1
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Nasiri H, Abbasian K, Salahandish M, Elyasi SN. Sensitive surface plasmon resonance biosensor by optimized carboxylate functionalized carbon nanotubes/chitosan for amlodipine detecting. Talanta 2024; 276:126249. [PMID: 38743970 DOI: 10.1016/j.talanta.2024.126249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
The adoption of biophotonic sensing technologies holds significant promise for application in health care and biomedical industries in all aspects of human life. Then, this piece of writing employs the powerful effective medium theory and FDTD simulation to anticipate the most favorable state and plasmonic attributes of a magnificent nanocomposite, comprising carboxylate functionalized carbon nanotubes and chitosan (CS). Furthermore, it thoroughly explores the exhibited surface plasmon resonance behaviors of this composite versus the quantity of CS variation. Subsequently, enlightening simulations are conducted on the nanocomposite with a delicate layer and a modified golden structure integrating as a composite. The intricate simulations eventually unveil an optimal combination to pave the way for crafting an exceptional specific biosensor that far surpasses its counterpart as a mere Au thin layer in terms of excellence. The proposed biosensor demonstrated linear behavior across a wide range from 0.01 μM to 150 μM and achieved a detection limit of 10 nM, with a sensitivity of 134◦RIU-1.
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Affiliation(s)
- Hassan Nasiri
- Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.
| | - Karim Abbasian
- Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
| | - Mohammad Salahandish
- Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran
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2
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Nguyen DB, Ha VP, Vuong VD, Chien YH, Le TV, Chu CY. Simulation and Verification of the Direct Current Electric Field on Fabricating High Porosity f-MWCNTs Thin Films by Electrophoretic Deposition Technique. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3883-3894. [PMID: 36898055 DOI: 10.1021/acs.langmuir.2c03116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Electrophoretic deposition (EPD) is the potential process in high porosity thin films' fabrication or complex surface coating for perovskite photovoltaics. Here, the electrostatic simulation is introduced to optimize the EPD cell design for the cathodic EPD process based on functionalized multiwalled carbon nanotubes (f-MWCNTs). The similarity between the thin film structure and the electric field simulation is evaluated by scanning electron microscopy (SEM) and atomic force microscopy (AFM) results. The thin-film surface at the edge has a higher roughness (Ra) compared to the center position (16.48 > 10.26 nm). The f-MWCNTs at the edge position tend to be twisted and bent due to the torque of the electric field. The Raman results show that f-MWCNTs with low defect density are more easily to be positively charged and deposited on the ITO surface. The distribution of oxygen and aluminum atoms in the thin film reveals that the aluminum atoms tend to have adsorption/electrostatic attraction to the interlayer defect positions of f-MWCNTs without individually depositing onto the cathode. Finally, this study can reduce the cost and time for the scale-up process by optimizing the input parameters for the complete cathodic electrophoretic deposition process through electric field inspection.
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Affiliation(s)
- Duc-Binh Nguyen
- Department of Materials Science and Engineering, Feng Chia University, Taichung City, 40724, Taiwan
- Institute of Green Products, Feng Chia University, Taichung City, 40724, Taiwan
| | - Vinh-Phuc Ha
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Vinh-Dat Vuong
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Yi-Hsin Chien
- Department of Materials Science and Engineering, Feng Chia University, Taichung City, 40724, Taiwan
| | - Thang Van Le
- Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, 740500, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, 740500, Vietnam
| | - Chen-Yeon Chu
- Institute of Green Products, Feng Chia University, Taichung City, 40724, Taiwan
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3
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Martin GD, Lara B, Bounoukta CE, Domínguez MI, Ammari F, Ivanova S, Centeno MÁ. Glucose Dehydration Reaction Over Metal Halides Supported on Activated Charcoal Catalysts. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Ahn SI. A study on signal enhancement of a Raman probe using an optical pickup unit. Heliyon 2022; 8:e10802. [PMID: 36217491 PMCID: PMC9547214 DOI: 10.1016/j.heliyon.2022.e10802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/05/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
A simplified fabrication method for an optical pickup unit (OPU)-based Raman probe was introduced. The use of OPU tracking mode was examined to increase the Raman signal and reduce background signals. Unlike most Raman systems, the tracking mode of the OPU moves the objective lens in the x (or y) direction, thus resulting in a significantly reduced background signal and increased Raman signal intensity. These results can be explained by two factors, such as reducing the surface scattering of the incident light from the objective lens and decreasing signal blocking by a dot mirror, which depends on the horizontal position of the objective lens. The reproducibility of the OPU Raman in tracking mode is higher than the OPU Raman in normal mode. The peak position deviation was calculated to be around ±3 cm−1. The Raman spectra of normal organic samples were obtained under the same conditions and recorded as per the applied voltage in the OPU tracking mode to validate the fabricated device. The objective lens shifts resulted in increased Raman peaks and reduced background signals. The maximum peak-position difference for all samples was 10 cm−1 compared to reference peaks obtained using a commercial Raman system.
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Affiliation(s)
- Sung Il Ahn
- Department of Chemistry Education, Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Pusan National University, Busandaehakro 63-2, Busan 46241, Republic of Korea
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5
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Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abdullah TA, Juzsakova T, Le PC, Kułacz K, Salman AD, Rasheed RT, Mallah MA, Varga B, Mansoor H, Mako E, Zsirka B, Nadda AK, Nguyen XC, Nguyen DD. Poly-NIPAM/Fe 3O 4/multiwalled carbon nanotube nanocomposites for kerosene removal from water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 306:119372. [PMID: 35533957 DOI: 10.1016/j.envpol.2022.119372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/31/2022] [Accepted: 04/25/2022] [Indexed: 06/14/2023]
Abstract
Multiwalled carbon nanotubes (MWCNTs) were oxidized using a mixture of H2SO4 and HNO3, and the oxidized MWCNTS were decorated with magnetite (Fe3O4). Finally, poly-N-isopropyl acrylamide-co-butyl acrylate (P-NIPAM) was added to obtain P-NIPAM/Fe/MWCNT nanocomposites. The nanosorbents were characterized by various techniques, including X-ray diffraction, transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, and Brunauer-Emmett-Teller analysis. The P-NIPAM/Fe/MWCNT nanocomposites exhibited increased surface hydrophobicity. Owing to their higher adsorption capacity, their kerosene removal efficiency was 95%; by contrast, the as-prepared, oxidized, and magnetite-decorated MWCNTs had removal efficiencies of 45%, 55%, and 68%, respectively. The P-NIPAM/Fe/MWCNT nanocomposites exhibited a sorbent capacity of 8.1 g/g for kerosene removal from water. The highest kerosene removal efficiency from water was obtained at a process time of 45 min, sorbent dose of 0.005 g, solution temperature of 40 °C, and pH 3.5. The P-NIPAM/Fe/MWCNTs showed excellent stability after four cycles of kerosene removal from water followed by regeneration. The reason may be the increase in the positive charge of the polymer at pH 3.5 and the increased adsorption affinity of the adsorbent toward the kerosene contaminant. The pseudo second-order model was found to be the most suitable model for studying the kinetics of the adsorption reaction.
