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Dembaremba TO, Majodina S, Walmsley RS, Ogunlaja AS, Tshentu ZR. Perspectives on strategies for improving ultra-deep desulfurization of liquid fuels through hydrotreatment: Catalyst improvement and feedstock pre-treatment. Front Chem 2022; 10:807225. [PMID: 35936099 PMCID: PMC9354497 DOI: 10.3389/fchem.2022.807225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 06/29/2022] [Indexed: 11/15/2022] Open
Abstract
Reliance on crude oil remains high while the transition to green and renewable sources of fuel is still slow. Developing and strengthening strategies for reducing sulfur emissions from crude oil is therefore imperative and makes it possible to sustainably meet stringent regulatory sulfur level legislations in end-user liquid fuels (mostly less than 10 ppm). The burden of achieving these ultra-low sulfur levels has been passed to fuel refiners who are battling to achieve ultra-deep desulfurization through conventional hydroprocessing technologies. Removal of refractory sulfur-containing compounds has been cited as the main challenge due to several limitations with the current hydroprocessing catalysts. The inhibitory effects of nitrogen-containing compounds (especially the basic ones) is one of the major concerns. Several advances have been made to develop better strategies for achieving ultra-deep desulfurization and these include: improving hydroprocessing infrastructure, improving hydroprocessing catalysts, having additional steps for removing refractory sulfur-containing compounds and improving the quality of feedstocks. Herein, we provide perspectives that emphasize the importance of further developing hydroprocessing catalysts and pre-treating feedstocks to remove nitrogen-containing compounds prior to hydroprocessing as promising strategies for sustainably achieving ultra-deep hydroprocessing.
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Affiliation(s)
- Tendai O. Dembaremba
- Department of Chemistry, Nelson Mandela University, Gqeberha (Port Elizabeth), South Africa, Nelson Mandela University, Gqeberha, South Africa
- *Correspondence: Tendai O. Dembaremba, ; Siphumelele Majodina, ; Zenixole R. Tshentu,
| | - Siphumelele Majodina
- Department of Chemistry, Nelson Mandela University, Gqeberha (Port Elizabeth), South Africa, Nelson Mandela University, Gqeberha, South Africa
- *Correspondence: Tendai O. Dembaremba, ; Siphumelele Majodina, ; Zenixole R. Tshentu,
| | - Ryan S. Walmsley
- Research and Development Division, Sasol Technology (Pty) Ltd, Sasolburg, South Africa
| | - Adeniyi S. Ogunlaja
- Department of Chemistry, Nelson Mandela University, Gqeberha (Port Elizabeth), South Africa, Nelson Mandela University, Gqeberha, South Africa
| | - Zenixole R. Tshentu
- Department of Chemistry, Nelson Mandela University, Gqeberha (Port Elizabeth), South Africa, Nelson Mandela University, Gqeberha, South Africa
- *Correspondence: Tendai O. Dembaremba, ; Siphumelele Majodina, ; Zenixole R. Tshentu,
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Wang SQ, Mukherjee S, Zaworotko MJ. Spiers Memorial Lecture: Coordination networks that switch between nonporous and porous structures: an emerging class of soft porous crystals. Faraday Discuss 2021; 231:9-50. [PMID: 34318839 DOI: 10.1039/d1fd00037c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Coordination networks (CNs) are a class of (usually) crystalline solids typically comprised of metal ions or cluster nodes linked into 2 or 3 dimensions by organic and/or inorganic linker ligands. Whereas CNs tend to exhibit rigid structures and permanent porosity as exemplified by most metal-organic frameworks, MOFs, there exists a small but growing class of CNs that can undergo extreme, reversible structural transformation(s) when exposed to gases, vapours or liquids. These "soft" or "stimuli-responsive" CNs were introduced two decades ago and are attracting increasing attention thanks to two features: the amenability of CNs to design from first principles, thereby enabling crystal engineering of families of related CNs; and the potential utility of soft CNs for adsorptive storage and separation. A small but growing subset of soft CNs exhibit reversible phase transformations between nonporous (closed) and porous (open) structures. These "switching CNs" are distinguished by stepped sorption isotherms coincident with phase transformation and, perhaps counterintuitively, they can exhibit benchmark properties with respect to working capacity (storage) and selectivity (separation). This review addresses fundamental and applied aspects of switching CNs through surveying their sorption properties, analysing the structural transformations that enable switching, discussing structure-function relationships and presenting design principles for crystal engineering of the next generation of switching CNs.
