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Binish B, Lokesh B, Veer Y, Peters S, Abith M, Girisun TCS, Rahulan KM. Silver molybdate: an excellent optical limiting material under nanoregime for photonic device application. Sci Rep 2024; 14:5642. [PMID: 38453953 PMCID: PMC10920747 DOI: 10.1038/s41598-024-53690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 02/03/2024] [Indexed: 03/09/2024] Open
Abstract
There is a mounting demand for nonlinear optical materials with superior optical limiting performance which has a noticeable impact on protecting the delicate optical components from laser-induced damage. Transition metal molybdates have garnered attention in the nonlinear optics field due to their outstanding optical and luminescent properties, which give rise to widespread applications in next-generation optoelectronics devices. The structural confirmation of the as prepared silver molybdate nanoparticles were made by XRD and Raman spectroscopy analysis. The linear optical properties and the band gap of the synthesized material were studied using UV-Visible and photoluminescence spectroscopy. SEM analysis revealed the pebble like morphology of the silver molybdate nanostructures. The nonlinear responses of the samples were studied using open aperture z-scan approach with Nd:YAG pulsed laser (532 nm, 9 ns, 10 Hz). The sample exhibits reverse saturable absorption pattern attributed to the two photon absorption (2PA) mechanism. The obtained OL threshold value is in the order of 1012 which is suitable for fabricating optical limiters in nano second pulsed laser regime.
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Affiliation(s)
- B Binish
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.
- Department of Physics, Baby John Memorial Government College, chavara, kollam, India.
| | - B Lokesh
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - Yukesh Veer
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - Silda Peters
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India
| | - M Abith
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - T C Sabari Girisun
- Nanophotonics Laboratory, Department of Physics, Bharathidasan University, Tiruchirappalli, 620 024, India
| | - K Mani Rahulan
- Nanophotonics Research Laboratory, Department of Physics & Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603 203, India.
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Ag3PO4 and Ag3PO4–based visible light active photocatalysts: Recent progress, synthesis, and photocatalytic applications. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Engineering titanium-organic framework decorated silver molybdate and silver vanadate as antimicrobial, anticancer agents, and photo-induced hydroxylation reactions. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113572] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Recent advances on silver-based photocatalysis: Photocorrosion inhibition, visible-light responsivity enhancement, and charges separation acceleration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120194] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Vishnevetskii DV, Averkin DV, Efimov AA, Lizunova AA, Ivanova AI, Pakhomov PM, Ruehl E. Ag/α-Ag 2MoO 4/h-MoO 3 nanoparticle based microspheres: synthesis and photosensitive properties. SOFT MATTER 2021; 17:10416-10420. [PMID: 34792080 DOI: 10.1039/d1sm01315g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We report a new and the most simple strategy for the synthesis of silver molybdate functional composite microspheres based on low molecular weight gelators -amino acids, silver salts and heptamolybdate ions. The resulting material shows a high photocatalytic activity with respect to the methylene blue dye degradation at neutral pH.
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Affiliation(s)
- Dmitry V Vishnevetskii
- Department of Physical Chemistry and Applied Physics, Tver State University (TSU), Tver, 170100, Russia.
- Institute of Biomedical Chemistry (IBMC), Moscow, 119121, Russia
| | - Dmitry V Averkin
- Department of Physical Chemistry and Applied Physics, Tver State University (TSU), Tver, 170100, Russia.
- Department of Physicochemical Measurements, Russian Metrological Institute of Technical Physics and Radio Engineering, Mendeleevo, 141570, Russia
| | - Alexey A Efimov
- Moscow Institute of Physics and Technology, National Research University, 141701 Dolgoprudny, Russia
| | - Anna A Lizunova
- Moscow Institute of Physics and Technology, National Research University, 141701 Dolgoprudny, Russia
| | - Alexandra I Ivanova
- Department of Physical Chemistry and Applied Physics, Tver State University (TSU), Tver, 170100, Russia.
| | - Pavel M Pakhomov
- Department of Physical Chemistry and Applied Physics, Tver State University (TSU), Tver, 170100, Russia.
