1
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Antunes GC, Malgaretti P, Harting J. Turning catalytically active pores into active pumps. J Chem Phys 2023; 159:134903. [PMID: 37787144 DOI: 10.1063/5.0160414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/07/2023] [Indexed: 10/04/2023] Open
Abstract
We develop a semi-analytical model of self-diffusioosmotic transport in active pores, which includes advective transport and the inverse chemical reaction that consumes solute. In previous work [Antunes et al., Phys. Rev. Lett. 129, 188003 (2022)], we have demonstrated the existence of a spontaneous symmetry breaking in fore-aft symmetric pores that enables them to function as a micropump. We now show that this pumping transition is controlled by three timescales. Two timescales characterize advective and diffusive transport. The third timescale corresponds to how long a solute molecule resides in the pore before being consumed. Introducing asymmetry to the pore (either via the shape or the catalytic coating) reveals a second type of advection-enabled transition. In asymmetric pores, the flow rate exhibits discontinuous jumps and hysteresis loops upon tuning the parameters that control the asymmetry. This work demonstrates the interconnected roles of shape and catalytic patterning in the dynamics of active pores and shows how to design a pump for optimum performance.
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Affiliation(s)
- G C Antunes
- Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK-11), Forschungszentrum Jülich, Cauer Str. 1, 91058 Erlangen, Germany
| | - P Malgaretti
- Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK-11), Forschungszentrum Jülich, Cauer Str. 1, 91058 Erlangen, Germany
| | - J Harting
- Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK-11), Forschungszentrum Jülich, Cauer Str. 1, 91058 Erlangen, Germany
- Department Chemie- und Bioingenieurwesen und Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Fürther Straße 248, 90429 Nürnberg, Germany
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2
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Peng S, Ma Z, Ma J, Han Z, Wang H, Wang B, Zhao F, Li G. Fabrication of γ-Al 2O 3 Nanoarrays on Aluminum Foam Assisted by Hydroxide for Monolith Catalysts. ACS OMEGA 2023; 8:1643-1651. [PMID: 36643468 PMCID: PMC9835627 DOI: 10.1021/acsomega.2c07237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Heat distribution and good adhesion of the washcoat on monolith catalysts are critical to improving catalytic activity and long-term stability. Compared with cordierite, metal foam presents a high thermal conductivity coefficient. Also, the availability of "washcoat" in situ grown on metal substrates opens the door to eliminating the problem of coating peeling. Generally, hydrothermal or thermal methods are used for the fabrication of in situ grown washcoat on metal substrates. In this research, the aluminum foam monolith vertically aligned Al2O3 nanowire array is successfully prepared at ambient temperature in an alkaline solution for the first time. Furthermore, the Pt-loaded Al2O3 nanowire array (0.5 gPt/L monolith) is applied to C2H4 degradation. The catalyst converts 90% C2H4 at 147 °C with a gas hourly space velocity (GHSV) of 20,000 h-1. And a little decrease (1%) is observed in catalytic activity, even in 15 vol % water vapors. The catalysts show good thermal stability and water resistance property over 36 h at 300 °C. Above all, this study presents a simple way of in situ growth of washcoat on metal-substrate monolith with potentially scaled manufacturing. And the monolith catalyst shows good catalytic performance on C2H4, which can be applied for volatile organic compound treatment.
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Affiliation(s)
- Shengpan Peng
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Ziran Ma
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Jing Ma
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Zhihua Han
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Hongyan Wang
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Baodong Wang
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Feng Zhao
- Institute
of Process Engineering, Chinese Academy of Sciences, 1#, North 2nd Street, Beijing 100190, China
| | - Ge Li
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
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Guan X, Yuan X, Zhao Y, Wang H, Wang H, Bai J, Li Y. Application of functionalized layered double hydroxides for heavy metal removal: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155693. [PMID: 35526616 DOI: 10.1016/j.scitotenv.2022.155693] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/22/2022] [Accepted: 04/30/2022] [Indexed: 06/14/2023]
Abstract
Layered double hydroxides (LDHs) are ionic laminar composites composed of positively charged brucite-like layers with an interlayered region containing charged compensating anions and solvation molecules. Such functional LDHs materials present a strong potential for heavy metal treatment especially for wastewater and soil, due to the large surface area and layered structure. This paper started with the background of techniques for heavy metals treatment and then discussed the potential environmental toxic effects, feasibility, stability of LDH composites. The preparation strategies of LDHs composites, and their application were summarized, followed by main mechanisms involving chelation, complexation, surface precipitation, ion exchange. This work also presented the potential environmental toxic effects, feasibility, stability of LDHs composites, reuse of waste liquid and the ratio adjustment of M2+ and N3+ for LDHs synthesis. While most efforts focused on improving the absorption capacity of LDHs by composites construction, ignoring the toxicity effects and detailed mechanism investigation. Based on a thorough review of the latest development, the challenges and perspectives would be proposed, offering promising insights on environmental purification via LDHs based materials.