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Affiliation(s)
- Shi-Qiang Wang
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland.
| | - Soumya Mukherjee
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland. .,Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Michael J Zaworotko
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick V94 T9PX, Republic of Ireland.
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Nalaparaju A, Jiang J. Metal-Organic Frameworks for Liquid Phase Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003143. [PMID: 33717851 PMCID: PMC7927635 DOI: 10.1002/advs.202003143] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/19/2020] [Indexed: 05/10/2023]
Abstract
In the last two decades, metal-organic frameworks (MOFs) have attracted overwhelming attention. With readily tunable structures and functionalities, MOFs offer an unprecedentedly vast degree of design flexibility from enormous number of inorganic and organic building blocks or via postsynthetic modification to produce functional nanoporous materials. A large extent of experimental and computational studies of MOFs have been focused on gas phase applications, particularly the storage of low-carbon footprint energy carriers and the separation of CO2-containing gas mixtures. With progressive success in the synthesis of water- and solvent-resistant MOFs over the past several years, the increasingly active exploration of MOFs has been witnessed for widespread liquid phase applications such as liquid fuel purification, aromatics separation, water treatment, solvent recovery, chemical sensing, chiral separation, drug delivery, biomolecule encapsulation and separation. At this juncture, the recent experimental and computational studies are summarized herein for these multifaceted liquid phase applications to demonstrate the rapid advance in this burgeoning field. The challenges and opportunities moving from laboratory scale towards practical applications are discussed.
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Affiliation(s)
- Anjaiah Nalaparaju
- Department of Chemical and Biomolecular EngineeringNational University of SingaporeSingapore117576Singapore
| | - Jianwen Jiang
- Department of Chemical and Biomolecular EngineeringNational University of SingaporeSingapore117576Singapore
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Cao N, Wang H, Ban Y, Wang Y, Yang K, Zhou Y, Zhao M, Deng W, Yang W. Tuning of Delicate Host–Guest Interactions in Hydrated MIL‐53 and Functional Variants for Furfural Capture from Aqueous Solution. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Na Cao
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
| | - Honglei Wang
- Institute of Molecular Sciences and Engineering Shandong University Qingdao 266237 P. R. China
| | - Yujie Ban
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Yuecheng Wang
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
| | - Kun Yang
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
| | - Yingwu Zhou
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
| | - Meng Zhao
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
| | - Weiqiao Deng
- Institute of Molecular Sciences and Engineering Shandong University Qingdao 266237 P. R. China
| | - Weishen Yang
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of Chinese Academy of Sciences 19A Yuquan Road Beijing 100039 China
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Cao N, Wang H, Ban Y, Wang Y, Yang K, Zhou Y, Zhao M, Deng W, Yang W. Tuning of Delicate Host-Guest Interactions in Hydrated MIL-53 and Functional Variants for Furfural Capture from Aqueous Solution. Angew Chem Int Ed Engl 2021; 60:1629-1634. [PMID: 33021016 DOI: 10.1002/anie.202011678] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/24/2020] [Indexed: 11/12/2022]
Abstract
Capture of high-boiling-point furfural from diluted aqueous solution is a critical but challenging step in sustainable bio-refinery processes, but conventional separation methods such as distillation and liquid-liquid extraction requires prohibitive energy consumption. We report control over the microenvironment of hydrated MIL-53 and isoreticular variants with diversified functional terephthalic acid linkers for the purpose of preferential binding of furfural through delicate host-guest interactions. Methyl-bounded MIL-53 with improved binding energy in the hydrated form results in highly efficient capture ratio (ca. 98 %) in the extremely low concentration of furfural solution (0.5-3 wt %) and 100 % furfural specificity over xylose. The distinct hydrogen bonding sites and multiple Van de Wall interactions for furfural adsorption was testified by computational modeling. Furthermore, the recovery ratio of furfural reaches ca. 93 % in desorption.
