1
|
Liu Q, Lyu X, Chen Q, Qin Y, Wang X, Li C, Fang Z, Bao H. Fast synthesis of nanoporous Cu/Ag bimetallic triangular nanoprisms via galvanic replacement for efficient 4-nitrophenol reduction. NANOSCALE 2024. [PMID: 38440800 DOI: 10.1039/d3nr05968e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
We report the synthesis of nanoporous Cu/Ag bimetallic triangular nanoprisms (BTNPs) using a galvanic replacement method. Based on ultraviolet-visible spectroscopy (UV-vis), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), X-ray diffraction (XRD), energy dispersive spectrometry (EDS), selected area electron diffraction (SAED) and X-ray photoelectron spectroscopy (XPS) analyses, the structure of Cu/Ag BTNPs was characterized. The prepared Cu/Ag BTNPs exhibited excellent catalytic activity and good cycling stability for the reduction of 4-nitrophenol (4-NP) due to the synergistic effect between Cu and Ag elements. The kinetic rate constant (k) and turnover frequency (TOF) values reached 331 × 10-3 s-1 and 500 × 10-3 s-1, respectively, which were higher than those of previously reported Cu, Ag, Au, Cu/Ag or Cu/Au-based catalysts. We hope that the development of promising routes for high-quality BTNPs can broaden their applications in catalysis and environmental sustainability.
Collapse
Affiliation(s)
- Qiang Liu
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Xuelian Lyu
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Qiusui Chen
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Yanmin Qin
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Xing Wang
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Chen Li
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Zheng Fang
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| | - Haifeng Bao
- School of Materials Science and Engineering, State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, PR China.
| |
Collapse
|
2
|
Drinevskyi A, Zelkovskyi E, Abashkin V, Shcharbin D, Rysalskaya T, Radziuk DV. Activation of Ibuprofen via Ultrasonic Complexation with Silver in N-Doped Oxidized Graphene Nanoparticles for Microwave Chemotherapy of Cervix Tumor Tissues. ACS Biomater Sci Eng 2023; 9:182-196. [PMID: 36472577 DOI: 10.1021/acsbiomaterials.2c01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An ultrasonic method (20 kHz) is introduced to activate pristine ibuprofen organic molecular crystals via complexation with silver in nitrogen-doped oxidized graphene nanoplatforms (∼50 nm). Ultrasonic complexation occurs in a single-step procedure through the binding of the carboxylic groups with Ag and H-bond formation, involving noncovalent πC=C → πC=C* transitions in the altered phenyl ring and πPY → πCO* in ibuprofen occurring between the phenyl ring and C-O bonds as a result of interaction with hydroxyl radicals. The ibuprofen-silver complex in ≪NrGO≫ exhibits a ∼42 times higher acceleration rate than free ibuprofen of the charge transfer between hexacyanoferrate and thiosulfate ions. The increased acceleration rate can be caused by electron injection/ejection at the interface of the ≪Ag-NrGO≫ nanoplatform and formation of intermediate species (Fe(CN)5(CNSO3)x- with x = 4 or 5 and AgHS2O3) at the excess of produced H+ ions. Important for microwave chemotherapy, ibuprofen-silver complexes in the ≪NrGO≫ nanoplatform can produce H+ ions at ∼12.5 times higher rate at the applied voltage range from 0.53 to 0.60 V. ≪Ibu-Ag-NrGO≫ NPs develop ∼105 order higher changes of the electric field strength intensity than free ibuprofen in the microwave absorption range of 100-1000 MHz as revealed from the theoretical modeling of a cervix tumor tissue.
Collapse
Affiliation(s)
- Aleksey Drinevskyi
- Laboratory of Integrated Micro- and Nanosystems, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, Minsk220013, Republic of Belarus
| | - Evgenij Zelkovskyi
- Laboratory of Integrated Micro- and Nanosystems, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, Minsk220013, Republic of Belarus
| | - Viktar Abashkin
- Institute of Biophysics and Cell Engineering of National Academy of Sciences of Belarus, Academicheskaya str. 27, Minsk220072, Republic of Belarus
| | - Dzmitry Shcharbin
- Institute of Biophysics and Cell Engineering of National Academy of Sciences of Belarus, Academicheskaya str. 27, Minsk220072, Republic of Belarus
| | - Tamara Rysalskaya
- Laboratory of Integrated Micro- and Nanosystems, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, Minsk220013, Republic of Belarus
| | - Darya V Radziuk
- Laboratory of Integrated Micro- and Nanosystems, Belarusian State University of Informatics and Radioelectronics, P. Brovki Str. 6, Minsk220013, Republic of Belarus
| |
Collapse
|
3
|
Bae JH, Do SB, Cho SH, Lee KM, Lee SE, Kim TO. TiO 2 treatment using ultrasonication for bubble cavitation generation and efficiency assessment of a dye-sensitized solar cell. ULTRASONICS SONOCHEMISTRY 2022; 83:105933. [PMID: 35114551 PMCID: PMC8818570 DOI: 10.1016/j.ultsonch.2022.105933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
In this study, the impacts of different ultrasonic treatments on TiO2 particles were determined and they were used to manufacture the photoelectrodes of a dye-sensitized solar cell (DSSC). Two methods were used to prepare TiO2 particles directly sonicated by an ultrasonic horn, and TiO2 treated indirectly by an ultrasonic cleaner. TEM, XPS analysis was confirmed that cavitation bubbles generated during ultrasonication resulted in defects on the surface of TiO2 particles, and the defect induced surface activation. To understand the effect of TiO2 surface activation on energy conversion efficiency of DSSC, ultrasonic horn DSSC and ultrasonic cleaner DSSC were prepared. The UV-vis analysis exhibited that the ultrasonic horn DSSC possessed higher dye adsorption when compared to the ultrasonic cleaner DSSC, and the EIS analysis confirmed that the electron mobility was greatly increased in the ultrasonic horn DSSC. The energy conversion efficiency of the ultrasonic horn DSSC was measured to be 3.35%, which is about 45% increase in comparison to that of the non-ultrasonic treated DSSC (2.35%). In addition to this regard, recombination resistance of ultrasonic horn DSSC was calculated to be 450 Ω·cm2, increasing more than two times compared to the non-ultrasonic treated DSSC (200 Ω·cm2). Taken together, these ultrasonic treatments significantly improved the energy conversion efficiency of DSSC, which was not tried in DSSC-related research, and might lead us to develop more efficient practical route in the manufacturing of DSSC.
