1
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Hassan N, Ajmal Z, Liang Heng S, Fahmi Fawy K, Mahmood S, Mushtaq F, Albaqami MD, Mohammad S, Rasool RT, Ashraf GA. Fabrication of a sustainable superhydrophobic surface of Ag-NPs@SA on copper alloy for corrosion resistance, photocatalysis, and simulated distribution of Ag atoms. Analyst 2024; 149:3245-3262. [PMID: 38687206 DOI: 10.1039/d3an02182c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Artificial superhydrophobic surfaces that do not absorb water, like the lotus leaf, show tremendous promise in numerous applications. However, superhydrophobic surfaces are rarely used because of their low stability and endurance. A stable organic superhydrophobic surface (SHS) composed of novel morphology Ag-nanoparticles (NPs) has been fabricated on a copper alloy via etching, immersion, spraying, and annealing treatment, along with a static water contact angle (WCA) of 158 ± 1° and sliding angle (SA) less than 2°. The surface texture, composition, and morphology of the substrate surfaces were explored by using X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersive spectroscopy, and DFT-based Ag atom distribution. The anti-corrosion study of non-coated and Ag-NP-coated copper alloy was undertaken using electrochemical impedance spectroscopy. Ag-NPs +SA@SHS enhanced the corrosion resistance as compared with bare Cu alloy. The water droplet rolled down the coated Cu alloy, removed the chalk powder from the surface, and indicated an excellent self-cleaning function. Photodegradation of Congo red (CR) and methylene blue (MB) dye samples was assessed by measuring the absorbance through UV-Visible spectrophotometry, where the Ag-NPs coated on the copper alloy were used as a catalyst. The performance of the SHS@Ag-NPs in the aqueous solution was 99.31% and 98.12% for industrial pollutants (CR and MB), with degradation rates of 5.81 × 10-2 s-1 and 5.89 × 10-2 s-1, respectively. These findings demonstrated a simple, rapid, and low-energy fabrication technique for SHS@Ag-NPs. This research reveals a valuable approach for the fabrication of SHS@Ag-NPs on various substrates to extend the superhydrophobic surfaces with ultra-fast self-healing properties, for outdoor applications such as anti-corrosion, for an innovative approach for the remediation of polluted water treatment, and for industrial applications.
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Affiliation(s)
- Noor Hassan
- College of Chemistry and Material Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China.
| | - Zeeshan Ajmal
- College of Chemistry and Material Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, China.
| | - Sun Liang Heng
- Rail Transit College, Chengdu Industry and Trade College, Chengdu, 611730, China.
| | - Khaled Fahmi Fawy
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Sajid Mahmood
- Green Chemicals & Energy Process Development Laboratory, China Beacons Institute, University of Nottingham Ningbo, Ningbo 315040, China
| | - Fazila Mushtaq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan
| | - Munirah D Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saikh Mohammad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Raqiqa Tur Rasool
- Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang, 321004, China
| | - Ghulam Abbas Ashraf
- Key Laboratory of Integrated Regulation and Resources Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China.
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2
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Cabrera-German D, Martínez-Gil M, Fuentes-Ríos L, Montiel-González Z, Mazón-Montijo DA, Sotelo-Lerma M. Insights into the SILAR Processing of Cu xZn 1-xS Thin Films via a Chemical, Structural, and Optoelectronic Assessment. ACS OMEGA 2023; 8:48056-48070. [PMID: 38144126 PMCID: PMC10734041 DOI: 10.1021/acsomega.3c06848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/23/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023]
Abstract
Careful analysis of the chemical state of CuxZn1-xS thin films remains an underdeveloped topic although it is key to a better understanding of the phase transformations and the linking between structural and optoelectronic properties needed for tuning the performance of CuxZn1-xS-based next-generation energy devices. Here, we propose a chemical formulation and formation mechanism, providing insights into the successive ionic layer adsorption and reaction (SILAR) processing of CuxZn1-xS, in which the copper concentration directly affects the behavior of the optoelectronic properties. Via chemical, optoelectronic, and structural characterization, including quantitative X-ray photoelectron spectroscopy, we determine that the CuxZn1-xS thin films at low copper concentration are composed of ZnS, metastable CuxZn1-xS, and CuS, where the evidence suggests that a depth compositional gradient exists, which contrasts with homogeneous films reported in the literature. The oxidation states for copper and sulfide species indicate that the films grow following a formation mechanism governed by ionic exchange and diffusion processes. At high copper concentrations, the CuxZn1-xS thin films are covellite CuS that grew on a ZnS seed layer. Hence, this work reiterates that future research related to fine-tuning the application of this material requires a careful analysis of the depth-profile compositional and structural characteristics that can enable high conductivity and transparency.
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Affiliation(s)
- Dagoberto Cabrera-German
- Departamento
de Investigación en Polímeros y Materiales, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, México
| | - Miguel Martínez-Gil
- Departamento
de Física, Matemáticas e Ingeniería, Universidad de Sonora, Campus Navojoa, Navojoa, Sonora 85880, México
| | - Lorenzo Fuentes-Ríos
- Departamento
de Investigación en Polímeros y Materiales, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, México
| | - Zeuz Montiel-González
- CONAHCYT-Centro
de Investigación en Materiales Avanzados S. C., subsede Monterrey, Apodaca, Nuevo Leon 66628, México
- Laboratorio
de Diseño y Optimización de Recubrimientos Avanzados
(DORA-Lab), CIMAV-Mty/TECNL-CIIT, Parque
de Investigación e Innovación Tecnológica, Apodaca, Nuevo Leon 66629, México
| | - Dalia Alejandra Mazón-Montijo
- Laboratorio
de Diseño y Optimización de Recubrimientos Avanzados
(DORA-Lab), CIMAV-Mty/TECNL-CIIT, Parque
de Investigación e Innovación Tecnológica, Apodaca, Nuevo Leon 66629, México
- CONAHCYT-Tecnológico
Nacional de México campus Nuevo León (TECNL), Centro
de Investigación e Innovación Tecnológica (CIIT), Apodaca, Nuevo Leon 66629, México
| | - Mérida Sotelo-Lerma
- Departamento
de Investigación en Polímeros y Materiales, Universidad de Sonora, Blvd. Luis Encinas y Rosales s/n, Hermosillo, Sonora 83000, México
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3
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Kahk JM, Lischner J. Combining the Δ-Self-Consistent-Field and GW Methods for Predicting Core Electron Binding Energies in Periodic Solids. J Chem Theory Comput 2023. [PMID: 37163299 DOI: 10.1021/acs.jctc.3c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
For the computational prediction of core electron binding energies in solids, two distinct kinds of modeling strategies have been pursued: the Δ-Self-Consistent-Field method based on density functional theory (DFT), and the GW method. In this study, we examine the formal relationship between these two approaches and establish a link between them. The link arises from the equivalence, in DFT, between the total energy difference result for the first ionization energy, and the eigenvalue of the highest occupied state, in the limit of infinite supercell size. This link allows us to introduce a new formalism, which highlights how in DFT─even if the total energy difference method is used to calculate core electron binding energies─the accuracy of the results still implicitly depends on the accuracy of the eigenvalue at the valence band maximum in insulators, or at the Fermi level in metals. We examine whether incorporating a quasiparticle correction for this eigenvalue from GW theory improves the accuracy of the calculated core electron binding energies, and find that the inclusion of vertex corrections is required for achieving quantitative agreement with experiment.
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Affiliation(s)
- J Matthias Kahk
- Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia
| | - Johannes Lischner
- Department of Physics, Department of Materials, and the Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, United Kingdom
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4
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Zeng X, Shi X, Sun Z. Degradation of atrazine by electroactivation of persulfate using FeCuO@C modified composite cathode: Synergistic activation mechanism. CHEMOSPHERE 2023; 332:138860. [PMID: 37150455 DOI: 10.1016/j.chemosphere.2023.138860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 04/12/2023] [Accepted: 05/04/2023] [Indexed: 05/09/2023]
Abstract
In sulfate radical-based advanced oxidation processes (SR-AOPs), high-efficiency and perdurable materials have drawn considerable interest for use as cathodes, which can effectively degrade refractory organic contaminants through the synergistic electro-activation and transition metal activation of persulfate (PS). Here, the FeCuO@C modified composite cathode (FeCuO@C/AGF) was synthesized via the solvothermal and thermal treatment method based on the CuFe-MOF-74 structure, and the electro-activation PS process (EC/FeCuO@C/AGF/PS) was developed to effectively remove atrazine (ATZ). The surface morphology, electrochemical characteristics, chemical composition, crystal structure, and electrode surface wettability of FeCuO@C/AGF were investigated. It was found that the proposed EC/FeCuO@C/AGF/PS process can successfully remove 100% of ATZ in 20 min at a low current density (2 mA cm-2) and a low PS concentration (0.4 mM), and PS is successfully activated by combining the electrical and transition metal synergistic activation. The FeCuO@C/AGF cathode exhibits outstanding catalytic functionality over a broad pH range (2-9) and remains stable over five successive cycles. Additionally, the active species involved in the reaction as well as the potential ATZ degradation reaction mechanisms and pathways are discussed. Electrochemical oxidation is a process in which both radicals (SO4·-, ·OH, and O2·-) and non-radical (1O2) participate in the degradation of ATZ. The intermediates of the ATZ degradation process were studied upon the toxicity changing, and the toxicity of the intermediates was found to be reduced during degradation. These results present a novel approach toward the establishment of an effective and reliable electrode in SR-AOPs that can efficiently treat pesticide wastewater.