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Affiliation(s)
- Thamer Adnan Abdullah
- Sustainability Solutions Research Lab, Bio-Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, Veszprém, Hungary; Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad, Iraq
| | - Tatjána Juzsakova
- Sustainability Solutions Research Lab, Bio-Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, Veszprém, Hungary
| | - Phuoc-Cuong Le
- The University of Danang-University of Science and Technology, Danang, 550000, Viet Nam
| | - Karol Kułacz
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Ali D Salman
- Sustainability Solutions Research Lab, Bio-Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, Veszprém, Hungary
| | - Rashed T Rasheed
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad, Iraq
| | - Muhammad Ali Mallah
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Bela Varga
- Sustainability Solutions Research Lab, Bio-Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, Veszprém, Hungary
| | - Hadeel Mansoor
- Material Branch, Applied Science Department, University of Technology, Baghdad, Iraq
| | - Eva Mako
- Department of Materials Engineering, Research Center for Engineering Sciences, University of Pannonia, H-8210 Veszprem, POB. 1158, Hungary
| | - Balázs Zsirka
- Research Group of Analytical Chemistry/Laboratory for Surfaces and Nanostructures, University of Pannonia, P.O. Box 158, Veszprem, 8201, Hungary
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, 173 234, India
| | - X Cuong Nguyen
- Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam
| | - D Duc Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, HCM City 755414, Viet Nam; Department of Environmental Energy Engineering, Kyonggi University, Suwon, 442-760, Republic of Korea.
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7
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Baraneedharan P, Vadivel S, C A A, Mohamed SB, Rajendran S. Advances in preparation, mechanism and applications of various carbon materials in environmental applications: A review. CHEMOSPHERE 2022; 300:134596. [PMID: 35436457 DOI: 10.1016/j.chemosphere.2022.134596] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/24/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Carbon-related materials are now widely investigated in a various industrial field due to their excellent and unique qualities. It must be tailored to the application in such a way that it fits the application. At the same time, it needs to be generated in sufficient quantities for commercial use, and the synthesis method is the major sticking point here. Because most new materials are discovered by chance, the synthesis process described here may not be the most effective way to create them. The research is merely a steppingstone to discovering a different approach, and it will continue until the substance is no longer being used. If you're developing materials for any purpose, synthesis processes are essential. Fullerene, carbon nanotubes (CNT), graphene, and MXene are only a few of the carbon-based compounds discussed in this overview study, which also gives a brief prognosis on the materials future. Furthermore, the environmental application of these carbon materials was discussed and commented.
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Affiliation(s)
- P Baraneedharan
- Centre for Micro Nano Design and Fabrication, Department of Electronics and Communication Engineering, Saveetha Engineering College, Thandalam, Chennai, 602 105, India
| | - Sethumathavan Vadivel
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India.
| | - Anil C A
- Department of Material Science, Central University of Tamilnadu, Thiruvarur, 610005, India
| | - S Beer Mohamed
- Department of Material Science, Central University of Tamilnadu, Thiruvarur, 610005, India.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
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8
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Chernyak S, Rodin V, Novotortsev R, Kaplin I, Maslakov K, Savilov S. Family of biomass-derived Ni and Ni–Mn catalysts of CO2 methanation. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Tian X, Huang H, Zhang H, Yan Y. Preparation of structured N-CNTs/PSSF composite catalyst to activate peroxymonosulfate for phenol degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Basa A, Gajko E, Goclon J, Wilczewska AZ, Winkler K. Amorphous and Crystalline Vanadium Orthophosphate and Oxidized Multiwalled Carbon Nanotube Composites as Anode Materials in Sodium‐Ion Batteries. ChemElectroChem 2022. [DOI: 10.1002/celc.202200174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Anna Basa
- Department of Chemistry University of Bialystok Ciolkowskiego 1 K 15-245 Bialystok Poland
| | - Ewelina Gajko
- Department of Chemistry University of Bialystok Ciolkowskiego 1 K 15-245 Bialystok Poland
| | - Jakub Goclon
- Department of Chemistry University of Bialystok Ciolkowskiego 1 K 15-245 Bialystok Poland
| | | | - Krzysztof Winkler
- Department of Chemistry University of Bialystok Ciolkowskiego 1 K 15-245 Bialystok Poland
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11
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Nan H, Luo F, Jia H, Deng H, Qing Y, Huang Z, Wang C, Chen Q. Balancing Between Polarization and Conduction Loss toward Strong Electromagnetic Wave Absorption of Hard Carbon Particles with Morphology Heterogeneity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19836-19846. [PMID: 35465665 DOI: 10.1021/acsami.2c01171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The heterostructure and hierarchical morphology of carbonaceous absorbents play an important role in the construction of high-performance electromagnetic wave absorbing materials. Herein, novel micron-scale hard carbon particles with morphology heterogeneity were developed as lightweight superior electromagnetic wave absorbents via a facile and ecofriendly process. The as-prepared hard carbon particle composed of pseudographite and a highly disordered region shows a unique heterostructure. Concurrently, constructing a multilevel geometric shape and size can cause a decrease of the percolation threshold and an excellent balance between polarization and conduction loss, which enhances the electromagnetic wave absorption significantly. The composites (thickness d = 2.36 mm) filled with morphology-heterogeneity hard carbon particles (15 wt %) achieve an excellent electromagnetic wave absorption with a minimum reflection loss of -78.0 dB at 10.2 GHz and effective absorption bandwidth (<-10 dB) of 3.1 GHz (8.8-11.9 GHz). Compared to the traditional carbonaceous absorbents with complex microstructures and/or multiple chemical components, this work presents a feasible idea for the development of an efficient carbonaceous absorbent to realize practical applications.
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Affiliation(s)
- Hanyi Nan
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fa Luo
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Hongyao Jia
- School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
| | - Hongwei Deng
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
- AECC Shenyang Engine Research Institute, 110015 Shenyang, China
| | - Yuchang Qing
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Zhibin Huang
- Shaanxi Huaqin Technology Industry Co., Ltd., Xi'an 710119, China
| | - Chunhai Wang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qiang Chen
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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12
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Optimization of carbon nanotube growth via response surface methodology for Fischer-Tropsch synthesis over Fe/CNT catalyst. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Wang Y, Li L, Cui C, Da. Costa P, Hu C. The effect of adsorbed oxygen species on carbon-resistance of Ni-Zr catalyst modified by Al and Mn for dry reforming of methane. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Li S, Shu Y, Lin YA, Zhao Y, Yeh YJ, Chiang WH, Loh KJ. Distributed Strain Monitoring Using Nanocomposite Paint Sensing Meshes. SENSORS (BASEL, SWITZERLAND) 2022; 22:812. [PMID: 35161558 PMCID: PMC8838933 DOI: 10.3390/s22030812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Strain measurements are vital for monitoring the load-bearing capacity and safety of structures. A common approach is to affix strain gages onto structural surfaces. On the other hand, most aerospace, automotive, civil, and mechanical structures are painted and coated, often with many layers, prior to their deployment. There is an opportunity to design smart and multifunctional paints that can be directly pre-applied onto structural surfaces to serve as a sensing layer among their other layers of functional paints. Therefore, the objective of this study was to design a strain-sensitive paint that can be used for structural monitoring. Carbon nanotubes (CNT) were dispersed in paint by high-speed shear mixing, while paint thinner was employed for adjusting the formulation's viscosity and nanomaterial concentration. The study started with the design and fabrication of the CNT-based paint. Then, the nanocomposite paint's electromechanical properties and its sensitivity to applied strains were characterized. Third, the nanocomposite paint was spray-coated onto patterned substrates to form "Sensing Meshes" for distributed strain monitoring. An electrical resistance tomography (ERT) measurement strategy and algorithm were utilized for reconstructing the conductivity distribution of the Sensing Meshes, where the magnitude of conductivity (or resistivity) corresponded to the magnitude of strain, while strain directionality was determined based on the strut direction in the mesh.