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Affiliation(s)
- Na Cao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
| | - Honglei Wang
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266237, P. R. China
| | - Yujie Ban
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China
| | - Yuecheng Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
| | - Kun Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
| | - Yingwu Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
| | - Meng Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
| | - Weiqiao Deng
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266237, P. R. China
| | - Weishen Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, P. R. China.,University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100039, China
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Bereyhi M, Zare‐Dorabei R, Mosavi SH. Microwave‐assisted Synthesis of CuCl‐MIL‐47 and Application to Adsorptive Denitrogenation of Model Fuel: Response Surface Methodology. ChemistrySelect 2020. [DOI: 10.1002/slct.202003873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mohammad Bereyhi
- Research Laboratory of Spectrometry & Micro and Nano Extraction Department of Chemistry Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Rouholah Zare‐Dorabei
- Research Laboratory of Spectrometry & Micro and Nano Extraction Department of Chemistry Iran University of Science and Technology Tehran 16846-13114 Iran
| | - Seyed Hossein Mosavi
- Research Laboratory of Spectrometry & Micro and Nano Extraction Department of Chemistry Iran University of Science and Technology Tehran 16846-13114 Iran
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Metal-Organic-Framework FeBDC-Derived Fe 3O 4 for Non-Enzymatic Electrochemical Detection of Glucose. SENSORS 2020; 20:s20174891. [PMID: 32872490 PMCID: PMC7506652 DOI: 10.3390/s20174891] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/20/2020] [Accepted: 08/26/2020] [Indexed: 12/19/2022]
Abstract
Present-day science indicates that developing sensors with excellent sensitivity and selectivity for detecting early signs of diseases is highly desirable. Electrochemical sensors offer a method for detecting diseases that are simpler, faster, and more accurate than conventional laboratory analysis methods. Primarily, exploiting non-noble-metal nanomaterials with excellent conductivity and large surface area is still an area of active research due to its highly sensitive and selective catalysts for electrochemical detection in enzyme-free sensors. In this research, we successfully fabricate Metal-Organic Framework (MOF) FeBDC-derived Fe3O4 for non-enzymatic electrochemical detection of glucose. FeBDC synthesis was carried out using the solvothermal method. FeCl2.4H2O and Benzene-1,4-dicarboxylic acid (H2BDC) are used as precursors to form FeBDC. The materials were further characterized utilizing X-ray Powder Diffraction (XRD), Scanning Electron Microscopy (SEM), and Fourier-Transform Infrared Spectroscopy (FTIR). The resulting MOF yields good crystallinity and micro-rod like morphology. Electrochemical properties were tested using Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV) with a 0.1 M of Phosphate Buffer Saline (PBS pH 7.4) solution as the supporting electrolyte. The measurement results show the reduction and oxidation peaks in the CV curve of FeBDC, as well as Fe3O4. Pyrolysis of FeBDC to Fe3O4 increases the peak of oxidation and reduction currents. The Fe3O4 sample obtained has a sensitivity of 4.67 µA mM−1.cm−2, a linear range between 0.0 to 9.0 mM, and a glucose detection limit of 15.70 µM.
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Functionalized Dynamic Metal-Organic Frameworks as Smart Switches for Sensing and Adsorption Applications. Top Curr Chem (Cham) 2019; 378:5. [PMID: 31823121 DOI: 10.1007/s41061-019-0271-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 11/23/2019] [Indexed: 10/25/2022]
Abstract
Over the past two decades, metal-organic frameworks (MOFs) with flexible structures or dynamic behavior have shown great potential as functional materials in many fields. This paper presents a review of these dynamic and functional MOFs, which can undergo controllable and reversible transformation, with regard to their application as smart switches. Trigger conditions, which include physical/chemical stimuli (e.g., guest molecules, light, temperature, pressure), are also discussed. Research methods for investigating the dynamic processes and mechanisms involving experimental characterization and computational modeling are briefly mentioned as well. The emphasis is on the aspects of the design and functionalization of dynamic MOFs. The pre-design of metal nodes, organic linkers, and topology, as well as post-modification of components, increases the possibility of obtaining functionalized dynamic materials. Recent advances with regard to potential applications for dynamic frameworks as smart switches for adsorption and sensing are also reviewed.
