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Meng Z, Kuang Z, Song R, Fan J, Wu X, Pan C, Lu R, Zhou W, Gao H. Rapid sequential detection of Al 3+ and glyphosate using an "Off-On-Off" fluorescent probe based on salicylate modified layered double hydroxides. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 317:124358. [PMID: 38723462 DOI: 10.1016/j.saa.2024.124358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/01/2024] [Accepted: 04/26/2024] [Indexed: 05/31/2024]
Abstract
A fluorescent probe based on salicylate modified layered double hydroxide (LDH-SA) is presented, enabling the swift sequential detection of Al3+, fosetyl-Al and glyphosate in aqueous environment. The probe was synthesized using a simple co-precipitation procedure, and its properties and synthesis conditions were thoroughly characterized and optimized. A unique "off-on-off" fluorescent response was observed when the probe sequentially interacted with Al3+ and glyphosate, and the detection method based on this phenomenon was established. The limits of detection for Al3+ and glyphosate were determined as 0.03 μmol/L and 0.03 mg/L, respectively, with rapid detection periods of one minute and four minutes. The LDH-SA/Al3+ complex requires Al3+ to generate a chelation-gathered fluorescence effect, which is the mechanism by which it quenches LDH-SA. This is possible due to the inhibition of excited-state intramolecular proton transfer and photoinduced electron transfer processes within LDH-SA after incorporating Al3+. Upon interaction with glyphosate, competitive complexation between glyphosate and Al3+ is initiated, which leads to a recovery of the fluorescence spectrum of LDH-SA and demonstrating the "off-on-off" behavior. An "INHIBIT" logic gate system was devised utilizing the response, indicating potential applications in fluorescence-based devices. Such a rapid, sequential detection capacity is impressive. It attests to the utility of LDH-SA as a probe for Al3+ or glyphosate, and suggests promise for applications in pollutant analysis or environmental monitoring applications.
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Affiliation(s)
- Zilin Meng
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Zichen Kuang
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Rui Song
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Jiaxuan Fan
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Xingyi Wu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Canping Pan
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Wenfeng Zhou
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Yuanmingyuan West Road 2#, Haidian District, Beijing 100193, China.
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Li L, Soyhan I, Warszawik E, van Rijn P. Layered Double Hydroxides: Recent Progress and Promising Perspectives Toward Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306035. [PMID: 38501901 PMCID: PMC11132086 DOI: 10.1002/advs.202306035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Indexed: 03/20/2024]
Abstract
Layered double hydroxides (LDHs) have been widely studied for biomedical applications due to their excellent properties, such as good biocompatibility, degradability, interlayer ion exchangeability, high loading capacity, pH-responsive release, and large specific surface area. Furthermore, the flexibility in the structural composition and ease of surface modification of LDHs makes it possible to develop specifically functionalized LDHs to meet the needs of different applications. In this review, the recent advances of LDHs for biomedical applications, which include LDH-based drug delivery systems, LDHs for cancer diagnosis and therapy, tissue engineering, coatings, functional membranes, and biosensors, are comprehensively discussed. From these various biomedical research fields, it can be seen that there is great potential and possibility for the use of LDHs in biomedical applications. However, at the same time, it must be recognized that the actual clinical translation of LDHs is still very limited. Therefore, the current limitations of related research on LDHs are discussed by combining limited examples of actual clinical translation with requirements for clinical translation of biomaterials. Finally, an outlook on future research related to LDHs is provided.
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Affiliation(s)
- Lei Li
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Irem Soyhan
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Eliza Warszawik
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
| | - Patrick van Rijn
- Department of Biomedical EngineeringUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
- W. J. Kolff Institute for Biomedical Engineering and Materials ScienceUniversity of GroningenUniversity Medical Center GroningenA. Deusinglaan 1Groningen, AV9713The Netherlands
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Li F, Yoshida K, Van Chuc N, Osada M, Abe H. Understanding the role of solvents in bottom-up synthesis of multi-element hydroxides. RSC Adv 2024; 14:75-82. [PMID: 38173604 PMCID: PMC10758770 DOI: 10.1039/d3ra07344k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
Here we report a comparative study on the bottom-up synthesis of multi-element hydroxides composed of Mg, Al, Fe and Zn cations to understand the role of solvents. Two common solvents, water and ethylene glycol, a typical polyol, are used. The polyol-derived MgAlFeZn-OH are nanosheets with homogeneous elemental distribution, while the hydrothermal-derived MgAlFeZn-OH are mixtures of plate-like hydroxide layers and rod-like spinel oxides. The coordinating properties and the high viscosity of the ethylene glycol provide the possibility to mediate the hydrolysis rates and to control the particle growth. The high specific surface area of the polyol-derived multi-element hydroxide nanosheets (352.4 m2 g-1) guarantees them as excellent adsorbents for adsorbing anionic dyes in aqueous solution.
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Affiliation(s)
- Fei Li
- Joining and Welding Research Institute, Osaka University Osaka 5670047 Japan
| | - Kanako Yoshida
- Joining and Welding Research Institute, Osaka University Osaka 5670047 Japan
| | - Nguyen Van Chuc
- Institute of Materials Science, Vietnam Academy of Science and Technology Hanoi Vietnam
| | - Minoru Osada
- Institute of Materials and Systems for Sustainability, Nagoya University Nagoya 4648603 Japan
| | - Hiroya Abe
- Joining and Welding Research Institute, Osaka University Osaka 5670047 Japan
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Szerlauth A, Varga S, Szilagyi I. Molecular Antioxidants Maintain Synergistic Radical Scavenging Activity upon Co-Immobilization on Clay Nanoplatelets. ACS Biomater Sci Eng 2023; 9:5622-5631. [PMID: 37738637 PMCID: PMC10565722 DOI: 10.1021/acsbiomaterials.3c00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/12/2023] [Indexed: 09/24/2023]
Abstract
Unbalanced levels of reactive oxygen species (ROS) result in oxidative stress, affecting both biomedical and industrial processes. Antioxidants can prevent ROS overproduction and thus delay or inhibit their harmful effects. Herein, activities of two molecular antioxidants (gallic acid (GA), a well-known phenolic compound, and nicotinamide adenine dinucleotide (NADH), a vital biological cofactor) were tested individually and in combination to assess possible synergistic, additive, or antagonistic effects in free radical scavenging and in redox capacity assays. GA was a remarkable radical scavenger, and NADH exhibited moderate antioxidant activity, while their combination at different molar ratios led to a synergistic effect since the resulting activity was superior to the sum of the individual GA and NADH activities. Their coimmobilization was performed on the surface of delaminated layered double hydroxide clay nanoplatelets by electrostatic interactions, and the synergistic effect was maintained upon such a heterogenization of these molecular antioxidants. The coimmobilization of GA and NADH expands the range of their potential applications, in which separation of antioxidant additives is important during treatments or manufacturing processes.
