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Fischer JC, Steentjes R, Chen DH, Richards BS, Zojer E, Wöll C, Howard IA. Determining Structures of Layer-by-Layer Spin-Coated Zinc Dicarboxylate-Based Metal-Organic Thin Films. Chemistry 2024; 30:e202400565. [PMID: 38642002 DOI: 10.1002/chem.202400565] [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: 03/08/2024] [Revised: 04/19/2024] [Accepted: 04/19/2024] [Indexed: 04/22/2024]
Abstract
Thin films of crystalline solids with substantial free volume built from organic chromophores and metal secondary building units (SBUs) are promising for engineering new optoelectronic properties through control of interchromophore coupling. Zn-based SBUs are especially relevant in this case because they avoid quenching the chromophore's luminescence. We find that layer-by-layer spin-coating using Zn acetate dihydrate and benzene-1,4-dicarboxylic acid (H2BDC) and biphenyl-4,4'-dicarboxylic acid (H2BPDC) linkers readily produces crystalline thin films. However, analysis of the grazing-incidence wide-angle X-ray scattering (GIWAXS) data reveals the structures of these films vary significantly with the linker, and with the metal-to-linker molar ratio used for fabrication. Under equimolar conditions, H2BPDC creates a type of structure like that proposed for SURMOF-2, whereas H2BDC generates a different metal-hydroxide-organic framework. Large excess of Zn2+ ions causes the growth of layered zinc hydroxides, irrespective of the linker used. Density functional theory (DFT) calculations provide structural models with minimum total energy that are consistent with the experimentally observed diffractograms. In the broader sense, this work illustrates the importance in this field of careful structure determination, e. g., by utilizing GIWAXS and DFT simulations to determine the structure of the obtained crystalline metal-organic thin films, such that properties can be rationally engineered and explained.
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Affiliation(s)
- Jan C Fischer
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Robbin Steentjes
- Institute for Solid-State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16/II, 8010, Graz, Austria
| | - Dong-Hui Chen
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Bryce S Richards
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131, Karlsruhe, Germany
| | - Egbert Zojer
- Institute for Solid-State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16/II, 8010, Graz, Austria
| | - Christof Wöll
- Institute of Functional Interfaces, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Ian A Howard
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131, Karlsruhe, Germany
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2
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Nazir A, Qamar A, Rafique MS, Murtaza G, Arshad T, Muneeb A, Jabeen K, Mujtaba MA, Fayaz H, Saleel CA. Enhanced thermal conductivity of plasma generated ZnO-MgO based hybrid nanofluids: An experimental study. Heliyon 2024; 10:e26396. [PMID: 38404828 PMCID: PMC10884918 DOI: 10.1016/j.heliyon.2024.e26396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024] Open
Abstract
Hybrid nanofluids (HNFs) of metallic oxide-based nanoparticles (NPs) have been prepared in different basefluids (BFs) employing the thermal plasma technique. NPs of ZnO-MgO were directly dispersed into pristine coolant, engine oil, distilled water (DW), and coconut oil. Plasma was generated between two identical electrodes applying 8.0 kV at the ambient conditions and proved economically viable in preparing stable HNFs. X-ray Diffractometry (XRD) showed ZnO and MgO NPs possessed hexagonal and cubic crystal structures, respectively. The band gap is calculated through UV-visible spectroscopy. The thermal conductivity (TC) of the HNFs has been measured using a thermal conductivity analyzer based on the transient hot wire method. The band gaps of pristine coolant and its HNFs were obtained to be 3.35 eV and 3.33 eV, respectively. In engine oil and its HNFs, band gaps of 3.16 eV and 3.02 eV have been extracted. There appears to be a slight reduction in band gap for coolant and engine oil-based HNFs. The band gap value of coconut oil-based HNFs was 4.05 eV, which showed a higher value than the pristine coconut oil-based HNFs (3.95 eV). The band gap calculated in the case of DW-based HNFs was 3.79 eV. TC of HNFs with volume concentration of 0.019 % for DW, 0.020 % for coolant, 0.016 % for engine oil, and 0.017 % for coconut oil were tested between 20 and 60 °C. An increase in TC was observed with the rise in temperature of the HNFs. Maximum increment in TC was observed at 60 °C for coolant-based HNFs, which was 19 %, followed by DW (18%), coconut oil (18%), and engine oil (16%), respectively. DW-based HNFs can be used as a coolant and optical filter for optoelectronics devices like photovoltaic cells for better performance. The study underscores precise control of NPs size as pivotal for band gap influence. HNFs hold promise as the next-gen heat transfer fluids (HTFs), revolutionizing thermal conductivity across industries. This research lays a firm foundation for plasma-synthesized HNFs' application in enhanced heat transfer and optoelectronic devices. Coolant-based HNFs excel in thermal conductivity, addressing heat transfer challenges.
