable remediation of mercury-contaminated environment. However, efforts should be made in the further study of mercury leachability to reduce the mercury concentration in water to acceptable levels.
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15
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Zhang Y, Zhang Y, Qu R, Geng X, Kong X, Sun C, Ji C, Wang Y. Ag-coordinated self-assembly of aramid nanofiber-silver nanoparticle composite beads for selective mercury removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120147] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Jose A, Porel M. Backbone and side chain-linker tunability among dithiocarbamate, ester and amide in sequence-defined oligomers: Synthesis and structure-property-function relationship. Polym Chem 2022. [DOI: 10.1039/d1py01586a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural diversity and tunable properties achieved by the defined monomeric sequence are the trademarks of a sequence-defined polymer. Herein, we report a modular synthetic platform where, in addition to the...
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17
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Wang G, Yan T, Shen J, Zhang J, Zhang D. Capacitive Removal of Fluoride Ions via Creating Multiple Capture Sites in a Modulatory Heterostructure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:11979-11986. [PMID: 34427438 DOI: 10.1021/acs.est.1c03228] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluoride pollution has become a major concern because of its adverse effects on human health. However, the removal capacity of defluorination agents in traditional methods is far from satisfactory. Herein, capacitive removal of F- ions via creating multiple capture sites in a modulatory heterostructure has been originally demonstrated. The heterostructure of uniformly dispersed Al2O3 coating on hollow porous nitrogen-doped carbon frameworks was precisely synthesized by atomic layer deposition. An exceptional F- ion removal efficiency at 1.2 V (95.8 and 92.9% in 5 and 10 mg/L F- solutions, respectively) could be finally achieved, with a good regeneration ability after 20 consecutive defluorination cycles. Furthermore, we investigated the removal mechanisms of F- ions by in situ Raman, in situ X-ray diffraction, and ex situ X-ray photoelectron spectroscopy measurements. The promotional removal capacity was realized by the multiple capture sites of the reversible conversion of Al-F species and the insertion of F- ions into the carbon skeleton. This work offers an important new pathway and deep understanding for efficient removal of F- ions from wastewater.
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Affiliation(s)
- Guizhi Wang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Tingting Yan
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Junjie Shen
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K
| | - Jianping Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
| | - Dengsong Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, Shanghai University, No.99 Shangda Road, Shanghai 200444, China
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18
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Wang X, Zhang Z, Sun R, Xie H, Yao L. High-efficiency removal of low-concentration Hg(II) from aqueous solution by bentonite nanocomposite: Batch and fixed-bed column adsorption study. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1818781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Xiaohuan Wang
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincal Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, College of Chemistry and Pharmaceutical Engineering, College of Agricultural Engineering, Nanyang Normal University, Nanyang, P.R. China
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, P.R. China
| | - Zhifeng Zhang
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincal Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, College of Chemistry and Pharmaceutical Engineering, College of Agricultural Engineering, Nanyang Normal University, Nanyang, P.R. China
| | - Ruzhong Sun
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincal Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, College of Chemistry and Pharmaceutical Engineering, College of Agricultural Engineering, Nanyang Normal University, Nanyang, P.R. China
| | - Haiquan Xie
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincal Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, College of Chemistry and Pharmaceutical Engineering, College of Agricultural Engineering, Nanyang Normal University, Nanyang, P.R. China
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, Henan Provincal Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, College of Chemistry and Pharmaceutical Engineering, College of Agricultural Engineering, Nanyang Normal University, Nanyang, P.R. China
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Jaafar A, Platas-Iglesias C, Bilbeisi RA. Thiosemicarbazone modified zeolitic imidazolate framework (TSC-ZIF) for mercury(ii) removal from water. RSC Adv 2021; 11:16192-16199. [PMID: 35479125 PMCID: PMC9030954 DOI: 10.1039/d1ra02025k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/20/2021] [Indexed: 01/08/2023] Open
Abstract
Zeolitic imidazolate frameworks (ZIF-8), and their derivatives, have been drawing increasing attention due to their thermal and chemical stability. The remarkable stability of ZIF-8 in aqueous and high pH environments renders it an ideal candidate for the removal of heavy metals from wastewater. In this study, we present the preparation of novel aldehyde-based zeolitic imidazolate frameworks (Ald-ZIF) through the integration of mixed-linkers: 2-methylimidazole (MIM) and imidazole-4-carbaldehyde (AldIM). The prepared Ald-ZIFs were post-synthetically modified with bisthiosemicarbazide (Bisthio) and thiosemicarbazide (Thio) groups, incorporating thiosemicarbazone (TSC) functionalities to the core of the framework. This modification results in the formation of TSC-functionalized ZIF derivatives (TSC-ZIFs). Thiosemicarbazones are versatile metal chelators, hence, adsorption properties of TSC-ZIFs for the removal of mercury(ii) from water were explored. Removal of mercury(ii) from homoionic aqueous solutions, binary and tertiary systems in competition with lead(ii) and cadmium(ii) under ambient conditions and neutral pH are reported in this study. MIM3.5:Thio1:Zn improved the removal efficiency of mercury(ii) from water, up to 97% in two hours, with an adsorption capacity of 1667 mg g-1. Desorption of mercury(ii) from MIM3.5:Thio1:Zn was achieved under acidic conditions, regenerating MIM3.5:Thio1:Zn for five cycles of mercury(ii) removal. TSC-ZIF derivatives, designed and developed here, represent a new class of dynamically functionalized adsorption material displaying the advantages of simplicity, efficiency, and reusability.