Collapse
Affiliation(s)
- Jae-Hun Bae
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39253, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Seong-Bin Do
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39253, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Sung-Ho Cho
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39253, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Kyung-Min Lee
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39253, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Sung-Eun Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Tae-Oh Kim
- Department of Environmental Engineering, Kumoh National Institute of Technology, Gumi 39253, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea.
| |
Collapse
|
4
|
Preeyanghaa M, Vinesh V, Neppolian B. Complete removal of Tetracycline by sonophotocatalysis using ultrasound-assisted hierarchical graphitic carbon nitride nanorods with carbon vacancies. CHEMOSPHERE 2022; 287:132379. [PMID: 34597637 DOI: 10.1016/j.chemosphere.2021.132379] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/16/2021] [Accepted: 09/25/2021] [Indexed: 06/13/2023]
Abstract
Tuning a graphitic carbon nitride (CN) structure is an effective strategy to advance its physicochemical and electronic properties. Herein, hierarchical CN nanorods with carbon vacancy were synthesized via ultrasound-assisted thermal polycondensation method wherein melamine-HONH2·HCl complex acts as a template. The hierarchical CN nanorods can facilitate multiple light scattering, provide large specific surface area with extensive reactive sites and endow abundant mass-transport channels for charge migration. The existence of carbon vacancies can serve as shallow charge trapping sites and prompt charge separation. Consequently, hierarchical CN nanorod possessed excellent sonophotodegradation efficiency of ∼100% towards Tetracycline (TC) antibiotic within 60 min under ultrasonic irradiation and visible light illumination. Moreover, the sonophotocatalytic degradation was higher than the sum of sonocatalytic and photocatalytic TC degradation using hierarchical CN nanorods due to its synergistic performance. A plausible sonophotocatalytic mechanism and TC degradation pathway using hierarchical CN nanorod were proposed. Lastly, hierarchical CN nanorod is durable and stable which can withstand the sonophotocatalytic condition even after the fifth run. This work offers an insight into hierarchical CN nanorod to advance sonophotocatalytic degradation performance for highly efficient removal of various recalcitrant pollutants.
Collapse
Affiliation(s)
- Mani Preeyanghaa
- Departments of Physics and Nanotechnology, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Vasudevan Vinesh
- Departments of Physics and Nanotechnology, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India
| | - Bernaurdshaw Neppolian
- Departments of Physics and Nanotechnology, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603203, India.
| |
Collapse
|
5
|
Villalobos-Noriega JMA, Rodríguez-León E, Rodríguez-Beas C, Larios-Rodríguez E, Plascencia-Jatomea M, Martínez-Higuera A, Acuña-Campa H, García-Galaz A, Mora-Monroy R, Alvarez-Cirerol FJ, Rodríguez-Vázquez BE, Carillo-Torres RC, Iñiguez-Palomares RA. Au@Ag Core@Shell Nanoparticles Synthesized with Rumex hymenosepalus as Antimicrobial Agent. NANOSCALE RESEARCH LETTERS 2021; 16:118. [PMID: 34292415 PMCID: PMC8298724 DOI: 10.1186/s11671-021-03572-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 07/12/2021] [Indexed: 05/15/2023]
Abstract
In this work, we used a sequential method of synthesis for gold-silver bimetallic nanoparticles with core@shell structure (Au@AgNPs). Rumex hymenosepalus root extract (Rh), which presents high content in catechins and stilbenes, was used as reductor agent in nanoparticles synthesis. Size distribution obtained by Transmission Electron Microscopy (TEM) gives a mean diameter of 36 ± 11 nm for Au@AgNPs, 24 ± 4 nm for gold nanoparticles (AuNPs), and 13 ± 3 nm for silver nanoparticles (AgNPs). The geometrical shapes of NPs were principally quasi-spherical. The thickness of the silver shell over AuNPs is around 6 nm and covered by active biomolecules onto the surface. Nanoparticles characterization included high angle annular dark field images (HAADF) recorded with a scanning transmission electron microscope (STEM), Energy-Dispersive X-ray Spectroscopy (EDS), X-Ray Diffraction (XRD), UV-Vis Spectroscopy, Zeta Potential, and Dynamic Light Scattering (DLS). Fourier Transform Infrared Spectrometer (FTIR), and X-ray Photoelectron Spectroscopy (XPS) show that nanoparticles are stabilized by extract molecules. A growth kinetics study was performed using the Gompertz model for microorganisms exposed to nanomaterials. The results indicate that AgNPs and Au@AgNPs affect the lag phase and growth rate of Escherichia coli and Candida albicans in a dose-dependent manner, with a better response for Au@AgNPs.
Collapse
Affiliation(s)
| | - Ericka Rodríguez-León
- Nanotechnology Graduate Program, Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico.
| | - César Rodríguez-Beas
- Nanotechnology Graduate Program, Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Eduardo Larios-Rodríguez
- Department of Chemical Engineering and Metallurgy, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Maribel Plascencia-Jatomea
- Department of Research and Postgraduate in Food, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Aarón Martínez-Higuera
- Nanotechnology Graduate Program, Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Heriberto Acuña-Campa
- Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Alfonso García-Galaz
- Food Science Coordination, Research Center in Food and Development (CIAD), Road Gustavo Enrique Astiazarán Rosas, No. 46, Col. La Victoria, 83304, Hermosillo, Sonora, Mexico
| | - Roberto Mora-Monroy
- Department of Physic Researching, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | | | | | - Roberto Carlos Carillo-Torres
- Nanotechnology Graduate Program, Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico
| | - Ramón A Iñiguez-Palomares
- Nanotechnology Graduate Program, Department of Physics, University of Sonora, Rosales and Transversal, 83000, Hermosillo, Sonora, Mexico.
| |
Collapse
|
6
|
Synergistic antibacterial activity of surfactant free Ag-GO nanocomposites. Sci Rep 2021; 11:196. [PMID: 33420190 PMCID: PMC7794585 DOI: 10.1038/s41598-020-80013-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/20/2020] [Indexed: 11/30/2022] Open
Abstract
Graphene oxide–silver (Ag–GO) nanocomposite has emerged as a vital antibacterial agent very recently. In this work, we report a facile one step route of Ag–GO nanocomposite formation excluding the aid of surfactants and reductants and was successfully applied to negative Escherichia Coli (E coli) to investigate antibacterial activity by varying doze concentration. The successful formation of Ag–GO nanocomposite via facile one step route was confirmed using Fourier transform infrared spectroscopy (FTIR) and Raman Spectroscopy. The absorption spectra (peak ~ 300 nm) for GO and the (peak ~ 420 nm) for silver nanoparticles were observed. XRD study confirmed the formation of Ag–GO nanocomposite while atomic force microscopy (AFM) showed crumbled GO sheets decorated with Ag nanoparticles. It was observed that the functional groups of GO facilitated the binding of Ag nanoparticles to GO network and enhanced the antibacterial activity of the nanocomposite.
Collapse
|
7
|
Kavyani S, Baharfar R. Design and characterization of Fe
3
O
4
/GO/Au‐Ag nanocomposite as an efficient catalyst for the green synthesis of spirooxindole‐dihydropyridines. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5560] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sara Kavyani
- Faculty of ChemistryUniversity of Mazandaran 4741695447 Babolsar Iran
| | - Robabeh Baharfar
- Faculty of ChemistryUniversity of Mazandaran 4741695447 Babolsar Iran
| |
Collapse
|
8
|
Bimetallic co-effect of Au-Pd alloyed nanoparticles on mesoporous silica modified g-C3N4 for single and simultaneous photocatalytic oxidation of phenol and reduction of hexavalent chromium. J Colloid Interface Sci 2020; 560:519-535. [DOI: 10.1016/j.jcis.2019.09.041] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 10/26/2022]
|
9
|
Buendía F, Anzaldo AT, Vital C, Beltrán MR. O 2 activation by AuAg clusters on a defective (100)MgO surface. J Chem Phys 2020; 152:024303. [PMID: 31941299 DOI: 10.1063/1.5129462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In the present work, we discuss the electronic properties of supported dispersed bimetallic clusters with respect to their size, geometry, and Aun/Agm (n + m = 6) composition. We have studied with supercell-density functional theory calculations the role of the charge transfer from the MgO defective support toward the cluster in the activation of O2 by AunAgm clusters. We first considered gas-phase clusters with different atomic compositions; then, we deposited all of them on a pristine (100)MgO surface and finally on a more realistic (100)MgO F-center. We performed a global and unrestricted search of the (cluster + surface) geometry. The Mexican enhanced genetic algorithm has been used to exhaustively explore the potential energy surface. Our results show that O2 activation depends on the Aun/Agm ratio. It has been found that both metals involved play different and important roles toward (a) the actual O2 dissociation and (b) weakening of the oxygen-cluster bond, which, in turn, may promote the possibility of a catalytic process to take place, such as the oxidation process of CO and NOx among others.