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Affiliation(s)
- Sijia Li
- Department of Structural Engineering, University of California San Diego, La Jolla, San Diego, CA 92093-0085, USA; (S.L.); (Y.S.); (Y.-A.L.); (Y.Z.)
- Active, Responsive, Multifunctional, and Ordered-Materials Research (ARMOR) Laboratory, La Jolla, San Diego, CA 92093-0085, USA
| | - Yening Shu
- Department of Structural Engineering, University of California San Diego, La Jolla, San Diego, CA 92093-0085, USA; (S.L.); (Y.S.); (Y.-A.L.); (Y.Z.)
- Active, Responsive, Multifunctional, and Ordered-Materials Research (ARMOR) Laboratory, La Jolla, San Diego, CA 92093-0085, USA
| | - Yun-An Lin
- Department of Structural Engineering, University of California San Diego, La Jolla, San Diego, CA 92093-0085, USA; (S.L.); (Y.S.); (Y.-A.L.); (Y.Z.)
- Active, Responsive, Multifunctional, and Ordered-Materials Research (ARMOR) Laboratory, La Jolla, San Diego, CA 92093-0085, USA
| | - Yingjun Zhao
- Department of Structural Engineering, University of California San Diego, La Jolla, San Diego, CA 92093-0085, USA; (S.L.); (Y.S.); (Y.-A.L.); (Y.Z.)
- Active, Responsive, Multifunctional, and Ordered-Materials Research (ARMOR) Laboratory, La Jolla, San Diego, CA 92093-0085, USA
| | - Yi-Jui Yeh
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei City 106, Taiwan; (Y.-J.Y.); (W.-H.C.)
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei City 106, Taiwan; (Y.-J.Y.); (W.-H.C.)
| | - Kenneth J. Loh
- Department of Structural Engineering, University of California San Diego, La Jolla, San Diego, CA 92093-0085, USA; (S.L.); (Y.S.); (Y.-A.L.); (Y.Z.)
- Active, Responsive, Multifunctional, and Ordered-Materials Research (ARMOR) Laboratory, La Jolla, San Diego, CA 92093-0085, USA
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Abdullah TA, Juzsakova T, Rasheed RT, Mallah MA, Salman AD, Cuong LP, Jakab M, Zsirka B, Kułacz K, Sebestyén V. V 2O 5, CeO 2 and Their MWCNTs Nanocomposites Modified for the Removal of Kerosene from Water. NANOMATERIALS 2022; 12:nano12020189. [PMID: 35055208 PMCID: PMC8778115 DOI: 10.3390/nano12020189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023]
Abstract
In this paper, the application of multiwalled carbon nanotubes (MWCNTs) based on metal oxide nanocomposites as adsorbents for the removal of hydrocarbons such as kerosene from water was investigated. Functionalized MWCNTs were obtained by chemical oxidation using concentrated sulfuric and nitric acids. V2O5, CeO2, and V2O5:CeO2 nanocomposites were prepared using the hydrothermal method followed by deposition of these oxides over MWCNTs. Individual and mixed metal oxides, fresh MWCNTs, and metal oxide nanoparticle-doped MWCNTs using different analysis techniques were characterized. XRD, TEM, SEM, EDX, AFM, Raman, TG/DTA, and BET techniques were used to determine the structure as well as chemical and morphological properties of the newly prepared adsorbents. Fresh MWCNTs, Ce/MWCNTs, V/MWCNTs, and V:Ce/MWCNTs were applied for the removal of kerosene from a model solution of water. GC analysis indicated that high kerosene removal efficiency (85%) and adsorption capacity (4270 mg/g) after 60 min of treatment were obtained over V:Ce/MWCNTs in comparison with fresh MWCNTs, Ce/MWCNTs and V/MWCNTs. The kinetic data were analyzed using the pseudo-first order, pseudo-second order, and intra-particle diffusion rate equations.
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Affiliation(s)
- Thamer Adnan Abdullah
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad P.O. Box 19006, Iraq;
- Correspondence:
| | - Tatjána Juzsakova
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
| | - Rashed Taleb Rasheed
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad P.O. Box 19006, Iraq;
| | - Muhammad Ali Mallah
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan;
| | - Ali Dawood Salman
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
- Department of Chemical and Petroleum Refining Engineering, College of Oil and Gas Engineering, Basra University, Basra P.O. Box 61004, Iraq
| | - Le Phuoc Cuong
- Department of Environmental Management, Faculty of Environment, The University of Danang—University of Science and Technology, Danang 550000, Vietnam;
| | - Miklós Jakab
- Engineering Research and Development Centre, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary;
| | - Balázs Zsirka
- Research Group of Analytical Chemistry, Laboratory for Surfaces and Nanostructures, Center for Natural Sciences, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary;
| | - Karol Kułacz
- Faculty of Chemistry, University of Wroclaw, F. Joliot-Curie 14, 50-383 Wrocław, Poland;
| | - Viktor Sebestyén
- Sustainability Solutions Research Lab, Bio-, Environmental and Chemical Engineering Research and Development Center, Faculty of Engineering, University of Pannonia, P.O. Box 158, H-8201 Veszprem, Hungary; (T.J.); (A.D.S.); (V.S.)
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16
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Abdullah TA, Juzsakova T, Mansoor H, Salman AD, Rasheed RT, Hafad SA, Mallah MA, Domokos E, Cuong NX, Nadda AK, Chang SW, Le PC, Nguyen DD. Polyethylene over magnetite-multiwalled carbon nanotubes for kerosene removal from water. CHEMOSPHERE 2022; 287:132310. [PMID: 34826948 DOI: 10.1016/j.chemosphere.2021.132310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/24/2021] [Accepted: 09/18/2021] [Indexed: 06/13/2023]
Abstract
In this study, a nano-adsorbent was prepared for kerosene removal from water. Multiwalled carbon nanotubes (MWCNTs) were functionalized with concentrated HNO3 (nitric acid). Subsequently, Fe3O4 (magnetite) nanoparticles were deposited on the MWCNTs to prepare a magnetite/MWCNTs (Fe-MWCNTs) nanocomposite. Then, polyethylene was added to the Fe-MWCNTs to fabricate a polyethylene/magnetite/MWCNTs (PE/Fe-MWCNTs) novel nanocomposite. The nano-adsorbent was characterized using BET, FTIR, Raman, XRD, TEM, and SEM. A kerosene-water model mixture was used for adsorption tests. Several parameters: adsorption time, adsorbent dose, solution pH, solution temperature, and kerosene concentration in the kerosene-water model mixture, were analyzed during adsorption experiments. After each batch experiment, kerosene concentration was determined using high-performance liquid chromatography (HPLC). Magnetic field was used to remove the adsorbent after each experiment. The kerosene adsorption capacity and removal efficiency of the PE/Fe-MWCNTs nanocomposite (3560 mg/g and 71.2 %, respectively) were higher than those of Fe-MWCNTs, ox-MWCNTs, and fresh MWCNTs (3154 mg/g and 63.1 %, 2204 mg/g and 44.0 %, and 2092 mg/g and 41.8 %, respectively). Kerosene adsorption followed a pseudo-second-order kinetic model (R2 = 0.999) and the Langmuir isotherm model, suggesting that adsorption was uniform and homogenous process.