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Affiliation(s)
- Xian Guan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; School of Civil and Environmental, Hunan University of Science and Engineering, Yongzhou 425199, PR China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
| | - Yanlan Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Hou Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Hui Wang
- Department of Chemical Engineering, University College London, London WC1E 7JE, UK.
| | - Jing Bai
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
| | - Ying Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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4
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Zn–Al Layered Double Hydroxides Synthesized on Aluminum Foams for Fluoride Removal from Water. Processes (Basel) 2021. [DOI: 10.3390/pr9122109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Fluoride excess in water represents an environmental issue and a risk for human health since it can cause several diseases, such as fluorosis, osteoporosis, and damage of the nervous system. Layered double hydroxides (LDHs) can be exploited to remove this contaminant from water by taking advantage of their high ion-exchange capability. LDHs are generally mixed with polluted water in the form of powders, which then cause the problem of uneasy separation of the contaminated LDH sludge from the purified liquid. In this work, Zn–Al LDH films were directly grown in situ on aluminum foams that acted both as the reactant and substrate. This method enabled the removal of fluoride ions by simple immersion, with ensuing withdrawal of the foam from the de-contaminated water. Different LDH synthesis methods and aluminum foam types were investigated to improve the adsorption process. The contact time, initial fluoride concentration, adsorbent dosage, and pH were studied as the parameters that affect the fluoride adsorption capacity and efficiency. The highest absorption efficiency of approximately 70% was obtained by using two separate growth methods after four hours, and it effectively reduced the fluoride concentration from 3 mg/L to 1.1 mg/L, which is below the threshold value set by WHO for drinking water.
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Andersen ABA, Henriksen C, Wang Q, Ravnsbæk DB, Hansen LP, Nielsen UG. Synthesis and Thermal Degradation of MAl 4(OH) 12SO 4·3H 2O with M = Co 2+, Ni 2+, Cu 2+, and Zn 2. Inorg Chem 2021; 60:16700-16712. [PMID: 34669389 DOI: 10.1021/acs.inorgchem.1c02579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis and thermal degradation of MAl4(OH)12SO4·3H2O layered double hydroxides with M = Co2+, Ni2+, Cu2+, and Zn2+ ("MAl4-LDH") were investigated by inductively coupled plasma-optical emission spectroscopy, thermogravimetric analysis, powder X-ray diffraction, Rietveld refinement, scanning electron microscopy, scanning tunnel electron microscopy, energy-dispersive X-ray spectroscopy, and solid-state 1H and 27Al NMR spectroscopy. Following extensive synthesis optimization, phase pure CoAl4- and NiAl4-LDH were obtained, whereas 10-12% unreacted bayerite (Al(OH)3) remained for the CuAl4-LDH. The optimum synthesis conditions are hydrothermal treatment at 120 °C for 14 days (NiAl4-LDH only 9 days) with MSO4(aq) concentrations of 1.4-2.8, 0.7-0.8, and 0.08 M for the CoAl4-, NiAl4-, and CuAl4-LDH, respectively. A pH ≈ 2 for the metal sulfate solutions is required to prevent the formation of byproducts, which were Ni(OH)2 and Cu3(SO4)(OH)4 for NiAl4- and CuAl4-LDH, respectively. The thermal degradation of the three MAl4-LDH and ZnAl4-LDH in a nitrogen atmosphere proceeds in three steps: (i) dehydration and dehydroxylation between 200 and 600 °C, (ii) loss of sulfate between 600 and 900 °C, and (iii) formation of the end products at 900-1200 °C. For CoAl4-LDH (ZnAl4-LDH), these are α-Al2O3 and CoAl2O4 (ZnAl2O4) spinel. For NiAl4-LDH, a spinel-like NiAl4O7 phase forms, whereas CuAl4-LDH degrades by a redox reaction yielding a diamagnetic CuAlO2 (delafossite structure) and α-Al2O3.