| | - E Ruehl
- Department of Physical Chemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, 14195, Germany
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Della Rocca DG, Peralta RM, Peralta RA, Peralta Muniz Moreira RDF. Recent development on Ag2MoO4-based advanced oxidation processes: a review. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01934-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Warmuth L, Ritschel C, Feldmann C. Facet-, composition- and wavelength-dependent photocatalysis of Ag 2MoO 4. RSC Adv 2020; 10:18377-18383. [PMID: 35517242 PMCID: PMC9054025 DOI: 10.1039/d0ra02953j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 05/07/2020] [Indexed: 01/20/2023] Open
Abstract
Faceted β-Ag2MoO4 microcrystals are prepared by controlled nucleation and growth in diethylene glycol (DEG) or dimethylsulfoxide (DMSO). Both serve as solvents for the liquid-phase synthesis and surface-active agents for the formation of faceted microcrystals. Due to its reducing properties, truncated β-Ag2MoO4@Ag octahedra are obtained in DEG. The synthesis in DMSO allows avoiding the formation of elemental silver and results in β-Ag2MoO4 cubes and cuboctahedra. Due to its band gap of 3.2 eV, photocatalytic activation of β-Ag2MoO4 is only possible under UV-light. To enable β-Ag2MoO4 for absorption of visible light, silver-coated β-Ag2MoO4@Ag and Ag2(Mo0.95Cr0.05)O4 with partial substitution of [MoO4]2- by [CrO4]2- were prepared, too. The photocatalytic activity of all the faceted microcrystals (truncated octahedra, cubes, cuboctahedra) and compositions (β-Ag2MoO4, β-Ag2MoO4@Ag, β-Ag2(Mo0.95Cr0.05)O4) is compared with regard to the photocatalytic decomposition of rhodamine B and the influence of the respective faceting, composition and wavelength.
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Affiliation(s)
- Lucas Warmuth
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT) Engesserstraße 15 D-76131 Karlsruhe Germany +49-721-60842855
| | - Christian Ritschel
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT) Engesserstraße 15 D-76131 Karlsruhe Germany +49-721-60842855
| | - Claus Feldmann
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT) Engesserstraße 15 D-76131 Karlsruhe Germany +49-721-60842855
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Unvealing the role of β-Ag 2MoO 4 microcrystals to the improvement of antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110765. [PMID: 32279798 DOI: 10.1016/j.msec.2020.110765] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/14/2020] [Accepted: 02/18/2020] [Indexed: 12/29/2022]
Abstract
Crystal morphology with different surfaces is important for improving the antibacterial activity of materials. In this experimental and theoretical study, the antibacterial activity of β-Ag2MoO4 microcrystals against the Gram-positive bacteria, namely, methicillin-resistant Staphylococcus aureus (MRSA), and the Gram-negative bacteria, namely, Escherichia coli (E. coli), was investigated. In this study, β-Ag2MoO4 crystals with different morphologies were synthetized by a simple co-precipitation method using three different solvents. The antimicrobial efficacy of the obtained microcrystals against both bacteria increased according to the solvent used in the following order: water < ammonia < ethanol. Supported by experimental evidence, a correlation between morphology, surface energy, and antibacterial performance was established. By using the theoretical Wulff construction, which was obtained by means of density functional calculations, the morphologies with large exposition of the (001) surface exhibited superior antibacterial activity. This study provides a low cost route for synthesizing β-Ag2MoO4 crystals and a guideline for enhancing the biological effect of biocides on pathogenic bacteria by the morphological modulation.
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Liu J, Yang B, Gao M, You L, Zhang Y, Li Z, Guo L, Li T, Chen P, Liu M. Facile synthesis of new polyhedron-like WO3/butterfly-like Ag2MoO4 p–n junction photocatalysts with higher photocatalytic activity in UV/solar region light. NEW J CHEM 2020. [DOI: 10.1039/c9nj05801j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A series of novel efficient polyhedron-like WO3/butterfly-like Ag2MoO4 p–n junction photocatalysts (denoted as AMW-x) were designed and synthesized.
