1
|
Cho YH, Jin M, Jin H, Han J, Yu S, Li L, Kim YS. Efficient Ionovoltaic Energy Harvesting via Water-Induced p-n Junction in Reduced Graphene Oxide. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404893. [PMID: 39099395 DOI: 10.1002/advs.202404893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/17/2024] [Indexed: 08/06/2024]
Abstract
Water motion-induced energy harvesting has emerged as a prominent means of facilitating renewable electricity from the interaction between nanostructured materials and water over the past decade. Despite the growing interest, comprehension of the intricate solid-liquid interfacial phenomena related to solid state physics remains elusive and serves as a hindrance to enhancing energy harvesting efficiency up to the practical level. Herein, the study introduces the energy harvester by utilizing inversion on the majority charge carrier in graphene materials upon interaction with water molecules. Specifically, various metal electrode configurations are employed on reduced graphene oxide (rGO) to unravel its distinctive charge carriers that experience the inversion in semiconductor type upon water contact, and exploit this characteristic to leverage the efficacy of generated electricity. Through the strategic arrangement of the metal electrodes on rGO membrane, the open-circuit voltage (Voc) and short-circuit current (Isc) have exhibited a remarkable augmentation, reaching 1.05 V and 31.6 µA, respectively. The demonstration of effectively tailoring carrier dynamics via electrode configuration expands the practicality by achieving high power density and elucidating how the water-induced carrier density modulation occurs in 2D nanomaterials.
Collapse
Affiliation(s)
- Yong Hyun Cho
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Minho Jin
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Huding Jin
- Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Chemical & Biological Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Junghyup Han
- Department of Chemical & Biological Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seungyeon Yu
- Department of Chemical & Biological Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Lianghui Li
- Department of Chemical & Biological Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Youn Sang Kim
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826, Republic of Korea
- Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Chemical & Biological Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Advanced Institute of Convergence Technology, Suwon-si, 16229, Republic of Korea
| |
Collapse
|
2
|
Bruckmann FDS, Foucaud Y, Pinheiro RF, Silva LFO, Oliveira MLS, Badawi M, Dotto GL. Removal of phenazopyridine from water, synthetic urine, and real sample by adsorption using graphene oxide: A DFT theoretical/experimental approach. CHEMOSPHERE 2024; 363:142738. [PMID: 39004147 DOI: 10.1016/j.chemosphere.2024.142738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/10/2024] [Accepted: 06/28/2024] [Indexed: 07/16/2024]
Abstract
Herein, graphene oxide was used as the highly efficient phenazopyridine adsorbent from aqueous medium, synthetic, and human urine. The nanoadsorbent was characterized by different instrumental techniques. The adsorption capacity (1253.17 mg g-1) was reached at pH 5.0, using an adsorbent dosage of 0.125 g L-1 at 298 K. The Sips and Langmuir described the equilibrium data well. At the same time, the pseudo-second order was more suitable for fitting the kinetic data. Thermodynamic parameters revealed the exothermic nature of adsorption with an increase in randomness at the solid-liquid interface. The magnitude of the enthalpy variation value indicates that the process involves the physisorption phenomenon. At the same time, ab initio molecular dynamics data corroborated with the thermodynamic results, indicating that adsorbent and adsorbate establish hydrogen bonds through the amine groups (adsorbate) and hydroxyl groups on the adsorbent surface (weak interactions). Electrostatic interactions are also involved. Additionally, the adsorption assays conducted in simulated medium and human urine showed the excellent performance of adsorbent material to remove the drug in real concentrations excreted by the kidneys (removal values higher than 60%).
Collapse
Affiliation(s)
- Franciele da Silva Bruckmann
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | - Yann Foucaud
- Université de Lorraine, CNRS, Géoressources, F-54000 Nancy, France
| | - Raphael Forgearini Pinheiro
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil
| | | | | | - Michael Badawi
- Université de Lorraine, CNRS, L2CM, F-57000 Metz, France
| | - Guilherme Luiz Dotto
- Research Group on Adsorptive and Catalytic Process Engineering (ENGEPAC), Federal University of Santa Maria, Av. Roraima, 1000-7, Santa Maria, RS, 97105-900, Brazil.