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Affiliation(s)
- Adel Szerlauth
- MTA-SZTE Lendület
Biocolloids Research Group, Department of Physical Chemistry and Materials
Science, Interdisciplinary Excellence Centre, University of Szeged, Szeged H-6720, Hungary
| | - Szilárd Varga
- MTA-SZTE Lendület
Biocolloids Research Group, Department of Physical Chemistry and Materials
Science, Interdisciplinary Excellence Centre, University of Szeged, Szeged H-6720, Hungary
| | - Istvan Szilagyi
- MTA-SZTE Lendület
Biocolloids Research Group, Department of Physical Chemistry and Materials
Science, Interdisciplinary Excellence Centre, University of Szeged, Szeged H-6720, Hungary
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5
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Mohan M, Andersen ABA, Mareš J, Jensen ND, Nielsen UG, Vaara J. Unravelling the effect of paramagnetic Ni 2+ on the 13C NMR shift tensor for carbonate in Mg 2-xNi xAl layered double hydroxides by quantum-chemical computations. Phys Chem Chem Phys 2023; 25:24081-24096. [PMID: 37655469 DOI: 10.1039/d3cp03053a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Structural disorder and low crystallinity render it challenging to characterise the atomic-level structure of layered double hydroxides (LDH). We report a novel multi-step, first-principles computational workflow for the analysis of paramagnetic solid-state NMR of complex inorganic systems such as LDH, which are commonly used as catalysts and energy storage materials. A series of 13CO32--labelled Mg2-xNixAl-LDH, x ranging from 0 (Mg2Al-LDH) to 2 (Ni2Al-LDH), features three distinct eigenvalues δ11, δ22 and δ33 of the experimental 13C chemical shift tensor. The δii correlate directly with the concentration of the paramagnetic Ni2+ and span a range of |δ11 - δ33| ≈ 90 ppm at x = 0, increasing to 950 ppm at x = 2. In contrast, the isotropic shift, δiso(13C), only varies by -14 ppm in the series. Detailed insight is obtained by computing (1) the orbital shielding by periodic density-functional theory involving interlayer water, (2) the long-range pseudocontact contribution of the randomly distributed Ni2+ ions in the cation layers (characterised by an ab initio susceptibility tensor) by a lattice sum, and (3) the close-range hyperfine terms using a full first-principles shielding machinery. A pseudohydrogen-terminated two-layer cluster model is used to compute (3), particularly the contact terms. Due to negative spin density contribution at the 13C site arising from the close-by Ni2+ sites, this step is necessary to reach a semiquantitative agreement with experiment. These findings influence future NMR investigations of the formally closed-shell interlayer species within LDH, such as the anions or water. Furthermore, the workflow is applicable to a variety of complex materials.
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Affiliation(s)
- Megha Mohan
- NMR Research Unit, P.O. Box 3000, FI-90014 University of Oulu, Finland.
| | - Anders B A Andersen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense, Denmark.
| | - Jiří Mareš
- NMR Research Unit, P.O. Box 3000, FI-90014 University of Oulu, Finland.
| | - Nicholai Daugaard Jensen
- 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.
| | - Juha Vaara
- NMR Research Unit, P.O. Box 3000, FI-90014 University of Oulu, Finland.
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6
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Islam MS, Mazumder AAM, Sohag MU, Sarkar MMH, Stampfl C, Park J. Growth mechanisms of monolayer hexagonal boron nitride ( h-BN) on metal surfaces: theoretical perspectives. NANOSCALE ADVANCES 2023; 5:4041-4064. [PMID: 37560434 PMCID: PMC10408602 DOI: 10.1039/d3na00382e] [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: 06/02/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023]
Abstract
Two-dimensional hexagonal boron nitride (h-BN) has appeared as a promising material in diverse areas of applications, including as an excellent substrate for graphene devices, deep-ultraviolet emitters, and tunneling barriers, thanks to its outstanding stability, flat surface, and wide-bandgap. However, for achieving such exciting applications, controllable mass synthesis of high-quality and large-scale h-BN is a precondition. The synthesis of h-BN on metal surfaces using chemical vapor deposition (CVD) has been extensively studied, aiming to obtain large-scale and high-quality materials. The atomic-scale growth process, which is a prerequisite for rationally optimizing growth circumstances, is a key topic in these investigations. Although theoretical investigations on h-BN growth mechanisms are expected to reveal numerous new insights and understandings, different growth methods have completely dissimilar mechanisms, making theoretical research extremely challenging. In this article, we have summarized the recent cutting-edge theoretical research on the growth mechanisms of h-BN on different metal substrates. On the frequently utilized Cu substrate, h-BN development was shown to be more challenging than a simple adsorption-dehydrogenation-growth scenario. Controlling the number of surface layers is also an important challenge. Growth on the Ni surface is controlled by precipitation. An unusual reaction-limited aggregation growth behavior has been seen on interfaces having a significant lattice mismatch to h-BN. With intensive theoretical investigations employing advanced simulation approaches, further progress in understanding h-BN growth processes is predicted, paving the way for guided growth protocol design.
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Affiliation(s)
- Md Sherajul Islam
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
- Department of Electrical and Biomedical Engineering, University of Nevada Reno NV 89557 USA
| | | | - Minhaz Uddin Sohag
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
| | - Md Mosarof Hossain Sarkar
- Department of Electrical and Electronic Engineering, Khulna University of Engineering & Technology Khulna 9203 Bangladesh
| | - Catherine Stampfl
- School of Physics, The University of Sydney New South Wales 2006 Australia
| | - Jeongwon Park
- Department of Electrical and Biomedical Engineering, University of Nevada Reno NV 89557 USA
- School of Electrical Engineering and Computer Science, University of Ottawa Ottawa ON K1N 6N5 Canada
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7
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Kumari S, Dalal J, Kumar V, Kumar A, Ohlan A. Emerging Two-Dimensional Materials for Electromagnetic Interference Shielding Application. Int J Mol Sci 2023; 24:12267. [PMID: 37569645 PMCID: PMC10419163 DOI: 10.3390/ijms241512267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Graphene is the first two-dimensional material that becomes the center material in various research areas of material science, chemistry, condensed matter, and engineering due to its advantageous properties, including larger specific area, lower density, outstanding electrical conductivity, and ease of processability. These properties attracted the attention of material researchers that resulted in a large number of publications on EMI shielding in a short time and play a central role in addressing the problems and challenges faced in this modern era of electronics by electromagnetic interference. After the popularity of graphene, the community of material researchers investigated other two-dimensional materials like MXenes, hexagonal boron nitride, black phosphorous, transition metal dichalcogenides, and layered double hydroxides, to additionally enhance the EMI shielding response of materials. The present article conscientiously reviews the current progress in EMI shielding materials in reference to two-dimensional materials and addresses the future challenges and research directions to achieve the goals.
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Affiliation(s)
- Suman Kumari
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Jasvir Dalal
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Vibhor Kumar
- School of Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Anand Kumar
- Department of Physics, Chaudhary Ranbir Singh University, Jind 126102, India
| | - Anil Ohlan
- Department of Physics, Maharishi Dayanand University, Rohtak 124001, India
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8
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Yamamoto O, Nagashima M, Nakata Y, Udagawa E. The Significant Potential of Simonkolleite Powder for Deep Wound Healing under a Moist Environment: In Vivo Histological Evaluation Using a Rat Model. Bioengineering (Basel) 2023; 10:bioengineering10030375. [PMID: 36978766 PMCID: PMC10045562 DOI: 10.3390/bioengineering10030375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/12/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
In the present work, simonkolleite powder consisting of Zn5(OH)8Cl2·H2O composition was proposed as a new candidate material for the healing of deep wounds in a moist environment. The powder was synthesized using a solution process and evaluated for wound-healing effects in rats. The pH value of physiological saline at 37 °C using the simonkolleite powder was 7.27, which was the optimal pH value for keratinocyte and fibroblast proliferation (range: 7.2-8.3). The amount of Zn2+ ions sustainably released from simonkolleite powder into physiological saline was 404 mmol/L below cytotoxic ion concentrations (<500 mmol/L), and the rhombohedral simonkolleite was accordingly converted to monoclinic Zn5(OH)10·2H2O. To evaluate the wound-healing effect of simonkolleite powder, the powder was applied to a full-thickness surgical wound reaching the subcutaneous tissue in the rat's abdomen. The histological analysis of the skin tissues collected after 1, 2, and 4 weeks found that angiogenesis, collagen deposition, and maturation were notedly accelerated due to the Zn2+ ions released from simonkolleite powder. The simonkolleite regenerated collagen close to autologous skin tissue after 4 weeks. The hair follicles, one of the skin appendages, were observed on the regenerative skin in the simonkolleite group at 4 weeks but not in the control group. Therefore, simonkolleite was hypothesized to stimulate the early regeneration of skin tissue in a moist environment, compared with commercial wound dressing material. These results suggested that simonkolleite could offer great potential as new wound dressing material.