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Affiliation(s)
- Aqsa Nazir
- Laser and Optronics Centre, Department of Physics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - Adnan Qamar
- Department of Mechanical, Mechatronics and Manufacturing Engineering, New Campus, University of Engineering and Technology Lahore, Lahore, Pakistan
| | - Muhammad Shahid Rafique
- Laser and Optronics Centre, Department of Physics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - Ghulam Murtaza
- Laser and Optronics Centre, Department of Physics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - Tehreem Arshad
- Laser and Optronics Centre, Department of Physics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - Abdul Muneeb
- Laser and Optronics Centre, Department of Physics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - Kanwal Jabeen
- Department of Mathematics, University of Engineering and Technology Lahore, Lahore, 54890, Pakistan
| | - M A Mujtaba
- Department of Mechanical, Mechatronics and Manufacturing Engineering, New Campus, University of Engineering and Technology Lahore, Lahore, Pakistan
| | - H Fayaz
- Modeling Evolutionary Algorithms Simulation and Artificial Intelligence, Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - C Ahamed Saleel
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Asir-Abha, 61421, Saudi Arabia
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Lisowska K, Purser W, Chang F, Suter TM, Miller TS, Sella A, Howard CA, McMillan PF, Corà F, Clancy AJ. Amphoteric dissolution of two-dimensional polytriazine imide carbon nitrides in water. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20220339. [PMID: 37691463 PMCID: PMC10493549 DOI: 10.1098/rsta.2022.0339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/18/2023] [Indexed: 09/12/2023]
Abstract
Crystalline two-dimensional carbon nitrides with polytriazine imide (PTI) structure are shown to act amphoterically, buffering both HCl and NaOH aqueous solutions, resulting in charged PTI layers that dissolve spontaneously in their aqueous media, particularly for the alkaline solutions. This provides a low energy, green route to their scalable solution processing. Protonation in acid is shown to occur at pyridinic nitrogens, stabilized by adjacent triazines, whereas deprotonation in base occurs primarily at basal plane NH bridges, although NH2 edge deprotonation is competitive. We conclude that mildly acidic or basic pHs are necessary to provide sufficient net charge on the nanosheets to promote dissolution, while avoiding high ion concentrations which screen the repulsion of like-charged PTI sheets in solution. This article is part of the theme issue 'Exploring the length scales, timescales and chemistry of challenging materials (Part 2)'.
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Affiliation(s)
- Karolina Lisowska
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | - Will Purser
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | - Fuqiang Chang
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | - Theo M. Suter
- Department of Chemistry, University College London,London WC1E 0AJ, UK
- Department of Chemical Engineering, University College London, London WC1E 7JE, UK
| | - Thomas S. Miller
- Department of Chemical Engineering, University College London, London WC1E 7JE, UK
| | - Andrea Sella
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | | | - Paul F. McMillan
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | - Furio Corà
- Department of Chemistry, University College London,London WC1E 0AJ, UK
| | - Adam J. Clancy
- Department of Chemistry, University College London,London WC1E 0AJ, UK
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Meneses CCF, de Sousa PRM, Lima KCN, Souza LMMDA, Feio WP, Remédios CMR, Jouin J, Thomas P, Masson O, Alves CN, Lameira J, Monteiro MC. Caffeic Acid-Zinc Basic Salt/Chitosan Nanohybrid Possesses Controlled Release Properties and Exhibits In Vivo Anti-Inflammatory Activities. Molecules 2023; 28:4973. [PMID: 37446635 DOI: 10.3390/molecules28134973] [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: 05/05/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 07/15/2023] Open
Abstract
Caffeic acid (CA) exhibits a myriad of biological activities including cardioprotective action, antioxidant, antitumor, anti-inflammatory, and antimicrobial properties. On the other hand, CA presents low water solubility and poor bioavailability, which have limited its use for therapeutic applications. The objective of this study was to develop a nanohybrid of zinc basic salts (ZBS) and chitosan (Ch) containing CA (ZBS-CA/Ch) and evaluate its anti-edematogenic and antioxidant activity in dextran and carrageenan-induced paw edema model. The samples were obtained by coprecipitation method and characterized by X-ray diffraction, Fourier transform infrared (FT-IR), scanning electron microscope (SEM) and UV-visible spectroscopy. The release of caffeate anions from ZBS-CA and ZBS-CA/Ch is pH-dependent and is explained by a pseudo-second order kinetics model, with a linear correlation coefficient of R2 ≥ 0.99 at pH 4.8 and 7.4. The in vivo pharmacological assays showed excellent anti-edematogenic and antioxidant action of the ZBS-CA/Ch nanoparticle with slowly releases of caffeate anions in the tissue, leading to a prolongation of CA-induced anti-edematogenic and anti-inflammatory activities, as well as improving its inhibition or sequestration antioxidant action toward reactive species. Overall, this study highlighted the importance of ZBS-CA/Ch as an optimal drug carrier.