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Xia Q, Wang H, Huang B, Yuan X, Zhang J, Zhang J, Jiang L, Xiong T, Zeng G. State-of-the-Art Advances and Challenges of Iron-Based Metal Organic Frameworks from Attractive Features, Synthesis to Multifunctional Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1803088. [PMID: 30548176 DOI: 10.1002/smll.201803088] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/05/2018] [Indexed: 06/09/2023]
Abstract
Metal organic frameworks (MOFs), as an original kind of organic-inorganic porous material, are constructed with metal centers and organic linkers via a coordination complexation reaction. Among uncountable MOF materials, iron-containing metal organic frameworks (Fe-MOFs) have excellent potential in practical applications owing to their many fascinating properties, such as diverse structure types, low toxicity, preferable stability, and tailored functionality. Here, recent research progresses of Fe-MOFs in attractive features, synthesis, and multifunctional applications are described. Fe-MOFs with porosity and tailored functionality are discussed according to the design of building blocks. Four types of synthetic methods including solvothermal, hydrothermal, microwave, and dry gel conversion synthesis are illustrated. Finally, the applications of Fe-MOFs in Li-ion batteries, sensors, gas storage, separation in gas and liquid phases, and catalysis are elucidated, focusing on the mechanism. The aim is to provide prospects for extending Fe-MOFs in more practical applications.
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Affiliation(s)
- Qi Xia
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Hou Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Binbin Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Jingjing Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Jin Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Ting Xiong
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, P. R. China
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Millange F, Walton RI. MIL-53 and its Isoreticular Analogues: a Review of the Chemistry and Structure of a Prototypical Flexible Metal-Organic Framework. Isr J Chem 2018. [DOI: 10.1002/ijch.201800084] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Franck Millange
- Département de Chimie; Université de Versailles-St-Quentin-en-Yvelines; 45 Avenue des États-Unis 78035 Versailles cedex France
| | - Richard I. Walton
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
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She H, Ma X, Chang G. Highly efficient and selective removal of N-heterocyclic aromatic contaminants from liquid fuels in a Ag(I) functionalized metal-organic framework: Contribution of multiple interaction sites. J Colloid Interface Sci 2018; 518:149-155. [DOI: 10.1016/j.jcis.2018.01.114] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/18/2018] [Accepted: 01/31/2018] [Indexed: 11/24/2022]
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Khan NA, Jhung SH. Adsorptive removal and separation of chemicals with metal-organic frameworks: Contribution of π-complexation. JOURNAL OF HAZARDOUS MATERIALS 2017; 325:198-213. [PMID: 27936401 DOI: 10.1016/j.jhazmat.2016.11.070] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/24/2016] [Accepted: 11/25/2016] [Indexed: 05/26/2023]
Abstract
Efficient removal and separation of chemicals from the environment has become a vital issue from a biological and environmental point of view. Currently, adsorptive removal/separation is one of the most promising approaches for cleaning purposes. Selective adsorption/removal of various sulfur- and nitrogen-containing compounds, olefins, and π-electron-rich gases via π-complex formation between an adsorbent and adsorbate molecules is very competitive. Porous metal-organic framework (MOF) materials are very promising in the adsorption/separation of various liquids and gases owing to their distinct characteristics. This review summarizes the literature on the adsorptive removal/separation of various π-electron-rich compounds mainly from fuel and gases using MOF materials containing metal ions that are active for π-complexation. Details of the π-complexation, including mechanism, pros/cons, applications, and efficient ways to form the complex, are discussed systematically. For in-depth understanding, molecular orbital calculations regarding charge transfer between the π-complexing species are also explained in a separate section. From this review, readers will gain an understanding of π-complexation for adsorption and separation, especially with MOFs, to develop new insight for future research.
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Affiliation(s)
- Nazmul Abedin Khan
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung Hwa Jhung
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea.
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Ahmed I, Jhung SH. Remarkable adsorptive removal of nitrogen-containing compounds from a model fuel by a graphene oxide/MIL-101 composite through a combined effect of improved porosity and hydrogen bonding. JOURNAL OF HAZARDOUS MATERIALS 2016; 314:318-325. [PMID: 27152881 DOI: 10.1016/j.jhazmat.2016.04.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 06/05/2023]
Abstract
A composite was prepared by combining a highly porous metal-organic framework (MOF), MIL-101 (Cr-benzenedicarboxylate), and graphene oxide (GnO). The porosity of the composite increased appreciably by the addition of GnO up to a specific amount in the MOF, though further increases in the quantity of GnO was detrimental to porosity. The improved porosity of the GnO/MIL-101 composite was utilized for adsorptive denitrogenation (ADN) of a model fuel where indole (IND) and quinoline (QUI) were used as nitrogen-containing compounds (NCCs). It was found that both IND and QUI showed improved adsorption on the composite compared with pristine MIL-101 or GnO due to the improved porosity of the composite. Interestingly, the improvement in adsorption of IND was much higher than the quantity estimated for the porosity. Importantly, GnO/MIL-101 showed the highest adsorption capacities for NCCs. Irrespective of the studied solvents and co-presence of IND and QUI, the composite adsorbent performed ADN most effectively. This remarkable improvement is explained by the additional mechanism of hydrogen bonding between the surface functional groups of GnO and the hydrogen attached to the nitrogen atom of IND. This hydrogen bonding mechanism is also supported by the results of the adsorption of pyrrole and methylpyrrole. On the other hand, QUI does not show hydrogen-bonding capability, and therefore, its enhanced adsorption originates from only the increased porosity of the adsorbents.