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Affiliation(s)
- Thamer Adnan Abdullah
- Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprém, Hungary; Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad, Iraq
| | - Tatjana Juzsakova
- Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprém, Hungary
| | - Hadeel Mansoor
- Material Branch, Applied Sciences Department, University of Technology, Baghdad, Iraq
| | - Ali Dawood Salman
- Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprém, Hungary; Department of Chemical and Petroleum Refining Engineering /College of Oil and Gas Engineering Basra University, Baghdad, Iraq
| | - Rashed Taleb Rasheed
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad, Iraq
| | - Sana Abdulhadi Hafad
- Department of Chemical and Petroleum Refining Engineering /College of Oil and Gas Engineering Basra University, Baghdad, Iraq
| | - Muhammad Ali Mallah
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Endre Domokos
- Sustainability Solutions Research Lab, University of Pannonia, Egyetem str. 10, H-8200 Veszprém, Hungary
| | - Nguyen Xuan Cuong
- Laboratory of Energy and Environmental Science, Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang 550000, Vietnam
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, 173 234, India
| | - S Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, Suwon, 442-760, Republic of Korea
| | - Phuoc-Cuong Le
- The University of Danang-University of Science and Technology, 54 Nguyen Luong Bang, Danang, 550000, Vietnam.
| | - D Duc Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Vietnam; Department of Environmental Energy Engineering, Kyonggi University, Suwon, 442-760, Republic of Korea.
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Duarte MP, Silva RCF, Medeiros TPVD, Ardisson JD, Cotta AAC, Naccache R, Teixeira APDC. Carbon nanotubes derived from waste cooking oil for the removal of emerging contaminants. NEW J CHEM 2022. [DOI: 10.1039/d2nj01669a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multi-walled carbon nanotube (MWCNT) were synthesized using ethyl acetate and waste cooking oil as more green and sustainable carbon sources, and further successfully applied for the adsorption of norfloxacin and 17α-ethinylestradiol.
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Affiliation(s)
- Michelle Pains Duarte
- Departamento de Química, ICEx, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, MG, 31270-901, Brazil
| | | | - Tayline P. Viana de Medeiros
- Department of Chemistry and Biochemistry and the Centre for NanoScience Research, Concordia University, Montreal, QC, H4B 1R6, Canada
- Quebec Centre for Advanced Materials, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - José Domingos Ardisson
- Centro de Desenvolvimento em Tecnologia Nuclear, CDTN, Belo Horizonte, MG, 31270-901, Brazil
| | | | - Rafik Naccache
- Department of Chemistry and Biochemistry and the Centre for NanoScience Research, Concordia University, Montreal, QC, H4B 1R6, Canada
- Quebec Centre for Advanced Materials, Concordia University, Montreal, QC, H4B 1R6, Canada
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Green and Highly-Efficient Microwave Synthesis Route for Sulfur/Carbon Composite for Li-S Battery. Int J Mol Sci 2021; 23:ijms23010039. [PMID: 35008462 PMCID: PMC8744887 DOI: 10.3390/ijms23010039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/16/2021] [Accepted: 12/19/2021] [Indexed: 12/02/2022] Open
Abstract
Multiporous carbons (MPCs) are prepared using ZnO as a hard template and biomass pyrolysis oil as the carbon source. It is shown that the surface area, pore volume, and mesopore/micropore ratio of the as-prepared MPCs can be easily controlled by adjusting the ZnO/oil ratio. Sulfur/MPC (S/MPC) composite is prepared by blending sulfur powder with the as-prepared MPCs followed by microwave heating at three different powers (100 W/200 W/300 W) for 60 s. The unique micro/mesostructure characteristics of the resulting porous carbons not only endow the S/MPC composite with sufficient available space for sulfur storage, but also provide favorable and efficient channels for Li-ions/electrons transportation. When applied as the electrode material in a lithium-ion battery (LIB), the S/MPC composite shows a reversible capacity (about 500 mAh g−1) and a high columbic efficiency (>95%) after 70 cycles. Overall, the method proposed in this study provides a simple and green approach for the rapid production of MPCs and S/MPC composite for high-performance LIBs.
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19
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Kumar V, Alam MN, Manikkavel A, Song M, Lee DJ, Park SS. Silicone Rubber Composites Reinforced by Carbon Nanofillers and Their Hybrids for Various Applications: A Review. Polymers (Basel) 2021; 13:polym13142322. [PMID: 34301079 PMCID: PMC8309633 DOI: 10.3390/polym13142322] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/07/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023] Open
Abstract
Without fillers, rubber types such as silicone rubber exhibit poor mechanical, thermal, and electrical properties. Carbon black (CB) is traditionally used as a filler in the rubber matrix to improve its properties, but a high content (nearly 60 per hundred parts of rubber (phr)) is required. However, this high content of CB often alters the viscoelastic properties of the rubber composite. Thus, nowadays, nanofillers such as graphene (GE) and carbon nanotubes (CNTs) are used, which provide significant improvements to the properties of composites at as low as 2–3 phr. Nanofillers are classified as those fillers consisting of at least one dimension below 100 nanometers (nm). In the present review paper, nanofillers based on carbon nanomaterials such as GE, CNT, and CB are explored in terms of how they improve the properties of rubber composites. These nanofillers can significantly improve the properties of silicone rubber (SR) nanocomposites and have been useful for a wide range of applications, such as strain sensing. Therefore, carbon-nanofiller-reinforced SRs are reviewed here, along with advancements in this research area. The microstructures, defect densities, and crystal structures of different carbon nanofillers for SR nanocomposites are characterized, and their processing and dispersion are described. The dispersion of the rubber composites was reported through atomic force microscopy (AFM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The effect of these nanofillers on the mechanical (compressive modulus, tensile strength, fracture strain, Young’s modulus, glass transition), thermal (thermal conductivity), and electrical properties (electrical conductivity) of SR nanocomposites is also discussed. Finally, the application of the improved SR nanocomposites as strain sensors according to their filler structure and concentration is discussed. This detailed review clearly shows the dependency of SR nanocomposite properties on the characteristics of the carbon nanofillers.