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Affiliation(s)
- Anders B A Andersen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | - Christian Henriksen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | - Qian Wang
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | - Dorthe Bomholdt Ravnsbæk
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
| | | | - Ulla Gro Nielsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark
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6
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Li K, He S, Wang L, Guan S, Zhou S, Xu B. Electron Donor-Acceptor Effect-Induced Organic/Inorganic Nanohybrids with Low Energy Gap for Highly Efficient Photothermal Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17920-17930. [PMID: 33827214 DOI: 10.1021/acsami.1c00554] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
For the design and optimization of near-infrared photothermal nanohybrids, tailoring the energy gap of nanohybrids plays a crucial role in attaining a satisfactory photothermal therapeutic efficacy for cancer and remains a challenge. Herein, we report an electron donor-acceptor effect-induced organic/inorganic nanohybrid with a low energy gap (denoted as ICG/Ag/LDH) by the in situ deposition of Ag nanoparticles onto the CoAl-LDH surface, followed by the coupling of ICG. A combination study verifies that the supported Ag nanoparticles as the electron donor (D) push electrons into the conjugated system of ICG by the electronic interaction between ICG and Ag, while OH groups of LDHs as the electron acceptor (A) pull electrons from the conjugated system of ICG by hydrogen bonding (N···H-O). This induces the formation of the D-A conjugated π-system and has a strong influence on the π-conjugated system of ICG, thus leading to a prominent decrease toward the energy gap and correspondingly an ultra-long redshift (∼115 nm). The resulting ICG/Ag/LDHs show an enhanced photothermal conversion efficiency (∼45.5%) at 808 nm laser exposure, which is ∼1.6 times larger than that of ICG (∼28.4%). Such a high photothermal performance is attributed to the fact that ICG/Ag/LDHs possess a D-π-A hybrid structure and a resulting lower energy gap, thus effectively promoting nonradiative transitions and leading to enhancement of the photothermal effect. Both in vitro and in vivo results confirm the good biocompatible properties and capability of the ICG/Ag/LDHs for NIR-triggered cancer treatment. This research demonstrates a successful paradigm for the rational design and preparation of new nanohybrids through the modulation of electron donor-acceptor effect, which offers a new avenue to achieve efficient phototherapeutic agent for improving the cancer therapeutic outcomes.
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Affiliation(s)
- Kunle Li
- School of Light Industry, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing 100048, P. R. China
| | - Shan He
- School of Light Industry, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing 100048, P. R. China
| | - Li Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials. Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Beijing 100190, P. R. China
| | - Shanyue Guan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials. Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Beijing 100190, P. R. China
| | - Shuyun Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials. Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Beijing 100190, P. R. China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, 11 Fucheng Road, Haidian District, Beijing 100048, P. R. China
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7
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Bezerra BGP, Bieseki L, de Mello MIS, da Silva DR, Rodella CB, Pergher S. Memory Effect on a LDH/zeolite A Composite: An XRD In Situ Study. MATERIALS 2021; 14:ma14092102. [PMID: 33919393 PMCID: PMC8122364 DOI: 10.3390/ma14092102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
In this memory effect study, hydrotalcite-type compounds in the lamellar double hydroxide-like (LDH)/zeolite A composite material were analyzed using X-Ray Diffration XRD) in situ experiments. Three samples were analyzed: Al,Mg-LDH, Al,Mg-LDH/ZA composite, and a physical mixture (50/50 wt%) of zeolite A and Al,Mg-LDH. The Al,Mg-LDH sample was treated at 500 °C in an O2 atmosphere and subsequently rehydrated. The Al,Mg-LDH/ZA composites had three treatments: one was performed at 300 °C in a He atmosphere, and two treatments were performed with an O2 atmosphere at 300 and 500 °C. In the physical mixture, two treatments were carried out under O2 flow at 500 °C and under He flow at 300 °C. Both went through the rehydration process. All samples were also analyzed by energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The results show that the LDH phase in the Al,Mg-LDH/ZA compounds has memory effects, and thus, the compound can be calcined and rehydrated. For the LDH in the composite, the best heat treatment system is a temperature of 300 °C in an inert atmosphere.