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Affiliation(s)
- Osamu Yamamoto
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan
| | - Miki Nagashima
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan
| | - Yoshimi Nakata
- Research Laboratories, JFE Mineral & Alloy Co., Ltd., 1 Niihama-cho, Chuo-ku, Chiba 260-0826, Japan
| | - Etsuro Udagawa
- Research Laboratories, JFE Mineral & Alloy Co., Ltd., 1 Niihama-cho, Chuo-ku, Chiba 260-0826, Japan
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9
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Preparation, characterization, and application of soy protein isolate/Mg–Al layered double hydroxide-based bionanocomposite films. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02702-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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10
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Structural, textural, surface basic and catalytic properties of an aged Mg/Al layered double hydroxide and its calcination products. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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11
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Xie S, Liu M, Zhang X, Yang C, Zhang Y, Qin Y, He C, Dou Y, Gao C, Yuan Y. Zeolite/ZnAl-layer double hydroxides with different Zn/Al ratios and intercalated anions as the substrate of constructed wetlands: synthesis, characterization and purification effect of Hexavalent chromium. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:19814-19827. [PMID: 36242668 DOI: 10.1007/s11356-022-23594-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
The study aimed to synthesize novel zeolite substrates modified with four types of ZnAl-LDHs including Cl-LDHs(1:1), Cl-LDHs(3:1), CO3-LDHs(1:1), and CO3-LDHs(3:1); investigate Cr(VI) removal efficiencies in lab-scale constructed wetlands (CWs); and explore the effect of different Zn/Al ratios and intercalated anions on the removal efficiencies of Cr(VI) by modified zeolite. Different ZnAl-LDHs were prepared by co-precipitation method and coated onto the surface of original zeolite. Field emission scanning electron microscope and energy dispersive spectrometer were used to analyze physicochemical properties of zeolite/ZnAl-LDHs. Obtained results confirmed the successful LDHs-coating modification. The results of both X-ray diffraction and Fourier transform infrared suggested that the typical diffraction peak and functional groups of ZnAl-LDHs were detected in modified zeolites, and the peak of CO32- in CO3-LDHs at 1362 cm-1 was stronger and sharper than Cl-LDHs. It could be demonstrated by above results that the synthesis crystallinity and coating effect of CO3-LDHs was better than Cl-LDHs. Furthermore, it could be found that under the condition of same intercalated anion, LDHs with metal molar ratio of 1:1 had better crystallinity than LDHs with metal molar ratio of 3: 1. Subsequent determination of the removal performance of Cr(VI) by purification experiments revealed that zeolite/Cl-LDHs(3:1) showed the best Cr(VI) removal performance, and the removal rate of Cr(VI) was improved by 32.81% compared with the original zeolite, which suggested that could be an efficient substrate of CWs for Cr(VI) removal. The high crystallinity indicated that the structure of LDHs was stable and it was difficult to remove Cr(VI) by ion exchange. The above explained why the Cr(VI) removal efficiency by zeolite/Cl-LDHs is superior to that by zeolite/CO3-LDHs under the condition of same metal molar ratio. With the increase of metal molar ratio, the charge density of LDHs layers and intercalated anion increased, thus enhancing the electrostatic attraction of LDHs layers to Cr(VI) and the interlayer anion exchange capacity. However, the effect of charge density on Cr(VI) removal efficiency may be greater than crystallinity on removal efficiency, which could be responsible for the fact that zeolite/ZnAl-LDHs(3:1) had better Cr(VI) removal efficiency than zeolite/ZnAl-LDHs(1:1) under the condition of same intercalated anion.
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Affiliation(s)
- Shuqin Xie
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Mingyang Liu
- China Construction Third Engineering Bureau Group Co., Ltd, Wuhan, 430072, China
| | - Xiangling Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China.
- Hainan Research Institute, Wuhan University of Technology, Sanya, 572000, China.
| | - Chao Yang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yueling Zhang
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Yaojun Qin
- School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
| | - Chuntao He
- China Construction Third Engineering Bureau Group Co., Ltd, Wuhan, 430072, China
| | - Yankai Dou
- Office Affairs Center of Changjiang River Administration of Navigational Affairs, Wuhan, 430014, China
| | - Chenguang Gao
- MCC South (Wuhan) Construction Design Consulting Co., Ltd, Wuhan, 430077, China
| | - Ye Yuan
- PowerChina ZhongNan Engineering Corporation Limited, Changsha, 410007, China
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12
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Switchable Nanozyme Activity of Porphyrins Intercalated in Layered Gadolinium Hydroxide. Int J Mol Sci 2022; 23:ijms232315373. [PMID: 36499698 PMCID: PMC9736057 DOI: 10.3390/ijms232315373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
In this study, organo-inorganic nanohybrids LHGd-MTSPP with enzyme-like activity were prepared by in situ intercalation of anionic 5,10,15,20-tetrakis-(4-sulfonatophenyl)porphyrin and its complexes with Zn(II) and Pd(II) (MTSPP, M = 2H, Zn(II) and Pd(II)) into gadolinium layered hydroxide (LHGd). The combination of powder XRD, CHNS analysis, FT-IR, EDX, and TG confirmed the layered structure of the reaction products. The basal interplanar distances in LHGd-MTSPP samples were 22.3-22.6 Å, corresponding to the size of an intercalated tetrapyrrole molecule. According to SEM data, LHGd-MTSPP hybrids consisted of individual lamellar nanoparticles 20-50 nm in thickness. The enzyme-like activity of individual constituents, LHGd-Cl and sulfoporphyrins TSPP, ZnTSPP and PdTSPP, and hybrid LHGd-MTSPP materials, was studied by chemiluminescence analysis using the ABAP/luminol system in phosphate buffer solution. All the individual porphyrins exhibited dose-dependent antioxidant properties with respect to alkylperoxyl radicals at pH 7.4. The intercalation of free base TSPP porphyrin into the LHGd preserved the radical scavenging properties of the product. Conversely, in LHGd-MTSPP samples containing Zn(II) and Pd(II) complexes, the antioxidant properties of the porphyrins changed to dose-dependent prooxidant activity. Thus, an efficient approach to the design and synthesis of advanced LHGd-MTSPP materials with switchable enzyme-like activity was developed.