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Affiliation(s)
- Vineet Kumar
- School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea; (V.K.); (M.N.A.); (A.M.); (D.-J.L.)
| | - Md Najib Alam
- School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea; (V.K.); (M.N.A.); (A.M.); (D.-J.L.)
| | - Amutheesan Manikkavel
- School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea; (V.K.); (M.N.A.); (A.M.); (D.-J.L.)
| | - Minseok Song
- Graduate School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea;
| | - Dong-Joo Lee
- School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea; (V.K.); (M.N.A.); (A.M.); (D.-J.L.)
| | - Sang-Shin Park
- School of Mechanical Engineering, Yeungnam University, 280, Daehak-ro, Gyeongsan 38541, Korea; (V.K.); (M.N.A.); (A.M.); (D.-J.L.)
- Correspondence:
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20
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Suslova EV, Epishev VV, Maksimov SV, Maslakov KI, Isaikina OY, Savilov SV. Gas-Phase Oxidation of Spark Plasma Sintered Products of Covalently Crosslinked Carbon Nanotubes. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421070256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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One-Step Construction of Multi-Walled CNTs Loaded with Alpha-Fe 2O 3 Nanoparticles for Efficient Photocatalytic Properties. MATERIALS 2021; 14:ma14112820. [PMID: 34070510 PMCID: PMC8199084 DOI: 10.3390/ma14112820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022]
Abstract
The aggregation and the rapid restructuring of the photoinduced electron−hole pairs restructuring in the process of photoelectric response remains a great challenge. In this study, a kind of Multi-walled carbon nanotubes loaded Alpha-Fe2O3 (CNTs/α-Fe2O3) heterostructure composite is successfully prepared via the one-step method. Due to the synergistic effect in the as-prepared CNTs/α-Fe2O3, the defect sites and oxygen-containing functional groups of CNTs can dramatically improve the interface charge separation efficiency and prevent the aggregation of α-Fe2O3. The improved photocurrent and enhanced hole–electron separation rate in the CNTs/α-Fe2O3 is obtained, and the narrower band gap is measured to be 2.8 ev with intensive visible-light absorption performance. Thus, the CNTs/α-Fe2O3 composite serves as an excellent visible light photocatalyst and exhibits an outstanding photocatalytic activity for the cationic dye degradation of rhodamine B (RhB). This research supplies a fresh application area forα-Fe2O3 photocatalyst and initiates a new approach for design of high efficiency photocatalytic materials.
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22
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Chernyak SA, Stolbov DN, Maslakov KI, Maksimov SV, Isaikina OY, Savilov SV. Effect of Synthesis Conditions on Morphology, Structure, and Defectiveness of Few-Layer Graphene Nanoflakes. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421030109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Li S, Wen F, Sun C, Wang Z, Chen R, He Q, Mu J. A comparative study on the influences of whisker and conventional carbon nanotubes on the electrical and thermal conductivity of polyether ether ketone composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.50720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Shu Li
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
| | - Fengyu Wen
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
| | - Cong Sun
- Gas Chromatography‐Mass Spectrometry Laboratory Central Laboratory of Changchun Water [Group] Co., Ltd Changchun China
| | - Zhenyang Wang
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
| | - Rui Chen
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
| | - Qingxia He
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
| | - Jianxin Mu
- College of Chemistry, Engineering Research Center of High Performance Plastics, Ministry of Education Jilin University Changchun China
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24
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Faid AY, Barnett AO, Seland F, Sunde S. NiCu mixed metal oxide catalyst for alkaline hydrogen evolution in anion exchange membrane water electrolysis. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.137837] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Kim HE, Shin S, Lee H. Pt-IrOx catalysts immobilized on defective carbon for efficient reversal tolerant anode in proton exchange membrane fuel cells. J Catal 2021. [DOI: 10.1016/j.jcat.2021.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Savilov S, Suslova E, Epishev V, Tveritinova E, Zhitnev Y, Ulyanov A, Maslakov K, Isaikina O. Conversion of Secondary C3-C4 Aliphatic Alcohols on Carbon Nanotubes Consolidated by Spark Plasma Sintering. NANOMATERIALS 2021; 11:nano11020352. [PMID: 33535440 PMCID: PMC7912505 DOI: 10.3390/nano11020352] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 12/02/2022]
Abstract
We analyze how the changes in the dimension of carbon nanomaterial (CNM) affect their catalytic conversion of secondary aliphatic alcohols. Carbon nanotubes (CNTs) consolidated by spark plasma sintering (SPS) were inactive in the conversion of secondary C3-C4 aliphatic alcohols because of the «healing» of defects in carbon structure during SPS. Gas-phase treatment of consolidated CNTs with HNO3 vapors led to their surface oxidation without destruction of the bulk structure of pellets. The oxygen content in consolidated CNTs determined by X-ray photoelectron spectroscopy increased from 11.3 to 14.9 at. % with increasing the oxidation time from 3 to 6 h. Despite the decrease in the specific surface area, the oxidized samples showed enhanced catalytic activity in alcohol conversion because of the increased number of oxygen radicals with unpaired electrons, which was established by electron paramagnetic resonance spectroscopy. We conclude that the structure of CNM determines the content and/or ratio of sp2 and sp3-hybridized carbon atoms in the material. The experimental and literature data demonstrated that sp3-hybridized carbon atoms on the surface are probably the preferable site for catalytic conversion of alcohols.
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Affiliation(s)
- Serguei Savilov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospekt, 29, 119991 Moscow, Russia
| | - Evgeniya Suslova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
- Correspondence:
| | - Vsevolod Epishev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
| | - Evgeniya Tveritinova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
| | - Yuriy Zhitnev
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
| | - Alexander Ulyanov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
| | - Konstantin Maslakov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
| | - Oksana Isaikina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia; (S.S.); (V.E.); (E.T.); (Y.Z.); (A.U.); (K.M.); (O.I.)
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Tuning Magnetic Properties of a Carbon Nanotube-Lanthanide Hybrid Molecular Complex through Controlled Functionalization. Molecules 2021; 26:molecules26030563. [PMID: 33498976 PMCID: PMC7866014 DOI: 10.3390/molecules26030563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/01/2021] [Accepted: 01/11/2021] [Indexed: 11/17/2022] Open
Abstract
Molecular magnets attached to carbon nanotubes (CNT) are being studied as potential candidates for developing spintronic and quantum technologies. However, the functionalization routes used to develop these hybrid systems can drastically affect their respective physiochemical properties. Due to the complexity of this systems, little work has been directed at establishing the correlation between the degree of functionalization and the magnetic character. Here, we demonstrate the chemical functionalization degree associated with molecular magnet loading can be utilized for controlled tuning the magnetic properties of a CNT-lanthanide hybrid complex. CNT functionalization degree was evaluated by interpreting minor Raman phonon modes in relation to the controlled reaction conditions. These findings were exploited in attaching a rare-earth-based molecular magnet (Gd-DTPA) to the CNTs. Inductively coupled plasma mass spectrometry, time-of-flight secondary ion mass spectrometry and super conducting quantum interference device (SQUID) measurements were used to elucidate the variation of magnetic character across the samples. This controlled Gd-DTPA loading on the CNT surface has led to a significant change in the nanotube intrinsic diamagnetism, showing antiferromagnetic coupling with increase in the Weiss temperature with respect to increased loading. This indicates that synthesis of a highly correlated spin system for developing novel spintronic technologies can be realized through a carbon-based hybrid material.