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Affiliation(s)
- Breno G. P. Bezerra
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Lindiane Bieseki
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Mariele I. S. de Mello
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Djalma R. da Silva
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
| | - Cristiane B. Rodella
- Brazilian Synchrotron Laboratory (LNLS), Brazilian Research Center of Materials and Energy (CNPEM), Campinas 13083-100, SP, Brazil;
| | - Sibele Pergher
- Molecular Sieves Laboratory LABPEMOL, Chemistry Institute, Federal University of Rio Grande do Norte UFRN, Natal 59078-970, RN, Brazil; (B.G.P.B.); (L.B.); (M.I.S.d.M.); (D.R.d.S.)
- Correspondence: ; Tel.: +55-84-991936083
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8
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Wu H, Zhang W, Zhang H, Pan Y, Yang X, Pan Z, Yu X, Wang D. Preparation of the novel g-C3N4 and porous polyimide supported hydrotalcite-like compounds materials for water organic contaminants removal. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125517] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Varga G, Somosi Z, Kónya Z, Kukovecz Á, Pálinkó I, Szilagyi I. A colloid chemistry route for the preparation of hierarchically ordered mesoporous layered double hydroxides using surfactants as sacrificial templates. J Colloid Interface Sci 2020; 581:928-938. [PMID: 32956912 DOI: 10.1016/j.jcis.2020.08.118] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/19/2020] [Accepted: 08/28/2020] [Indexed: 12/22/2022]
Abstract
An efficient synthetic route was developed to prepare hierarchically ordered mesoporous layered double hydroxide (LDH) materials. Sodium dodecyl sulfate (SDS) was used as a sacrificial template to tune the interfacial properties of the LDH materials during the synthetic process. The SDS dose was optimized to obtain stable dispersions of the SDS-LDH composites, which were calcined, then rehydrated to prepare the desired LDH structures. Results of various characterization studies revealed a clear relationship between the colloidal stability of the SDS-LDH precursors and the structural features of the final materials, which was entirely SDS-free. A comparison to the reference LDH prepared by the traditional co-precipitation-calcination-rehydration method in the absence of SDS shed light on a remarkable increase in the specific surface area (one of the highest within the previously reported LDH materials) and pore volume as well as on the formation of a beneficial pore size distribution. As a proof of concept, the mesoporous LDH was applied as adsorbent for removal of nitrate and dichromate anions from aqueous samples, and excellent efficiency was observed in both sorption capacity and recyclability. These results make the obtained LDH a promising candidate as adsorbent in various industrial and environmental processes, wherever the use of mesoporous and organic content-free materials is required.
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Affiliation(s)
- Gábor Varga
- Materials and Solution Structure Research Group, Department of Organic Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - Zoltán Somosi
- MTA-SZTE Lendület Biocolloids Research Group, Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Szeged, Hungary
| | - Zoltán Kónya
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Hungary; Department of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - Ákos Kukovecz
- Department of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - István Pálinkó
- Materials and Solution Structure Research Group, Department of Organic Chemistry, University of Szeged, H-6720 Szeged, Hungary
| | - Istvan Szilagyi
- MTA-SZTE Lendület Biocolloids Research Group, Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Szeged, Hungary.
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Niu Q, Zheng J, Liu L, Xu J, Alsulami H, Amin Kutbi M, Zhang M. Nanostructured MnO 2 nanosheets grown on nickel foam: an efficient and readily recyclable 3D artificial oxidase for the colorimetric detection of ascorbic acid. NEW J CHEM 2020. [DOI: 10.1039/d0nj01909g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
.An efficient and readily recyclable 3D artificial oxidase (NF@MnO2) for the colorimetric detection of ascorbic acid was well constructed with nickel foam as the substrate.