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Affiliation(s)
- Carla Carolina Ferreira Meneses
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belem 66075-110, Pará, Brazil
| | - Paulo Robson Monteiro de Sousa
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belem 66075-110, Pará, Brazil
| | | | | | - Waldeci Paraguassu Feio
- Programa de Pós-Graduação em Física, Federal University of Pará, Belem 66075-110, Pará, Brazil
| | | | - Jenny Jouin
- Laboratoire IRCER, Université de Limoges-CNRS UMR 7315, Centre Européen de la Céramique, 87068 Limoges, France
| | - Philippe Thomas
- Laboratoire IRCER, Université de Limoges-CNRS UMR 7315, Centre Européen de la Céramique, 87068 Limoges, France
| | - Olivier Masson
- Laboratoire IRCER, Université de Limoges-CNRS UMR 7315, Centre Européen de la Céramique, 87068 Limoges, France
| | - Cláudio Nahum Alves
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belem 66075-110, Pará, Brazil
| | - Jerônimo Lameira
- Laboratório de Planejamento e Desenvolvimento de Fármacos, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belem 66075-110, Pará, Brazil
| | - Marta Chagas Monteiro
- Microbiology Laboratory, Faculty of Pharmacy, Federal University of Pará, Belem 66075-110, Pará, Brazil
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Yang C, Yu J, Huang B, Miao G, Xiao J. Boosting deep desulfurization of heavy mercaptan using layered intercalated Zn-based hydroxide adsorbents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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Carnide G, Champouret Y, Valappil D, Vahlas C, Mingotaud A, Clergereaux R, Kahn ML. Secured Nanosynthesis-Deposition Aerosol Process for Composite Thin Films Incorporating Highly Dispersed Nanoparticles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204929. [PMID: 36529954 PMCID: PMC9929256 DOI: 10.1002/advs.202204929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Application of nanocomposites in daily life requires not only small nanoparticles (NPs) well dispersed in a matrix, but also a manufacturing process that is mindful of the operator and the environment. Avoiding any exposure to NPs is one such way, and direct liquid reaction-injection (DLRI) aims to fulfill this need. DLRI is based on the controlled in situ synthesis of NPs from the decomposition of suitable organometallic precursors in conditions that are compatible with a pulsed injection mode of an aerosol into a downstream process. Coupled with low-pressure plasma, DLRI produces nanocomposite with homogeneously well-dispersed small nanoparticles that in the particular case of ZnO-DLC nanocomposite exhibit unique properties. DLRI favorably compares with the direct liquid injection of ex situ formed NPs. The exothermic hydrolysis reaction of the organometallic precursor at the droplet-gas interface leads to the injection of small and highly dispersed NPs and, consequently, the deposition of fine and controlled distribution in the nanocomposite. The scope of DLRI nanosynthesis has been extended to several metal oxides such as zinc, tin, tungsten, and copper to generalize the concept. Hence, DLRI is an attractive method to synthesize, inject, and deposit nanoparticles and meets the prevention and atom economy requirements of green chemistry.