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Affiliation(s)
- Xiuxiu Zeng
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China
| | - Xuelin Shi
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China
| | - Zhirong Sun
- Department of Environmental Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing, 100124, PR China; National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, 100124, PR China.
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Sun J, Garg S, Xie J, Zhang C, Waite TD. Electrochemical Reduction of Nitrate with Simultaneous Ammonia Recovery Using a Flow Cathode Reactor. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:17298-17309. [PMID: 36394539 DOI: 10.1021/acs.est.2c06033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The presence of excessive concentrations of nitrate in industrial wastewaters, agricultural runoff, and some groundwaters constitutes a serious issue for both environmental and human health. As a result, there is considerable interest in the possibility of converting nitrate to the valuable product ammonia by electrochemical means. In this work, we demonstrate the efficacy of a novel flow cathode system coupled with ammonia stripping for effective nitrate removal and ammonia generation and recovery. A copper-loaded activated carbon slurry (Cu@AC), made by a simple, low-cost wet impregnation method, is used as the flow cathode in this novel electrochemical reactor. Use of a 3 wt % Cu@AC suspension at an applied current density of 20 mA cm-2 resulted in almost complete nitrate removal, with 97% of the nitrate reduced to ammonia and 70% of the ammonia recovered in the acid-receiving chamber. A mathematical kinetic model was developed that satisfactorily describes the kinetics and mechanism of the overall nitrate electroreduction process. Minimal loss of Cu to solution and maintenance of nitrate removal performance over extended use of Cu@AC flow electrode augers well for long-term use of this technology. Overall, this study sheds light on an efficient, low-cost water treatment technology for simultaneous nitrate removal and ammonia generation and recovery.
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Affiliation(s)
- Jingyi Sun
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Shikha Garg
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Jiangzhou Xie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
- UNSW Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province214206, P. R. China
| | - Changyong Zhang
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
- UNSW Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province214206, P. R. China
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6
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Marković D, Zille A, Ribeiro AI, Mikučioniene D, Simončič B, Tomšič B, Radetić M. Antibacterial Bio-Nanocomposite Textile Material Produced from Natural Resources. NANOMATERIALS 2022; 12:nano12152539. [PMID: 35893507 PMCID: PMC9331264 DOI: 10.3390/nano12152539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/05/2022]
Abstract
Growing demand for sustainable and green technologies has turned industries and research toward the more efficient utilization of natural and renewable resources. In an effort to tackle this issue, we developed an antibacterial textile nanocomposite material based on cotton and peat fibers with immobilized Cu-based nanostructures. In order to overcome poor wettability and affinity for Cu2+-ions, the substrate was activated by corona discharge and coated with the biopolymer chitosan before the in situ synthesis of nanostructures. Field emission scanning electron microscopy (FESEM) images show that the application of gallic or ascorbic acid as green reducing agents resulted in the formation of Cu-based nanosheets and mostly spherical nanoparticles, respectively. X-ray photoelectron spectroscopy (XPS) analysis revealed that the formed nanostructures consisted of Cu2O and CuO. A higher-concentration precursor solution led to higher copper content in the nanocomposites, independent of the reducing agent and chitosan deacetylation degree. Most of the synthesized nanocomposites provided maximum reduction of the bacteria Escherichia coli and Staphylococcus aureus. A combined modification using chitosan with a higher deacetylation degree, a 1 mM solution of CuSO4 solution, and gallic acid resulted in an optimal textile nanocomposite with strong antibacterial activity and moderate Cu2+-ion release in physiological solutions. Finally, the Cu-based nanostructures partially suppressed the biodegradation of the textile nanocomposite in soil.
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Affiliation(s)
- Darka Marković
- Innovation Centre of the Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
- Correspondence: ; Tel.: +381-1-133-036-13
| | - Andrea Zille
- Centro de Ciência e Tecnologia Têxtil (2C2T), Universidade do Minho, 4800-058 Guimarães, Portugal; (A.Z.); (A.I.R.)
| | - Ana Isabel Ribeiro
- Centro de Ciência e Tecnologia Têxtil (2C2T), Universidade do Minho, 4800-058 Guimarães, Portugal; (A.Z.); (A.I.R.)
| | - Daiva Mikučioniene
- Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu Str. 56-249, LT-51424 Kaunas, Lithuania;
| | - Barbara Simončič
- Faculty of Natural Sciences and Engineering Ljubljana, University of Ljubljana, Aškerčeva cesta 12, 1000 Ljubljana, Slovenia; (B.S.); (B.T.)
| | - Brigita Tomšič
- Faculty of Natural Sciences and Engineering Ljubljana, University of Ljubljana, Aškerčeva cesta 12, 1000 Ljubljana, Slovenia; (B.S.); (B.T.)
| | - Maja Radetić
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia;
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7
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Kan Y, Liu H, Yang Y, Wei Y, Yu Y, Qiu R, Ouyang Y. Two birds with one stone: The route from waste printed circuit board electronic trash to multifunctional biomimetic slippery liquid-infused coating. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Shao Y, Kosari M, Xi S, Zeng HC. Single Solid Precursor-Derived Three-Dimensional Nanowire Networks of CuZn-Silicate for CO 2 Hydrogenation to Methanol. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00726] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Shao
- Integrative Sciences and Engineering Program, NUS Graduate School, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
- Department of Chemical and Biomolecular Engineering, College of Design and Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
| | - Mohammadreza Kosari
- Department of Chemical and Biomolecular Engineering, College of Design and Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, A*STAR (Agency for Science, Technology and Research), 1 Pesek Road, Jurong Island, 627833, Singapore
| | - Hua Chun Zeng
- Integrative Sciences and Engineering Program, NUS Graduate School, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
- Department of Chemical and Biomolecular Engineering, College of Design and Engineering, National University of Singapore, 10 Kent Ridge Crescent, 119260, Singapore
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9
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Multi-slice Ni-doped brochantite modified and polymer crosslinked cellulose paper with high wet stability and oil repellency for water disposal. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Ahmed A, Wang J, Wang W, Okonkwo CJ, Liu N. A practical method to remove perfluorooctanoic acid from aqueous media using layer double hydride system: a prospect for environmental remediation. ENVIRONMENTAL TECHNOLOGY 2022; 43:1026-1037. [PMID: 32819203 DOI: 10.1080/09593330.2020.1812733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
Perfluorooctanoic acid (PFOA) is an organic compound that is persistent and very toxic to living organisms and the environment. In this study, two kinds of Mg-Al-layered double hydroxides (namely LDH-1 and 2) were synthesized using hydrothermal and dry grinding methods and used to adsorb PFOA from aqueous solution. The kinetic study revealed that a pseudo-2nd order model was the best method for describing the kinetics of sorption, which could emphasize the chemical interaction between PFOAs and LDHs. Among the models tested, the Freundlich model was the best fit for the sorption isotherms. The removal rates of PFOA adsorption by LDH-1 and LDH-2 were 90% and 98.9%, respectively, in the lowest time compared with similar past studies using different adsorbents. The currently synthesized LDHs showed the least equilibrium time, without thermal treatment and the need for activation. The research bears prospects for removing PFOA from aqueous media, thereby demonstrating the potential of employing synthesized LDHs in a fixed-bed filter for the environmental remediation of PFOA-contaminated wastewater bodies.