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Jawdat FH, Lin J, Dou SX, Park MS, Nattestad A, Kim JH. Oxygen-Deficient TiO2-δ Synthesized from MIL-125 Metal-Organic Framework for Photocatalytic Dye Degradation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Fanar Hussein Jawdat
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
- Department of Mechanical Engineering, College of Engineering, University of Baghdad, Iraq
| | - Jianjian Lin
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Min-Sik Park
- Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Korea
| | - Andrew Nattestad
- Intelligent Polymer Research Institute (IPRI), ARC Centre of Excellence for Electromaterials Science, AIIM, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Jung Ho Kim
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong, NSW 2500, Australia
- Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Korea
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Salimi M, Esrafili A, Jonidi Jafari A, Gholami M, Sobhi HR, Nourbakhsh M, Akbari-Adergani B. Photocatalytic degradation of cefixime with MIL-125(Ti)-mixed linker decorated by g-C3N4 under solar driven light irradiation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123874] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xue YN, Sun YS, Liu JK, Wang YY, Wang XG, Yang XH. Construction, enhanced visible-light photocatalytic activity and application of multiple complementary Ag dots decorated onto Ag2MoO4/AZO hybrid nanocomposite. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3649-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Silver-, calcium-, and copper molybdate compounds: Preparation, antibacterial activity, and mechanisms. Biointerphases 2017; 12:05G607. [PMID: 29113436 DOI: 10.1116/1.4996434] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Developing novel compounds with antimicrobial properties can be an effective approach to decreasing the number of healthcare-associated infections, particularly in the context of medical devices and touch surfaces. A variety of molybdate powders (Ag2MoO4, CaMoO4, CuMoO4 and Cu3Mo2O9) were synthesized and characterized, and Escherichia coli was used as a model gram-negative bacterium to demonstrate their antimicrobial properties. Optical density measurements, bacterial colony growth, and stained gel images for protein expression clearly showed that silver- and copper molybdates inhibit bacterial growth, whereas CaMoO4 exhibited no bactericidal effect. All tests were performed in both daylight and darkness to assess the possible contribution of a photocatalytic effect on the activity observed. The main mechanism responsible for the antibacterial effect observed for Ag2MoO4 is related to Ag+ release in combination with medium acidification, whereas for compounds containing copper, leaching of Cu2+ ions is proposed. All these effects are known to cause damage at the cellular level. A photocatalytic contribution to the antibacterial activity was not clearly observable. Based on the pH and solubility measurements performed for powders in contact with various media (ultrapure water and bacterial growth medium), silver molybdate (Ag2MoO4) was identified as the best antibacterial candidate. This compound has great potential for further use in hybrid powder-polymer/varnish systems for touch surfaces in healthcare settings.
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Zhang J, Ma Z. Ag 6 Mo 10 O 33 /g-C 3 N 4 1D-2D hybridized heterojunction as an efficient visible-light-driven photocatalyst. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.02.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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17
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A Scheelite-type semiconductor InBi3(MoO6)2 nanoparticles: Preparation, structural and optical properties. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2016.11.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Wang Z, Huang P, Zheng M. Optical properties and visible-light driven photocatalytic performance of Bi14MoO24 semiconductor with layered δ-Bi2O3-type structure. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.02.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Moura J, Freitas T, Cruz R, Pereira R, Silva A, Santos A, da Silva J, Luz-Lima C, Freire P, Coutinho H. β-Ag2MoO4 microcrystals: Characterization, antibacterial properties and modulation analysis of antibiotic activity. Biomed Pharmacother 2017; 86:242-247. [DOI: 10.1016/j.biopha.2016.12.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 10/20/2022] Open
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Construction of Ag 3 PO 4 /Ag 2 MoO 4 Z-scheme heterogeneous photocatalyst for the remediation of organic pollutants. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(16)62570-6] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yang X, Wang Y, Xu X, Qu Y, Ding X, Chen H. Surface plasmon resonance-induced visible-light photocatalytic performance of silver/silver molybdate composites. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(16)62553-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Zhang J, Ma Z. Flower-like Ag 2 MoO 4 /Bi 2 MoO 6 heterojunctions with enhanced photocatalytic activity under visible light irradiation. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2016.11.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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23
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Zhang J, Ma Z. Novel β-Ag2MoO4/g-C3N4 heterojunction catalysts with highly enhanced visible-light-driven photocatalytic activity. RSC Adv 2017. [DOI: 10.1039/c6ra26352f] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The kernel of photocatalysis research is the development of catalysts with remarkable photocatalytic activity.