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Affiliation(s)
- Qian Niu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Jing Zheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Libin Liu
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology (Shandong Academy of Sciences)
- Jinan 250353
- China
| | - Jingli Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
| | - Hamed Alsulami
- Department of Mathematics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Marwan Amin Kutbi
- Department of Mathematics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science
- Shanghai 201620
- P. R. China
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11
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Synergistic catalysis of Cu+/Cu0 for efficient and selective N-methylation of nitroarenes with para-formaldehyde. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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12
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Sun Y, Gao X, Yang N, Tantai X, Xiao X, Jiang B, Zhang L. Morphology-Controlled Synthesis of Three-Dimensional Hierarchical Flowerlike Mg–Al Layered Double Hydroxides with Enhanced Catalytic Activity for Transesterification. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00703] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yongli Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xiang Gao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Na Yang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaowei Tantai
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoming Xiao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Bin Jiang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Luhong Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
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13
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Zhao Y, Liu S, Zhang B, Zhou J, Xie W, Li H. One-Step Synthesis of Mesoporous Chlorine-Doped Carbonated Cobalt Hydroxide Nanowires for High-Performance Supercapacitors Electrode. NANOSCALE RESEARCH LETTERS 2018; 13:415. [PMID: 30588553 PMCID: PMC6306375 DOI: 10.1186/s11671-018-2791-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
Self-stabilized and well-defined chlorine-doped carbonated cobalt hydroxide nanowires have been obtained as a binder-free electrode via a facile method. The Co material has a unique well-defined needle-like structure, composed of highly aligned monomer with the diameter of about 3-10 nm and numerous surface pores, which makes it have potential for high-performance electrochemical capacitors. The test results show the directly acquired Co-ClNWs(NiE) electrode in three-electrode system can reach the specific capacity of more than 2150 F/g under the current density of 1 A/g, accompanied by a good cycling stability of 94.3% capacitance retention after 500 cycles, and exhibits a high energy density of 41.8 W h/kg at the power density of 1280.7 W/kg when using it as the positive electrode of an asymmetric supercapacitor. After making a comparison of the current material with the conventional electrodes, we can find that a better electrochemical performance can be achieved with a more convenient one-step method. Therefore, we, in this work, may provide a new type of manufacturing concept for future electrode treatment.
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Affiliation(s)
- Yang Zhao
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Shaobo Liu
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Baihui Zhang
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Jianfei Zhou
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Wenke Xie
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Hongjian Li
- School of Physics and Electronics, Central South University, Changsha, 410083 China
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14
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Yu G, Hu F, Huo H, Ding W, Peng L. Probing local structure of paramagnetic Ni-Al layered double hydroxides with solid-state 2H NMR spectroscopy. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.05.055] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Du Y, Liu X, Wu X, Cheng Q, Ci C, Huang W. Tunable Fabrication of NiAl‐LDHs Containing Acid Activity Sites as Green Catalyst for Acetalization of Furfural to Furfural Diethyl Acetal. ChemistrySelect 2018. [DOI: 10.1002/slct.201800302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yali Du
- College of Chemistry and Chemical EngineeringJinzhong University 199 Wenhua street, Yuci District, Jinzhong, Shanxi China 030619
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024 Fax: +86-351-6018528
| | - Xuezhen Liu
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024 Fax: +86-351-6018528
| | - Xu Wu
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024 Fax: +86-351-6018528
| | - Qiangqiang Cheng
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024 Fax: +86-351-6018528
| | - Chao Ci
- College of Chemistry and Chemical EngineeringTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024 Fax: +86-351-6018528
| | - Wei Huang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi ProvinceTaiyuan University of Technology 79 Yingze West Street, Wanbailin District, Taiyuan, Shanxi China 030024
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16
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Li Y, Tian C, Liu W, Xu S, Xu Y, Cui R, Lin Z. Carbon Cloth Supported Nano-Mg(OH) 2 for the Enrichment and Recovery of Rare Earth Element Eu(III) From Aqueous Solution. Front Chem 2018; 6:118. [PMID: 29721492 PMCID: PMC5915470 DOI: 10.3389/fchem.2018.00118] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 03/30/2018] [Indexed: 12/04/2022] Open