Collapse
Affiliation(s)
- F Buendía
- Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, 01000 CDMX, Mexico
| | - A T Anzaldo
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. 70-360, C. P. 04510, Coyoacán, Ciudad de México, Mexico
| | - Carlos Vital
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. 70-360, C. P. 04510, Coyoacán, Ciudad de México, Mexico
| | - M R Beltrán
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apdo. 70-360, C. P. 04510, Coyoacán, Ciudad de México, Mexico
| |
Collapse
|
10
|
Ganguly S, Das P, Das TK, Ghosh S, Das S, Bose M, Mondal M, Das AK, Das NC. Acoustic cavitation assisted destratified clay tactoid reinforced in situ elastomer-mimetic semi-IPN hydrogel for catalytic and bactericidal application. ULTRASONICS SONOCHEMISTRY 2020; 60:104797. [PMID: 31546086 DOI: 10.1016/j.ultsonch.2019.104797] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 09/09/2019] [Accepted: 09/15/2019] [Indexed: 06/10/2023]
Abstract
Ultrasonicaion is non-chemical process where acoustic waves have been targeted to aqueous medium dispersed precursor materials. In situ synthesis of silver nanoparticles anchored in hydrogel matrix has been opted via ~20 kHz frequency assisted (bath sonication) synthesis having the ultrasonication power intensity (UPI) of ~106 J/m2. Power intensity is inversely proportional to the surface area of the clay tactoids. The hydrogel have been prepared by in situ 20 kHz assisted sonochemical destratification of laponite clay tactoids which could be terminologically stated as 'top-down method'. Silver nanoparticles (AgNPs) have been deposited in the surfaces of the porous matrix of hydrogel via 'soak and irradiate' method. Soaking of silver ions into the gel matrix is welcomed due to their efficient stabilization and fast transformation towards AgNPs. AgNPs played the key role in catalytic reduction and bactericidal activity. Moreover, the prepared hydrogel has enough robust to withstand cyclic stress, uniaxial stress and oscillatory stress which have been extensively justified by the physico-mechanical characterizations. The gel supported catalyst showed first order reaction kinetics and less time consuming period during reduction of 4-nitrophenol as a model pollutant.
Collapse
Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Tushar Kanti Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - Sabyasachi Ghosh
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - Subhayan Das
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Madhuparna Bose
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - Mahitosh Mondal
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology, Kharagpur 721302, India
| | - Narayan Ch Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India; School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India.
| |
Collapse
|
11
|
Narayanan N, Bernaurdshaw N. Reduced Graphene Oxide Supported NiCo
2
O
4
Nano‐Rods: An Efficient, Stable and Cost‐Effective Electrocatalyst for Methanol Oxidation Reaction. ChemCatChem 2019. [DOI: 10.1002/cctc.201901496] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Naresh Narayanan
- SRM Research InstituteSRM Institute of Science and Technology Kattankulathur Chennai 603203 India
- Department of Physics and NanotechnologySRM Institute of Science and Technology Kattankulathur Chennai 603203 India
| | - Neppolian Bernaurdshaw
- SRM Research InstituteSRM Institute of Science and Technology Kattankulathur Chennai 603203 India
| |
Collapse
|
12
|
Balram D, Lian KY, Sebastian N. Ecofriendly synthesized reduced graphene oxide embellished marsh marigold-like zinc oxide nanocomposite based on ultrasonication technique for the sensitive detection of environmental pollutant hydroquinone. ULTRASONICS SONOCHEMISTRY 2019; 58:104650. [PMID: 31450365 DOI: 10.1016/j.ultsonch.2019.104650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/17/2019] [Accepted: 06/17/2019] [Indexed: 06/10/2023]
Abstract
A novel electrochemical sensor using reduced graphene oxide (RGO) decorated marsh marigold-like zinc oxide (ZnO) nanocomposite for the detection of hydroquinone (HQ) is detailed in this paper. We have adopted an ecofriendly preparation procedure for the synthesis of RGO and the synthesis of marsh marigold-like ZnO is carried out using aqueous solution method. The RGO/ZnO nanocomposite is prepared based on ultrasonication technique using a high-intensity ultrasonic bath DC200H (200 W/cm2, 40 kHz) and is followed by its precise fabrication on glassy carbon electrode (GCE). Characterizations including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, and UV visible spectroscopy of ZnO nanoparticles, RGO, and RGO/ZnO nanocomposite are analyzed in this work. Different electrochemical studies were performed in this work to investigate performance of the proposed electrochemical sensor and cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques are used to achieve this. The oxidation and reduction peak currents of RGO/ZnO modified GCE exhibited sharp peaks at very low potential of 0.13 V and 0.06 V respectively. We have obtained a high sensitivity of 8.08 μA μM-1 cm-2, ultra-low limit of detection (LOD) value of 0.01 μM, and a broad linear range of 0.1-92 μM for the proposed sensor. Moreover, the fabricated sensor exhibited excellent selectivity, good reproducibility, stability, and repeatability revealing the high efficiency of the proposed sensor. Furthermore, experiments were conducted to examine the practical feasibility of the developed sensor. The electrochemical studies conducted as part of the work shows that RGO/ZnO nanocomposite is an apt material for the highly sensitive and efficient detection of HQ.