| |
Collapse
|
3
|
Pervez MN, Jiang T, Mahato JK, Ilango AK, Kumaran Y, Zuo Y, Zhang W, Efstathiadis H, Feldblyum JI, Yigit MV, Liang Y. Surface Modification of Graphene Oxide for Fast Removal of Per- and Polyfluoroalkyl Substances (PFAS) Mixtures from River Water. ACS ES&T WATER 2024; 4:2968-2980. [PMID: 39021580 PMCID: PMC11249979 DOI: 10.1021/acsestwater.4c00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 07/20/2024]
Abstract
Per- and polyfluoroalkyl substances (PFAS) make up a diverse group of industrially derived organic chemicals that are of significant concern due to their detrimental effects on human health and ecosystems. Although other technologies are available for removing PFAS, adsorption remains a viable and effective method. Accordingly, the current study reported a novel type of graphene oxide (GO)-based adsorbent and tested their removal performance toward removing PFAS from water. Among the eight adsorbents tested, GO modified by a cationic surfactant, cetyltrimethylammonium chloride (CTAC), GO-CTAC was found to be the best, showing an almost 100% removal for all 11 PFAS tested. The adsorption kinetics were best described by the pseudo-second-order model, indicating rapid adsorption. The isotherm data were well supported by the Toth model, suggesting that PFAS adsorption onto GO-CTAC involved complex interactions. Detailed characterization using scanning electron microscopy-energy dispersive X-ray spectroscopy, Fourier transform infrared, thermogravimetric analysis, X-ray diffraction, and X-ray photoelectron spectroscopy confirmed the proposed adsorption mechanisms, including electrostatic and hydrophobic interactions. Interestingly, the performance of GO-CTAC was not influenced by the solution pH, ionic strength, or natural organic matter. Furthermore, the removal efficiency of PFAS at almost 100% in river water demonstrated that GO-CTAC could be a suitable adsorbent for capturing PFAS in real surface water.
Collapse
Affiliation(s)
- Md. Nahid Pervez
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Tao Jiang
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Jaydev Kumar Mahato
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Aswin Kumar Ilango
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Yamini Kumaran
- Department
of Nanoscale Science and Engineering, University
at Albany, State University of New York, Albany, New York 12222, United States
| | - Yuwei Zuo
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Weilan Zhang
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| | - Haralabos Efstathiadis
- Department
of Nanoscale Science and Engineering, University
at Albany, State University of New York, Albany, New York 12222, United States
| | - Jeremy I. Feldblyum
- Department
of Chemistry, University at Albany, State
University of New York, Albany, New York 12222, United States
| | - Mehmet V. Yigit
- Department
of Chemistry, University at Albany, State
University of New York, Albany, New York 12222, United States
| | - Yanna Liang
- Department
of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States
| |
Collapse
|
4
|
Saeed-Ul-Hassan M, Ehtisham M, Badawi AK, Khan AM, Khan RA, Ismail B. A comparative study of moisture adsorption on GO, MOF-5, and GO/MOF-5 composite for applications in atmospheric water harvesting. NANOSCALE ADVANCES 2024; 6:3668-3679. [PMID: 38989524 PMCID: PMC11232537 DOI: 10.1039/d4na00150h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/28/2024] [Indexed: 07/12/2024]
Abstract
Water scarcity is an alarming situation across the globe. Several methods have been reported in the literature to minimize the water shortage problem. Sorbent-based atmospheric water harvesting (SBAWH) is considered an energy-efficient, low-cost strategy, and sustainable approach. In the present study, the synthesis of graphene oxide (GO) was carried out using a modified Hummers' method, while the synthesis of MOF-5 and a GO/MOF-5 composite was carried out using a solvothermal approach. The synthesized materials were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR). The phase composition and crystallinity of all synthesized samples were confirmed by XRD analysis. SEM analysis provided information about the surface morphology of all synthesized samples. The adsorption of water vapors on surfaces of GO, MOF-5, and the GO/MOF-5 composite was evaluated by FTIR analysis. The negative charge was explored by the PZC technique on the surface of all synthesized materials. The water adsorption characteristics of GO, MOF-5, and the GO/MOF-5 composite were evaluated using an atmospheric water harvesting (AWH) plant. The maximum adsorption capacity of 542 mg g-1 was achieved by the MOF at 55% RH (relative humidity), while a low adsorption capacity of the MOF was observed at higher humidity values. This problem was overcome by making a GO/MOF-5 composite. GO imparts structural stability to the MOF-5 structure at higher humidity values. The maximum adsorption capacity of 1137 mg g-1 was achieved by the GO/MOF-5 composite at 75% RH. Several isotherm models, such as Langmuir, Freundlich, and Temkin, were applied to confirm the single-site occupation by water molecules and chemisorption behavior. Several thermodynamic properties were calculated, including isosteric heat (Q st), Gibbs free energy (ΔG), and sorption entropy (ΔS). The overall thermodynamics study confirms that the adsorption process is spontaneous and exothermic. In addition, second-order kinetics confirms that all synthesized material shows chemisorption behavior.