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Affiliation(s)
- Ammara Ahmed
- Institute of Groundwater and Earth Science, Jinan University, Guangzhou, China
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of New Energy and Environment, Jilin University, Changchun, China
| | - Jinxin Wang
- Institute of Groundwater and Earth Science, Jinan University, Guangzhou, China
| | - Wenmin Wang
- Institute of Groundwater and Earth Science, Jinan University, Guangzhou, China
| | - Chioma Joy Okonkwo
- Institute of Groundwater and Earth Science, Jinan University, Guangzhou, China
| | - Na Liu
- Institute of Groundwater and Earth Science, Jinan University, Guangzhou, China
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of New Energy and Environment, Jilin University, Changchun, China
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11
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Rahman T, Martin NP, Jenkins JK, Elzein R, Fast DB, Addou R, Herman GS, Nyman M. Nb 2O 5, LiNbO 3, and (Na, K)NbO 3 Thin Films from High-Concentration Aqueous Nb-Polyoxometalates. Inorg Chem 2022; 61:3586-3597. [PMID: 35148102 DOI: 10.1021/acs.inorgchem.1c03638] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Synthesizing functional materials from water contributes to a sustainable energy future. On the atomic level, water drives complex metal hydrolysis/condensation/speciation, acid-base, ion pairing, and solvation reactions that ultimately direct material assembly pathways. Here, we demonstrate the importance of Nb-polyoxometalate (Nb-POM) speciation in enabling deposition of Nb2O5, LiNbO3, and (Na, K)NbO3 (KNN) from high-concentration solutions, up to 2.5 M Nb for Nb2O5 and ∼1 M Nb for LiNbO3 and KNN. Deposition of KNN from 1 M Nb concentration represents a potentially important advancment in lead-free piezoelectrics, an application that requires thick films. Solution characterization via small-angle X-ray scattering and Raman spectroscopy described the speciation for all precursor solutions as the [HxNb24O72](x-24) POM, as did total pair distribution function analyses of X-ray scattering of amorphous gels prior to conversion to oxides. The tendency of the Nb24-POM to form extended networks without crystallization leads to conformal and well-adhered films. The films were characterized by X-ray diffraction, atomic force microscopy, scanning electron microscopy, ellipsometry, and X-ray photoelectron spectroscopy. As a strategy to convert aqueous deposition solutions from {Nb10}-POMs to {Nb24}-POMs, we devised a general procedure to produce doped Nb2O5 thin films including Ca, Ag, and Cu doping.
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Affiliation(s)
- Tasnim Rahman
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Nicolas P Martin
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Jessica K Jenkins
- School of Chemical, Biological, and Environmental Engineering, 116 Johnson Hall, 105 SW 26th St. Corvallis, Oregon 97331, United States
| | - Radwan Elzein
- School of Chemical, Biological, and Environmental Engineering, 116 Johnson Hall, 105 SW 26th St. Corvallis, Oregon 97331, United States
| | - Dylan B Fast
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Rafik Addou
- School of Chemical, Biological, and Environmental Engineering, 116 Johnson Hall, 105 SW 26th St. Corvallis, Oregon 97331, United States
| | - Gregory S Herman
- School of Chemical, Biological, and Environmental Engineering, 116 Johnson Hall, 105 SW 26th St. Corvallis, Oregon 97331, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
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12
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Sikdar N, Junqueira JRC, Dieckhöfer S, Quast T, Braun M, Song Y, Aiyappa HB, Seisel S, Weidner J, Öhl D, Andronescu C, Schuhmann W. A Metal-Organic Framework derived Cu x O y C z Catalyst for Electrochemical CO 2 Reduction and Impact of Local pH Change. Angew Chem Int Ed Engl 2021; 60:23427-23434. [PMID: 34355835 PMCID: PMC8597168 DOI: 10.1002/anie.202108313] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Indexed: 01/12/2023]
Abstract
Developing highly efficient and selective electrocatalysts for the CO2 reduction reaction to produce value-added chemicals has been intensively pursued. We report a series of Cux Oy Cz nanostructured electrocatalysts derived from a Cu-based MOF as porous self-sacrificial template. Blending catalysts with polytetrafluoroethylene (PTFE) on gas diffusion electrodes (GDEs) suppressed the competitive hydrogen evolution reaction. 25 to 50 wt % teflonized GDEs exhibited a Faradaic efficiency of ≈54 % for C2+ products at -80 mA cm-2 . The local OH- ions activity of PTFE-modified GDEs was assessed by means of closely positioning a Pt-nanoelectrode. A substantial increase in the OH- /H2 O activity ratio due to the locally generated OH- ions at increasing current densities was determined irrespective of the PTFE amount.
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Affiliation(s)
- Nivedita Sikdar
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - João R. C. Junqueira
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Stefan Dieckhöfer
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Thomas Quast
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Michael Braun
- Chemical Technology III; Faculty of Chemistry and CENIDE Center for NanointegrationUniversity Duisburg-EssenCarl-Benz Straße 19947057DuisburgGermany
| | - Yanfang Song
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
- CAS Key Laboratory of Low-Carbon Conversion Science and EngineeringShanghai Advanced Research InstituteChinese Academy of Sciences99 Haike RoadShanghai201203People's Republic of China
| | - Harshitha B. Aiyappa
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Sabine Seisel
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Jonas Weidner
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Denis Öhl
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Corina Andronescu
- Chemical Technology III; Faculty of Chemistry and CENIDE Center for NanointegrationUniversity Duisburg-EssenCarl-Benz Straße 19947057DuisburgGermany
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
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13
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Sikdar N, Junqueira JRC, Dieckhöfer S, Quast T, Braun M, Song Y, Aiyappa HB, Seisel S, Weidner J, Öhl D, Andronescu C, Schuhmann W. Ein MOF‐basierter Cu
x
O
y
C
z
‐Katalysator für die elektrochemische CO
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‐Reduktion und die Auswirkungen der lokalen pH‐Änderung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Nivedita Sikdar
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - João R. C. Junqueira
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Stefan Dieckhöfer
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Thomas Quast
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Michael Braun
- Chemical Technology III Faculty of Chemistry and CENIDE Center for Nanointegration University Duisburg-Essen Carl-Benz Straße 199 47057 Duisburg Deutschland
| | - Yanfang Song
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute Chinese Academy of Sciences 99 Haike Road Shanghai 201203 People's Republic of China
| | - Harshitha B. Aiyappa
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Sabine Seisel
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Jonas Weidner
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Denis Öhl
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
| | - Corina Andronescu
- Chemical Technology III Faculty of Chemistry and CENIDE Center for Nanointegration University Duisburg-Essen Carl-Benz Straße 199 47057 Duisburg Deutschland
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Deutschland
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14
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Tsurkan D, Simon P, Schimpf C, Motylenko M, Rafaja D, Roth F, Inosov DS, Makarova AA, Stepniak I, Petrenko I, Springer A, Langer E, Kulbakov AA, Avdeev M, Stefankiewicz AR, Heimler K, Kononchuk O, Hippmann S, Kaiser D, Viehweger C, Rogoll A, Voronkina A, Kovalchuk V, Bazhenov VV, Galli R, Rahimi-Nasrabadi M, Molodtsov SL, Rahimi P, Falahi S, Joseph Y, Vogt C, Vyalikh DV, Bertau M, Ehrlich H. Extreme Biomimetics: Designing of the First Nanostructured 3D Spongin-Atacamite Composite and its Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101682. [PMID: 34085323 DOI: 10.1002/adma.202101682] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/27/2021] [Indexed: 06/12/2023]
Abstract
The design of new composite materials using extreme biomimetics is of crucial importance for bioinspired materials science. Further progress in research and application of these new materials is impossible without understanding the mechanisms of formation, as well as structural features at the molecular and nano-level. It presents a challenge to obtain a holistic understanding of the mechanisms underlying the interaction of organic and inorganic phases under conditions of harsh chemical reactions for biopolymers. Yet, an understanding of these mechanisms can lead to the development of unusual-but functional-hybrid materials. In this work, a key way of designing centimeter-scale macroporous 3D composites, using renewable marine biopolymer spongin and a model industrial solution that simulates the highly toxic copper-containing waste generated in the production of printed circuit boards worldwide, is proposed. A new spongin-atacamite composite material is developed and its structure is confirmed using neutron diffraction, X-ray diffraction, high-resolution transmission electron microscopy/selected-area electron diffraction, X-ray photoelectron spectroscopy, near-edge X-ray absorption fine structure spectroscopy, and electron paramagnetic resonance spectroscopy. The formation mechanism for this material is also proposed. This study provides experimental evidence suggesting multifunctional applicability of the designed composite in the development of 3D constructed sensors, catalysts, and antibacterial filter systems.