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Affiliation(s)
- Amani Jaafar
- American University of Beirut (AUB), Department of Civil and Environmental Engineering Riad El Solh Beirut 1107-2020 Lebanon
| | - Carlos Platas-Iglesias
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Facultade de Ciencias, Universidade da Coruña 15071 A Coruña Galicia Spain
| | - Rana A Bilbeisi
- American University of Beirut (AUB), Department of Civil and Environmental Engineering Riad El Solh Beirut 1107-2020 Lebanon
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20
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Alam P, Leung NL, Zhang J, Kwok RT, Lam JW, Tang BZ. AIE-based luminescence probes for metal ion detection. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213693] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Jose A, Nanjan P, Porel M. Sequence-defined oligomer as a modular platform for selective sub-picomolar detection and removal of Hg 2+. Polym Chem 2021. [DOI: 10.1039/d1py00642h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A modular synthetic platform for selective sensing and removal of Hg2+ was developed.
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Affiliation(s)
- Anna Jose
- Discipline of Chemistry, Indian Institute of Technology Palakkad, Kerala-678577, India
| | - Pandurangan Nanjan
- Discipline of Chemistry, Indian Institute of Technology Palakkad, Kerala-678577, India
| | - Mintu Porel
- Discipline of Chemistry, Indian Institute of Technology Palakkad, Kerala-678577, India
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22
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Al-Yaari M, Saleh TA, Saber O. Removal of mercury from polluted water by a novel composite of polymer carbon nanofiber: kinetic, isotherm, and thermodynamic studies. RSC Adv 2020; 11:380-389. [PMID: 35423048 PMCID: PMC8690942 DOI: 10.1039/d0ra08882j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/15/2020] [Indexed: 01/10/2023] Open
Abstract
This work aims at the synthesis of a polymer of poly-trimesoyl chloride and polyethyleneimine grafted on carbon fibers (PCF) derived from palm. The obtained PCF was characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) for its structural properties. The obtained PCF was then evaluated for the removal of mercury (Hg(ii)) from aqueous solutions using batch adsorption studies at four different temperatures (298, 308, 318, and 328 K). The experimental parameters such as initial concentration, pH, dosage, and contact time were optimized on the mercury adsorption. The percentage removal was 100% with an adsorbent dosage of 100 mg L−1 at a pH between 5 and 7 and temperature of 298 K and thus kinetic, isotherm, and thermodynamic studies were performed under these conditions. By the Langmuir adsorption isotherm, the maximum adsorption capacity of Hg(ii) by PCF was 19.2 mg g−1. In addition, results fit the pseudo-second-order model, with R2 > 0.99, to describe the adsorption kinetic mechanism. The adsorption process is spontaneous with an endothermic nature under the studied conditions. This work aims at the synthesis of a polymer of poly-trimesoyl chloride and polyethyleneimine grafted on carbon fibers (PCF) derived from palm to remove mercury (ii) from aqueous solutions using batch adsorption studies at different temperatures.![]()
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Affiliation(s)
- Mohammad Al-Yaari
- Chemical Engineering Department, King Faisal University P.O. Box 380 Al-Ahsa 31982 Saudi Arabia
| | - Tawfik A Saleh
- Department of Chemistry, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Osama Saber
- Department of Physics, College of Science, King Faisal University P.O. Box 400 Al-Ahsa 31982 Saudi Arabia
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23
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Candeago R, Kim K, Vapnik H, Cotty S, Aubin M, Berensmeier S, Kushima A, Su X. Semiconducting Polymer Interfaces for Electrochemically Assisted Mercury Remediation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49713-49722. [PMID: 33079513 DOI: 10.1021/acsami.0c15570] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanostructured polymer interfaces can play a key role in addressing urgent challenges in water purification and advanced separations. Conventional technologies for mercury remediation often necessitate large energetic inputs, produce significant secondary waste, or when electrochemical, lead to strong irreversibility. Here, we propose the reversible, electrochemical capture and release of mercury, by modulating interfacial mercury deposition through a sulfur-containing, semiconducting redox polymer. Electrodeposition/stripping of mercury was carried out with a nanostructured poly(3-hexylthiophene-2,5-diyl)-carbon nanotube composite electrode, coated on titanium (P3HT-CNT/Ti). During electrochemical release, mercury was reversibly stripped in a non-acid electrolyte with 12-fold higher release kinetics compared to nonfunctionalized electrodes. In situ optical microscopy confirmed the rapid, reversible nature of the electrodeposition/stripping process with P3HT-CNT/Ti, indicating the key role of redox processes in mediating the mercury phase transition. The polymer-functionalized system exhibited high mercury removal efficiencies (>97%) in real wastewater matrices while bringing the final mercury concentrations down to <2 μg L-1. Moreover, an energy consumption analysis highlighted a 3-fold increase in efficiency with P3HT-CNT/Ti compared to titanium. Our study demonstrates the effectiveness of semiconducting redox polymers for reversible mercury deposition and points to future applications in mediating electrochemical stripping for various environmental applications.