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Affiliation(s)
- Guillaume Carnide
- LCCCNRS UPR8241Université de Toulouse205 route de NarbonneToulouse31077France
- LAPLACECNRS UMR5213Université de Toulouse118 route de NarbonneToulouse31062France
| | - Yohan Champouret
- LCCCNRS UPR8241Université de Toulouse205 route de NarbonneToulouse31077France
- LAPLACECNRS UMR5213Université de Toulouse118 route de NarbonneToulouse31062France
| | - Divyendu Valappil
- Laboratoire des IMRCPUniversité de ToulouseCNRS UMR 5623, Université Toulouse III – Paul Sabatier, 118 route de NarbonneToulouse31062France
| | - Constantin Vahlas
- CIRIMATCNRS UMR5085Université de Toulouse4 allée Émile Monso, BP‐44362, Toulouse Cedex 4Toulouse31030France
| | - Anne‐Françoise Mingotaud
- Laboratoire des IMRCPUniversité de ToulouseCNRS UMR 5623, Université Toulouse III – Paul Sabatier, 118 route de NarbonneToulouse31062France
| | - Richard Clergereaux
- LAPLACECNRS UMR5213Université de Toulouse118 route de NarbonneToulouse31062France
| | - Myrtil L. Kahn
- LCCCNRS UPR8241Université de Toulouse205 route de NarbonneToulouse31077France
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Jie Z, Yichen J, Ping L, Yang L, Huiyuan T, Xiuhong D, Zehua W, Xianying D, Chunguang L, Jiehu C. Rational construction and understanding the effect of metal cation substitution of three novel ternary Zn-Co-Ni-LDHs from 2D to 3D and its enhanced adsorption properties for MO. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:3383-3401. [PMID: 35945322 DOI: 10.1007/s11356-022-22303-6] [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: 06/07/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
The layered double hydroxides (LDHs) have attracted attention in the water treatment field. In this paper, three novel ternary Zn-Co-Ni-LDH adsorbents were prepared successfully through rational construction from 2D to 3D using triethanolamine (TEA) as an alkali source and a structural controlling reagent by hydrothermal technique. Samples were characterized by the SEM, XRD, XPS, FTIR, BET, solid-state UV/vis spectra, and TG. Three Zn-Co-Ni-LDHs exhibited higher crystallinity and surface area which were beneficial to the adsorption for methyl orange (MO). The maximum adsorption capacity of three Zn-Co-Ni-LDH adsorbents can even reach as high as 1871.65 mg·g-1, 1799.56 mg·g-1, and 1646.44 mg·g-1 for MO, respectively, which surpass those of most previously reported LDH-based adsorbents. The pseudo-second-order kinetic equation fitted the kinetic data of adsorption, while the equilibrium adsorption isotherm data followed the Langmuir model. The adsorption mechanism, electrochemical, and the antibacterial properties of three Zn-Co-Ni-LDHs were also discussed. This results not only demonstrates that three Zn-Co-Ni-LDHs are practical interest as an efficient adsorbent for the removal of MO from dye waste water, but also provides a strategy for the rational design through three ternary Zn-Co-Ni-LDHs from 2D to 3D.
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Affiliation(s)
- Zhu Jie
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Jiang Yichen
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Li Ping
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Li Yang
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Tian Huiyuan
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Du Xiuhong
- Clinical Laboratory Medicine, Henan Medical College, Zhengzhou, People's Republic of China
| | - Wang Zehua
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Duan Xianying
- School of Medicine, Huanghe Science and Technology University, Zhengzhou, People's Republic of China
- Institute of Chemistry, Henan Academy of Sciences, Zhengzhou, Henan, 450002, People's Republic of China
| | - Li Chunguang
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China
| | - Cui Jiehu
- School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China.
- Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou University of Aeronautics, Zhengzhou, People's Republic of China.