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Affiliation(s)
- Junlei Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai
- PR China
| | - Zhen Ma
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3)
- Department of Environmental Science and Engineering
- Fudan University
- Shanghai
- PR China
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Zhao Y, Liu Z, Gu W, Zhai Y, Teng Y, Teng F. Enhanced energy density of a supercapacitor using 2D CoMoO 4 ultrathin nanosheets and asymmetric configuration. NANOTECHNOLOGY 2016; 27:505401. [PMID: 27855122 DOI: 10.1088/0957-4484/27/50/505401] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Developing a high energy density micro-supercapacitor still remains a big challenge. In this paper, a two-dimensional (2D) CoMoO4 ultrathin nanosheet (NS)-based asymmetric supercapacitor (ASC) is fabricated. It is found that the CoMoO4 NS electrode processes a high specific capacitance (153.2 F g-1) at a current density of 1 mA cm-2 and this ASC can deliver an energy density of 0.313 mWh cm-3 at a power density of 80 mW cm-3, which is higher than that reported in the literature. Moreover, the ASC can drive a light emitting diode (3 mm diameter, red) to work for 6 min after being charged for 10 s. After 5000 cycles, 77.37% of capacitance still remains. We maintain that the ultrathin thickness can significantly shorten the diffusion paths for both electrons and ions, thus leading to fast electron transport and ion diffusion rates. Our results demonstrate that 2D ultrathin NSs could be a new, promising candidate for energy conversion/storage devices, which could offer more accommodating sites for ion intercalation.
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Affiliation(s)
- Yunxuan Zhao
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM), Nanjing University of Information Sciences & Technology, Nanjing 210044, People's Republic of China. Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), Nanjing University of Information Sciences & Technology, Nanjing 210044, People's Republic of China. School of Environmental Science and Engineering, Nanjing University of Information Sciences & Technology, Nanjing 210044, People's Republic of China
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Zhao Y, Teng F, Liu Z, Du Q, Xu J, Teng Y. Electrochemical performances of asymmetric super capacitor fabricated by one-dimensional CoMoO4 nanostructure. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fabrication of potato-like silver molybdate microstructures for photocatalytic degradation of chronic toxicity ciprofloxacin and highly selective electrochemical detection of H 2O 2. Sci Rep 2016; 6:34149. [PMID: 27671795 PMCID: PMC5037444 DOI: 10.1038/srep34149] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/07/2016] [Indexed: 11/08/2022] Open
Abstract
In the present work, potato-like silver molybdate (Ag2MoO4) microstructures were synthesized through a simple hydrothermal method. The microstructures of Ag2MoO4 were characterized by various analytical and spectroscopic techniques such as XRD, FTIR, Raman, SEM, EDX and XPS. Interestingly, the as-prepared Ag2MoO4 showed excellent photocatalytic and electrocatalytic activity for the degradation of ciprofloxacin (CIP) and electrochemical detection of hydrogen peroxide (H2O2), respectively. The ultraviolet-visible (UV-Vis) spectroscopy results revealed that the potato-like Ag2MoO4 microstructures could offer a high photocatalytic activity towards the degradation of CIP under UV-light illumination, leads to rapid degradation within 40 min with a degradation rate of above 98%. In addition, the cyclic voltammetry (CV) and amperometry studies were realized that the electrochemical performance of Ag2MoO4 modified electrode toward H2O2 detection. Our H2O2 sensor shows a wide linear range and lower detection limit of 0.04-240 μM and 0.03 μM, respectively. The Ag2MoO4 modified electrode exhibits a high selectivity towards the detection of H2O2 in the presence of different biological interferences. These results suggested that the development of potato-like Ag2MoO4 microstructure could be an efficient photocatalyst as well as electrocatalyst in the potential application of environmental, biomedical and pharmaceutical samples.