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Affiliation(s)
- Dmitry Tsurkan
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
| | - Paul Simon
- Max-Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187, Dresden, Germany
| | - Christian Schimpf
- Institute of Materials Science, TU Bergakademie Freiberg, 09599, Freiberg, Germany
| | - Mykhaylo Motylenko
- Institute of Materials Science, TU Bergakademie Freiberg, 09599, Freiberg, Germany
| | - David Rafaja
- Institute of Materials Science, TU Bergakademie Freiberg, 09599, Freiberg, Germany
| | - Friedrich Roth
- Institute of Experimental Physics, TU Bergakademie Freiberg, 09599, Freiberg, Germany
| | - Dmytro S Inosov
- Institute of Solid State and Materials Physics, TU Dresden, D-01069, Dresden, Germany
- Dresden-Würzburg Cluster of Excellence on Complexity and Topology in Quantum Matter (ct.qmat), TU Dresden, D-01062, Dresden, Germany
| | - Anna A Makarova
- Institute of Chemistry and Biochemistry, Free University of Berlin, D-14195, Berlin, Germany
| | - Izabela Stepniak
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, ul. Berdychowo 4, Poznan, 60-965, Poland
| | - Iaroslav Petrenko
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
| | - Armin Springer
- Medizinische Biologie und Elektronenmikroskopisches Zentrum (EMZ), Strempelstraße 14, 18057, Rostock, Germany
- Universitätsmedizin Rostock, Strempelstraße 14, 18057, Rostock, Germany
| | - Enrico Langer
- Institute of Semiconductors and Microsystems, TU Dresden, 01062, Dresden, Germany
| | - Anton A Kulbakov
- Institute of Solid State and Materials Physics, TU Dresden, D-01069, Dresden, Germany
- Dresden-Würzburg Cluster of Excellence on Complexity and Topology in Quantum Matter (ct.qmat), TU Dresden, D-01062, Dresden, Germany
| | - Maxim Avdeev
- Australian Nuclear Science and Technology Organisation, New Illawarra Road, Lucas Heights, NSW, 2234, Australia
| | - Artur R Stefankiewicz
- Center for Advanced Technologies, Adam Mickiewicz University, Poznań, Poland
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Korbinian Heimler
- Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599, Freiberg, Germany
| | - Olga Kononchuk
- Institute of Chemical Technology, TU Bergakademie Freiberg, Leipziger Straße 29, 09599, Freiberg, Germany
| | - Sebastian Hippmann
- Institute of Chemical Technology, TU Bergakademie Freiberg, Leipziger Straße 29, 09599, Freiberg, Germany
| | - Doreen Kaiser
- Institute of Chemical Technology, TU Bergakademie Freiberg, Leipziger Straße 29, 09599, Freiberg, Germany
| | - Christine Viehweger
- Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599, Freiberg, Germany
| | - Anika Rogoll
- Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599, Freiberg, Germany
| | - Alona Voronkina
- Department of Pharmacy, National Pirogov Memorial Medical University, Vinnytsia, 21018, Ukraine
| | - Valentine Kovalchuk
- Department of Pharmacy, National Pirogov Memorial Medical University, Vinnytsia, 21018, Ukraine
- Department of Microbiology, National Pirogov Memorial Medical University, Vinnytsia, 21018, Ukraine
| | | | - Roberta Galli
- Department of Medical Physics and Biomedical Engineering, Clinical Sensoring and Monitoring - Anesthesiology and Intensive Care Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Mehdi Rahimi-Nasrabadi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, 1951683759, Iran
- Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, 1951683759, Iran
- Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics, ITMO University, St. Petersburg, 197101, Russia
| | - Serguei L Molodtsov
- Institute of Experimental Physics, TU Bergakademie Freiberg, 09599, Freiberg, Germany
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Parvaneh Rahimi
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
| | - Sedigheh Falahi
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
| | - Yvonne Joseph
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
| | - Carla Vogt
- Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599, Freiberg, Germany
| | - Denis V Vyalikh
- Donostia International Physics Center (DIPC), Donostia-San Sebastián, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48011, Spain
| | - Martin Bertau
- Institute of Chemical Technology, TU Bergakademie Freiberg, Leipziger Straße 29, 09599, Freiberg, Germany
| | - Hermann Ehrlich
- Institut of Electronic- und Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599, Freiberg, Germany
- Center for Advanced Technologies, Adam Mickiewicz University, Poznań, Poland
- Centre for Climate Change Research, Toronto, ON, M4P 1J4, Canada
- A.R. Environmental Solutions, ICUBE-University of Toronto Mississauga, Mississauga, ON, L5L 1C6, Canada
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15
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Zhang W, Che J, Xia L, Wen P, Chen J, Ma B, Wang C. Efficient removal and recovery of arsenic from copper smelting flue dust by a roasting method: Process optimization, phase transformation and mechanism investigation. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125232. [PMID: 33951866 DOI: 10.1016/j.jhazmat.2021.125232] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/05/2021] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
The efficient removal and recovery of arsenic from copper smelting flue dust have received widespread attention due to its extremely high toxicity and carcinogenicity. In this research, a roasting method used for treating the dust at a relatively low temperature (300-400 ℃), with adding sulfuric acid and bitumite, was proposed, in which the reduction of As(Ⅴ) and oxidation of arsenic sulfides were achieved simultaneously. It was proved by thermodynamic analysis and experiments that adding sulfuric acid was favorable for the removal of arsenic, through enhancing the thermodynamic driving force and promoting the transformation of arsenate and arsenic sulfides to As2O3. The phase transformation of arsenic was analyzed using XRD, SEM-EDS and XPS, which indicated that coal addition, roasting temperature and H2SO4 dosage play essential roles in arsenic removal. Based on the lab-scale experiments, the optimal conditions for arsenic removal were found to be at the roasting temperature of 300-400 °C, roasting time of 2-3 h, coal addition of 5% and H2SO4 dosage of 0.2-0.3 mL/g. Around 98% of arsenic was volatilized from the dust, while arsenic content in the residue was decreased to 0.57%. Eventually, arsenic was recovered as As2O3 with a high purity of 99.05%.
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Affiliation(s)
- Wenjuan Zhang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jianyong Che
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Liu Xia
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Peicheng Wen
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jun Chen
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Baozhong Ma
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Chengyan Wang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China; School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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16
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Rapid removal of organic pollutants by a novel persulfate/brochantite system: Mechanism and implication. J Colloid Interface Sci 2020; 585:400-407. [PMID: 33307308 DOI: 10.1016/j.jcis.2020.11.106] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/07/2020] [Accepted: 11/26/2020] [Indexed: 01/28/2023]
Abstract
Using natural minerals as persulfate activators can develop effective and economical in situ chemical oxidation technology for environmental remediation. Yet, few natural minerals can provide a high activation efficiency. Here, we demonstrate that brochantite (Cu4SO4(OH)6), a natural mineral, can be used as a persulfate activator for the rapid degradation of tetracycline hydrochloride (TC-H). Approximately 70% of TC-H was removed in Cu4SO4(OH)6/PDS within 5 min, which much higher than that of Cu3P (61.99%), CuO (29.75%), CNT (25.83%), Fe2O3, (14.48%) and MnO2 (9.76%). Experiments and theoretical calculations suggested that surface copper acts as active sites induce the production of free radicals. The synergistic effect of Cu/S promotes the cycle between Cu+/Cu2+. Sulfate radicals and hydroxyl radicals are the main reactive oxygen species that are responsible for the rapid removal of TC-H. The findings of this work show a novel persulfate/brochantite system and provide useful information for the environmental remediation.
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17
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Ibrahim MM, Mersal GA, Fallatah AM, Saracoglu M, Kandemirli F, Alharthi S, Szunerits S, Boukherroub R, Ryl J, Amin MA. Electrochemical, theoretical and surface physicochemical studies of the alkaline copper corrosion inhibition by newly synthesized molecular complexes of benzenediamine and tetraamine with π acceptor. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Duan X, Liu S, Huang E, Shen X, Wang Z, Li S, Jin C. Superhydrophobic and antibacterial wood enabled by polydopamine-assisted decoration of copper nanoparticles. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125145] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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19
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Wu H, Or VW, Gonzalez-Calzada S, Grassian VH. CuS nanoparticles in humid environments: adsorbed water enhances the transformation of CuS to CuSO 4. NANOSCALE 2020; 12:19350-19358. [PMID: 32940281 DOI: 10.1039/d0nr05934j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Covellite copper sulfide nanoparticles (CuS NPs) have attracted immense research interest due to their widespread use in a range of biological and energy applications. As such, it is crucial to understand the transformations of these nanomaterials and how these transformations influence the behavior of these nanoparticles in environmental and biological systems. This study specifically focuses on understanding the role of water vapor and adsorbed water in the transformation of CuS NP surfaces to CuSO4 in humid environments. Surface sulfide ions are oxidized to sulfate by oxygen in the presence of water vapor, as detected by atomic force microscopy based photothermal infrared spectroscopy (AFM-PTIR) and in situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. These results show that the transformation of CuS to CuSO4 is highly dependent on relative humidity (RH). While sulfide to sulfate conversion is not observed to a great extent at low RH (<20%), there is significant conversion at higher RH (>80%). X-ray photoelectron spectroscopy (XPS) analysis confirms that sulfide is irreversibly oxidized to sulfate. Furthermore, it shows that initially, the Cu ions possess the original oxidation state similar to the original covellite, i.e. Cu+, but they are oxidized to Cu2+ at higher RH. The formation of CuSO4 has also been confirmed by HRTEM. These analyses show that adsorbed water on the NP surfaces enhances the conversion of sulfide to sulfate and the oxidation of Cu+ to Cu2+ in the presence of molecular oxygen.