Abstract
Nano-Mg(OH)2 is attracting great attention as adsorbent for pre-concentration and recovery of rare earth elements (REEs) from low-concentration solution, due to its superior removal efficiency for REEs and environmental friendliness. However, the nanoparticles also cause some severe problems during application, including aggregation, blockage in fixed-bed column, as well as the difficulties in separation and reuse. Herein, in order to avoid the mentioned problems, a carbon cloth (CC) supported nano-Mg(OH)2 (nano-Mg(OH)2@CC) was synthesized by electrodeposition. The X-ray diffraction and scanning electron microscopy analysis demonstrated that the interlaced nano-sheet of Mg(OH)2 grew firmly and uniformly on the surface of carbon cloth fibers. Batch adsorption experiments of Eu(III) indicated that the nano-Mg(OH)2@CC composite maintained the excellent adsorption performance of nano-Mg(OH)2 toward Eu(III). After adsorption, the Eu containing composite was calcined under nitrogen atmosphere. The content of Eu2O3 in the calcined material was as high as 99.66%. Fixed-bed column experiments indicated that no blockage for Mg(OH)2@CC composite was observed during the treatment, while the complete blockage of occurred to nano-Mg(OH)2 at an effluent volume of 240 mL. Moreover, the removal efficiency of Mg(OH)2@CC was still higher than 90% until 4,200 mL of effluent volume. This work provides a promising method for feasible application of nanoadsorbents in fixed-bed process to recycle low-concentration REEs from wastewater.
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Affiliation(s)
- Yinong Li
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Chen Tian
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Weizhen Liu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Si Xu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Yunyun Xu
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Rongxin Cui
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Zhang Lin
- The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), School of Environment and Energy, South China University of Technology, Guangzhou, China
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17
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Xue L, Lü Z, Cheng Y, Sun X, Lin H, Xiao X, Liu X, Zhuo S. Three-dimensional layered double hydroxide membranes: fabrication technique, growth mechanism, and enhanced photocatalytic activity. Chem Commun (Camb) 2018; 54:8494-8497. [DOI: 10.1039/c8cc04162h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel three-dimensional ZnAl–LDH/AAO and NiAl–LDH/AAO membranes using porous anodic aluminum oxide (AAO) templates as a substrate and an Al3+ source were successfully fabricated via a simple precipitant-free in situ growth technique.
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Affiliation(s)
- Li Xue
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Zhipeng Lü
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Yingzhi Cheng
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Xiuyu Sun
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Hongtao Lin
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
| | - Xiaoling Xiao
- College of Materials Science and Opto-Electronic Technology
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Xiangfeng Liu
- College of Materials Science and Opto-Electronic Technology
- University of Chinese Academy of Sciences
- Beijing 100049
- China
| | - Shuping Zhuo
- School of Chemistry and Chemical Engineering
- Shandong University of Technology
- Zibo 255049
- China
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18
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Bharali D, Deka RC. Preferential adsorption of various anionic and cationic dyes from aqueous solution over ternary CuMgAl layered double hydroxide. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.060] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Wang X, Zhu X, Meng X. Preparation of a Mg/Al/Fe layered supramolecular compound and application for removal of Cr(vi) from laboratory wastewater. RSC Adv 2017. [DOI: 10.1039/c7ra04646d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Herein, a Mg/Al/Fe layered supramolecular compound (Mg/Al/Fe-LDH) was fabricatedviaa co-precipitation method with a Mg/Al/Fe mixed solution and used to remove Cr(vi) in laboratory wastewater.
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Affiliation(s)
- Xuejin Wang
- College of Materials and Chemistry & Chemical Engineering
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Xiaping Zhu
- College of Materials and Chemistry & Chemical Engineering
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Xingrui Meng
- College of Materials and Chemistry & Chemical Engineering
- Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions
- Chengdu University of Technology
- Chengdu 610059
- China
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20
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Ye J, Cheng B, Wageh S, Al-Ghamdi AA, Yu J. Flexible Mg–Al layered double hydroxide supported Pt on Al foil for use in room-temperature catalytic decomposition of formaldehyde. RSC Adv 2016. [DOI: 10.1039/c6ra02569b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Flexible and bendable Mg–Al layered double hydroxide supported Pt catalysts fabricated and used in room-temperature catalytic decomposition of formaldehyde.