Collapse
Affiliation(s)
- Muhammad Saeed-Ul-Hassan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Muhammad Ehtisham
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Ahmad K Badawi
- Civil Engineering Department, El-Madina Higher Institute for Engineering and Technology Giza 12588 Egypt
| | - Asad Muhammad Khan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Rafaqat Ali Khan
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| | - Bushra Ismail
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus-22060 Pakistan +92 992 383595 +92 992 383592
| |
Collapse
|
5
|
Liu X, Sun Y, Song H, Zhang W, Liu T, Chu Z, Gu X, Ma Z, Jin W. Nanomaterials-based electrochemical biosensors for diagnosis of COVID-19. Talanta 2024; 274:125994. [PMID: 38547841 DOI: 10.1016/j.talanta.2024.125994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/15/2024] [Accepted: 03/24/2024] [Indexed: 05/04/2024]
Abstract
Since the outbreak of corona virus disease 2019 (COVID-19), this pandemic has caused severe death and infection worldwide. Owing to its strong infectivity, long incubation period, and nonspecific symptoms, the early diagnosis is essential to reduce risk of the severe illness. The electrochemical biosensor, as a fast and sensitive technique for quantitative analysis of body fluids, has been widely studied to diagnose different biomarkers caused at different infective stages of COVID-19 virus (SARS-CoV-2). Recently, many reports have proved that nanomaterials with special architectures and size effects can effectively promote the biosensing performance on the COVID-19 diagnosis, there are few comprehensive summary reports yet. Therefore, in this review, we will pay efforts on recent progress of advanced nanomaterials-facilitated electrochemical biosensors for the COVID-19 detections. The process of SARS-CoV-2 infection in humans will be briefly described, as well as summarizing the types of sensors that should be designed for different infection processes. Emphasis will be supplied to various functional nanomaterials which dominate the biosensing performance for comparison, expecting to provide a rational guidance on the material selection of biosensor construction for people. Finally, we will conclude the perspective on the design of superior nanomaterials-based biosensors facing the unknown virus in future.
Collapse
Affiliation(s)
- Xinxin Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Yifan Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Huaiyu Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Wei Zhang
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China
| | - Tao Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China.
| | - Zhenyu Chu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Xiaoping Gu
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China.
| | - Zhengliang Ma
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China.
| |
Collapse
|
6
|
Navarro-Rodriguez M, Somoza AM, Palacios-Lidon E. Exploring surface charge dynamics: implications for AFM height measurements in 2D materials. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2024; 15:767-780. [PMID: 38979526 PMCID: PMC11228822 DOI: 10.3762/bjnano.15.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 06/13/2024] [Indexed: 07/10/2024]
Abstract
An often observed artifact in atomic force microscopy investigations of individual monolayer flakes of 2D materials is the inaccurate height derived from topography images, often attributed to capillary or electrostatic forces. Here, we show the existence of a Joule dissipative mechanism related to charge dynamics and supplementing the dissipation due to capillary forces. This particular mechanism arises from the surface conductivity and assumes significance specially in the context of 2D materials on insulating supports. In such scenarios, the oscillating tip induces in-plane charge currents that in many circumstances constitute the main dissipative contribution to amplitude reduction and, consequently, affect the measured height. To investigate this phenomenon, we conduct measurements on monolayer flakes of co-deposited graphene oxide and reduced graphene oxide. Subsequently, we introduce a general model that elucidates our observations. This approach offers valuable insights into the dynamics of surface charges and their intricate interaction with the tip.