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Affiliation(s)
- Haibin Wu
- Department of Chemistry & Biochemistry, University of California San Diego, La Jolla, CA 92093, USA.
| | - Victor W Or
- Department of Chemistry & Biochemistry, University of California San Diego, La Jolla, CA 92093, USA.
| | | | - Vicki H Grassian
- Department of Chemistry & Biochemistry, University of California San Diego, La Jolla, CA 92093, USA. and Departments of Nanoengineering, University of California San Diego, La Jolla, CA 92093, USA and Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093, USA
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20
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Magnetism of Kesterite Cu 2ZnSnS 4 Semiconductor Nanopowders Prepared by Mechanochemically Assisted Synthesis Method. MATERIALS 2020; 13:ma13163487. [PMID: 32784643 PMCID: PMC7476044 DOI: 10.3390/ma13163487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 11/25/2022]
Abstract
High energy ball milling is used to make first the quaternary sulfide Cu2ZnSnS4 raw nanopowders from two different precursor systems. The mechanochemical reactions in this step afford cubic pre-kesterite with defunct semiconducting properties and showing no solid-state 65Cu and 119Sn MAS NMR spectra. In the second step, each of the milled raw materials is annealed at 500 and 550 °C under argon to result in tetragonal kesterite nanopowders with the anticipated UV-Vis-determined energy band gap and qualitatively correct NMR characteristics. The magnetic properties of all materials are measured with SQUID magnetometer and confirm the pre-kesterite samples to show typical paramagnetism with a weak ferromagnetic component whereas all the kesterite samples to exhibit only paramagnetism of relatively decreased magnitude. Upon conditioning in ambient air for 3 months, a pronounced increase of paramagnetism is observed in all materials. Correlations between the magnetic and spectroscopic properties of the nanopowders including impact of oxidation are discussed. The magnetic measurements coupled with NMR spectroscopy appear to be indispensable for comprehensive kesterite evaluation.
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21
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Takatsu H, Ochi M, Yamashina N, Namba M, Kuroki K, Terashima T, Kageyama H. Epitaxial Stabilization of SrCu 3O 4 with Infinite Cu 3/2O 2 Layers. Inorg Chem 2020; 59:10042-10047. [PMID: 32639728 DOI: 10.1021/acs.inorgchem.0c01213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We report the epitaxial thin-film synthesis of SrCu3O4 with infinitely stacked Cu3O4 layers composed of edge-sharing CuO4 square planes, using molecular-beam epitaxy. Experimental and theoretical characterizations showed that this material is a metastable phase that can exist by applying tensile biaxial strain from the (001)-SrTiO3 substrate. SrCu3O4 shows an insulating electrical resistivity in accordance with the Cu2+ valence state revealed by X-ray photoelectron spectroscopy. First-principles calculations also indicated that the unoccupied d3z2-r2 band becomes substantially stabilized owing to the absence of apical anions, in contrast to A2Cu3O4Cl2 (A = Sr, Ba) with an A2Cl2 block layer and therefore a trans-CuO4Cl2 octahedron. These results suggest that SrCu3O4 is a suitable parent material for electron-doped superconductivity based on the Cu3O4 plane.
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Affiliation(s)
- Hiroshi Takatsu
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Masayuki Ochi
- Department of Physics, Osaka University, Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Naoya Yamashina
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Morito Namba
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuhiko Kuroki
- Department of Physics, Osaka University, Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Takahito Terashima
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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22
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Godiya CB, Sayed SM, Xiao Y, Lu X. Highly porous egg white/polyethyleneimine hydrogel for rapid removal of heavy metal ions and catalysis in wastewater. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104509] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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23
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Ahmed A, Francis A, Liu N, Liu YY. A Prospect for Environmental Remediation of Perchlorate via Cost-Effective Pinus Leaves and Dandelion Flower Powder-based Layer Double Hydride (LDH) Sorbents. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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24
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Chen M, Li K, Luo Y, Shi J, Weng C, Gao L, Duan G. Improved SERS activity of non-stoichiometric copper sulfide nanostructures related to charge-transfer resonance. Phys Chem Chem Phys 2020; 22:5145-5153. [PMID: 32073003 DOI: 10.1039/c9cp05930j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The low enhancement factor of semiconductor SERS substrates is a major obstacle for their practical application. Therefore, there is a need to explore the facile synthesis of new SERS substrates and reveal the SERS enhancement mechanism. Here, we develop a simple, facile and low-cost two-step method to synthesize copper sulfide based nanostructures with different Cu7.2S4 contents. The as-synthesized sample is composed of nanosheets with the CuS phase structure. With the increase of the annealing temperature to 300 °C, the CuS content gradually decreases and disappears, and the content of Cu7.2S4 and CuSO4 appears and gradually increases. At the annealing temperature of 350 °C, only CuSO4 exists. Compared with pure CuS or pure CuSO4, the detection limit of R6G molecules is the lowest for the composite sample with a higher content of Cu7.2S4, indicating that the introduction of non-stoichiometric Cu7.2S4 can improve the SERS performance and the higher content of Cu7.2S4 leads to a higher SERS activity. Furthermore, to investigate the SERS mechanism, the energy band structures and energy-level diagrams of different probe molecules over CuS, Cu7.2S4 and CuxS are studied by DFT calculations. Theoretical calculations indicate that the excellent SERS behavior depends on charge transfer resonance. Our work provides a general approach for the construction of excellent metal compound semiconductor SERS active substrates.
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Affiliation(s)
- Menglei Chen
- College of Physics and Electronic Technology, Anhui Normal University, Wuhu, 241000, Anhui, P. R. China.
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25
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Wu J, Wu D, Zhao M, Wen Z, Jiang J, Zeng J, Zhao J. Rod-shaped Cu 1.81Te as a novel cathode material for aluminum-ion batteries. Dalton Trans 2020; 49:729-736. [PMID: 31850464 DOI: 10.1039/c9dt04157e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Aluminum-ion batteries (AIBs) are supposed to be one of the energy storage systems with great potentialities on account of their high safety, low cost and high theoretical volumetric capacity. Herein, we report a novel rod-shaped Cu1.81Te cathode material for AIBs. At 40 mA g-1, the initial discharge capacity can reach 144 mA h g-1. The diffusion coefficient of Al3+ calculated by the galvanostatic intermittent titration technique (GITT) and cyclic voltammetry (CV) tests at different scan rates is larger than that in sulfides, indicating that telluride has faster kinetics. The results of ex situ X-ray photoelectron spectroscopy (XPS), ex situ X-ray diffraction (XRD) and 27Al nuclear magnetic resonance (NMR) prove that the mechanism of the charging and discharging processes is the reversible intercalation and deintercalation of Al3+, which is very important for the subsequent researchers to understand and investigate the mechanism of the Al/Cu1.81Te battery. This work also proves that telluride can also be used as a cathode material for aluminum storage.
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Affiliation(s)
- Junnan Wu
- State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P.R. China.
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26
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Yang Z, Li H, Qu W, Zhang M, Feng Y, Zhao J, Yang J, Shih K. Role of Sulfur Trioxide (SO 3) in Gas-Phase Elemental Mercury Immobilization by Mineral Sulfide. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3250-3257. [PMID: 30802042 DOI: 10.1021/acs.est.8b07317] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mineral sulfide based sorbents were superior alternatives to traditional activated carbons for elemental mercury (Hg0) immobilization in industrial flue gas. A systematical study concerning the influence of sulfur trioxide (SO3) on Hg0 adsorption over a nanosized copper sulfide (Nano-CuS) was for the first time conducted. SO3 was found to significantly inhibit the Hg0 removal over Nano-CuS partially because SO3 oxidized the reduced sulfur species (sulfide) with high affinity to mercury to its oxidized sulfur species (sulfate). Moreover, a brand new "oxidation-reduction" mechanism that led to a simultaneous oxidation of sulfide and reduction of mercury on the immobilized mercury sulfide (HgS) was responsible for the inhibitory effect. Even though the released Hg0 from the reduction of mercury in HgS could be oxidized by SO3 into its sulfate form (HgSO4) and recaptured by the sorbent, the "oxidation-reduction" mechanism still compromised the Hg0 capture performance of the Nano-CuS because HgSO4 deposited on the sorbent surface could be easily leached out when environmentally exposed. These new insights into the role of SO3 in Hg0 capture over Nano-CuS can help to determine possible solutions and facilitate the application of mineral sulfide sorbents as outstanding alternatives to activated carbons for Hg0 immobilization in industrial flue gas.