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28
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Rocha KDO, Macedo WC, Marques CM, Bueno JM. Pt/Al2O3La2O3 catalysts stable at high temperature in air, prepared using a “one-pot” sol–gel process: Synthesis, characterization, and catalytic activity in the partial oxidation of CH4. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.115966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Effect of type and localization of nitrogen in graphene nanoflake support on structure and catalytic performance of Co-based Fischer-Tropsch catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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30
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Meirinho S, Ferraria A, do Rego AB, Fernandes A, Viana A, Fernandes J, Oliveira M. Electrochemical properties of oxygen-enriched carbon-based nanomaterials. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114420] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Chernyak SA, Ivanov AS, Maksimov SV, Maslakov KI, Isaikina OY, Chernavskii PA, Kazantsev RV, Eliseev OL, Savilov SS. Fischer-Tropsch synthesis over carbon-encapsulated cobalt and iron nanoparticles embedded in 3D-framework of carbon nanotubes. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Fabricating a Raman spectrometer using an optical pickup unit and pulsed power. Sci Rep 2020; 10:11692. [PMID: 32678168 PMCID: PMC7366627 DOI: 10.1038/s41598-020-68650-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/24/2020] [Indexed: 02/06/2023] Open
Abstract
Although Raman spectroscopy is a major analytical tool in modern chemical experiments, commercial Raman spectrometers remain very pricey for educational and research purposes in individual university laboratories. Thus, this study focused on the structural similarity between the Raman spectrometer and an optical pickup unit (OPU), which is an inexpensive compact optical device used for a part of optical discs. The study investigated whether or not a full set of Raman spectrometer can be developed at a cost of less than 1,000 US$. The OPU-based Raman spectrometer was fabricated using 3D printer-made components, a Raman edge filter, and a laser diode with a wavelength of 520 nm as the light source. A function generator was used as a pulsed power source to analyze the characteristics of the OPU Raman spectrometer according to various frequencies and duty ratios. When using a pulsed DC power supply, the laser wavelength tended to move to a longer wavelength with increases in duty ratios. That is, the higher the frequency at the same duty ratio, the weaker the background light intensity compared with the scattered Raman signal intensity. The findings illustrate that Raman signal strength can be adjusted by adjusting the focal length of the objective lens of the OPU through an external adjustment of an additional DC power. In the Raman spectra of all solid and liquid samples used, the maximum error rate reached approximately 11 cm−1, whereas the maximum intensity deviation reached approximately ± 6%. The cost of the complete OPU Raman spectrometer is less than 1,100 US$ using a function generator as power source and less than 930 US$ using a DC adapter. If the optical density (OD) 6 filter can be replaced with the OD 4 filter, then the costs are expected to decrease to approximately 730 US$.
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33
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Naqvi STR, Rasheed T, Hussain D, Najam ul Haq M, Majeed S, shafi S, Ahmed N, Nawaz R. Modification strategies for improving the solubility/dispersion of carbon nanotubes. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111919] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Ghogia AC, Cayez S, Machado BF, Nzihou A, Serp P, Soulantica K, Pham Minh D. Hydrogen Spillover in the Fischer‐Tropsch Synthesis on Carbon‐supported Cobalt Catalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201901934] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Amel C. Ghogia
- Université de Toulouse, IMT Mines Albi, UMR CNRS 5302 Centre RAPSODEE Campus Jarlard 81013 Albi cedex 09 France
- LPCNOUniversité de Toulouse, CNRS, INSA, UPS 135 avenue de Rangueil 31077 Toulouse France
- LCC, CNRS-UPR 8241, ENSIACETUniversité de Toulouse France
| | - Simon Cayez
- LPCNOUniversité de Toulouse, CNRS, INSA, UPS 135 avenue de Rangueil 31077 Toulouse France
| | - Bruno F. Machado
- Laboratory of Separation and Reaction Engineering – Laboratory of Catalysis and Materials (LSRE-LCM) Chemical Engineering Department, Faculty of EngineeringUniversity of Porto Rua Dr. Roberto Frias s/n 4200-465 Porto Portugal
| | - Ange Nzihou
- Université de Toulouse, IMT Mines Albi, UMR CNRS 5302 Centre RAPSODEE Campus Jarlard 81013 Albi cedex 09 France
| | - Philippe Serp
- LCC, CNRS-UPR 8241, ENSIACETUniversité de Toulouse France
| | - Katerina Soulantica
- LPCNOUniversité de Toulouse, CNRS, INSA, UPS 135 avenue de Rangueil 31077 Toulouse France
| | - Doan Pham Minh
- Université de Toulouse, IMT Mines Albi, UMR CNRS 5302 Centre RAPSODEE Campus Jarlard 81013 Albi cedex 09 France
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35
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Zheng L, Kulkarni P. Real-Time Measurement of Airborne Carbon Nanotubes in Workplace Atmospheres. Anal Chem 2019; 91:12713-12723. [PMID: 31502830 DOI: 10.1021/acs.analchem.9b02178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
With growing applications of carbon nanomaterials, there is a concern over health risks presented by inhalation of carbon nanotube (CNT) aerosol in workplace atmospheres. Current methods used for CNT aerosol measurement lack selectivity to specific form of carbonaceous component or allotrope of interest. Moreover, the detection limits of these methods are also inadequate for short-term monitoring. Here, we describe, for the first time, a near real-time, field-portable instrument for selective quantification of airborne CNT concentration. The approach uses an automated cyclical scheme involving collect-analyze-ablate steps to obtain continuous near real-time measurement using Raman spectroscopy. The method achieves significantly lower detection limits by employing corona-assisted particle microconcentration for efficient coupling with laser Raman spectroscopy. A combination of techniques involving (i) use of characteristic Raman peaks, (ii) distinct ratio of disordered and graphitic peaks, and (iii) principal component classification and regression is employed to identify and quantify the specific form of the aerosolized carbonaceous nanomaterial. We show that the approach is capable of selectively quantifying trace single-walled CNT in the presence of interfering agents such as diesel particulate matter. The detection limit of the method for the single-walled CNT studied in this work was 60 ng m-3, corresponding to a 10 min aerosol collection period, which is significantly lower than that for the NIOSH Method 5040 (∼0.15 μg m-3 for an 8-h collection on a 25 mm filter at 4 L min-1), a commonly used method for elemental carbon. We demonstrate the automated real-time capability of this field-portable method by continuously measuring a transient single-walled CNT aerosol.