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Novell Leruth G, Kuznetsova A, Tedim J, Gomes JRB, Galvão TLP. Molecular Dynamics Model to Explore the Initial Stages of Anion Exchange involving Layered Double Hydroxide Particles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4039. [PMID: 36432324 PMCID: PMC9695576 DOI: 10.3390/nano12224039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
A classical molecular dynamics (MD) model of fully unconstrained layered double hydroxide (LDH) particles in aqueous NaCl solution was developed to explore the initial stages of the anion exchange process, a key feature of LDHs for their application in different fields. In particular, this study focuses on the active corrosion protection mechanism, where LDHs are able to entrap aggressive species from the solution while releasing fewer corrosive species or even corrosion inhibitors. With this purpose in mind, it was explored the release kinetics of the delivery of nitrate and 2-mercaptobenzothiazole (MBT, a typical corrosion inhibitor) from layered double hydroxide particles triggered by the presence of aggressive chloride anions in solution. It was shown that the delamination of the cationic layers occurs during the anion exchange process, which is especially evident in the case of MBT-.
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Affiliation(s)
- Gerard Novell Leruth
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Alena Kuznetsova
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- Smallmatek—Small Materials and Technologies Lda., Rua dos Canhas, 3810-075 Aveiro, Portugal
| | - João Tedim
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - José R. B. Gomes
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Tiago L. P. Galvão
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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14
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Costa AL, Monteiro RP, Nunes Barradas PD, Ferreira SCR, Cunha C, Gomes AC, Gonçalves IS, Seixas de Melo JS, Pillinger M. Enhanced thermal and photo-stability of a para-substituted dicumyl ketone intercalated in a layered double hydroxide. Front Chem 2022; 10:1004586. [DOI: 10.3389/fchem.2022.1004586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
A ketodiacid, 4,4′-dicarboxylate-dicumyl ketone (3), has been intercalated into a Zn, Al layered double hydroxide (LDH) by a coprecipitation synthesis strategy. The structure and chemical composition of the resultant hybrid material (LDH-KDA3) were characterized by powder X-ray diffraction (PXRD), FT-IR, FT-Raman and solid-state 13C{1H} NMR spectroscopies, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), and elemental analysis (CHN). PXRD showed that the dicarboxylate guest molecules assembled into a monolayer to give a basal spacing of 18.0 Å. TGA revealed that the organic guest starts to decompose at a significantly higher temperature (ca. 330°C) than that determined for the free ketodiacid (ca. 230°C). Photochemical experiments were performed to probe the photoreactivity of the ketoacid in the crystalline state, in solution, and as a guest embedded within the photochemically-inert LDH host. Irradiation of the bulk crystalline ketoacid results in photodecarbonylation and the exclusive formation of the radical-radical combination product. Solution studies employing the standard myoglobin (Mb) assay for quantification of released CO showed that the ketoacid behaved as a photoactivatable CO-releasing molecule for transfer of CO to heme proteins, although the photoreactivity was low. No photoinduced release of CO was found for the LDH system, indicating that molecular confinement enhanced the photo-stability of the hexasubstituted ketone. To better understand the behavior of 3 under irradiation, a more comprehensive study, involving excitation of this compound in DMSO-d6 followed by 1H NMR, UV-Vis and fluorescence spectroscopy, was undertaken and further rationalized with the help of time-dependent density functional theory (TDDFT) electronic quantum calculations. The photophysical study showed the formation of a less emissive compound (or compounds). New signals in the 1H NMR spectra were attributed to photoproducts obtained via Norrish type I α-cleavage decarbonylation and Norrish type II (followed by CH3 migration) pathways. TDDFT calculations predicted that the formation of a keto-enol system (via a CH3 migration step in the type II pathway) was highly favorable and consistent with the observed spectral data.
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15
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Morcos C, Seron A, Maubec N, Ignatiadis I, Betelu S. Comprehension of the Route for the Synthesis of Co/Fe LDHs via the Method of Coprecipitation with Varying pH. NANOMATERIALS 2022; 12:nano12091570. [PMID: 35564279 PMCID: PMC9103787 DOI: 10.3390/nano12091570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/21/2022] [Accepted: 04/25/2022] [Indexed: 12/24/2022]
Abstract
Co/Fe-based layered double hydroxides (LDHs) are among the most promising materials for electrochemical applications, particularly in the development of energy storage devices, such as electrochemical capacitors. They have also been demonstrated to function as energy conversion catalysts in photoelectrochemical applications for CO2 conversion into valuable chemicals. Understanding the formation mechanisms of such compounds is therefore of prime interest for further controlling the chemical composition, structure, morphology, and/or reactivity of synthesized materials. In this study, a combination of X-ray diffraction, vibrational and absorption spectroscopies, as well as physical and chemical analyses were used to provide deep insight into the coprecipitation formation mechanisms of Co/Fe-based LDHs under high supersaturation conditions. This procedure consists of adding an alkaline aqueous solution (2.80 M NaOH and 0.78 M Na2CO3) into a cationic solution (0.15 M CoII and 0.05 M FeIII) and varying the pH until the desired pH value is reached. Beginning at pH 2, pH increases induce precipitation of FeIII as ferrihydrite, which is the pristine reactional intermediate. From pH > 2, CoII sorption on ferrihydrite promotes a redox reaction between FeIII of ferrihydrite and the sorbed CoII. The crystallinity of the poorly crystalized ferrihydrite progressively decreases with increasing pH. The combination of such a phenomenon with the hydrolysis of both the sorbed CoIII and free CoII generates pristine hydroxylated FeII/CoIII LDHs at pH 7. Above pH 7, free CoII hydrolysis proceeds, which is responsible for the local dissolution of pristine LDHs and their reprecipitation and then 3D organization into CoII4FeII2CoIII2 LDHs. The progressive incorporation of CoII into the LDH structure is accountable for two phenomena: decreased coulombic attraction between the positive surface-charge sites and the interlayer anions and, concomitantly, the relative redox potential evolution of the redox species, such as when FeII is re-oxidized to FeIII, while CoIII is re-reduced to CoII, returning to a CoII6FeIII2 LDH. The nature of the interlamellar species (OH−, HCO3−, CO32− and NO3−) depends on their mobility and the speciation of anions in response to changing pH.
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Affiliation(s)
- Chérif Morcos
- BRGM, French Geological Survey, 3 Avenue Claude Guillemin, CEDEX 02, 45060 Orleans, France; (C.M.); (N.M.); (I.I.)
- LGC, Chemical Engineering Laboratory, University of Toulouse III, 118 Route de Narbonne, CEDEX 09, 31062 Toulouse, France
| | - Alain Seron
- BRGM, French Geological Survey, 3 Avenue Claude Guillemin, CEDEX 02, 45060 Orleans, France; (C.M.); (N.M.); (I.I.)
- Correspondence: (A.S.); (S.B.)
| | - Nicolas Maubec
- BRGM, French Geological Survey, 3 Avenue Claude Guillemin, CEDEX 02, 45060 Orleans, France; (C.M.); (N.M.); (I.I.)
| | - Ioannis Ignatiadis
- BRGM, French Geological Survey, 3 Avenue Claude Guillemin, CEDEX 02, 45060 Orleans, France; (C.M.); (N.M.); (I.I.)
| | - Stéphanie Betelu
- BRGM, French Geological Survey, 3 Avenue Claude Guillemin, CEDEX 02, 45060 Orleans, France; (C.M.); (N.M.); (I.I.)
- Correspondence: (A.S.); (S.B.)