Collapse
Affiliation(s)
- Deepak Balram
- Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, Republic of China
| | - Kuang-Yow Lian
- Department of Electrical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, Republic of China.
| | - Neethu Sebastian
- Department of Organic and Polymeric Materials, National Taipei University of Technology, No. 1, Section 3, Zhongxiao East Road, Taipei 106, Taiwan, Republic of China
| |
Collapse
|
13
|
Hareesh K, Sunitha D, Dhole SD, Bhoraskar VN, Phase DM, Williams J. One-step gamma radiation aided diffusion of Ag-Au alloy nanoparticles into polycarbonate and its application towards the reduction of 4-Nitrophenol. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.04.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
14
|
Çıplak Z, Getiren B, Gökalp C, Yıldız A, Yıldız N. Green synthesis of reduced graphene oxide-AgAu bimetallic nanocomposite: Catalytic performance. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1613227] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zafer Çıplak
- Department of Chemical Engineering, Ankara University, Ankara, Turkey
| | - Bengü Getiren
- Department of Chemical Engineering, Ankara University, Ankara, Turkey
| | - Ceren Gökalp
- Department of Chemical Engineering, Ankara University, Ankara, Turkey
| | - Atila Yıldız
- Department of Biology, Ankara University, Ankara, Turkey
| | - Nuray Yıldız
- Department of Chemical Engineering, Ankara University, Ankara, Turkey
| |
Collapse
|
15
|
Radziuk D, Mikhnavets L, Vorokhta M, Matolín V, Tabulina L, Labunov V. Sonochemical Formation of Copper/Iron‐Modified Graphene Oxide Nanocomposites for Ketorolac Delivery. Chemistry 2019; 25:6233-6245. [DOI: 10.1002/chem.201900662] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Darya Radziuk
- Laboratory of Integrated Micro- and NanosystemsBelarusian State University of Informatics and Radioelectronics P. Brovki Str. 6 220013 Minsk Republic of Belarus
| | - Lubov Mikhnavets
- Laboratory of Integrated Micro- and NanosystemsBelarusian State University of Informatics and Radioelectronics P. Brovki Str. 6 220013 Minsk Republic of Belarus
| | - Mykhailo Vorokhta
- Department of Surface and Plasma ScienceCharles University of Prague V Holešovičkách 2 18000 Prague 8 Czech Republic
| | - Vladimír Matolín
- Department of Surface and Plasma ScienceCharles University of Prague V Holešovičkách 2 18000 Prague 8 Czech Republic
| | - Ludmila Tabulina
- Laboratory of Integrated Micro- and NanosystemsBelarusian State University of Informatics and Radioelectronics P. Brovki Str. 6 220013 Minsk Republic of Belarus
| | - Vladimir Labunov
- Laboratory of Integrated Micro- and NanosystemsBelarusian State University of Informatics and Radioelectronics P. Brovki Str. 6 220013 Minsk Republic of Belarus
| |
Collapse
|
16
|
Li W, Allioux FM, Lee J, Ashokkumar M, Dumée LF. Ultrasound-assisted fabrication of metal nano-porous shells across polymer beads and their catalytic activity for reduction of 4-nitrophenol. ULTRASONICS SONOCHEMISTRY 2018; 49:63-68. [PMID: 30056025 DOI: 10.1016/j.ultsonch.2018.07.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
Metal nano-porous architectures are a novel class of nanomaterials which has been applied in the fields of catalysis, sensing and gas storage because of their high surface-to-volume ratio, high mechanical strength and long-range ordered architectures. A commonly-used synthetic strategies to achieve architectures with high precision and diverse porosity design is the seed-and-growth method. In this work, using a dual-frequency sequential sonication approach, we have demonstrated a sonochemical-assisted one-pot seeding with a successive shell growth synthetic strategy for mesoporous metal deposition via a gold (Au) nanoparticle and poly(styrene) beads system. A uniform coating of gold nanoparticle seeds with dense surface coverage was formed by first employing 300 kHz ultrasound irradiation while the nano-porous shell growth was then performed under 1 MHz ultrasonic frequency. The precise control over the process conditions and parameters allowed for the design of well-defined shell thicknesses and surface roughness and area. The catalytic property of the MNMs was evaluated for the degradation of 4-nitrophenol and a high catalytic activity was achieved for the most porous gold structures, suggesting synergistic effects between the architecture of the nanomaterials and their surface reactivity.
Collapse
Affiliation(s)
- Wu Li
- The University of Melbourne, Department of Chemistry, Parkville, Victoria 3010, Australia
| | - Francois-Marie Allioux
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia
| | - Judy Lee
- The University of Surrey, Department of Chemical and Process Engineering, Surrey GU27XH, United Kingdom
| | | | - Ludovic F Dumée
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, Victoria 3216, Australia.
| |
Collapse
|
17
|
Vellaichamy B, Prakash P, Thomas J. Synthesis of AuNPs@RGO nanosheets for sustainable catalysis toward nitrophenols reduction. ULTRASONICS SONOCHEMISTRY 2018; 48:362-369. [PMID: 30080561 DOI: 10.1016/j.ultsonch.2018.05.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/24/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
A facile, green and one-pot synthesis strategy for the convenient preparation of well-dispersed gold nanoparticles (AuNPs) decorated reduced graphene oxide (RGO) without using any other toxic chemicals and reductants is reported herein. The synthesized AuNPs@RGO hybrid nanomaterials were characterized by UV-visible absorption spectroscopy, FT-IR, XRD, Raman, SEM, TEM and EDX analysis. The AuNPs@RGO acts as an efficient catalyst for the reduction of organic nitroaromatics (2- & 4-nitro phenols) in the presence of NaBH4. This newly synthesized hybrid AuNPs@RGO has superior catalytic activity over any other Au-nanomaterials ever reported. The rate of nitro aromatics reduction is found to be dependent on concentrations of substrate, reductant and catalyst. The mechanisms for the synthesis and catalytic reduction have been studied and discussed.
Collapse
Affiliation(s)
| | | | - Jeena Thomas
- Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamil Nadu, India
| |
Collapse
|
18
|
Sharma G, Kumar A, Devi K, Sharma S, Naushad M, Ghfar AA, Ahamad T, Stadler FJ. Guar gum-crosslinked-Soya lecithin nanohydrogel sheets as effective adsorbent for the removal of thiophanate methyl fungicide. Int J Biol Macromol 2018; 114:295-305. [PMID: 29572143 DOI: 10.1016/j.ijbiomac.2018.03.093] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 03/11/2018] [Accepted: 03/19/2018] [Indexed: 11/15/2022]
Abstract
Rapid increase in use of fungicides for the agricultural and industrial purposes has marked the deterioration of water resources which ultimately affects the human life. Accordingly, various attempts have been made in the removal of these noxious compounds. In the same context, we are presenting biopolymers based nanohydrogel sheets; guar gum-crosslinked-Soya lecithin nanohydrogel sheets (GG-crosslinked-SY NHS) used for the effective removal of a fungicide; thiophanate methyl from aqueous solution. Guar gum and soya lecithin were employed as the biopolymers in the fabrication of nanohydrogel sheets due to their non- toxic nature, easy availability, cheapness and significant properties. Due to the presence of highly reactive functional groups onto the surface of GG-crosslinked-SY NHS, good adsorption results have been obtained. Maximum adsorption capacity of 59.205mg/g was observed with 20mg GG-crosslinked-SY NHS and 25ppm thiophanate methyl solution concentration as calculated from the Langmuir isotherm. Results showed that neutral pH favoured the adsorption process. Kinetics results were indicative of the physical interactions between the thiophanate methyl and GG-crosslinked-SY NHS surface. Thermodynamic results have shown the spontaneous and endothermic adsorption process.