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Affiliation(s)
- Imteaz Ahmed
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Sung Hwa Jhung
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 702-701, Republic of Korea.
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Kobalz M, Lincke J, Kobalz K, Erhart O, Bergmann J, Lässig D, Lange M, Möllmer J, Gläser R, Staudt R, Krautscheid H. Paddle Wheel Based Triazolyl Isophthalate MOFs: Impact of Linker Modification on Crystal Structure and Gas Sorption Properties. Inorg Chem 2016; 55:3030-9. [PMID: 26950305 DOI: 10.1021/acs.inorgchem.5b02921] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Syntheses and comprehensive characterization of two closely related series of isomorphous metal-organic frameworks (MOFs) based on triazolyl isophthalate linkers with the general formula ∞(3)[M2(R(1)-R(2)-trz-ia)2] (M = Cu, Zn) are presented. Using solvothermal synthesis and synthesis of microcrystalline materials on the gram scale by refluxing a solution of the starting materials, 11 MOFs are readily available for a systematic investigation of structure-property relationships. The networks of the two series are assigned to rutile (rtl) (1-4) and α-PbO2 (apo) (5-9) topology, respectively. Due to the orientation of the triazole substituents toward the cavities, both the pore volume and the pore diameter can be adjusted by choice of the alkyl substituents. Compounds 1-9 exhibit pronounced microporosity with calculated porosities of 31-53% and show thermal stability up to 390 °C as confirmed by simultaneous thermal analysis. Systematic investigation of adsorption properties by CO2 (298 K) and N2 (77 K) adsorption studies reveal remarkable network flexibility induced by alkyl substituents on the linker. Fine-tuning of the gate opening pressure and of the hysteresis shape is possible by adjusting the substitution pattern and by choice of the metal ion.
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Affiliation(s)
- Merten Kobalz
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Jörg Lincke
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Karolin Kobalz
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Oliver Erhart
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Jens Bergmann
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Daniel Lässig
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
| | - Marcus Lange
- Institut für Nichtklassische Chemie e.V. , Permoserstraße 15, D-04318 Leipzig, Germany
| | - Jens Möllmer
- Institut für Nichtklassische Chemie e.V. , Permoserstraße 15, D-04318 Leipzig, Germany
| | - Roger Gläser
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany.,Institut für Nichtklassische Chemie e.V. , Permoserstraße 15, D-04318 Leipzig, Germany
| | - Reiner Staudt
- Fakultät Maschinenbau und Verfahrenstechnik, Hochschule Offenburg , Badstraße 24, D-77652 Offenburg, Germany
| | - Harald Krautscheid
- Fakultät für Chemie und Mineralogie, Universität Leipzig , Johannisallee 29, D-04103 Leipzig, Germany
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15
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Ahmed I, Jhung SH. Adsorptive desulfurization and denitrogenation using metal-organic frameworks. JOURNAL OF HAZARDOUS MATERIALS 2016; 301:259-276. [PMID: 26368800 DOI: 10.1016/j.jhazmat.2015.08.045] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 08/17/2015] [Accepted: 08/23/2015] [Indexed: 06/05/2023]
Abstract
With the increasing worldwide demand for energy, utilization of fossil fuels is increasing proportionally. Additionally, new and unconventional energy sources are also being utilized at an increasing rate day-by-day. These sources, along with some industrial processes, result in the exposal of several sulfur- and nitrogen-containing compounds (SCCs and NCCs, respectively) to the environment, and the exposure is one of the greatest environmental threats in the recent years. Although, several methods were established for the removal of these pollutants during the last few decades, recent advancements in adsorptive desulfurization and denitrogenation (ADS and ADN, respectively) with metal-organic frameworks (MOFs) make this the most promising and remarkable method. Therefore, many research groups are currently involved with ADS and ADN with MOFs, and the results are improving gradually by modifying the MOF adsorbents according to several specific adsorption mechanisms. In this review, ADS and ADN studies are thoroughly discussed for both liquid-phase and gas-phase adsorption. The MOF modification procedures, which are important for improved adsorption, are also described. To improve the knowledge among the scientific community, it is very important to understand the detailed chemistry and mechanism involved in a chemical process, which also creates the possibility and pathway for further developments in research and applications. Therefore, the mechanisms related to the adsorption procedures are also discussed in detail. From this review, it can be expected that the scientific community will obtain an understanding of the current state of ADS and ADN, their importance, and some encouragement and insight to take the research knowledge base to a higher level.