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16
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Ren C, Zhou M, Liu Z, Liang L, Li X, Lu X, Wang H, Ji J, Peng L, Hou G, Li W. Enhanced Fluoride Uptake by Layered Double Hydroxides under Alkaline Conditions: Solid-State NMR Evidence of the Role of Surface >MgOH Sites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:15082-15089. [PMID: 34723496 DOI: 10.1021/acs.est.1c01247] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Layered double hydroxides (LDHs) are potential low-cost filter materials for use in fluoride removal from drinking water, but molecular-scale defluoridation mechanisms are lacking. In this research, we employed 19F solid-state NMR spectroscopy to identify fluoride sorption products on 2:1 MgAl LDH and to reveal the relationship between fluoride sorption and the LDH structure. A set of six 19F NMR peaks centered at -140, -148, -156, -163, -176, and -183 ppm was resolved. Combining quantum chemical calculations based on density function theory (DFT) and 19F{27Al} transfer of populations in double resonance (TRAPDOR) analysis, we could assign the peaks at -140, -148, -156, and -163 ppm to Al-F (F coordinated to surface Al) and those at -176 and -183 ppm to Mg-F (F coordinated to surface Mg only). Interestingly, the spectroscopic data reveal that the formation of Al-F is the predominant mode of F- sorption at low pH, whereas the formation of Mg-F is predominant at high pH (or a higher Mg/Al ratio). This finding supports the fact that the F- uptake of 2:1 MgAl LDH was nearly six times that of activated alumina at pH 9. Overall, we explicitly revealed the different roles of the surface >MgOH and >AlOH sites of LDHs in defluoridation, which explained why the use of classic activated alumina for defluoridation is limited at high pH. The findings from this research may also provide new insights into material screening for potential filters for F- removal under alkaline conditions.
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Affiliation(s)
- Chao Ren
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Mengzi Zhou
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Zhengmao Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 Liaoning Province, China
| | - Lixin Liang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 Liaoning Province, China
| | - Xiaozhan Li
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Xiancai Lu
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Hongtao Wang
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Junfeng Ji
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Luming Peng
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
| | - Guangjin Hou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 Liaoning Province, China
| | - Wei Li
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, China
- Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, 163 Xianlin Road, Nanjing 210023, China
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17
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Removal of sulfate from wastewater via synthetic Mg–Al layered double hydroxide: An adsorption, kinetics, and thermodynamic study. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Enhanced CO2 capture from methane-stream using MII -Al LDH prepared by microwave-assisted urea hydrolysis. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Ghazali SAISM, Fatimah I, Bohari FL. Synthesis of Hybrid Organic-Inorganic Hydrotalcite-Like Materials Intercalated with Duplex Herbicides: The Characterization and Simultaneous Release Properties. Molecules 2021; 26:molecules26165086. [PMID: 34443675 PMCID: PMC8399961 DOI: 10.3390/molecules26165086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/04/2021] [Accepted: 08/14/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, a controlled-release formulation of duplex herbicides, namely, 2,4,5-trichlorophenoxybutyric acid (TBA) and 3,4-dichlorophenoxy-acetic acid (3,4D), was simultaneously embedded into Zn-Al-layered double hydroxides (LDHs). The resulting nanohybrid Zinc-Aluminium-3,4D-TBA (ZADTX) was composed of a well-ordered crystalline layered structure with increasing basal spacing from 8.9 Å to 20.0 Å in the Powder X-ray Diffraction (PXRD) with 3,4D and TBA anions located in the gallery of LDHs with bilayer arrangement. The release of 3,4D and TBA fit the pseudo-second-order model. This duplex nanohybrid possessed a well-controlled release property (53.4% release from TBA and 27.8% release from 3,4D), which was highly effective, requiring the use of a small quantity and, hence, environmentally safer.
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Affiliation(s)
- Sheikh Ahmad Izaddin Sheikh Mohd Ghazali
- Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Negeri Sembilan, Kampus Kuala Pilah, Kuala Pilah 72000, Negeri Sembilan, Malaysia;
- Correspondence: ; Tel.: +60-172426928
| | - Is Fatimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta 55584, Indonesia;
| | - Farah Liyana Bohari
- Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Negeri Sembilan, Kampus Kuala Pilah, Kuala Pilah 72000, Negeri Sembilan, Malaysia;
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20
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Yang Q, Cui P, Liu C, Fang G, Huang M, Wang Q, Zhou Y, Hou H, Wang Y. In situ stabilization of the adsorbed Co 2+ and Ni 2+ in rice straw biochar based on LDH and its reutilization in the activation of peroxymonosulfate. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126215. [PMID: 34492972 DOI: 10.1016/j.jhazmat.2021.126215] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/17/2021] [Accepted: 05/21/2021] [Indexed: 06/13/2023]
Abstract
The stabilization of heavy metals adsorbed in the spent biochar remains a challenge, and the risk of secondary pollution under environmental changes will rise under inadequate post-treatment. Moreover, the safe and sufficient re-utilization of the spent biochar with heavy metals loaded have attracted extensive attention. In this research, the performance and mechanism of rice straw biochar (RSBC) pyrolyzed at different temperature for nickel and cobalt adsorption were investigated, and the stabilization of the adsorbed heavy metals was achieved via a simple two-step strategy: the adsorption of metal ions and the hydrothermal process to form the stable layered double hydroxides (LDH) on biochar, with a leaching rate below 0.005% evaluated by EPA toxicity characteristic leaching procedure (TCLP). Meanwhile, the stabilized RSBC-LDH can be reused as an excellent catalyst in the activation of peroxymonosulfate (PMS) to degrade organic pollutants efficiently. This work eliminated the risk of heavy metal desorption from the spent biochar, and enabled a new strategy for the optimized utilization of biochar in environmental remediation.
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Affiliation(s)
- Qiang Yang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China; University of Chinese Academy of Science, 100049 Beijing, PR China
| | - Peixin Cui
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China
| | - Cun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China
| | - Guodong Fang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China
| | - Meiying Huang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China; University of Chinese Academy of Science, 100049 Beijing, PR China
| | - Qiuyue Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China; College of Tropical Crops, Hainan University, 570100 Haikou, PR China
| | - Yiyi Zhou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China; University of Chinese Academy of Science, 100049 Beijing, PR China
| | - Hongbo Hou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, 410004 Changsha, PR China
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, 210008 Nanjing, PR China; University of Chinese Academy of Science, 100049 Beijing, PR China.
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21
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Zhuzhgov AV, Kruglyakov VY, Suprun EA, Protsenko RS, Isupova LA. Synthesis of Highly Dispersed Aluminum Magnesium Oxides from the Product of Centrifugal Thermal Activation of Gibbsite. RUSS J APPL CHEM+ 2021. [DOI: 10.1134/s107042722102004x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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High Temperature Adsorption of SO2 on Mixed Oxides Derived from CaAl Hydrotalcite-Like Compounds. Processes (Basel) 2021. [DOI: 10.3390/pr9020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
SO2 which is usually emitted at high temperature is one of the most important air pollutants. It is of great significance to develop high temperature SO2 adsorbent with high efficiency and low cost. In this work, a series of hydrotalcite-like compound-derived CaAlO and CaXAlO(X = Ce, Co) were prepared by coprecipitation and calcination method, and were employed as adsorbents for SO2 adsorption at high temperature (700 °C). The structure and surface properties of these adsorbents were characterized by XRD, Brunauer–Emmett–Teller (BET), Derivative thermogravimetric analysis (DTG) and CO2-TPD (temperature programmed desorption) measurement. Addition of a minor amount of Ce, Co (5 wt%) could significantly increase the number of weak alkalinity sites. CaO in CaCeAlO showed the best SO2 adsorption capacity of 1.34 g/g, which is two times higher than that of CaO in CaAlO (0.58 g/g).