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Almasri DA, Essehli R, Tong Y, Lawler J. Layered zinc hydroxide as an adsorbent for phosphate removal and recovery from wastewater. RSC Adv 2021; 11:30172-30182. [PMID: 35480281 PMCID: PMC9040826 DOI: 10.1039/d1ra04279c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/31/2021] [Indexed: 11/30/2022] Open
Abstract
At present, phosphate removal and recovery from wastewater is gaining wide attention due to the dual issues of eutrophication, caused by the increased production of algae, and universal phosphorus scarcity. In this study, a layered zinc hydroxide (LZH) was synthesized by a simple precipitation method and characterized via various techniques. Experiments investigating the effect of contact time, pH, LZH dose, initial phosphate concentration, and co-existing ions on phosphate adsorption were conducted. LZH exhibited a high phosphate adsorption capacity (135.4 mg g−1) at a neutral pH. More than 50% of phosphate was removed within the first 60 s of contact time at an initial phosphate concentration of 5 mg L−1. Phosphate removal using the as-prepared LZH adsorbent was also tested in real treated sewage effluent reducing the residual phosphate amount to levels inhibiting to the growth of algae. Furthermore, phosphate desorption from LZH was investigated using acetic acid and sodium hydroxide regenerants which showed to be very effective for phosphate recovery. This study demonstrates a novel LZH adsorbent synthesized, characterized and applied for high phosphate removal and recovery from wastewater. ![]()
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Affiliation(s)
- Dema A Almasri
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation P. O. Box 34110 Doha Qatar
| | - Rachid Essehli
- Energy and Transportation Science Division, Oak Ridge National Laboratory Oak Ridge Tennessee 37932 USA
| | - Yongfeng Tong
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation P. O. Box 34110 Doha Qatar
| | - Jenny Lawler
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation P. O. Box 34110 Doha Qatar
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Romero M, Mombrú D, Pignanelli F, Faccio R, Mombrú ÁW. From Chain- to Graphene-like Hydroxyl-terminated (ZnO) n Clusters with n≤6 Obtained via Zinc Dimethoxide Hydrolysis and Condensation: Ab initio Structural, Electronic, Vibrational and Optical Properties Calculations. Chemphyschem 2021; 22:849-863. [PMID: 33646619 DOI: 10.1002/cphc.202100054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 03/01/2021] [Indexed: 11/08/2022]
Abstract
Recent reports are focusing on the structural evolution from the atomic-scale and also at the expenses of alkyl zinc alkoxide precursors towards (ZnO)n clusters and nanostructures with different interesting motifs, but still not much is known about their electronic properties. In this manuscript, we present a theoretical study using DFT and TD-DFT methodologies on the hydrolysis and condensation of zinc dimethoxide precursor in its monomeric, dimeric and trimeric forms towards thermodynamically stable hydroxyl-terminated (ZnO)n clusters with novel chain- and graphene-like fashions. For all cases, distinct vibrational and optical spectra features were assigned evidencing a global monotonic decrease in the opto-electronic gap with increasing oligomerization and cyclization stages. In addition, the electron-affinity of all clusters was also observed to be enhanced with increasing oligomerization and cyclization stages and the electronic charge localization in -e charged clusters was observed to be strongly related to the presence of zinc-oxo subunits and other particular structural features. Our calculations also indicate that the stabilization through hydroxyl termination of both chain- and graphene-like ZnO clusters not only could be a promising driving force to obtain larger atomic-scale 1D and 2D nanostructures but also envisage interesting properties, particularly as electronic acceptor materials for energy applications.
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Affiliation(s)
- Mariano Romero
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Dominique Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Fernando Pignanelli
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Ricardo Faccio
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Álvaro W Mombrú
- Centro NanoMat & Área Física, Departamento de Experimentación y Teoría de la Estructura de la Materia y sus Aplicaciones (DETEMA), Facultad de Química, Universidad de la República, Montevideo, Uruguay
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10
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Ming Z, Jiehu C, Jie Z, Li P, Du X, Li C. TEA-assisted hydro-thermal synthesis of layered Zn hydroxide nitrate adsorbent and its rapid adsorption for MO. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1891101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Zhang Ming
- Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
- Henan Huibo Medical Co., Ltd, Nanyang, P.R. China
| | - Cui Jiehu
- Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
- Henan Key Laboratory of Aeronautical Material and Application Technology, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
| | - Zhu Jie
- Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
| | - Ping Li
- Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
| | - Xiuhong Du
- Department of Laboratory Medicine, Henan Medical College, Zhengzhou, P.R. China
| | - Chunguang Li
- Key Laboratory of Environment Functional Materials, Zhengzhou University of Aeronautics, Zhengzhou, P.R. China
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11
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Gordeeva A, Hsu YJ, Jenei IZ, Brant Carvalho PHB, Simak SI, Andersson O, Häussermann U. Layered Zinc Hydroxide Dihydrate, Zn 5(OH) 10·2H 2O, from Hydrothermal Conversion of ε-Zn(OH) 2 at Gigapascal Pressures and its Transformation to Nanocrystalline ZnO. ACS OMEGA 2020; 5:17617-17627. [PMID: 32715247 PMCID: PMC7377638 DOI: 10.1021/acsomega.0c02075] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/19/2020] [Indexed: 05/17/2023]
Abstract
Layered zinc hydroxides (LZHs) with the general formula (Zn2+) x (OH-)2x-my (A m-) y ·nH2O (A m- = Cl-, NO3 -, ac-, SO4 2-, etc) are considered as useful precursors for the fabrication of functional ZnO nanostructures. Here, we report the synthesis and structure characterization of the hitherto unknown "binary" representative of the LZH compound family, Zn5(OH)10·2H2O, with A m- = OH-, x = 5, y = 2, and n = 2. Zn5(OH)10·2H2O was afforded quantitatively by pressurizing mixtures of ε-Zn(OH)2 (wulfingite) and water to 1-2 GPa and applying slightly elevated temperatures, 100-200 °C. The monoclinic crystal structure was characterized from powder X-ray diffraction data (space group C2/c, a = 15.342(7) Å, b = 6.244(6) Å, c = 10.989(7) Å, β = 100.86(1)°). It features neutral zinc hydroxide layers, composed of octahedrally and tetrahedrally coordinated Zn ions with a 3:2 ratio, in which H2O is intercalated. The interlayer d(200) distance is 7.53 Å. The H-bond structure of Zn5(OH)10·2H2O was analyzed by a combination of infrared/Raman spectroscopy, computational modeling, and neutron powder diffraction. Interlayer H2O molecules are strongly H-bonded to five surrounding OH groups and appear orientationally disordered. The decomposition of Zn5(OH)10·2H2O, which occurs thermally between 70 and 100 °C, was followed in an in situ transmission electron microscopy study and ex situ annealing experiments. It yields initially 5-15 nm sized hexagonal w-ZnO crystals, which, depending on the conditions, may intergrow to several hundred nm-large two-dimensional, flakelike crystals within the boundary of original Zn5(OH)10·2H2O particles.