Collapse
Affiliation(s)
- Mario Navarro-Rodriguez
- Centro de Investigación en Óptica y Nanofísica (CIOyN), Department of Physics, University of Murcia, E-30100, Spain
| | - Andres M Somoza
- Centro de Investigación en Óptica y Nanofísica (CIOyN), Department of Physics, University of Murcia, E-30100, Spain
| | - Elisa Palacios-Lidon
- Centro de Investigación en Óptica y Nanofísica (CIOyN), Department of Physics, University of Murcia, E-30100, Spain
| |
Collapse
|
7
|
Liu Y, Wang Y, Xin JH. Capillarity in Interfacial Liquids and Marbles: Mechanisms, Properties, and Applications. Molecules 2024; 29:2986. [PMID: 38998938 PMCID: PMC11243323 DOI: 10.3390/molecules29132986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
The mechanics of capillary force in biological systems have critical roles in the formation of the intra- and inter-cellular structures, which may mediate the organization, morphogenesis, and homeostasis of biomolecular condensates. Current techniques may not allow direct and precise measurements of the capillary forces at the intra- and inter-cellular scales. By preserving liquid droplets at the liquid-liquid interface, we have discovered and studied ideal models, i.e., interfacial liquids and marbles, for understanding general capillary mechanics that existed in liquid-in-liquid systems, e.g., biomolecular condensates. The unexpectedly long coalescence time of the interfacial liquids revealed that the Stokes equation does not hold as the radius of the liquid bridge approaches zero, evidencing the existence of a third inertially limited viscous regime. Moreover, liquid transport from a liquid droplet to a liquid reservoir can be prohibited by coating the droplet surface with hydrophobic or amphiphilic particles, forming interfacial liquid marbles. Unique characteristics, including high stability, transparency, gas permeability, and self-assembly, are observed for the interfacial liquid marbles. Phase transition and separation induced by the formation of nanostructured materials can be directly observed within the interfacial liquid marbles without the need for surfactants and agitation, making them useful tools to research the interfacial mechanics.
Collapse
Affiliation(s)
- Yang Liu
- Department of Biomedical Engineering, Sun Yat-sen University, Shenzhen 518107, China
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China; (Y.W.); (J.H.X.)
- School of Physics and Electronic Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Yuanfeng Wang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China; (Y.W.); (J.H.X.)
| | - John H. Xin
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China; (Y.W.); (J.H.X.)
| |
Collapse
|
8
|
Zhou Y, Bauer RA, Zhang X, Hong N, Verweij H. Swelling of Thin Graphene Oxide Film in Water Vapor Studied by In Situ Spectroscopic Ellipsometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12497-12503. [PMID: 38836692 DOI: 10.1021/acs.langmuir.4c00897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Graphene oxide (GO) is obtained by the chemical treatment of graphene sheets, resulting in decoration with oxygen-containing functional groups. In the work presented here, we examined marked changes that occur in a thin film of parallel aligned GO sheets when exposed to water vapor at various pressures. It was found that exceptionally fast and substantial water uptake and release occur that is accompanied by major changes in GO interlayer spacing. These characteristics were obtained in situ with spectroscopic ellipsometry. At 99% relative humidity (RH) and 25 °C, the interlayer spacing became 1.41 nm, which recovers to ∼0.8 nm within 30 s when exposed to 10% RH. Besides layer thickness values, uniaxial optical constants for the GO vs RH were derived from the ellipsometry data. Molar refraction theory was applied that indicated monolayer water formation at ∼91% RH at 25 °C upon water adsorption. Our findings contribute to the understanding of the interaction between GO and its environment. The very outspoken effect of external water vapor pressure on GO water content, interlayer spacing, and optical properties can be utilized in sensing and separation devices, subnanometer positioning, chemical switches, and environmentally aware materials.