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Affiliation(s)
- Lina Zheng
- Centers for Disease Control and Prevention , National Institute for Occupational Safety and Health , Cincinnati , Ohio 45226 , United States
| | - Pramod Kulkarni
- Centers for Disease Control and Prevention , National Institute for Occupational Safety and Health , Cincinnati , Ohio 45226 , United States
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Song J, Li X, Tian K, Ma L, Li W, Yao S. Thermal conductivity of natural rubber nanocomposites with hybrid fillers. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.09.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Meirinho S, Ferraria A, Botelho do Rego A, Fernandes A, Viana A, Oliveira M. Electrogenerated hydrophilic carbon nanomaterials with tailored electrocatalytic activity. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Veloso AD, Ferraria AM, Botelho do Rego AM, Tavares PB, Valentão P, Pereira DD, Andrade PB, Fernandes AJ, Oliveira MC, Videira RA. Hydrophilic Carbon Nanomaterials: Characterisation by Physical, Chemical, and Biological Assays. ChemMedChem 2019; 14:699-711. [DOI: 10.1002/cmdc.201900003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 01/29/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Andreia D. Veloso
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Ana M. Ferraria
- Centro de Química-Física Molecular and IN and IBBInstituto Superior TécnicoUniversidade de Lisboa 1049-001 Lisboa Portugal
| | - Ana M. Botelho do Rego
- Centro de Química-Física Molecular and IN and IBBInstituto Superior TécnicoUniversidade de Lisboa 1049-001 Lisboa Portugal
| | - Pedro B. Tavares
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - David D. Pereira
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - Paula B. Andrade
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
| | - António J. Fernandes
- I3N and Physics DepartmentUniversity of Aveiro Campus de Santiago 3810-193 Aveiro Portugal
| | - Maria C. Oliveira
- CQ-VR and Chemistry DepartmentUniversity of Trás-os-Montes e Alto Douro 5000-801 Vila Real Portugal
| | - Romeu A. Videira
- REQUIMTE/LAQV, Laboratório de FarmacognosiaDepartamento de Química, Faculdade de FarmáciaUniversidade do Porto 4050-313 Porto Portugal
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Lokteva ES, Golubina EV. Metal-support interactions in the design of heterogeneous catalysts for redox processes. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-0715] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The effect of the metal-support interaction (MSI) has been discussed for several types of catalytic systems comprising metal nanoparticles (Ni, Pd, Au, Fe) on oxide and carbon supports, showing promising catalytic properties in hydrogenation of unsaturated C–C bonds, hydrodechlorination (HDC) of chlorinated organic molecules and CO total oxidation. The MSI of a different strength, from the redistribution of the electron density of nanoparticles (NPs) to the chemical interactions, is determined by the composition of the support and the active site, the method of active metal deposition, calcination temperature, particle size etc. The types of MSI considered in this review include: (1) the interaction of the active metal (Me) NPs with alumina and modified zirconia to form several oxidation states of Me in the composition of surface or bulk chemical compounds with a support; (2) the influence of oxide (alumina, silica) or carbon (highly oriented pyrolytic graphite, Sibunit) supports on the formation of active sites in the catalysts with ultra-low Me loading prepared by deposition of pre-formed metal NPs produced by laser electrodispersion (LED) or as colloidal dispersion; (3) the anchoring of Me NPs on the surface of carbon supports (nanodiamonds and carbon nanotubes) directly with a support surface, e.g. through surface defects, or through surface functional groups; (4) ‘reverse’ MSI in the Me@C composites, consisting of metal NPs, covered with the defected graphene layers or immersed into carbon matrix. It is demonstrated on the example of LED systems, that oxidation of metal under MSI is less significant in carbon-supported systems than in oxide-supported ones, but charge effects can play a noticeable role for both types of supports. Different ways of MSI tuning provide the possibilities to achieve the optimal Men+/Me0 ratio in the catalysts for HDC of mono- and polychlorinated organic molecules, including persistent organic pollutants. One of these ways is tuning the composition of functional groups on the surface of nanodiamonds and carbon nanotubes by additional treatments to achieve the desirable metal anchoring, the optimal metal NPs size and the improved catalytic properties. Unusual type of MSI is represented by the activation of thin graphene shell of Me@C composites by the presence of defects in the shell and a transition metal (Ni, Fe) in subsurface layer. This effect allows H2 activation that is a significant step in many industrially important reactions. The selectivity and activity of such systems can be intentionally changed by varying the nature of metal and reaction temperature. Significant attention has been given in the review to the novel catalytic systems described in the previous works of the authors.
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Affiliation(s)
| | - Elena V. Golubina
- Lomonosov Moscow State University , Department of Chemistry , Moscow , Russia
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Rathod V, Tripathi R, Joshi P, Jha PK, Bahadur P, Tiwari S. Paclitaxel Encapsulation into Dual-Functionalized Multi-Walled Carbon Nanotubes. AAPS PharmSciTech 2019; 20:51. [PMID: 30617845 DOI: 10.1208/s12249-018-1218-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/08/2018] [Indexed: 01/31/2023] Open
Abstract
This work reports the synthesis of multi-walled carbon nanotubes (CNTs) from xylene/ferrocene using catalytic chemical vapor deposition technique. Following characterization using transmission electron microscopy (TEM), energy-dispersive X-ray (EDX), and Raman spectroscopy, CNT surface was dual-functionalized using ethylenediamine and phenylboronic acid groups. Average diameter of CNTs was calculated to be 16.5 nm. EDX spectra confirmed the existence of carbonaceous deposits on the tube's surface. Scattered electron diffraction and X-ray peak broadening calculations showed consistent inter-planer distance of the grown CNTs. Chemical functionalization, confirmed from FT-IR and Raman spectra, showed an enhanced dispersibility of CNTs in water. We describe the changes in the first- and second-order regions of the Raman spectra following the encapsulation of an anti-cancer drug, paclitaxel (PLX), into the free volume of functionalized CNTs. High PLX loading, achieved through its non-covalent π-π stacking within the CNT interior, is confirmed through the blue-shifted, softened G band in the Raman spectrum. While not addressed here, we will exploit this dual functionalization tactic to elaborate the relative role of attached moieties in the affinity interaction of CNTs with extra-cellular sialic acid, a biological target showing metastatic stage-dependent over-expression in colon cancer cells.
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Chernyak SA, Strokova NE, Fedorova ES, Ivanov AS, Maslakov KI, Savilov SV, Lunin VV. Adsorption of water and n-hexane on pristine and oxidized carbon nanotube supports of cobalt-based Fischer–Tropsch catalysts. Phys Chem Chem Phys 2019; 21:13234-13240. [DOI: 10.1039/c9cp01287g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Adsorption of water and n-hexane by oxidized and pristine CNTs at different stages of Co/CNT catalyst preparation has been studied to reveal the effect of the support surface functionalization on the catalyst selectivity in Fischer–Tropsch synthesis.
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Affiliation(s)
| | | | | | - Anton S. Ivanov
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
| | | | | | - Valery V. Lunin
- Department of Chemistry
- Lomonosov Moscow State University
- Moscow
- Russia
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42
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Mehrabi N, Masud A, Afolabi M, Hwang J, Calderon Ortiz GA, Aich N. Magnetic graphene oxide-nano zero valent iron (GO–nZVI) nanohybrids synthesized using biocompatible cross-linkers for methylene blue removal. RSC Adv 2019; 9:963-973. [PMID: 35517581 PMCID: PMC9059533 DOI: 10.1039/c8ra08386j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 12/21/2018] [Indexed: 11/21/2022] Open
Abstract
A green synthesis method was used to prepare GO–nZVI nanohybrids to provide an adsorbent with high adsorption efficiency that can be removed from aqueous solutions easily by magnetic separation.