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23
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Jiang Z, Wu J, Liu X, Yu H, Jiao C, Shen J, Pei Y. Facile synthesis of MgAl layered double hydroxides by a co-precipitation method for efficient nitrate removal from water: kinetics and mechanisms. NEW J CHEM 2021. [DOI: 10.1039/d1nj02035h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A series of MgAl-LDH as highly efficient adsorbents for removing low concentrations of NO3− were synthesized. The mechanism of NO3− removal has been comprehensively discussed in terms of its characterization, adsorption kinetics and thermodynamics.
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Affiliation(s)
- Zhuwu Jiang
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
- College of Civil Engineering
| | - Jiangnan Wu
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
| | - Xinru Liu
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
| | - Hai Yu
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
| | - Chengyuan Jiao
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
| | - Jyunhong Shen
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
| | - Yanyan Pei
- College of Ecological Environment and Urban Construction
- Fujian University of Technology
- Fuzhou
- China
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24
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Giannakou P, Slade RC, Shkunov M. Cyclic Voltammetry Studies of Inkjet-printed NiO supercapacitors: Effect of Substrates, Printing and Materials. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136539] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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25
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Iuzviuk MH, Bouali AC, Serdechnova M, Yasakau KA, Wieland DCF, Dovzhenko G, Mikhailau A, Blawert C, Zobkalo IA, Ferreira MGS, Zheludkevich ML. In situ kinetics studies of Zn-Al LDH intercalation with corrosion related species. Phys Chem Chem Phys 2020; 22:17574-17586. [PMID: 32716424 DOI: 10.1039/d0cp01765e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Kinetic parameters for three anion exchange reactions - Zn-LDH-NO3→ Zn-LDH-Cl, Zn-LDH-NO3→ Zn-LDH-SO4 and Zn-LDH-NO3→ Zn-LDH-VOx- were obtained by in situ synchrotron study. The first and the second ones are two-stage reactions; the first stage is characterized by the two-dimensional diffusion-controlled reaction following deceleratory nucleation and the second stage is a one-dimensional diffusion-controlled reaction also with a decelerator nucleation effect. In the case of exchange NO3-→ Cl- host anions are completely released, while in the case of NO3-→ SO42- the reaction ends without complete release of nitrate anions. The exchange of Zn-LDH-NO3→ Zn-LDH-VOx is a one-stage reaction and goes much slower than the previous two cases. The latter is characterized by a one stage two-dimensional reaction with an instantaneous nucleation. As a result, at the end of this process there are two crystalline phases with different polyvanadate species, presumably V4O124- and V2O74-, nitrate anions were not completely released. The rate of replacing NO3- anions by guest ones can be represented as Cl- > SO42- > VOxy-.
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Affiliation(s)
- Mariia H Iuzviuk
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Centre «Kurchatov Institute», Laboratory of Physics of Crystals, Leningradskaya Oblast, 1, mkr. Orlova Roshcha, 188300, Gatchina, Russia.
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26
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Cunha VRR, Petersen PAD, Souza RB, Martins AMCRPF, Leroux F, Taviot-Gueho C, Petrilli HM, Koh IHJ, Constantino VRL. Phytochemical species intercalated into layered double hydroxides: structural investigation and biocompatibility assays. NEW J CHEM 2020. [DOI: 10.1039/d0nj00238k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The compound p-coumaric acid (HCou) is found in many foods and presents action in the suppression of chronic diseases and protective effects on neurodegenerative disorders.
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Affiliation(s)
- Vanessa R. R. Cunha
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- USP
- São Paulo
| | - Philippe A. D. Petersen
- Departamento de Física dos Materiais e Mecânica
- Instituto de Física
- Universidade de São Paulo
- USP
- São Paulo
| | - Rodrigo B. Souza
- Departamento de Morfologia e Genética
- Universidade Federal de São Paulo – UNIFESP
- São Paulo
- Brazil
| | | | - Fabrice Leroux
- Institut de Chimie de Clermont-Ferrand ICCF
- CNRS
- Université Clermont Auvergne
- F-63000 Clermont-Ferrand
- France
| | - Christine Taviot-Gueho
- Institut de Chimie de Clermont-Ferrand ICCF
- CNRS
- Université Clermont Auvergne
- F-63000 Clermont-Ferrand
- France
| | - Helena M. Petrilli
- Departamento de Física dos Materiais e Mecânica
- Instituto de Física
- Universidade de São Paulo
- USP
- São Paulo
| | - Ivan H. J. Koh
- Departamento de Cirurgia
- Universidade Federal de São Paulo – UNIFESP
- São Paulo
- Brazil
| | - Vera R. L. Constantino
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- USP
- São Paulo
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Comparative Study on the Corrosion Inhibitive Effect of 2-Mecraptobenzothiazole and Na2HPO4 on Industrial Conveying API 5L X42 Pipeline Steel. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app10010290] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mild or low-carbon steel has an increasing utilization and is widely used for building construction, machinery parts, and pipelines, because it can be machined easily and has enhanced weldability as well as a low price. In any case, the corrosion resistance of mild steel under the conditions in industrial applications or in atmosphere is a thoughtful concern. This study inquires into the application of 2-mecraptobenzothiazole (MBT) and Na2HPO4 as corrosion inhibitors for the protection of API 5L X42 pipeline steel in 3.5 wt % NaCl as well as in water from the Athens city supply system. The electrochemical/morphological characterizations of the aforementioned mild steel proved that the corrosion protection mechanisms can be assigned to the protective layers created onto the metal surface because of the presence of the inhibitors, which prevent chloride’s penetration. The synergistic effect of the MBT and Na2HPO4 corrosion inhibition behavior, in a molar ratio of 1:1, revealed that the additives performed effectively with corrosion inhibition efficiency above 90%.
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28
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Guo Y, Fan L, Liu M, Yang L, Fan G, Li F. Nitrogen-Doped Carbon Quantum Dots-Decorated Mg-Al Layered Double Hydroxide-Supported Gold Nanocatalysts for Efficient Base-Free Oxidation of Benzyl Alcohol. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04296] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yujing Guo
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
| | - Lipeng Fan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
| | - Mengran Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
| | - Lan Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
| | - Guoli Fan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
| | - Feng Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No.15, Beisanhuan East Road, 100029 Beijing, China
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Effect of Chain Length and Functional Group of Organic Anions on the Retention Ability of MgAl- Layered Double Hydroxides for Chlorinated Organic Solvents. CHEMENGINEERING 2019. [DOI: 10.3390/chemengineering3040089] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nowadays, the contamination of groundwater and soils by chlorinated organic solvents is a severe and worldwide problem. Due to their swelling properties, Layered Double Hydroxides (LDHs) are potentially excellent compounds to retain chlorinated organic solvents from aquifers. By intercalating organic anions, the polarity of the interlayer space can be changed from hydrophilic to hydrophobic, enhancing the adsorption of chloro-organic molecules onto the alkyl chains of intercalated organic anions. In this study, organically modified LDHs were synthesized and their efficiency was tested in batch experiments with three different chlorinated organic solvents, namely trichloroethylene, 1,1,2-trichloroethane and trichloromethane (chloroform), to examine the influence of the chain length and the functional group of the intercalated organic anion upon the retention ability of a LDH due to different electronic interactions and different sizes of the interlayer space. All synthesized and used samples were characterized using powder X-ray diffraction, thermal analysis coupled with mass spectrometry and Fourier-transform infrared spectroscopy; freshly synthesized materials were additionally analyzed regarding their particle size distribution and specific surface area. Results of the batch experiments showed that only LDHs with intercalated long-chain organic anions could be efficient adsorbents for the removal of chlorinated organic solvents from contaminated water. A selective efficiency towards 1,1,2-trichloroethane and trichloromethane can be proposed for these reactants.