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Affiliation(s)
- Jiawei Ye
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
| | - S. Wageh
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Ahmed A. Al-Ghamdi
- Department of Physics
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- China
- Department of Physics
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21
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Liu X, Tian W, Kong X, Jiang M, Sun X, Lei X. Selective removal of thiosulfate from thiocyanate-containing water by a three-dimensional structured adsorbent: a calcined NiAl-layered double hydroxide film. RSC Adv 2015. [DOI: 10.1039/c5ra14127c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
NiAl-layered double hydroxide (NiAl-LDH) platelets were uniformly grown on a porous Ni foam substrate by a facile in situ hydrothermal method.
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Affiliation(s)
- Xiaohua Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Weiliang Tian
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xianggui Kong
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Meihong Jiang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xiaodong Lei
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
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22
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Abolghasemi MM, Yousefi V, Amirshaghaghi A. Preparation and evaluation of a layered double hydroxide film on a nanoporous anodic aluminum oxide/aluminum wire as a highly thermal-resistant solid-phase microextraction fiber. NEW J CHEM 2015. [DOI: 10.1039/c4nj01998a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hierarchical layered double hydroxide framework on a nonporous anodic aluminum oxide/aluminum wire was used as a solid phase microextraction fiber for separation and determination of phenolic compounds.
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Affiliation(s)
| | - Vahid Yousefi
- Department of Chemistry
- Faculty of Science
- University of Maragheh
- Maragheh
- Iran
| | - Ahmad Amirshaghaghi
- Department of Bioengineering
- School of Engineering and Applied Sciences
- University of Pennsylvania
- Philadelphia
- USA
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23
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Li C, Wei M, Evans DG, Duan X. Layered double hydroxide-based nanomaterials as highly efficient catalysts and adsorbents. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:4469-4486. [PMID: 25137218 DOI: 10.1002/smll.201401464] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 07/07/2014] [Indexed: 06/03/2023]
Abstract
Layered double hydroxides (LDHs) are a class of anion clays consisting of brucite-like host layers and interlayer anions, which have attracted increasing interest in the fields of catalysis/adsorption. By virtue of the versatility in composition, morphology, and architecture of LDH materials, as well as their unique structural properties (intercalation, topological transformation, and self-assembly with other functional materials), LDHs display great potential in the design and fabrication of nanomaterials applied in photocatalysis, heterogeneous catalysis, and adsorption/separation processes. Taking advantage of the structural merits and various control synthesis strategies of LDHs, the active center structure (e.g., crystal facets, defects, geometric and electronic states, etc.) and macro-nano morphology can be facilely manipulated for specific catalytic/adsorbent processes with largely enhanced performances. In this review, the latest advancements in the design and preparation of LDH-based functional nanomaterials for sustainable development in catalysis and adsorption are summarized.
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Affiliation(s)
- Changming Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
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24
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Song X, Wu Y. Simultaneous Adsorption of Chromium (VI) and Phosphate by Calcined Mg-Al-CO3Layered Double Hydroxides. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.6.1817] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Yu G, Shen M, Wang M, Shen L, Dong W, Tang S, Zhao L, Qi Z, Xue N, Guo X, Ding W, Hu B, Peng L. Probing Local Structure of Layered Double Hydroxides with (1)H Solid-State NMR Spectroscopy on Deuterated Samples. J Phys Chem Lett 2014; 5:363-369. [PMID: 26270712 DOI: 10.1021/jz402510a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
By using a simple and efficient deuteration process, (2)H has been successfully introduced into layered double hydroxides (LDHs). Due to significantly less (1)H-(1)H homonuclear dipolar coupling, high-resolution (1)H solid-state NMR spectra can now be obtained conveniently at medium to low spinning speed to extract the information of cation ordering in LDHs. Furthermore, we show that double-resonance experiments can be applied easily to investigate internuclear proximities and test possible cation-ordered superstructure models. This approach can be readily extended to LDHs with different compositions to explore the local structure and the key interactions between the cations in the layer and interlayer anions.