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Bai YY, Lu Y, Liu JK. An efficient photocatalyst for degradation of various organic dyes: Ag@Ag2MoO4-AgBr composite. JOURNAL OF HAZARDOUS MATERIALS 2016; 307:26-35. [PMID: 26775100 DOI: 10.1016/j.jhazmat.2015.12.052] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 12/15/2015] [Accepted: 12/26/2015] [Indexed: 05/16/2023]
Abstract
The Ag2MoO4-AgBr composite was prepared by a facile in-situ anion-exchange method, then the Ag nanoparticles were coated on this composite through photodeposition route to form a novel Ag@Ag2MoO4-AgBr composite. The in-situ Br(-) replacement in a crystal lattice node position of Ag2MoO4 crystal allows for overcoming the resistance of electron transition effectively. Meanwhile silver nano-particles on the surface of Ag@Ag2MoO4-AgBr composite could act as electron traps to intensify the photogeneration electron-hole separation and the subsequent transfer of the trapped electron to the adsorbed O2 as an electron acceptor. As an efficient visible light catalyst, the Ag@Ag2MoO4-AgBr composite exhibited superior photocatalytic activity for the degradation of various organic dyes. The experimental results demonstrated superior photocatalytic rate of Ag@Ag2MoO4-AgBr composite compared to pure AgBr and Ag2MoO4 crystals (37.6% and 348.4% enhancement respectively). The Ag@Ag2MoO4-AgBr composite cloud degraded Rhodamin B, bromophenol blue, and amino black 10b completed in 7min.
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Affiliation(s)
- Yu-Yang Bai
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Yi Lu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China
| | - Jin-Ku Liu
- Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, PR China.
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Silva MDP, Gonçalves RF, Nogueira IC, Longo VM, Mondoni L, Moron MG, Santana YV, Longo E. Microwave-assisted hydrothermal synthesis of Ag₂(W(1-x)Mox)O₄ heterostructures: Nucleation of Ag, morphology, and photoluminescence properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 153:428-435. [PMID: 26361214 DOI: 10.1016/j.saa.2015.08.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 08/19/2015] [Accepted: 08/30/2015] [Indexed: 06/05/2023]
Abstract
Ag2W(1-x)MoxO4 (x=0.0 and 0.50) powders were synthesized by the co-precipitation (drop-by-drop) method and processed using a microwave-assisted hydrothermal method. We report the real-time in situ formation and growth of Ag filaments on the Ag2W(1-x)MoxO4 crystals using an accelerated electron beam under high vacuum. Various techniques were used to evaluate the influence of the network-former substitution on the structural and optical properties, including photoluminescence (PL) emission, of these materials. X-ray diffraction results confirmed the phases obtained by the synthesis methods. Raman spectroscopy revealed significant changes in local order-disorder as a function of the network-former substitution. Field-emission scanning electron microscopy was used to determine the shape as well as dimensions of the Ag2W(1-x)MoxO4 heterostructures. The PL spectra showed that the PL-emission intensities of Ag2W(1-x)MoxO4 were greater than those of pure Ag2WO4, probably because of the increase of intermediary energy levels within the band gap of the Ag2W(1-x)MoxO4 heterostructures, as evidenced by the decrease in the band-gap values measured by ultraviolet-visible spectroscopy.
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Affiliation(s)
- M D P Silva
- LIEC-Universidade Federal de São Carlos, Rod. Washington Luis, km 235, São Carlos, SP CEP: 13565-905, Brazil
| | - R F Gonçalves
- UNIFESP-Universidade Federal de São Paulo, Rua Prof. Artur Riedel, 275, Diadema, SP CEP 09972-270, Brazil.
| | - I C Nogueira
- IFMA - Instituto Federal do Maranhão, Avenida Getúlio Vargas, no 04 - Monte Castelo, São Luís, MA CEP 65030-005, Brazil
| | - V M Longo
- USP - Universidade de São Paulo, Av. Trabalhador São-Carlense, 400 - Arnold Schimidt, São Carlos, SP CEP 13566-590, Brazil
| | - L Mondoni
- LIEC-Universidade Federal de São Carlos, Rod. Washington Luis, km 235, São Carlos, SP CEP: 13565-905, Brazil
| | - M G Moron
- LIEC-Universidade Federal de São Carlos, Rod. Washington Luis, km 235, São Carlos, SP CEP: 13565-905, Brazil
| | - Y V Santana
- UTFPR-Universidade Tecnológica Federal do Paraná, Av. Alberto Carazzai, 1640, Cornélio Procópio, PR CEP 86300-000, Brazil
| | - E Longo
- LIEC-IQ-Universidade Estadual Paulista, P.O. Box 355, Araraquara, SP CEP 14801-907, Brazil
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Fabbro MT, Foggi CC, Santos LPS, Gracia L, Perrin A, Perrin C, Vergani CE, Machado AL, Andrés J, Cordoncillo E, Longo E. Synthesis, antifungal evaluation and optical properties of silver molybdate microcrystals in different solvents: a combined experimental and theoretical study. Dalton Trans 2016; 45:10736-43. [DOI: 10.1039/c6dt00343e] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we investigate the structure, antifungal activity, and optical properties of β-Ag2MoO4.