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Affiliation(s)
- Zequn Yang
- Department of Civil Engineering , The University of Hong Kong , Hong Kong , Hong Kong SAR , China
| | - Hailong Li
- School of Energy Science and Engineering , Central South University , Changsha 410083 , China
| | - Wenqi Qu
- School of Energy Science and Engineering , Central South University , Changsha 410083 , China
| | - Mingguang Zhang
- School of Energy Science and Engineering , Central South University , Changsha 410083 , China
| | - Yong Feng
- Department of Civil Engineering , The University of Hong Kong , Hong Kong , Hong Kong SAR , China
| | - Jiexia Zhao
- School of Energy Science and Engineering , Central South University , Changsha 410083 , China
| | - Jianping Yang
- School of Energy Science and Engineering , Central South University , Changsha 410083 , China
| | - Kaimin Shih
- Department of Civil Engineering , The University of Hong Kong , Hong Kong , Hong Kong SAR , China
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27
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Godiya CB, Liang M, Sayed SM, Li D, Lu X. Novel alginate/polyethyleneimine hydrogel adsorbent for cascaded removal and utilization of Cu 2+ and Pb 2+ ions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 232:829-841. [PMID: 30530273 DOI: 10.1016/j.jenvman.2018.11.131] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/25/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
Heavy metal ion pollution leads to severe health risk to human beings. Herein, a natural and highly efficient sodium alginate (ALG)/polyethyleneimine (PEI) composite hydrogel was designed and fabricated for the removal of heavy metal ions from wastewater. The adsorption of heavy metal ions on the ALG based, 3D composite hydrogel were thoroughly investigated in this study. Furthermore, the in situ reduced metal nanoparticle-loaded ALG/PEI composite hydrogel provided us a sustainable utilization route of the heavy metal ion with a promising adsorption-catalysis ability. In general, this research will present an effective and practical paradigm for the cascaded treatment and recycling of heavy metal ions in wastewater.
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Affiliation(s)
- Chirag B Godiya
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, Jiangsu Province, China
| | - Ma Liang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, Jiangsu Province, China
| | - Sayed Mir Sayed
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, Jiangsu Province, China
| | - Dawei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
| | - Xiaolin Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, Jiangsu Province, China.
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Yuan DJ, Hengne AM, Saih Y, Huang KW. Nonoxidative Dehydrogenation of Methanol to Methyl Formate through Highly Stable and Reusable CuMgO-Based Catalysts. ACS OMEGA 2019; 4:1854-1860. [PMID: 31459440 PMCID: PMC6648458 DOI: 10.1021/acsomega.8b03069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 01/14/2019] [Indexed: 06/10/2023]
Abstract
Nonoxidative dehydrogenation of methanol to methyl formate over a CuMgO-based catalyst was investigated. Although the active site is metallic copper (Cu0), the best reaction conditions were obtained by tuning the ratio of Cu/Mg and doping the catalyst with 1 wt % of Pd to achieve a very specific activity for methyl formate synthesis. On the basis of the CO2 temperature-programmed desorption study, the basic strength of the catalyst plays a role in the efficient conversion of methanol to methyl formate via dehydrogenation. These CuMgO-based catalysts show excellent thermal stability during the reaction and the regeneration processes. Approx. 80% methanol conversion with constant selectivity to methyl formate was achieved even after 4 rounds of usage for a total reaction time exceeding 200 h, indicative of their potential for practical applications.
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29
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Hasan M, Meiou W, Yulian L, Ullah S, Ta HQ, Zhao L, Mendes RG, Malik ZP, Ahmad N, Liu Z, Rümmeli MH. Direct chemical vapor deposition synthesis of large area single-layer brominated graphene. RSC Adv 2019; 9:13527-13532. [PMID: 35519551 PMCID: PMC9063914 DOI: 10.1039/c9ra01152h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/22/2019] [Accepted: 04/17/2019] [Indexed: 11/21/2022] Open
Abstract
Graphene and its derivatives such as functionalized graphene are considered to hold significant promise in numerous applications. Within that context, halogen functionalization is exciting for radical and nucleophilic substitution reactions as well as for the grafting of organic moieties. Historically, the successful covalent doping of sp2 carbon with halogens, such as bromine, was demonstrated with carbon nanotubes. However, the direct synthesis of brominated graphene has thus far remained elusive. In this study we show how large area brominated graphene with C–Br bonds can be achieved directly (i.e. a single step) using hydrogen rich low pressure chemical vapor deposition. The direct synthesis of brominated graphene could lead to practical developments. In this study we present the first direct synthesis of large area, single layer, crystalline graphene with covalently doped bromine.![]()
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30
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Mechanochemical synthesis of Si/Cu 3Si-based composite as negative electrode materials for lithium ion battery. Sci Rep 2018; 8:12695. [PMID: 30139990 PMCID: PMC6107536 DOI: 10.1038/s41598-018-30703-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 08/02/2018] [Indexed: 11/20/2022] Open
Abstract
Mechanochemical synthesis of Si/Cu3Si-based composite as negative electrode materials for lithium ion battery is investigated. Results indicate that CuO is decomposed and alloyed with Si forming amorphous Cu-Si solid solution due to high energy impacting during high energy mechanical milling (HEMM). Upon carbonization at 800 °C, heating energy induces Cu3Si to crystallize in nanocrystalline/amorphous Si-rich matrix enhancing composite rigidity and conductivity. In addition, residual carbon formed on outside surface of composite powder as a buff space further alleviates volume change upon lithiation/delithiation. Thus, coin cell made of C-coated Si/Cu3Si-based composite as negative electrode (active materials loading, 2.3 mg cm−2) conducted at 100 mA g−1 performs the initial charge capacity of 1812 mAh g−1 (4.08 mAh cm−2) columbic efficiency of 83.7% and retained charge capacity of 1470 mAh g−1 (3.31 mAh cm−2) at the end of the 100th cycle, opening a promised window as negative electrode materials for lithium ion batteries.
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31
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Jiang J, Li H, Fu T, Hwang BJ, Li X, Zhao J. One-Dimensional Cu 2- xSe Nanorods as the Cathode Material for High-Performance Aluminum-Ion Battery. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17942-17949. [PMID: 29718651 DOI: 10.1021/acsami.8b03259] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, nonstoichiometric Cu2- xSe fabricated by a facile water evaporation process is used as high-performance Al-ion battery cathode materials. Cu2- xSe electrodes show high reversible capacity and excellent cycling stability, even at a high current density of 200 mA g-1, the specific charge capacity in the initial cycle is 241 mA h g-1 and maintains 100 mA h g-1 after 100 cycles with a Coulombic efficiency of 96.1%, showing good capacity retention. The prominent kinetics of Cu2- xSe electrodes is also revealed by the GITT, which is attributed to the ultrahigh electronic conductivity of the Cu2- xSe material. Most importantly, an extensive research is dedicated to investigating the detailed intercalation and de-intercalation of relatively large chloroaluminate anions into the cubic Cu2- xSe, which is conducive to better understand the reaction mechanism of the Al/Cu2- xSe battery.