Collapse
Affiliation(s)
- Gaurav Sharma
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab. for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518060, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China; School of Chemistry, Shoolini University, Solan 173212, Himachal Pradesh, India.
| | - Amit Kumar
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab. for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518060, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China; School of Chemistry, Shoolini University, Solan 173212, Himachal Pradesh, India
| | - Kunjana Devi
- School of Chemistry, Shoolini University, Solan 173212, Himachal Pradesh, India
| | - Shweta Sharma
- School of Chemistry, Shoolini University, Solan 173212, Himachal Pradesh, India
| | - Mu Naushad
- Department of Chemistry, College of Science, Bld.#5, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ayman A Ghfar
- Department of Chemistry, College of Science, Bld.#5, King Saud University, Riyadh 11451, Saudi Arabia
| | - Tansir Ahamad
- Department of Chemistry, College of Science, Bld.#5, King Saud University, Riyadh 11451, Saudi Arabia
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab. for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518060, PR China.
| |
Collapse
|
19
|
Mohammadi Z, Entezari MH. Sono-synthesis approach in uniform loading of ultrafine Ag nanoparticles on reduced graphene oxide nanosheets: An efficient catalyst for the reduction of 4-Nitrophenol. ULTRASONICS SONOCHEMISTRY 2018; 44:1-13. [PMID: 29680590 DOI: 10.1016/j.ultsonch.2018.01.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 01/16/2018] [Accepted: 01/26/2018] [Indexed: 05/26/2023]
Abstract
In this research, a facile, one step and eco-friendly sonochemical rout was utilized to the synthesis of a new nanocomposite by Ag nanoparticle anchored on reduced graphene oxide (rGO-Ag-U). Sonication was carried out by using low frequency ultrasound (20 kHz) under ambient condition. In this way, graphene oxide and Ag+ ions simultaneously reduced by polyol without using any additional reactants or capping agents. The polyol serves as both solvent and low toxic reducing agent. To achieve the best synthesis condition of rGO-Ag-U nanocomposite, the effects of irradiation time, ultrasonic amplitude and reaction temperature were investigated. In comparison, the synthesis of rGO-Ag was also carried out via reflux as a classical method (rGO-Ag-C). It was found that ultrasonic irradiation for 10 min at 70% amplitude was sufficient for the synthesis of rGO-Ag-U. Several analytical techniques were used to characterize the resulting nanocomposites such as UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The UV-Vis spectra show a shift of GO band to a higher wavelength which is due to the reduction of sp3 sites. The results of TEM also confirm the smaller Ag nanoparticle (about 18 nm) which uniformly decorated on rGO nanosheets by sonochemical method than classical method. The experimental data suggest that among the synthesized nanocomposites, rGO-Ag-U exhibited better catalytic activity (kapp = 1.18 min-1) towards the reduction of 4-Nitrophenol to 4-Aminophenol in the presence of sodium borohydride (NaBH4).
Collapse
Affiliation(s)
- Zahra Mohammadi
- Sonochemical Research Center, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91779 Mashhad, Iran
| | - Mohammad H Entezari
- Sonochemical Research Center, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91779 Mashhad, Iran; Environmental Chemistry Research Center, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91779 Mashhad, Iran.
| |
Collapse
|
20
|
Amanulla B, Subbu HKR, Ramaraj SK. A sonochemical synthesis of cyclodextrin functionalized Au-FeNPs for colorimetric detection of Cr 6+ in different industrial waste water. ULTRASONICS SONOCHEMISTRY 2018; 42:747-753. [PMID: 29429726 DOI: 10.1016/j.ultsonch.2017.12.041] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 12/20/2017] [Accepted: 12/20/2017] [Indexed: 06/08/2023]
Abstract
This paper describes a simple, selective and sensitive colorimetric sensing of Cr6+ ions using β-Cyclodextrin (β-CD) functionalized gold-iron nanoparticles (β-CD/Au-FeNPs). The sonochemically synthesized nanoparticles are winered in colour due to the SPR band of β-CD functionalized bimetalic nanoparticles Au-FeNPs. The capping and stabilizing of Au-FeNPs by redox β-CD is confirmed by FT-IR. The particles are spherical in shape and it posses the effective diameter of 18-20 nm. Under optimized conditions, in the presence of Cr6+ the wine red Au-FeNPs solution was turned to colourless, accompanying the broadening and red shifting of SPR band. The ratio between the absorbance wavelength at 573 nm to 535 nm (A573/A535) is linearly correlated with the Cr6+ concentrations ranging from 50 nM to 500 nM, with a detection limit of Cr6+ of 2.5 nM was achieved for the first time using β-CD/Au-FeNPs by spectrophotometry. The selectivity of the β-CD/Au-FeNPs towards other interfering metal ions. Finally the proposed method has been successfully employed for the determination of Cr6+ ion in various industrial waste water with good recoveries.
Collapse
Affiliation(s)
- Baishnisha Amanulla
- Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamilnadu, India
| | | | - Sayee Kannan Ramaraj
- Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamilnadu, India.
| |
Collapse
|
21
|
Ganguly S, Ray D, Das P, Maity PP, Mondal S, Aswal VK, Dhara S, Das NC. Mechanically robust dual responsive water dispersible-graphene based conductive elastomeric hydrogel for tunable pulsatile drug release. ULTRASONICS SONOCHEMISTRY 2018; 42:212-227. [PMID: 29429663 DOI: 10.1016/j.ultsonch.2017.11.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/20/2017] [Accepted: 11/20/2017] [Indexed: 06/08/2023]
Abstract
Nanohybrid hydrogels based on pristine graphene with enhanced toughness and dual responsive drug delivery feature is opening a new era for smart materials. Here pristine graphene hydrogels are synthesized by in situ free radical polymerization where graphene platelets are the nanobuiliding blocks to withstand external stress and shows reversible ductility. Such uniqueness is a mere reflection of rubber-like elasticity on the hydrogels. These nanobuilding blocks serve also the extensive physisorption which enhances the physical crosslinking inside the gel matrix. Besides the pH-responsive drug release features, these hydrogels are also implemented as a pulsatile drug delivery device. The electric responsive drug release behaviours are noticed and hypothesized by the formation of conducting network in the polyelectrolytic hydrogel matrix. The hydrogels are also tested as good biocompatibility and feasible cell-attachment during live-dead cell adhesion study. The drug release characteristics can also be tuned by adjusting the conducting filler loading into the gel matrix. As of our knowledge, this type of hydrogels with rubber-like consistency, high mechanical property, tunable and dual responsive drug delivery feature and very good human cell compatible is the first to report.
Collapse
Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Priti Prasanna Maity
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Subhadip Mondal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Narayan Ch Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India; School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India.