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Teepakakorn A(P, Yamaguchi T, Ogawa M. The Improved Stability of Molecular Guests by the Confinement into Nanospaces. CHEM LETT 2019. [DOI: 10.1246/cl.181026] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Aranee (Pleng) Teepakakorn
- School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1 Payupnai, Wangchan, Rayong 21210, Thailand
| | - Tetsuo Yamaguchi
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1 Payupnai, Wangchan, Rayong 21210, Thailand
| | - Makoto Ogawa
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1 Payupnai, Wangchan, Rayong 21210, Thailand
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Rosa M, Marani D, Perin G, Simonsen SB, Zielke P, Glisenti A, Kiebach R, Lesch A, Esposito V. Impact of cation redox chemistry on continuous hydrothermal synthesis of 2D-Ni(Co/Fe) hydroxides. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00334g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We challenge the transition from brucite-like to hydrotalcite-like phases for NiCo and NiFe hydroxides via continuous hydrothermal flow synthesis.
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Affiliation(s)
- Massimo Rosa
- DTU Energy
- Technical University of Denmark
- Roskilde
- Denmark
| | - Debora Marani
- Centro de Engenharia
- Modelagem e Ciências Sociais Aplicadas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Giovanni Perin
- University of Padova
- Department of Chemical Sciences
- Padova
- Italy
| | | | - Philipp Zielke
- DTU Energy
- Technical University of Denmark
- Roskilde
- Denmark
| | | | - Ragnar Kiebach
- DTU Energy
- Technical University of Denmark
- Roskilde
- Denmark
| | - Andreas Lesch
- Laboratoire d'Electrochimie Physique et Analytique
- Ecole Polytechnique Fédérale de Lausanne
- CH-1950 Sion
- Switzerland
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33
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Pan D, Ge S, Zhao J, Tian J, Shao Q, Guo L, Mai X, Wu T, Murugadoss V, Liu H, Ding T, Angaiah S, Guo Z. Synthesis and Characterization of ZnNiIn Layered Double Hydroxides Derived Mixed Metal Oxides with Highly Efficient Photoelectrocatalytic Activities. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04829] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Duo Pan
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Shengsong Ge
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Junkai Zhao
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jiangyang Tian
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qian Shao
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Lin Guo
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xianmin Mai
- School of Urban Planning and Architecture, Southwest Minzu University, Chengdu 610041, China
| | - Tingting Wu
- Department of Civil and Environmental Engineering, The University of Alabama, Huntsville, Alabama 35899, United States
| | - Vignesh Murugadoss
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Electrochemical Energy Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - Hu Liu
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Tao Ding
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Subramania Angaiah
- Electrochemical Energy Research Lab, Centre for Nanoscience and Technology, Pondicherry University, Puducherry 605 014, India
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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Tan J, Wang D, Cao H, Qiao Y, Zhu H, Liu X. Effect of Local Alkaline Microenvironment on the Behaviors of Bacteria and Osteogenic Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42018-42029. [PMID: 30412372 DOI: 10.1021/acsami.8b15724] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The interactions between material surfaces and bacteria/cells have been widely investigated, based on which biomaterials with antibacterial and osteogenic abilities can be designed to conquer implant failures. The pH of environments is known to affect bacterial growth and bone formation/resorption, and it is possible that the antibacterial and osteogenic abilities of biomaterials can be simultaneously improved by regulating their surface alkalinity. Herein, we fabricated many kinds of films with various alkalinity levels on titanium surface to explore the effect of local alkaline microenvironments around material surfaces on the behaviors of bacteria and osteogenic cells. Both Gram-positive and -negative bacteria were cultured on sample surfaces to investigate their antibacterial effects. Cell adhesion, proliferation, and alkaline phosphatase (ALP) activities were investigated by culturing both bone mesenchymal stem cells (MSCs) and osteoblast cells on sample surfaces. The results show that an appropriate local alkaline environment can effectively inhibit the growth of both Gram-positive and -negative bacteria through inactivating ATP synthesis and inducing oxidative stress. Meanwhile, it can promote the osteogenic differentiation of bone MSCs and enhance the proliferation and ALP activities of osteoblast cells. In conclusion, material surfaces endowed with appropriate alkalinity can possess antibacterial and osteogenic properties, which provide a novel strategy to design multifunctional biomaterials for bone generation.
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Affiliation(s)
- Ji Tan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Science , Beijing 100049 , China
| | - Donghui Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Huiliang Cao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Yuqin Qiao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Hongqin Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics , Chinese Academy of Sciences , Shanghai 200050 , China
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Zhang Y, Wei S, Lin Y, Fan G, Li F. Dispersing Metallic Platinum on Green Rust Enables Effective and Selective Hydrogenation of Carbonyl Group in Cinnamaldehyde. ACS OMEGA 2018; 3:12778-12787. [PMID: 31458003 PMCID: PMC6644358 DOI: 10.1021/acsomega.8b02114] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 09/26/2018] [Indexed: 06/10/2023]
Abstract
Layered double hydroxides (LDHs), a category of two-dimensional nanostructured layered materials, can be employed widely as supports, catalyst precursors, and actual catalysts in a variety of heterogeneous catalytic reactions. In this work, we reported a series of Fe-containing LDHs-supported Pt-based catalysts for base-free selective hydrogenation of cinnamaldehyde into cinnamyl alcohol. It was revealed that their catalytic performances were closely correlated to the compositions of LDH supports. Especially, highly selective hydrogenation of cinnamaldehyde could be achieved over the Fe(II)-Fe(III)-LDH (green rust, FeFe-LDH) supported Pt catalyst, with a high cinnamyl alcohol selectivity of about 92% at a conversion of 90% after a reaction of 2 h, superior to other Fe(III)-containing LDHs (e.g., NiFe-LDH, CoFe-LDH, and ZnFe-LDH) supported Pt ones. It was demonstrated that the high catalytic efficiency of Pt/FeFe-LDH mainly originated from highly electron-rich character of metallic Pt species and the presence of surface reductive Fe2+ species, thereby being helpful for the chemisorption and activation of carbonyl group in cinnamaldehyde. Moreover, strong interactions between green rust matrix and metallic Pt species could stabilize the surface Pt nanoparticles, thereby inhibiting the metal leaching during the above reaction. The present study illustrates the validity of support control in supported Pt catalysts via tuning the compositions of LDHs, and thus the electronic structure of active metal sites and catalytic performance in the selective hydrogenation of cinnamaldehyde.