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Affiliation(s)
- Jiali Jiang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, College of Chemistry and Chemical Engineering , Xiamen University , No. 422 Siming South Road , Xiamen , Fujian 361005 , China
| | - He Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, College of Chemistry and Chemical Engineering , Xiamen University , No. 422 Siming South Road , Xiamen , Fujian 361005 , China
| | - Tao Fu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, College of Chemistry and Chemical Engineering , Xiamen University , No. 422 Siming South Road , Xiamen , Fujian 361005 , China
| | - Bing-Joe Hwang
- Nano Electrochemistry Laboratory, Department of Chemical Engineering , National Taiwan University of Science and Technology , Taipei 106 , Taiwan
| | - Xue Li
- National and Local Joint Engineering Laboratory for Lithium-ion Batteries and Materials Preparation Technology, Key Laboratory of Advanced Battery Materials of Yunnan Province, Faculty of Metallurgical and Energy Engineering , Kunming University of Science and Technology , No. 68 Wenchang Road , Kunming , Yunnan 650093 , China
| | - Jinbao Zhao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, College of Chemistry and Chemical Engineering , Xiamen University , No. 422 Siming South Road , Xiamen , Fujian 361005 , China
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32
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Yi C, Zhu B, Chen Y, Du X, Yang Y, Liu J, Zhang Z. Adsorption and protective behavior of BTAH on the initial atmospheric corrosion process of copper under thin film of chloride solutions. Sci Rep 2018; 8:5606. [PMID: 29618834 PMCID: PMC5884792 DOI: 10.1038/s41598-018-23927-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 03/21/2018] [Indexed: 12/02/2022] Open
Abstract
The initial corrosion process of copper and the corrosion resistance mechanism of Benzotriazole under chloride-containing thin electrolyte layer (TEL) was investigated. After theoretical calculation and experimental characterization, the forming process of [Cu(I)BTA]n film was chemically adsorbed on copper surface by Cu-N bond tightly; corrosion rate increased as TEL thickness decreased. Whilst, energy distribution plot of electrochemical noise provided the validity of corrosion type, and the purported corrosion energy (Ec) deduced from electrochemical noise was approximately proportion to corrosion rate (1/Rct) with and without the anticorrosion film, which denoted the feasibility to determine corrosion rate by nondestructive on-line monitoring electrochemical noise progress.
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Affiliation(s)
- Chenxi Yi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Benfeng Zhu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Yu Chen
- Department of Chemical Engineering and Safety, Binzhou University, Binzhou, Shandong, 256600, China
| | - Xiaoqing Du
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Yumeng Yang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Jiao Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhao Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
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33
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Preparation and characterization of ABS and copper (II) sulfate coordination composites by planetary ball mill. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-017-2042-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Ji H, Zhao R, Li Y, Sun B, Li Y, Zhang N, Qiu J, Li X, Wang C. Robust and durable superhydrophobic electrospun nanofibrous mats via a simple Cu nanocluster immobilization for oil-water contamination. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.10.064] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Yang L, Yao L, Jiang W, Jiang X, Li J. The study on continuous denitrification, desulfurization of pyrolusite/activated coke hybrid catalyst. RSC Adv 2018. [DOI: 10.1039/c7ra11720e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The SO2 removal and regeneration of ACP improved its NO removal activity, while the denitrification had almost no effect on the desulfurization. The metal sulfate of ACP-Rn showed catalytic activity for NO reduction although there is also a reverse effect.
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Affiliation(s)
- Lin Yang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Lu Yao
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- P. R. China
- National Engineering Research Center for Flue Gas Desulfurization
| | - Wenju Jiang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- P. R. China
- National Engineering Research Center for Flue Gas Desulfurization
| | - Xia Jiang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- P. R. China
- National Engineering Research Center for Flue Gas Desulfurization
| | - Jianjun Li
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- P. R. China
- National Engineering Research Center for Flue Gas Desulfurization
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36
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Shoji S, Yamaguchi A, Sakai E, Miyauchi M. Strontium Titanate Based Artificial Leaf Loaded with Reduction and Oxidation Cocatalysts for Selective CO 2 Reduction Using Water as an Electron Donor. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20613-20619. [PMID: 28561566 DOI: 10.1021/acsami.7b05197] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Thin film of SrTiO3 nanorods loaded with reduction and oxidation cocatalysts drove the selective reduction of carbon dioxide (CO2) into carbon monoxide (CO), as well as caused the production of equivalent oxygen molecules through water oxidation under UV irradiation. The described film functioned as a free-standing plate without any bias potential application, similar to a natural leaf. The film was facilely fabricated by a simple hydrothermal and annealing treatment of a titanium substrate to produce the SrTiO3 nanorod film (STO film) followed by two steps of loading the reduction and oxidation cocatalysts onto the surface of the STO. As a reduction cocatalyst, a CuxO nanocluster was chosen to achieve selective reduction of CO2 into CO, whereas a cobalt- and phosphate-based cocatalyst (CoPi) facilitated oxidation on the STO surface to promote oxygen generation. For the photocatalysis test, a wireless film was simply set into an aqueous solution bubbled with CO2 in a reactor, and CO production was observed in the headspace of the reactor under UV irradiation. Compared to the bare STO film, the dual cocatalyst-loaded STO film exhibited 2.5 times higher CO generation. H2 production was very limited in our system, and the amount of molecules generated by the reduction reaction was almost twice that of the generated oxygen molecules, proving that water molecules acted as electron donors. Our artificial leaf consists of abundant and nontoxic natural elements and represents the first achievement of stoichiometric CO2 reduction using water as an electron donor by a free-standing natural leaflike plate form.
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Affiliation(s)
- Shusaku Shoji
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akira Yamaguchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Etsuo Sakai
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masahiro Miyauchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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Tsukamoto T, Takada K, Sakamoto R, Matsuoka R, Toyoda R, Maeda H, Yagi T, Nishikawa M, Shinjo N, Amano S, Iokawa T, Ishibashi N, Oi T, Kanayama K, Kinugawa R, Koda Y, Komura T, Nakajima S, Fukuyama R, Fuse N, Mizui M, Miyasaki M, Yamashita Y, Yamada K, Zhang W, Han R, Liu W, Tsubomura T, Nishihara H. Coordination Nanosheets Based on Terpyridine-Zinc(II) Complexes: As Photoactive Host Materials. J Am Chem Soc 2017; 139:5359-5366. [PMID: 28320204 DOI: 10.1021/jacs.6b12810] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Photoluminescent coordination nanosheets (CONASHs) comprising three-way terpyridine (tpy) ligands and zinc(II) ions are created by allowing the two constitutive components to react with each other at a liquid/liquid interface. Taking advantage of bottom-up CONASHs, or flexibility in organic ligand design and coordination modes, we demonstrate the diversity of the tpy-zinc(II) CONASH in structures and photofunctions. A combination of 1,3,5-tris[4-(4'-2,2':6',2″-terpyridyl)phenyl]benzene (1) and Zn(BF4)2 affords a cationic CONASH featuring the bis(tpy)Zn complex motif (1-Zn), while substitution of the zinc source with ZnSO4 realizes a charge-neutral CONASH with the [Zn2(μ-O2SO2)2(tpy)2] motif [1-Zn2(SO4)2]. The difference stems from the use of noncoordinating (BF4-) or coordinating and bridging (SO42-) anions. The change in the coordination mode alters the luminescence (480 nm blue in 1-Zn; 552 nm yellow in 1-Zn2(SO4)2). The photophysical property also differs in that 1-Zn2(SO4)2 shows solvatoluminochromism, whereas 1-Zn does not. Photoluminescence is also modulated by the tpy ligand structure. 2-Zn contains triarylamine-centered terpyridine ligand 2 and features the bis(tpy)Zn motif; its emission is substantially red-shifted (590 nm orange) compared with that of 1-Zn. CONASHs 1-Zn and 2-Zn possess cationic nanosheet frameworks with counteranions (BF4-), and thereby feature anion exchange capacities. Indeed, anionic xanthene dyes were taken up by these nanosheets, which undergo quasi-quantitative exciton migration from the host CONASH. This series of studies shows tpy-zinc(II) CONASHs as promising potential photofunctional nanomaterials.