| |
Collapse
|
22
|
Muthoosamy K, Manickam S. State of the art and recent advances in the ultrasound-assisted synthesis, exfoliation and functionalization of graphene derivatives. ULTRASONICS SONOCHEMISTRY 2017; 39:478-493. [PMID: 28732972 DOI: 10.1016/j.ultsonch.2017.05.019] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/12/2017] [Accepted: 05/13/2017] [Indexed: 05/23/2023]
Abstract
Sonochemistry, an almost a century old technique was predominantly employed in the cleaning and extraction processes but this tool has now slowly gained tremendous attention in the synthesis of nanoparticles (NPs) where particles of sub-micron have been produced with great stability. Following this, ultrasonication techniques have been largely employed in graphene synthesis and its dispersion in various solvents which would conventionally take days and offers poor yield. Ultrasonic irradiation allows the production of thin-layered graphene oxide (GO) and reduced graphene oxide (RGO) of up to 1nm thickness and can be produced in single layers. With ultrasonic treatment, reactions were made easy whereby graphite can be directly exfoliated to graphene layers. Oxidation to GO can also be carried out within minutes and reduction to RGO is possible without the use of any reducing agents. In addition, various geometry of graphene can be produced such as scrolled graphene, sponge or foam graphene, smooth as well as those with rough edges, each serving its own unique purpose in various applications such as supercapacitor, catalysis, biomedical, etc. In ultrasonic-assisted reaction, deposition of metal NPs on graphene was more homogeneous with custom-made patterns such as core-shell formation, discs, clusters and specific deposition at the edges of graphene sheets. Graphene derivatives with the aid of ultrasonication are the perfect catalyst for various organic reactions as well as an excellent adsorbent. Reactions which used to take hours and days were significantly reduced to minutes with exceedingly high yields. In a more recent approach, sonophotocatalysis was employed for the combined effect of sonication and photocatalysis of metal deposited graphene. The system was highly efficient in organic dye adsorption. This review provides detailed fundamental concepts of ultrasonochemistry for the synthesis of graphene, its dispersion, exfoliation as well as its functionalization, with great emphasis only based on recent publications. Necessary parameters of sonication such as frequency, power input, sonication time, type of sonication as well as temperature and dual-frequency sonication are discussed in great length to provide an overview of the resultant graphene products.
Collapse
Affiliation(s)
- Kasturi Muthoosamy
- Nanotechnology and Advanced Materials (NATAM), Faculty of Engineering, University of Nottingham Malaysia Campus (UNMC), 43500 Semenyih, Selangor, Malaysia.
| | - Sivakumar Manickam
- Nanotechnology and Advanced Materials (NATAM), Faculty of Engineering, University of Nottingham Malaysia Campus (UNMC), 43500 Semenyih, Selangor, Malaysia; Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus (UNMC), 43500 Semenyih, Selangor, Malaysia.
| |
Collapse
|
23
|
Ganguly S, Das P, Bose M, Das TK, Mondal S, Das AK, Das NC. Sonochemical green reduction to prepare Ag nanoparticles decorated graphene sheets for catalytic performance and antibacterial application. ULTRASONICS SONOCHEMISTRY 2017; 39:577-588. [PMID: 28732982 DOI: 10.1016/j.ultsonch.2017.05.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 05/24/2023]
Abstract
The emerging popularity and wide acceptance of green chemistry and environmentally benign/ecofriendly approaches have comprehensively considered for catalyst synthesis methods. Natural resource derived carbogenic quantum dots has been used in assistance with ultrasonic shock wave to graphene oxide (GO) aqueous dispersion in order to prepare reduced graphene oxide decorated with silver nanoparticles following the 'top-down' method. The total reduction process is done without using any toxic external reducing agents and any surfactants or stabilizers, thus it can be accepted as green method. Sonochemical destratification of the GO layers provides green attributes due to scalable, non-hazardous and relatively fast reduction to enhance surface area of the GO. Arresting the silver nanoparticles onto basal planes of graphene oxide can act as an efficient solid state support catalyst for fast reduction of toxic nitro aryls. Besides this work also reports bactericidal feature exhibited by the catalyst. Thus a dual functioning nanomaterial has been successfully developed which can be a suitable alternative for reductive forthcoming specialty/multifunctional membrane and other high-end medicinal or industrial applications.
Collapse
Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Madhuparna Bose
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Tushar Kanti Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
| | - Subhadip Mondal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology, Kharagpur, 721302, India
| | - Narayan C Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India; School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur, 721302, India.
| |
Collapse
|
24
|
Thanh TD, Balamurugan J, Hien HV, Kim NH, Lee JH. A novel sensitive sensor for serotonin based on high-quality of AuAg nanoalloy encapsulated graphene electrocatalyst. Biosens Bioelectron 2017; 96:186-193. [DOI: 10.1016/j.bios.2017.05.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/26/2017] [Accepted: 05/05/2017] [Indexed: 12/01/2022]
|
25
|
Soltani T, Lee BK. Low intensity-ultrasonic irradiation for highly efficient, eco-friendly and fast synthesis of graphene oxide. ULTRASONICS SONOCHEMISTRY 2017; 38:693-703. [PMID: 27622703 DOI: 10.1016/j.ultsonch.2016.08.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 07/20/2016] [Accepted: 08/07/2016] [Indexed: 06/06/2023]
Abstract
High quality graphene oxide (GO) with low layer number (less than five layers) and large inter-layer space was produced via a new and efficient method using environmentally friendly, fast and economic ultrasonic radiation. The ultrasonic method neither generated any toxic gas nor required any NaNO3, which have been the main drawbacks of the Hummers methods. The major obstacles of the recently reported improved Hummers method for GO synthesis, such as high reaction temperature (50°C) and long reaction time (12h), were successfully solved using a low intensity-ultrasonic bath for 45min at 30°C, which significantly reduced the reaction time and energy consumption for GO synthesis. Furthermore, ultrasonic GO exhibited higher surface area, higher crystallinity and higher oxidation efficiency with many hydrophilic groups, fewer sheets with higher spaces between them, a higher sp3/sp2 ratio, and more uniform size distribution than classically prepared GO. Therefore, the new ultrasonic method could be applicable for the sustainable and large-scale production of GO. The production yield of the ultrasonic-assisted GO was 1.25-fold greater than the GO synthesized with the improved Hummers method. Furthermore, the required production cost based on total energy consumption for ultrasonic GO was only 6.5% of that for classical GO.
Collapse
Affiliation(s)
- Tayyebeh Soltani
- Department of Civil and Environmental Engineering, University of Ulsan, Nam-gu, Daehak-ro 93, Ulsan 680-749, Republic of Korea
| | - Byeong-Kyu Lee
- Department of Civil and Environmental Engineering, University of Ulsan, Nam-gu, Daehak-ro 93, Ulsan 680-749, Republic of Korea.
| |
Collapse
|
26
|
High index surfaces of Au-nanocrystals supported on one-dimensional MoO3-nanorod as a bi-functional electrocatalyst for ethanol oxidation and oxygen reduction. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Tang D, Zhang G. Ultrasonic-assistant fabrication of cocoon-like Ag/AgFeO 2 nanocatalyst with excellent plasmon enhanced visible-light photocatalytic activity. ULTRASONICS SONOCHEMISTRY 2017; 37:208-215. [PMID: 28427625 DOI: 10.1016/j.ultsonch.2017.01.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 05/09/2023]
Abstract
The AgFeO2 delafossite was reported as a potential photocatalyst as well as its intense recombination rate of photogeneration charge carriers. In this work, we utilized plasmon modification method to enhance the photocatalytic activity of AgFeO2. Silkworm cocoon like Ag/AgFeO2 nanocatalyst was synthesized by an ultrasonic enhanced reduction method. XRD, HRTEM and XPS results demonstrated the well dispersed Ag0 on the surface of AgFeO2. Under visible light irradiation, 20mg/L of ARG solution was completely degraded by 0.25g/L of Ag/AgFeO2 photocatalyst with pseudo-first-order rate of 0.040min-1. The inducement of the prominently enhanced photocatalytic activity of Ag/AgFeO2 was deeply analyzed. Significant decreased intensity of photoluminescence (PL) spectra suggested the superior separation of photo-induced electrons and holes of Ag/AgFeO2 as compared to that of AgFeO2. The free h+ was confirmed as the dominant active species for the pollutant degradation. Ultimately, the photodegradation mechanism was proposed and discussed.