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George G, Saravanakumar MP. Facile synthesis of carbon-coated layered double hydroxide and its comparative characterisation with Zn-Al LDH: application on crystal violet and malachite green dye adsorption-isotherm, kinetics and Box-Behnken design. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:30236-30254. [PMID: 30155633 DOI: 10.1007/s11356-018-3001-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/16/2018] [Indexed: 05/27/2023]
Abstract
The adsorption of crystal violet (CV) and malachite green (MG) dyes using carbon-coated Zn-Al-layered double hydroxide (C-Zn-Al LDH) was investigated in this work. The characterisation of both Zn-Al LDH and C-Zn-Al LDH was performed using XRD, SEM, TEM, EDX, XPS, FTIR, BET and TGA. The results indicated that carbon particles were effectively coated on Zn-Al LDH surface. The average total pore volume and pore diameter of C-Zn-Al LDH were observed as 0.007 cc/g and 3.115 nm. The impact of parameters like initial dye concentration, pH and adsorbent dosage on the dye removal efficiency was confirmed by carrying out Box-Behnken design experiments. Langmuir isotherm was well suited for both CV and MG adsorption among other isotherm models. The adsorption capacity was maximally obtained as 129.87 and 126.58 mg/g for CV and MG respectively. Pseudo-second order fits the adsorption kinetics than any other kinetic models for both the dyes. The thermodynamic study indicates that the adsorption process of CV was exothermic, whereas for MG was endothermic. Electrostatic attraction, H-bonding, n-π and π- π interactions were mainly influenced in the adsorption process. This study concludes that C-Zn-Al LDH is an efficient adsorbent for the CV and MG dye removal from aqueous solutions. Graphical abstract ᅟ Graphical abstract contains text below the minimum required font size of 6pts inside the artwork, and there is no sufficient space available for the text to be enlarged. Please provide replacement figure file.Graphical abstract contains text is rewritten with the maximum required font size inside the artwork and provided sufficient space between the text which is enlarged.The new Graphical abstract is attached as an image in the attachment file for your further usage.
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Affiliation(s)
- Giphin George
- School of Civil and Chemical Engineering, Vellore Institute of Technology, Vellore Campus, Vellore, India
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37
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Xu Y, Wang Z, Tan L, Zhao Y, Duan H, Song YF. Fine Tuning the Heterostructured Interfaces by Topological Transformation of Layered Double Hydroxide Nanosheets. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02246] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yanqi Xu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 People’s Republic of China
| | - Zelin Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 People’s Republic of China
| | - Ling Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 People’s Republic of China
| | - Yufei Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 People’s Republic of China
| | - Haohong Duan
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Yu-Fei Song
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029 People’s Republic of China
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38
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He X, Qiu X, Hu C, Liu Y. Treatment of heavy metal ions in wastewater using layered double hydroxides: A review. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1392318] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xin He
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Hubei, China
| | - Xinhong Qiu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Hubei, China
| | - Chenyan Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Hubei, China
| | - Yawen Liu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Hubei, China
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39
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Sławiński WA, Sjåstad AO, Fjellvåg H. Stacking Faults and Polytypes for Layered Double Hydroxides: What Can We Learn from Simulated and Experimental X-ray Powder Diffraction Data? Inorg Chem 2016; 55:12881-12889. [DOI: 10.1021/acs.inorgchem.6b02247] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wojciech A. Sławiński
- Centre
for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO
Box 1033, N-0315 Oslo, Norway
- ISIS
Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0QX United Kingdom
| | - Anja Olafsen Sjåstad
- Centre
for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO
Box 1033, N-0315 Oslo, Norway
| | - Helmer Fjellvåg
- Centre
for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, PO
Box 1033, N-0315 Oslo, Norway
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Abstract
Water oxidation is a key chemical transformation for the conversion of solar energy into chemical fuels. Our review focuses on recent work on robust earth-abundant heterogeneous catalysts for the oxygen-evolving reaction (OER). We point out that improvements in the performance of OER catalysts will depend critically on the success of work aimed at understanding reaction barriers based on atomic-level mechanisms. We highlight the challenge of obtaining acid-stable OER catalysts, with proposals for elements that could be employed to reach this goal. We suggest that future advances in solar fuels science will be accelerated by the development of new methods for materials synthesis and characterization, along with in-depth investigations of redox mechanisms at catalytic surfaces.
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Affiliation(s)
- Bryan M Hunter
- Beckman Institute and Division of Chemistry and Chemical Engineering, California Institute of Technology , M/C 139-74, Pasadena, California 91125, United States
| | - Harry B Gray
- Beckman Institute and Division of Chemistry and Chemical Engineering, California Institute of Technology , M/C 139-74, Pasadena, California 91125, United States
| | - Astrid M Müller
- Beckman Institute and Division of Chemistry and Chemical Engineering, California Institute of Technology , M/C 139-74, Pasadena, California 91125, United States
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Liang YN, Li Y, Ang C, Shen Y, Chi D, Hu X. Novel low temperature synthesis route for functional Au/ZnFe mixed oxide nanohybrids. ACS APPLIED MATERIALS & INTERFACES 2014; 6:12406-12412. [PMID: 25091275 DOI: 10.1021/am502256e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
ZnFe layered double hydroxide (LDH) was synthesized through which the [AuCl4](-) anions were directly intercalated in situ. Low temperature calcination converts the [AuCl4](-) intercalated LDH into an intimately mixed ZnFe metal oxides containing favorably dispersed Au nanoparticles. The unique microstructure exhibited substantially improved photocatalytic activity by more than 40 times compared to the baseline material intercalated with [CO3](2-). Such improvement is unprecedented among noble metal decorated photocatalyst materials and is elucidated based on the mechanisms of morphology evolution.
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Affiliation(s)
- Yen Nan Liang
- School of Materials Science and Engineering, Nanyang Technological University , Nanyang Avenue, Singapore 639798, Singapore
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42
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Radha S, Milius W, Breu J, Kamath PV. Synthesis and reversible hydration behavior of the thiosulfate intercalated layered double hydroxide of Zn and Al. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sampieri A, Fetter G, Villafuerte-Castrejon ME, Tejeda-Cruz A, Bosch P. Twofold role of calcined hydrotalcites in the degradation of methyl parathion pesticide. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2011; 2:99-103. [PMID: 21977419 PMCID: PMC3148045 DOI: 10.3762/bjnano.2.11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 01/26/2011] [Indexed: 05/31/2023]
Abstract
Methyl parathion (MP) is a very toxic organophosphate pesticide used as a non-systematic insecticide and acaricide on many corps. As MP and its by-products are highly toxic, they have to be retained to avoid pollution of rivers and lakes. Highly efficient sorbents are hydrotalcites (HTs) (or anionic clays). We have correlated the degradation of an aqueous solution of MP at room temperature, with the basicity of the adsorbing materials. It was found that the metal composition of hydrotalcites determines both the surface electronic properties (basic or acidic) and the sorption capacity. Depending on the basic strength, some calcined hydrotalcites can catalyze the transformation of MP to p-nitrophenol (p-NP) and retain its by-products. Such a process has the advantage of being able to be carried out at room temperature and at the pH of the pesticide solution.
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Affiliation(s)
- Alvaro Sampieri
- Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química, Av. San Claudio, Ciudad Universitaria, 72570, Puebla, PUE, Mexico. Phone: (+52) 22222-95500 ext. 7250
| | - Geolar Fetter
- Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Químicas, Av. San Claudio, Ciudad Universitaria, 72570, Puebla, PUE, Mexico
| | - María Elena Villafuerte-Castrejon
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, A.P. 70360, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Adriana Tejeda-Cruz
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, A.P. 70360, Ciudad Universitaria, 04510 México, D.F., Mexico
| | - Pedro Bosch
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, A.P. 70360, Ciudad Universitaria, 04510 México, D.F., Mexico
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