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Affiliation(s)
- Imteaz Ahmed
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Sung Hwa Jhung
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 702-701, Republic of Korea.
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16
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Seo PW, Ahmed I, Jhung SH. Adsorption of indole and quinoline from a model fuel on functionalized MIL-101: effects of H-bonding and coordination. Phys Chem Chem Phys 2016; 18:14787-94. [DOI: 10.1039/c6cp02001a] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Adsorptive denitrogenation was carried out with functionalized metal–organic frameworks in order to understand plausible adsorption mechanisms.
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Affiliation(s)
- Pill Won Seo
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu 702-701
- Korea
| | - Imteaz Ahmed
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu 702-701
- Korea
| | - Sung Hwa Jhung
- Department of Chemistry and Green-Nano Materials Research Center
- Kyungpook National University
- Daegu 702-701
- Korea
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17
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Van de Voorde B, Bueken B, Denayer J, De Vos D. Adsorptive separation on metal-organic frameworks in the liquid phase. Chem Soc Rev 2015; 43:5766-88. [PMID: 24647892 DOI: 10.1039/c4cs00006d] [Citation(s) in RCA: 524] [Impact Index Per Article: 58.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
While much attention of the MOF community has been devoted to adsorption and purification of gases, there is now also a vast body of data on the capability of MOFs to separate and purify liquid mixtures. Initial studies focused on separation of petrochemicals in apolar backgrounds, but the attention has moved now to the separation of complex, e.g. chiral compounds, and to the isolation of biobased compounds from aqueous media. We here give an overview of most of the existing literature, with an accent on separation mechanisms and structure-selectivity relationships.
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Affiliation(s)
- Ben Van de Voorde
- Centre for Surface Chemistry and Catalysis, KU Leuven, Arenbergpark 23, B-3001 Leuven, Belgium.
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18
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Van de Voorde B, Hezinová M, Lannoeye J, Vandekerkhove A, Marszalek B, Gil B, Beurroies I, Nachtigall P, De Vos D. Adsorptive desulfurization with CPO-27/MOF-74: an experimental and computational investigation. Phys Chem Chem Phys 2015; 17:10759-66. [DOI: 10.1039/c5cp01063b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
By combining experimental adsorption isotherms, microcalorimetric data, infrared spectroscopy and quantum chemical calculations the adsorption behaviour of the CPO-27/MOF-74 series (Ni, Co, Mg, Cu, and Zn) in the desulfurization of fuels is evaluated.
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Affiliation(s)
- Ben Van de Voorde
- Centre for Surface Chemistry and Catalysis (COK)
- KU Leuven
- B-3001 Leuven
- Belgium
| | - Markéta Hezinová
- Department of Physical and Macromolecular Chemistry
- Faculty of Science
- Charles University in Prague
- 128 43 Prague
- Czech Republic
| | - Jeroen Lannoeye
- Centre for Surface Chemistry and Catalysis (COK)
- KU Leuven
- B-3001 Leuven
- Belgium
| | | | | | - Barbara Gil
- Faculty of Chemistry
- Jagiellonian University
- 30-060 Kraków
- Poland
| | - Isabelle Beurroies
- CNRS
- Lab. Chimie Provence
- Madirel
- Université Aix-Marseille
- F-13397 Marseille 20
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry
- Faculty of Science
- Charles University in Prague
- 128 43 Prague
- Czech Republic
| | - Dirk De Vos
- Centre for Surface Chemistry and Catalysis (COK)
- KU Leuven
- B-3001 Leuven
- Belgium
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19
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Xiao Y, Han T, Xiao G, Ying Y, Huang H, Yang Q, Liu D, Zhong C. Highly selective adsorption and separation of aniline/phenol from aqueous solutions by microporous MIL-53(Al): a combined experimental and computational study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:12229-12235. [PMID: 25251810 DOI: 10.1021/la5030795] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Experimental measurements have been combined with molecular simulations to investigate the adsorption and separation of aniline/phenol mixtures from aqueous solutions by the aluminum terephthalate MIL-53. The results show that the framework flexibility of this material plays a crucial role in the adsorption process and thus can greatly enhance the separation of the aniline/phenol mixture from their solutions. Compared with the conventional adsorbents, MIL-53(Al) shows the best performance for such systems of interest, from the points of view of both the adsorption capacities and the selectivities for aniline. The findings obtained in this work may facilitate more investigations in connection with the application of flexible nanoporous materials for the separation of organic compounds from liquid-phase environments.