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Affiliation(s)
- Guiyun Yu
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
- ‡School of Chemical and Biological Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | | | - Meng Wang
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Li Shen
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wenhao Dong
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Sheng Tang
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Li Zhao
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Zhe Qi
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Nianhua Xue
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Xuefeng Guo
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Weiping Ding
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | | | - Luming Peng
- †Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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26
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Selvam T, Inayat A, Schwieger W. Reactivity and applications of layered silicates and layered double hydroxides. Dalton Trans 2014; 43:10365-87. [DOI: 10.1039/c4dt00573b] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Lv X, Chen Z, Wang Y, Huang F, Lin Z. Use of high-pressure CO2 for concentrating CrVI from electroplating wastewater by Mg-Al layered double hydroxide. ACS APPLIED MATERIALS & INTERFACES 2013; 5:11271-11275. [PMID: 24083820 DOI: 10.1021/am4035009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The desorption of Cr(VI) from Cr(VI)-adsorbed layered double hydroxide (Cr(VI)-LDH) and the recycling of LDH adsorbent are the bottlenecks that limit the practical application of LDH in treating Cr(VI)-containing industrial wastewater. Given the strong affinity of LDH for CO2, we studied desorption and enrichment of Cr(VI) from Cr(VI)-LDH as well as recycling of LDH in the presence of high-pressure CO2. Results showed that Cr(VI) solution with concentration of 500 mg/L could be enriched more than 20 times in each adsorption-desorption cycle. The regenerated LDH maintained the layer structure and the sheets as revealed by XRD and TEM patterns. FT-IR data showed CO2 formed HCO3(-) at high pressure. The transformation from CO2 to HCO3(-) followed by the anion-exchange with CrO4(2-) was the critical factor for Cr(VI) desorption and LDH regeneration. A pilot-scale experiment was carried out with 20 L Cr(VI)-containing electroplating wastewater. The concentration of the desorbed Cr(VI) solution could reach up to 10000 mg/L, which could be used in electroplating after appropriate adjustment. The main advantages of this method are high concentration of Cr(VI), direct reuse of enriched Cr(VI), and efficient regeneration of LDH adsorbent. This method showed promises in recycling Cr(VI) and regenerating LDH in treating industrial wastewater.
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Affiliation(s)
- Xiangying Lv
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, China
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28
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Wang J, Pan K, Giannelis EP, Cao B. Polyacrylonitrile/polyaniline core/shell nanofiber mat for removal of hexavalent chromium from aqueous solution: mechanism and applications. RSC Adv 2013. [DOI: 10.1039/c3ra40616d] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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29
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Zhang T, Li Q, Xiao H, Lu H, Zhou Y. Synthesis of Li–Al Layered Double Hydroxides (LDHs) for Efficient Fluoride Removal. Ind Eng Chem Res 2012. [DOI: 10.1021/ie300863x] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Zhang
- College of Environmental
and Chemical Engineering, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004,
China
- School
of Chemistry
and Chemical Engineering, Jiangsu Optoelectronic Functional Materials
and Engineering Laboratory, Southeast University, Nanjing 210089, China
| | - Qiurong Li
- College of Environmental
and Chemical Engineering, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004,
China
| | - Haiyan Xiao
- College of Environmental
and Chemical Engineering, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004,
China
| | - Hongxiao Lu
- College of Environmental
and Chemical Engineering, Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004,
China
| | - Yuming Zhou
- School
of Chemistry
and Chemical Engineering, Jiangsu Optoelectronic Functional Materials
and Engineering Laboratory, Southeast University, Nanjing 210089, China
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30
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Lei Y, Qian X, Shen J, An X. Integrated Reductive/Adsorptive Detoxification of Cr(VI)-Contaminated Water by Polypyrrole/Cellulose Fiber Composite. Ind Eng Chem Res 2012. [DOI: 10.1021/ie301136g] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Lei
- Key Laboratory of Bio-based Material
Science and Technology
of Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang Province, 150040, People's Republic of China
| | - Xueren Qian
- Key Laboratory of Bio-based Material
Science and Technology
of Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang Province, 150040, People's Republic of China
| | - Jing Shen
- Key Laboratory of Bio-based Material
Science and Technology
of Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang Province, 150040, People's Republic of China
| | - Xianhui An
- Key Laboratory of Bio-based Material
Science and Technology
of Ministry of Education, Northeast Forestry University, Harbin, Heilongjiang Province, 150040, People's Republic of China
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