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Affiliation(s)
- Maria T. Fabbro
- DQ
- Universidade Federal de São Carlos
- 13565-905 São Carlos
- Brazil
- Departamento de Química Inorgánica y Orgánica
| | | | | | - Lourdes Gracia
- Departamento de Química Física y Analítica
- Universitat Jaume I
- Castelló 12071
- Spain
| | - André Perrin
- UMR CNRS 6226
- Université de Rennes 1
- 35042 Rennes Cedex
- France
| | | | | | | | - Juan Andrés
- Departamento de Química Física y Analítica
- Universitat Jaume I
- Castelló 12071
- Spain
| | - Eloisa Cordoncillo
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- Castelló 12071
- Spain
| | - Elson Longo
- CDMF-IQ
- Universidade Estadual Paulista
- Araraquara
- Brazil
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30
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Liu Z, Zhao Z, Teng F, Chang C, Zhao Y, Yang Y, Yao W, Zhu Y, Fan Y. In situ hydrothermal fabrication of a MnO2@CoMoO4@Ni nanohybrid electrode and ultrahigh energy density of ASCs. RSC Adv 2016. [DOI: 10.1039/c6ra05790j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A flexible AC@Ni//MnO2@CoMoO4@Ni asymmetric supercapacitor (ASC) shows an ultrahigh energy density.
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Affiliation(s)
- Zailun Liu
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Zhengyang Zhao
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Fei Teng
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Chao Chang
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Yunxuan Zhao
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Yang Yang
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
| | - Wenqing Yao
- Department of Chemistry
- Tsinghua University
- Beijing 100082
- China
| | - Yongfa Zhu
- Department of Chemistry
- Tsinghua University
- Beijing 100082
- China
| | - Yingzheng Fan
- Jiangsu Engineering and Technology Research Center of Environmental Cleaning Materials (ECM)
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC)
- Jiangsu Joint Laboratory of Atmospheric Pollution Control (APC)
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET)
- School of Environmental Science and Engineering
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31
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Zhang JY, Lu Y, Liu JK, Jiang H. Mosaic structure effect and superior catalytic performance of AgBr/Ag2MoO4 composite materials. RSC Adv 2016. [DOI: 10.1039/c6ra17433g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The research focused on mosaic style AgBr–Ag2MoO4 composite materials prepared by in situ composite method. The catalytic efficiency enhanced 149 times compared to pure Ag2MoO4. The success of instant catalysis owed to the mosaic structure effect.
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Affiliation(s)
- Jing-Yu Zhang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yi Lu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Jin-Ku Liu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Hao Jiang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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Fabbro MT, Saliby C, Rios LR, La Porta FA, Gracia L, Li MS, Andrés J, Santos LPS, Longo E. Identifying and rationalizing the morphological, structural, and optical properties of [Formula: see text]-Ag 2MoO 4 microcrystals, and the formation process of Ag nanoparticles on their surfaces: combining experimental data and first-principles calculations. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2015; 16:065002. [PMID: 27877844 PMCID: PMC5069988 DOI: 10.1088/1468-6996/16/6/065002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 10/13/2015] [Accepted: 10/13/2015] [Indexed: 06/01/2023]
Abstract
We present a combined theoretical and experimental study on the morphological, structural, and optical properties of β-Ag2MoO4 microcrystals. β-Ag2MoO4 samples were prepared by a co-precipitation method. The nucleation and formation of Ag nanoparticles on β-Ag2MoO4 during electron beam irradiation were also analyzed as a function of electron beam dose. These events were directly monitored in real-time using in situ field emission scanning electron microscopy (FE-SEM). The thermodynamic equilibrium shape of the β-Ag2MoO4 crystals was built with low-index surfaces (001), (011), and (111) through a Wulff construction. This shape suggests that the (011) face is the dominating surface in the ideal morphology. A significant increase in the values of the surface energy for the (011) face versus those of the other surfaces was observed, which allowed us to find agreement between the experimental and theoretical morphologies. Our investigation of the different morphologies and structures of the β-Ag2MoO4 crystals provided insight into how the crystal morphology can be controlled so that the surface chemistry of β-Ag2MoO4 can be tuned for specific applications. The presence of structural disorder in the tetrahedral [MoO4] and octahedral [AgO6] clusters, the building blocks of β-Ag2MoO4, was used to explain the experimentally measured optical properties.