Collapse
Affiliation(s)
- Dandan Tang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Hubei Provincial Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China
| | - Gaoke Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Hubei Provincial Collaborative Innovation Center for High Efficient Utilization of Vanadium Resources, School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
| |
Collapse
|
28
|
Sonochemical Synthesis of PdAg/RGO Nanocomposite as an Efficient Electrocatalyst for Both Ethanol Oxidation and Oxygen Reduction Reaction with High CO Tolerance. Electrocatalysis (N Y) 2017. [DOI: 10.1007/s12678-017-0391-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
29
|
Vinoth R, Babu SG, Bharti V, Gupta V, Navaneethan M, Bhat SV, Muthamizhchelvan C, Ramamurthy PC, Sharma C, Aswal DK, Hayakawa Y, Neppolian B. Ruthenium based metallopolymer grafted reduced graphene oxide as a new hybrid solar light harvester in polymer solar cells. Sci Rep 2017; 7:43133. [PMID: 28225039 PMCID: PMC5320515 DOI: 10.1038/srep43133] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/19/2017] [Indexed: 11/22/2022] Open
Abstract
A new class of pyridyl benzimdazole based Ru complex decorated polyaniline assembly (PANI-Ru) was covalently grafted onto reduced graphene oxide sheets (rGO) via covalent functionalization approach. The covalent attachment of PANI-Ru with rGO was confirmed from XPS analysis and Raman spectroscopy. The chemical bonding between PANI-Ru and rGO induced the electron transfer from Ru complex to rGO via backbone of the conjugated PANI chain. The resultant hybrid metallopolymer assembly was successfully demonstrated as an electron donor in bulk heterojunction polymer solar cells (PSCs). A PSC device fabricated with rGO/PANI-Ru showed an utmost ~6 fold and 2 fold enhancement in open circuit potential (Voc) and short circuit current density (Jsc) with respect to the standard device made with PANI-Ru (i.e., without rGO) under the illumination of AM 1.5 G. The excellent electronic properties of rGO significantly improved the electron injection from PANI-Ru to PCBM and in turn the overall performance of the PSC device was enhanced. The ultrafast excited state charge separation and electron transfer role of rGO sheet in hybrid metallopolymer was confirmed from ultrafast spectroscopy measurements. This covalent modification of rGO with metallopolymer assembly may open a new strategy for the development of new hybrid nanomaterials for light harvesting applications.
Collapse
Affiliation(s)
- R. Vinoth
- SRM Research Institute, SRM University, Kattankulathur, Kancheepuram 603203 (D.t.), Tamil Nadu, India
| | - S. Ganesh Babu
- SRM Research Institute, SRM University, Kattankulathur, Kancheepuram 603203 (D.t.), Tamil Nadu, India
| | - Vishal Bharti
- Organic and Hybrid Solar Cell Group, National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - V. Gupta
- Organic and Hybrid Solar Cell Group, National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - M. Navaneethan
- Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka 432-8011, Japan
| | - S. Venkataprasad Bhat
- SRM Research Institute, SRM University, Kattankulathur, Kancheepuram 603203 (D.t.), Tamil Nadu, India
| | - C. Muthamizhchelvan
- Center for Materials Science and Nano Devices, Department of Physics, SRM University, Kattankulathur, Kancheepuram 603203 (D.t.), Tamil Nadu, India
| | - Praveen C. Ramamurthy
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Chhavi Sharma
- Ultrafast Optoelectronics and Terahertz Photonics group, Physics of Energy Harvesting Division CSIR-National Physical Laboratory, New Delhi, 110012, India
| | - Dinesh K. Aswal
- National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Yasuhiro Hayakawa
- Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka 432-8011, Japan
| | - B. Neppolian
- SRM Research Institute, SRM University, Kattankulathur, Kancheepuram 603203 (D.t.), Tamil Nadu, India
| |
Collapse
|
30
|
Liu YY, Guo X, Zhu L, Wang XJ, Ge C, Zhao L, Chen J, Zhang Y, Wang ZM, Sun LT. ZnO nanosheet-assisted immobilization of Ag nanoparticles on graphene/Ni foam for highly efficient reduction of 4-nitrophenol. RSC Adv 2017. [DOI: 10.1039/c7ra01296a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ZnO nanosheet-assisted immobilization of Ag nanoparticles on graphene/Ni foam forming a novel hybrid structure for catalysis.
Collapse
|
31
|
Maktedar SS, Mehetre SS, Avashthi G, Singh M. In situ sonochemical reduction and direct functionalization of graphene oxide: A robust approach with thermal and biomedical applications. ULTRASONICS SONOCHEMISTRY 2017; 34:67-77. [PMID: 27773294 DOI: 10.1016/j.ultsonch.2016.05.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/08/2016] [Accepted: 05/09/2016] [Indexed: 06/06/2023]
Abstract
The rapid, robust, scalable and non-hazardous sonochemical approach for in situ reduction and direct functionalization of graphene oxide has been developed for non-toxic biomedical applications. The graphene oxide (GrO) was directly functionalized with tryptamine (TA) without using any hazardous acylating and coupling reagents. The reaction was completed within 20min. An impact of ultrasound was inferred for a direct functionalization with other conventional methods. The evolved electronic states were confirmed with near edge X-ray absorption fine structure (NEXAFS). The direct covalent functionalization and formation of f-(TA) GrO was proven with FTIR, 13C solid state NMR, XPS, XRD, Raman' HRTEM, AFM and TGA. The total percentage weight loss in TGA confirms an enhanced thermal stability of f-(TA) GrO. The f-(TA) GrO was further explored for an investigation of in vitro antimicrobial activity to ensure the health and environmental safety. An outstanding antibacterial activity of f-(TA) GrO was found against gram positive Staphylococcus aureus at MIC 128mgmL-1. It confirms a suitability of f-(TA) GrO for thermally stable antibacterial coating. The f-(TA) GrO showed 39.14-48.9% antioxidant activities, evaluated with 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical assay. The inherent cytotoxicity of f-(TA) GrO was evaluated with SRB assay to living cells, MCF-7 and Vero. The estimated cell viabilities were >80% upon addition of f-(TA) GrO over a wide concentration range of 10-80μgmL-1. The high cytocompatibility of f-(TA) GrO confirms the low toxicity and an excellent biocompatibility. The morphological effect on Vero cell line, evidently confirmed the biocompatibility of f-(TA) GrO. Therefore, f-(TA) GrO was emerged as an advanced functional biomaterial for thermal and biomedical applications.