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Affiliation(s)
- Alisa Gordeeva
- Department
of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Ying-Jui Hsu
- Department
of Physics, Umeå University, SE-901 87 Umeå, Sweden
| | - Istvan Z. Jenei
- Department
of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | | | - Sergei I. Simak
- Theoretical
Physics Division, Department of Physics, Chemistry and Biology (IFM) Linköping University, SE-581 83 Linköping, Sweden
| | - Ove Andersson
- Department
of Physics, Umeå University, SE-901 87 Umeå, Sweden
| | - Ulrich Häussermann
- Department
of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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12
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Yamamoto Y, Imai H, Oaki Y. Redox-Mediated High-Yield Exfoliation of Layered Composites into Nanosheets. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180367] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuna Yamamoto
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Hiroaki Imai
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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13
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Mei X, Ma J, Bai X, Zhang X, Zhang S, Liang R, Wei M, Evans DG, Duan X. A bottom-up synthesis of rare-earth-hydrotalcite monolayer nanosheets toward multimode imaging and synergetic therapy. Chem Sci 2018; 9:5630-5639. [PMID: 30061996 PMCID: PMC6048778 DOI: 10.1039/c8sc01288a] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/25/2018] [Indexed: 12/18/2022] Open
Abstract
Recently, ultrathin two-dimensional (2D) nanomaterials have attracted considerable research interest in biomedical applications, owing to their intriguing quantum size and surface effects. In this work, a one-step "bottom-up" method is developed to prepare rare-earth (Gd3+ and Yb3+) co-doped layered double hydroxide (LDH) monolayer nanosheets, with a precisely controlled composition and uniform morphology. Due to the successful introduction of Gd3+ and Yb3+ into the LDH host layer, the Gd&Yb-LDH monolayer nanosheets exhibit excellent magnetic resonance (MR)/X-ray computed tomography (CT) dual-mode imaging functionality. Moreover, the Gd&Yb-LDH monolayer nanosheets achieve an ultrahigh loading of a chemotherapeutic drug (SN38) with a loading content (LC) of 925%, which is a one order of magnitude enhancement compared with previously reported delivery systems of hydrophobic drugs. Interestingly, by further combination with indocyanine green (ICG), in vivo tri-mode imaging, including CT, MR and near infrared fluorescence (NIRF) imaging, is achieved, which enables a noninvasive visualization of cancer cell distribution with deep spatial resolution and high sensitivity. In addition, in vitro and in vivo therapeutic evaluations demonstrate an extremely high tri-mode synergetic anticancer activity and superior biocompatibility of SN38&ICG/Gd&Yb-LDH. Therefore, this work demonstrates a paradigm for the synthesis of novel multifunctional 2D monolayer materials via a facile "bottom-up" route, which shows promising applications in cancer synergetic theranostics.
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Affiliation(s)
- Xuan Mei
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Jialing Ma
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Xue Bai
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Xin Zhang
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Shaomin Zhang
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Min Wei
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - David G Evans
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
| | - Xue Duan
- State Key Laboratory of Chemical Resource Engineering , Beijing Advanced Innovation Center for Soft Matter Science and Engineering , Beijing University of Chemical Technology , Beijing 100029 , P. R. China . ;
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