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Affiliation(s)
- Maria T Fabbro
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
- Department of Inorganic and Organic Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Carla Saliby
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
| | - Larissa R Rios
- Department of Chemistry, CDMF, Universidade Federal de São Carlos, 13565-905, São Carlos, Brazil
| | - Felipe A La Porta
- Department of Chemistry, Universidade Tecnológica Federal do Paraná, 86036-370, Londrina, Brazil
| | - Lourdes Gracia
- Department of Physic and Analytical Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Máximo S Li
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970, São Carlos, Brazil
| | - Juan Andrés
- Department of Physic and Analytical Chemistry, Universitat Jaume I, Campus Riu Sec, E-12071, Castellón, Spain
| | - Luís P S Santos
- Department of Chemistry, INCTMN, Instituto Federal do Maranhão, Monte Castelo, 65030-005, São Luís, Brazil
| | - Elson Longo
- CDMF, INCTMN, Instituto de Química, Universidade Estadual Paulista, Araraquara, 14801-907, Brazil
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Cunha FS, Sczancoski JC, Nogueira IC, de Oliveira VG, Lustosa SMC, Longo E, Cavalcante LS. Structural, morphological and optical investigation of β-Ag2MoO4 microcrystals obtained with different polar solvents. CrystEngComm 2015. [DOI: 10.1039/c5ce01662b] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this work, rietveld refinement, morphology and optical properties of β-Ag2MoO4 microcrystals were synthesized by the precipitation method using different polar solvents: water, methanol, ethanol, 1-propanol and 1-butanol.
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Affiliation(s)
- F. S. Cunha
- PPQG-DQ-CCN-Universidade Estadual do Piauí
- Teresina, Brazil
| | | | - I. C. Nogueira
- PPG em Engenharia de Materiais
- Instituto Federal do Maranhão
- São Luís, Brazil
| | | | | | - E. Longo
- Universidade Estadual Paulista
- Araraquara, Brazil
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34
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Long M, Cai W. Advanced nanoarchitectures of silver/silver compound composites for photochemical reactions. NANOSCALE 2014; 6:7730-7742. [PMID: 24922110 DOI: 10.1039/c3nr06302j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Silver/silver compound (SSC) composites have received much attention as a type of potential materials in photochemical reactions due to their high efficiency, facile syntheses and availability of raw materials. This article reviews the state-of-the-art progress on the advanced nanoarchitectures of SSC composites. We begin with a survey on the general synthetic strategies for SSC composites, and then step into relatively detailed methods for size and morphology tunable two-component and more delicate multi-component SSC nanostructures. In addition, the electronic structure-related mechanisms of such materials and the recent studies on their stability are summarized. This review also highlights some perspectives on challenges related to the SSC composites and the possible research in the future.
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Affiliation(s)
- Mingce Long
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China.
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35
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Han Q, Li G, Wang D, He E, Dong J, Gao W, Li J, Liu T, Zhang Z, Zheng H. Synthesis of Ag-SiO2 composite nanospheres and their catalytic activity. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5068-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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Dong C, Wu KL, Wei XW, Li XZ, Liu L, Ding TH, Wang J, Ye Y. Synthesis of graphene oxide–Ag2CO3composites with improved photoactivity and anti-photocorrosion. CrystEngComm 2014. [DOI: 10.1039/c3ce41755g] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Preface. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4857-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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