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Affiliation(s)
- Novin Mehrabi
- Department of Civil
- Structural and Environmental Engineering
- University at Buffalo
- The State University of New York
- Buffalo
| | - Arvid Masud
- Department of Civil
- Structural and Environmental Engineering
- University at Buffalo
- The State University of New York
- Buffalo
| | - Moyosore Afolabi
- School of Civil and Environmental Engineering
- Georgia Institute of Technology
- Atlanta
- USA
| | - Jinwoo Hwang
- Department of Materials Science and Engineering
- Center for Electron Microscopy and Analysis
- The Ohio State University
- Columbus
- USA
| | - Gabriel A. Calderon Ortiz
- Department of Materials Science and Engineering
- Center for Electron Microscopy and Analysis
- The Ohio State University
- Columbus
- USA
| | - Nirupam Aich
- Department of Civil
- Structural and Environmental Engineering
- University at Buffalo
- The State University of New York
- Buffalo
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43
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Chernyak SA, Ivanov AS, Podgornova AM, Arkhipova EA, Kupreenko SY, Shumyantsev AV, Strokova NE, Maslakov KI, Savilov SV, Lunin VV. Kinetics of the defunctionalization of oxidized few-layer graphene nanoflakes. Phys Chem Chem Phys 2018; 20:24117-24122. [PMID: 30204182 DOI: 10.1039/c8cp05149f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal defunctionalization of oxidized jellyfish-like few-layer graphene nanoflakes was studied under non-isothermal conditions by simultaneous thermal analysis. Activation energies for thermal decomposition of different oxygen functional groups were calculated by the Kissinger method and compared with those for oxidized carbon nanotubes. Oxygen content in graphene nanoflakes was found to significantly affect the decomposition activation energies of carboxylic and keto/hydroxy acids because of their acceptor properties and strong distortion of the graphene layers at the edges of the nanoflakes. The structure of the carbon material and the oxygen chemical state significantly influence the decomposition kinetics of thermally stable oxygen-containing groups. The activation energy for thermal decomposition of phenol groups (110-150 kJ mol-1) is close to that for graphene oxide reduction.
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Affiliation(s)
- Sergei A Chernyak
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow, 119991, Russia.
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Almeida DAL, Couto AB, Oishi SS, Ferreira NG. Chemical and electrochemical treatment effects on the morphology, structure, and electrochemical performance of carbon fiber with different graphitization indexes. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4037-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Savilov SV, Chernyak SA, Paslova MS, Ivanov AS, Egorova TB, Maslakov KI, Chernavskii PA, Lu L, Lunin VV. 3D Frameworks with Variable Magnetic and Electrical Features from Sintered Cobalt-Modified Carbon Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20983-20994. [PMID: 29847909 DOI: 10.1021/acsami.8b04367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
3D frameworks of carbon nanotubes (CNTs) uniformly decorated by cobalt oxide or carbon-encapsulated cobalt nanoparticles were obtained by spark plasma sintering for the first time. The influence of the sintering temperature ( TS) and Co content on the morphology, structure, and electrical and magnetic properties of the obtained materials was investigated by Raman spectroscopy, electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and in situ magnetometry. It was shown that application of the SPS technique allowed simultaneous compaction of the material, formation of CNT framework, and Co oxide reduction. The appearance of the carbon shell around 4-10 nm Co particles was observed at TS > 600 °C. At higher TS, the Co particle size increased (up to 300 nm at 1400 °C), whereas the carbon shell ordered and thickened. The formation of large-size few-layers graphene sheets was observed at TS = 1400 °C. Electrical conductivity of the composites was found to be higher than that of sintered pristine CNTs and varied in the range of 500-12 500 Sm/m. Magnetic experiments demonstrated soft magnetization of the samples and the coercivity of 200-300 Oe. Thus, the obtained CNT-based material is simultaneously compact, formable, electroconductive, and ferromagnetic. Its properties can be tuned by variation of the sintering parameters. Synthesized cobalt-modified carbon 3D structures are promising for the application in magnetic separation, catalysis, fuel cells, and electromagnetic shielding.
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Affiliation(s)
- Serguei V Savilov
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
- A. V. Topchiev Institute of Petrochemical Synthesis , Russian Academy of Sciences , Leninsky Prospect 29 , Moscow 119991 , Russia
| | - Sergei A Chernyak
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
| | - Maria S Paslova
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
| | - Anton S Ivanov
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
| | - Tolganay B Egorova
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
| | - Konstantin I Maslakov
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
- A. V. Topchiev Institute of Petrochemical Synthesis , Russian Academy of Sciences , Leninsky Prospect 29 , Moscow 119991 , Russia
| | - Petr A Chernavskii
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
| | - Li Lu
- National University of Singapore , 21 Lower Kent Ridge Road , 119077 , Singapore
| | - Valery V Lunin
- Department of Chemistry , Lomonosov Moscow State University , Leninskie Gory 1-3 , Moscow 119991 , Russia
- A. V. Topchiev Institute of Petrochemical Synthesis , Russian Academy of Sciences , Leninsky Prospect 29 , Moscow 119991 , Russia
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Pinjari S, Kumaravelan MK, Peddy VC, Gandham S, Patruni J, Velluru S, Kumar P. Maximizing the production of hydrogen and carbon nanotubes: Effect of Ni and reaction temperature. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2018; 43:2781-2793. [DOI: 10.1016/j.ijhydene.2017.12.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
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47
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Vieira R, Fernandes A, Oliveira MC. Electrochemical behaviour of electrogenerated hydrophilic carbon nanomaterials. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.10.197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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A Guide to and Review of the Use of Multiwavelength Raman Spectroscopy for Characterizing Defective Aromatic Carbon Solids: from Graphene to Amorphous Carbons. COATINGS 2017. [DOI: 10.3390/coatings7100153] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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49
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Xing Z, Ng YH, Tay SW, Oon RPH, Hong L. Shaping nanofiltration channels in a carbonaceous membrane via controlling the pyrolysis atmosphere. Phys Chem Chem Phys 2017; 19:21426-21435. [DOI: 10.1039/c7cp03973e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Pyrolysis of a comb-like copolymer towards formation of more disordered graphene species and small graphitic domains.
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Affiliation(s)
- Zheng Xing
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Singapore 119260
- Singapore
| | - Yeap Hung Ng
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Singapore 119260
- Singapore
| | - Siok-Wei Tay
- Institute of Materials Research and Engineering
- Agency for Science
- Technology and Research
- A*STAR
- Singapore 117602
| | - Rachel Pek Har Oon
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Singapore 119260
- Singapore
| | - Liang Hong
- Department of Chemical & Biomolecular Engineering
- National University of Singapore
- Singapore 119260
- Singapore
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