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Affiliation(s)
- Riccardo Candeago
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Kwiyong Kim
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Haley Vapnik
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Stephen Cotty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Megan Aubin
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - Sonja Berensmeier
- Bioseparation Engineering Group, Department of Mechanical Engineering, Technical University of Munich, Boltzmanstrasse 15, Garching 85748, Germany
| | - Akihiro Kushima
- Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - Xiao Su
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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24
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Analytical methods for mercury speciation, detection, and measurement in water, oil, and gas. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116016] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Yang Z, Wang S, Li H, Yang J, Zhao J, Qu W, Shih K. Density Functional Theory Study of Elemental Mercury Immobilization on CuSe(001) Surface: Reaction Pathway and Effect of Typical Flue Gas Components. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02287] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zequn Yang
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China
| | - Shengcai Wang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan 410083, China
| | - Hailong Li
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jianping Yang
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Jiexia Zhao
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Wenqi Qu
- School of Energy Science and Engineering, Central South University, Changsha, Hunan 410083, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Hong Kong, China
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26
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Wang L, Xu H, Qiu Y, Liu X, Huang W, Yan N, Qu Z. Utilization of Ag nanoparticles anchored in covalent organic frameworks for mercury removal from acidic waste water. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121824. [PMID: 31843400 DOI: 10.1016/j.jhazmat.2019.121824] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/20/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Metal nanoparticles (NPs) have high reaction rate and atom utilization with respect to pollutants in aqueous environments. However, the aggregation and instability in acidic solution limit their practical applications. Mercury removed from acidic solution are still a big problem. In this study, we used a tunable porous covalent organic framework (COF) material as a support for in situ growth of Ag NPs via a one-step solution infiltration method, to enhance the spatial dispersion of NPs and their stability in acidic solution, and for the first time studying the mercury adsorption performance. More importantly, the Ag NPs@COF composite exhibited high removal rate (99 %), ultrahigh Ag atom utilization (150 %), high selectivity and stability, and reusability for Hg(II) removal from acidic aqueous solutions. Meantime, through common characterizations and density functional theory calculations verifying the microscopic adsorption process, we found COF material played an important role in the entire purification process because it provided some electrons to Hg(II) ions via Ag NPs, finally generating an amalgam. Therefore, the present work not only provides a COF-supported Ag NPs material for Hg(II) ions removal from acidic waste water but also opens a new field of design of functionalized COFs material for applications in environmental pollutions control.
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Affiliation(s)
- Longlong Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Haomiao Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yixiang Qiu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaoshuang Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wenjun Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Naiqiang Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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27
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Bengtsson MKO, Tunsu C, Wickman B. Decontamination of Mercury-Containing Aqueous Streams by Electrochemical Alloy Formation on Copper. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b01513] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mattias K. O. Bengtsson
- Department of Physics, Chemical Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Cristian Tunsu
- Department of Chemistry and Chemical Engineering, Nuclear Chemistry and Industrial Materials Recycling, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Björn Wickman
- Department of Physics, Chemical Physics, Chalmers University of Technology, 41296 Gothenburg, Sweden
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