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Affiliation(s)
- Yuanlong Xiao
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Chaoyang, Beijing 100029, China
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20
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Venkatesh V, Pachfule P, Banerjee R, Verma S. Evolution of an Adenine-Copper Cluster to a Highly Porous Cuboidal Framework: Solution-Phase Ripening and Gas-Adsorption Properties. Chemistry 2014; 20:12262-8. [DOI: 10.1002/chem.201403115] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Indexed: 11/08/2022]
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21
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Schneemann A, Bon V, Schwedler I, Senkovska I, Kaskel S, Fischer RA. Flexible metal–organic frameworks. Chem Soc Rev 2014; 43:6062-96. [DOI: 10.1039/c4cs00101j] [Citation(s) in RCA: 1458] [Impact Index Per Article: 145.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Guo PC, Chen TY, Ren XM, Xiao C, Jin W. Detection of host–guest interactions in clathrates of heterocyclic molecules adsorbed in a porous MOF with Cu2 cluster nodes via vibration spectra and magnetic properties. Dalton Trans 2014; 43:6720-7. [DOI: 10.1039/c4dt00111g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A 3-D MOF Cu2(EBTC)(H2O)2·[G] was used to encapsulate benzopyrrole, benzofuran and benzothiophene molecules. The host–guest interactions were studied via vibration spectra and magnetic susceptibility.
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Affiliation(s)
- Ping-Chun Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing University of Technology
- Nanjing 210009, P. R. China
- College of Science
- Nanjing University of Technology
| | - Tian-Yu Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing University of Technology
- Nanjing 210009, P. R. China
- College of Science
- Nanjing University of Technology
| | - Xiao-Ming Ren
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing University of Technology
- Nanjing 210009, P. R. China
- College of Science
- Nanjing University of Technology
| | - Chen Xiao
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing University of Technology
- Nanjing 210009, P. R. China
- College of Science
- Nanjing University of Technology
| | - Wanqin Jin
- College of Science
- Nanjing University of Technology
- Nanjing 211816, P. R. China
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23
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Munn AS, Clarkson GJ, Walton RI. Distortions of a flexible metal-organic framework from substituted pendant ligands. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2013; 70:11-8. [DOI: 10.1107/s2052520613027224] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 10/03/2013] [Indexed: 11/10/2022]
Abstract
Four new variants of the 1,4-benzenedicarboxylate MIL-53 structure have been prepared for CoIIunder solvothermal conditions and their structures solved and refined from single-crystal X-ray data. All materials contain pendant pyridine-N-oxide ligands that bridge pairs of CoIIatoms in the inorganic backbone of the structureviaO. By the use of the ligands 3-bromopyridine-N-oxide, 4-methoxypyridine-N-oxide, isoquinoline-N-oxide and 4-phenylpyridine-N-oxide, materials are prepared with the same topology but distinct structures. These illustrate how the MIL-53 structure is able to distort to accommodate the bulk of the various substituents on the pyridine ring. The bulkiest pendant ligand, 4-phenylpyridine-N-oxide, results in a distortion of the diamond-shaped channels in an opposite sense to that seen previously in expanded forms of the parent MIL-53 structure. By comparison with published crystal structures for MIL-53 with various occluded guests, the structural distortions that take place to accommodate the pendant ligands are quantified and it is shown how a twisting of the 1,4-benzenedicarboxylate ligand, instead of a hinging about the μ2-carboxylate-metal connection, allows the new structures that are observed.
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24
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Munn AS, Clarkson GJ, Millange F, Dumont Y, Walton RI. M(ii) (M = Mn, Co, Ni) variants of the MIL-53-type structure with pyridine-N-oxide as a co-ligand. CrystEngComm 2013. [DOI: 10.1039/c3ce41268g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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