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Affiliation(s)
- Takamasa Tsukamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Japan Society for the Promotion of Science (JSPS) , Ichibancho, Chiyoda-ku, Tokyo 102-8471, Japan
| | - Kenji Takada
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,JST-PRESTO , 4-1-8 Honjcho, Kawaguchi, Saitama 332-0012, Japan
| | - Ryota Matsuoka
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryojun Toyoda
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Maeda
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiki Yagi
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Michihiro Nishikawa
- Department of Materials and Life Science, Seikei University , 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan
| | - Naoaki Shinjo
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shuntaro Amano
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tadashi Iokawa
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Narutaka Ishibashi
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tsugumi Oi
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Koshiro Kanayama
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Rina Kinugawa
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoichiro Koda
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshiyuki Komura
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shuhei Nakajima
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Fukuyama
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Nobuyuki Fuse
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Makoto Mizui
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masashi Miyasaki
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yutaro Yamashita
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kuni Yamada
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Wenxuan Zhang
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ruocheng Han
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Wenyu Liu
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Taro Tsubomura
- Department of Materials and Life Science, Seikei University , 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo 180-8633, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Casañ-Pastor N, Rius J, Vallcorba O, Peral I, Oró-Solé J, Cook DS, Walton RI, García A, Muñoz-Rojas D. Ag 2Cu 3Cr 2O 8(OH) 4: a new bidimensional silver-copper mixed-oxyhydroxide with in-plane ferromagnetic coupling. Dalton Trans 2017; 46:1093-1104. [PMID: 28045173 DOI: 10.1039/c6dt03986c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ag2Cu3Cr2O8(OH)4, a new Ag-Cu-Cr-O layered mixed oxide, prepared by soft hydrothermal heterogeneous reactions, is reported. The new phase is an oxyhydroxide and presents a structure with alternating brucite-like Cu-O and Ag-O layers connected by individual chromate groups. The crystallographic structure has been solved and refined from high resolution powder X-ray diffraction data and is supported by density functional theory calculations, yielding a triclinic, space group P1[combining macron], a = 5.3329(1) Å, b = 5.3871(1) Å, c = 10.0735(1) Å, α = 80.476(1)°, β = 87.020(1)°, γ = 62.383(1)°. Bond valence sums suggest the formulation of Ag+2Cu2+3Cr6+2O8(OH)4, an electronic state fully supported by X-ray photoelectron spectroscopy (XPS) and Cr K-edge X-ray absorption near edge structure (XANES) measurements. Ag2Cu3Cr2O8(OH)4 exhibits bidimensional Cu-O-Cu ferromagnetic correlations that are apparent at much higher temperatures than in other similar Cu-O layered structures, without coupling between Cu-O layers, which represents a unique case in the recent family of silver copper oxides. The role of Ag inducing bidimensionality in copper oxides is therefore expanded further with the presence of chromate anions. Ab initio calculations using density functional theory show that the electronic states involved originate mainly from Cu and OH orbitals, with minor contributions from Cr and the O atoms linking the Cr tetrahedra to the brucitic Cu-O layer, and almost no contribution from Ag. Further modeling of the in-plane magnetic interactions between Cu atoms suggests that the coupled magnetized stripes are responsible for the observed behavior. The results are discussed in relation with previous Ag-Cu mixed oxide phases where metallic behavior or ferro-antiferro transitions had been observed. The structure of this new Ag-Cu-O phase as compared with previous silver copper oxides supports the conclusion that the Ag-Cu layered ordering is favored under oxidizing conditions.
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Affiliation(s)
- Nieves Casañ-Pastor
- Institut de Ciencia de Materials de Barcelona, CSIC, Campus UAB, Bellaterra 08193, Spain.
| | - Jordi Rius
- Institut de Ciencia de Materials de Barcelona, CSIC, Campus UAB, Bellaterra 08193, Spain.
| | - Oriol Vallcorba
- Alba synchrotron, 08290 Cerdanyola del Valles, Barcelona, Spain
| | - Inma Peral
- Alba synchrotron, 08290 Cerdanyola del Valles, Barcelona, Spain
| | - Judith Oró-Solé
- Institut de Ciencia de Materials de Barcelona, CSIC, Campus UAB, Bellaterra 08193, Spain.
| | - Daniel S Cook
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Richard I Walton
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
| | - Alberto García
- Institut de Ciencia de Materials de Barcelona, CSIC, Campus UAB, Bellaterra 08193, Spain.
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Shoji S, Yin G, Nishikawa M, Atarashi D, Sakai E, Miyauchi M. Photocatalytic reduction of CO2 by Cu O nanocluster loaded SrTiO3 nanorod thin film. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.06.062] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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41
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Hasnat MA, Safwan JA, Rashed MA, Rahman Z, Rahman MM, Nagao Y, Asiri AM. Inverse effects of supporting electrolytes on the electrocatalytic nitrate reduction activities in a Pt|Nafion|Pt–Cu-type reactor assembly. RSC Adv 2016. [DOI: 10.1039/c5ra22645g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Pt|Nafion|Pt–Cu assembly can exhibit its best reduction reaction efficiency in the absence of any supporting electrolytes. Adsorption of supporting electrolytes decreases efficiency by registering an increase of charge transfer resistance.
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Affiliation(s)
- Mohammad A. Hasnat
- Department of Chemistry
- School of Physical Sciences
- Shahjalal University of Science and Technology
- Sylhet-3100
- Bangladesh
| | - Jamil A. Safwan
- Department of Chemistry
- School of Physical Sciences
- Shahjalal University of Science and Technology
- Sylhet-3100
- Bangladesh
| | - M. A. Rashed
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Zidnia Rahman
- Department of Chemistry
- School of Physical Sciences
- Shahjalal University of Science and Technology
- Sylhet-3100
- Bangladesh
| | - Mohammed M. Rahman
- Center of Excellence for Advanced Material Research (CEAMR) and Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Yuki Nagao
- School of Materials Science
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Material Research (CEAMR) and Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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42
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Preparation of metal-ion containing polymers: Synthesis and characterization of methacryliccopolymers containing copper ion. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.09.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Iwase K, Yoshioka T, Nakanishi S, Hashimoto K, Kamiya K. Copper-Modified Covalent Triazine Frameworks as Non-Noble-Metal Electrocatalysts for Oxygen Reduction. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503637] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Iwase K, Yoshioka T, Nakanishi S, Hashimoto K, Kamiya K. Copper-Modified Covalent Triazine Frameworks as Non-Noble-Metal Electrocatalysts for Oxygen Reduction. Angew Chem Int Ed Engl 2015; 54:11068-72. [DOI: 10.1002/anie.201503637] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 06/22/2015] [Indexed: 11/06/2022]
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Doménech-Carbó A, Doménech-Carbó MT, Capelo S, Pasíes T, Martínez-Lázaro I. Dating Archaeological Copper/Bronze Artifacts by Using the Voltammetry of Microparticles. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Doménech-Carbó A, Doménech-Carbó MT, Capelo S, Pasíes T, Martínez-Lázaro I. Dating Archaeological Copper/Bronze Artifacts by Using the Voltammetry of Microparticles. Angew Chem Int Ed Engl 2014; 53:9262-6. [PMID: 25044555 DOI: 10.1002/anie.201404522] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Antonio Doménech-Carbó
- Departament de Química Analítica, Universitat de València, Dr. Moliner, 50, 46100 Burjassot (València) (Spain).
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Yassitepe E, Shafarman WN, Shah SI. Microstructure and phase evolution in single phase CuInSe2 particles synthesized using elemental precursors. J SOLID STATE CHEM 2014. [DOI: 10.1016/j.jssc.2014.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Faraldi F, Angelini E, Mezzi A, Riccucci C, de Caro T, Di Carlo G. Surface studies of environmental reactive species during exhibition or storage of ancient Ag-based artefacts. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5445] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- F. Faraldi
- Department of Applied Science and Technology; Polytechnic of Turin; Corso Duca degli Abruzzi 24 10129 Turin Italy
| | - E. Angelini
- Department of Applied Science and Technology; Polytechnic of Turin; Corso Duca degli Abruzzi 24 10129 Turin Italy
| | - A. Mezzi
- Institute for the Study of Nano-structured Materials-CNR; 00016 Monterotondo Scalo Rome Italy
| | - C. Riccucci
- Institute for the Study of Nano-structured Materials-CNR; 00016 Monterotondo Scalo Rome Italy
| | - T. de Caro
- Institute for the Study of Nano-structured Materials-CNR; 00016 Monterotondo Scalo Rome Italy
| | - G. Di Carlo
- Institute for the Study of Nano-structured Materials-CNR; 00016 Monterotondo Scalo Rome Italy
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49
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Mezzi A, Riccucci C, de Caro T, Angelini E, Faraldi F, Grassini S, Gouda VK. Combined use of SA-XPS, XRD and SEM + EDS for the micro-chemical characterisation of Ag-based archaeological artefacts. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5385] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Mezzi
- Istituto per lo Studio dei Materiali Nanostrutturati del CNR; Area della Ricerca Roma 1-Montelibretti; Monterotondo Rome Italy
| | - C. Riccucci
- Istituto per lo Studio dei Materiali Nanostrutturati del CNR; Area della Ricerca Roma 1-Montelibretti; Monterotondo Rome Italy
| | - T. de Caro
- Istituto per lo Studio dei Materiali Nanostrutturati del CNR; Area della Ricerca Roma 1-Montelibretti; Monterotondo Rome Italy
| | - E. Angelini
- Dipartimento di Scienza Applicata e Tecnologia; Politecnico di Torino; Torino Italy
| | - F. Faraldi
- Dipartimento di Scienza Applicata e Tecnologia; Politecnico di Torino; Torino Italy
| | - S. Grassini
- Dipartimento di Scienza Applicata e Tecnologia; Politecnico di Torino; Torino Italy
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