Collapse
Affiliation(s)
- Shrikant S Maktedar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| | - Shantilal S Mehetre
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Gopal Avashthi
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Man Singh
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| |
Collapse
|
32
|
Rameshbabu R, Vinoth R, Navaneethan M, Hayakawa Y, Neppolian B. Fabrication of Cu2MoS4 hollow nanotubes with rGO sheets for enhanced visible light photocatalytic performance. CrystEngComm 2017. [DOI: 10.1039/c6ce02337a] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
33
|
Optical and catalytic properties of Au-Ag bimetallic nanocomposites. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1135-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
34
|
Rameshbabu R, Neppolian B. Surfactant Assisted Hydrothermal Synthesis of Superparamagnetic ZnFe2O4 Nanoparticles as an Efficient Visible-Light Photocatalyst for the Degradation of Organic Pollutant. J CLUST SCI 2016. [DOI: 10.1007/s10876-016-1057-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
35
|
Karabiberoğlu ŞU, Koçak ÇC, Koçak S, Dursun Z. Polymer Film Supported Bimetallic Au-Ag Catalysts for Electrocatalytic Oxidation of Ammonia Borane in Alkaline Media. NANO-MICRO LETTERS 2016; 8:358-370. [PMID: 30460294 PMCID: PMC6223689 DOI: 10.1007/s40820-016-0095-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 05/27/2016] [Indexed: 05/27/2023]
Abstract
ABSTRACT Ammonia borane is widely used in most areas including fuel cell applications. The present paper describes electrochemical behavior of ammonia borane in alkaline media on the poly(p-aminophenol) film modified with Au and Ag bimetallic nanoparticles. The glassy carbon electrode was firstly covered with polymeric film electrochemically and then, Au, Ag, and Au-Ag nanoparticles were deposited on the polymeric film, respectively. The surface morphology and chemical composition of these electrodes were examined by scanning electron microscopy, transmission electron microscopy, electrochemical impedance spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. It was found that alloyed Au-Ag bimetallic nanoparticles are formed. Electrochemical measurements indicate that the developed electrode modified by Au-Ag bimetallic nanoparticles exhibit the highest electrocatalytic activity for ammonia borane oxidation in alkaline media. The rotating disk electrode voltammetry demonstrates that the developed electrode can catalyze almost six-electron oxidation pathway of ammonia borane. Our results may be attractive for anode materials of ammonia borane fuel cells under alkaline conditions. GRAPHICAL ABSTRACT
Collapse
Affiliation(s)
| | - Çağrı Ceylan Koçak
- Occupational Health and Safety Department, Bergama Vocational School, Dokuz Eylul University, Izmir, Turkey
| | - Süleyman Koçak
- Department of Chemistry, Science and Art Faculty, Celal Bayar University, 45040 Manisa, Turkey
| | - Zekerya Dursun
- Department of Chemistry, Science Faculty, Ege University, 35100 Bornova, Izmir, Turkey
| |
Collapse
|
36
|
Zhang WL, Tian Y, Liu YD, Song ZQ, Liu JQ, Choi HJ. Large scale and facile sonochemical synthesis of magnetic graphene oxide nanocomposites and their dual electro/magneto-stimuli responses. RSC Adv 2016. [DOI: 10.1039/c6ra12985d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetic Fe3O4/GO nanocomposites have been prepared via an effective electrostatic strategy under ultrasonic waves. Their appealing dual electro/magnetorheological (ER/MR) performances were investigated under applied electric or magnetic fields.
Collapse
Affiliation(s)
- Wen Ling Zhang
- College of Materials Science and Engineering
- Laboratory of Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Yu Tian
- State Key Laboratory of Tribology
- Tsinghua University
- Beijing 100084
- China
| | - Ying Dan Liu
- State Key Laboratory of Metastable Materials Science and Technology
- Yanshan University
- Qinhuangdao 066004
- China
| | - Zhong Qian Song
- College of Materials Science and Engineering
- Laboratory of Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Jing Quan Liu
- College of Materials Science and Engineering
- Laboratory of Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
| | - Hyoung Jin Choi
- Department of Polymer Science and Engineering
- Inha University
- Incheon 402-751
- Korea
| |
Collapse
|
37
|
Vinoth R, Karthik P, Muthamizhchelvan C, Neppolian B, Ashokkumar M. Carrier separation and charge transport characteristics of reduced graphene oxide supported visible-light active photocatalysts. Phys Chem Chem Phys 2016; 18:5179-91. [DOI: 10.1039/c5cp08041j] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Extending the absorption to the visible region by tuning the optical band-gap of semiconductors and preventing charge carrier recombination are important parameters to achieve a higher efficiency in the field of photocatalysis.
Collapse
|
38
|
Kim JD, Choi HC. Ag Nanoparticles Supported on Graphene Oxide as Highly Efficient and Recyclable Catalysts for the Reduction of 4-Nitrophenol. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10457] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ji Dang Kim
- Department of Chemistry; Chonnam National University; Gwangju 500-757 Korea
| | - Hyun Chul Choi
- Department of Chemistry; Chonnam National University; Gwangju 500-757 Korea
| |
Collapse
|
39
|
Xu Y, Chen L, Wang X, Yao W, Zhang Q. Recent advances in noble metal based composite nanocatalysts: colloidal synthesis, properties, and catalytic applications. NANOSCALE 2015; 7:10559-10583. [PMID: 26036784 DOI: 10.1039/c5nr02216a] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This Review article provides a report on progress in the synthesis, properties and catalytic applications of noble metal based composite nanomaterials. We begin with a brief discussion on the categories of various composite materials. We then present some important colloidal synthetic approaches to the composite nanostructures; here, major attention has been paid to bimetallic nanoparticles. We also introduce some important physiochemical properties that are beneficial from composite nanomaterials. Finally, we highlight the catalytic applications of such composite nanoparticles and conclude with remarks on prospective future directions.
Collapse
Affiliation(s)
- Yong Xu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China.
| | | | | | | | | |
Collapse
|
40
|
Yao T, Zuo Q, Wang H, Wu J, Zhang X, Sun J, Cui T. Preparation of PdxAuy bimetallic nanostructures with controllable morphologies supported on reduced graphene oxide nanosheets and wrapped in a polypyrrole layer. RSC Adv 2015. [DOI: 10.1039/c5ra17081h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one-step method to prepare reduced graphene oxide/PdxAuy/polypyrrole composites with good catalytic activity was introduced. The morphologies of alloy nanostructures could turn to be spherical, coral-like and porous cluster-like.
Collapse
Affiliation(s)
- Tongjie Yao
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- China
- The Academy of Fundamental and Interdisciplinary Science
| | - Quan Zuo
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Hao Wang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Jie Wu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
| | - Xiao Zhang
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- China
- The Academy of Fundamental and Interdisciplinary Science
| | - Jianmin Sun
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090
- China
- The Academy of Fundamental and Interdisciplinary Science
| | - Tieyu Cui
- The Academy of Fundamental and Interdisciplinary Science
- Harbin Institute of Technology
- Harbin 150080
- China
| |
Collapse
|
41
|
Yue Z, Chu D, Huang H, Huang J, Yang P, Du Y, Zhu M, Lu C. A novel heterogeneous hybrid by incorporation of Nb2O5 microspheres and reduced graphene oxide for photocatalytic H2 evolution under visible light irradiation. RSC Adv 2015. [DOI: 10.1039/c5ra05348j] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel heterogeneous hybrid composed of Nb2O5 microspheres and reduced graphene oxide as photocatalyst exhibits superior photocatalytic activity and stability.
Collapse
Affiliation(s)
- Zongkuan Yue
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Dongmei Chu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Hui Huang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jie Huang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Ping Yang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yukou Du
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Mingshan Zhu
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Cheng Lu
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| |
Collapse
|