Collapse
Affiliation(s)
- Yi Zhou
- Department of Materials Science and Engineering, The Ohio State University, Suite 2136, Mars G. Fontana Laboratories, 140 W 19th Avenue, Columbus, Ohio 43210, United States
| | - Ralph A Bauer
- Global R&D Inc., 539 Industrial Mile Road, Columbus, Ohio 43228, United States
| | - Xin Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Nina Hong
- J.A. Woollam Co. Inc., 311 South seventh Street, Lincoln, Nebraska 68508, United States
| | - Hendrik Verweij
- Department of Materials Science and Engineering, The Ohio State University, Suite 2136, Mars G. Fontana Laboratories, 140 W 19th Avenue, Columbus, Ohio 43210, United States
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| |
Collapse
|
9
|
Futamura R, Iiyama T, Ueda T, Bonnaud PA, Coudert FX, Furuse A, Tanaka H, Pellenq RJM, Kaneko K. Staggered structural dynamic-mediated selective adsorption of H 2O/D 2O on flexible graphene oxide nanosheets. Nat Commun 2024; 15:3585. [PMID: 38678034 PMCID: PMC11055881 DOI: 10.1038/s41467-024-47838-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 04/04/2024] [Indexed: 04/29/2024] Open
Abstract
Graphene oxide (GO) is the one of the most promising family of materials as atomically thin membranes for water-related molecular separation technologies due to its amphipathic nature and layered structure. Here, we show important aspects of GO on water adsorption from molecular dynamics (MD) simulations, in-situ X-ray diffraction (XRD) measurements, and ex-situ nuclear magnetic resonance (NMR) measurements. Although the MD simulations for GO and the reduced GO models revealed that the flexibility of the interlayer spacing could be attributed to the oxygen-functional groups of GO, the ultra-large GO model cannot well explain the observed swelling of GO from XRD experiments. Our MD simulations propose a realistic GO interlayer structure constructed by staggered stacking of flexible GO sheets, which can explain very well the swelling nature upon water adsorption. The transmission electron microscopic (TEM) observation also supports the non-regular staggered stacking structure of GO. Furthermore, we demonstrate the existence of the two distinct types of adsorbed water molecules in the staggered stacking: water bonded with hydrophilic functional groups and "free" mobile water. Finally, we show that the staggered stacking of GO plays a crucial role in H/D isotopic recognition in water adsorption, as well as the high mobility of water molecules.
Collapse
Affiliation(s)
- Ryusuke Futamura
- Department of Chemistry, Faculty of Science, Shinshu University, 3-1-1, Asahi, Matsumoto, 390-8621, Japan
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1, Wakasato, Nagano, 380-8553, Japan
| | - Taku Iiyama
- Department of Chemistry, Faculty of Science, Shinshu University, 3-1-1, Asahi, Matsumoto, 390-8621, Japan
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1, Wakasato, Nagano, 380-8553, Japan
| | - Takahiro Ueda
- Faculty of Science, Osaka University, 1-13, Machikaneyamacho, Toyonaka, 560-0043, Japan
| | - Patrick A Bonnaud
- Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba, Sendai, 980-8577, Japan
| | - François-Xavier Coudert
- Chimie Paris Tech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 11 Pierre and Marie Curie, 75231, Paris, France
| | - Ayumi Furuse
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1, Wakasato, Nagano, 380-8553, Japan
| | - Hideki Tanaka
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1, Wakasato, Nagano, 380-8553, Japan
| | - Roland J-M Pellenq
- European Institute of Membranes (IEM), CNRS and the University of Montpellier, 300 Avenue du Professeur Jeanbrau, 34090, Montpellier, France
| | - Katsumi Kaneko
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1, Wakasato, Nagano, 380-8553, Japan.
| |
Collapse
|
10
|
Luo W, Zhao L, Huang Z, Ni J, Tu Y. Confined and spontaneously transformed oxidation structures due to the intrinsic heterogeneous surface morphology of C3N monolayer. J Chem Phys 2024; 160:154701. [PMID: 38619458 DOI: 10.1063/5.0202848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 03/27/2024] [Indexed: 04/16/2024] Open
Abstract
Identifying the oxidation structure of two-dimensional interfaces is crucial to improve surface chemistry and electronic properties. Beyond graphene with only phenyl rings, a novel carbon-nitrogen material, C3N, presents an intrinsic heterogeneous surface morphology where each phenyl ring is encircled by six nitrogen atoms, yet its atomistic oxidation structure remains unclear. Here, combining a series of density functional theory calculations and ab initio molecular dynamics simulations, we demonstrate that thermodynamically favorable oxidation loci are confined to the phenyl ring, and kinetic transformations of oxidation structures are feasible along the phenyl ring, whereas those toward nitrogen atoms are proven to be extremely difficult. These results are attributed to the lower barrier of oxygen atom migration along the phenyl ring, while the significantly high barriers toward nitrogen atoms are due to the heterogeneous potential energy surface for oxygen-C3N interaction. This work highlights the significance of surface morphology on the characteristics of oxidation structure, offering insights into tunable electronic properties via confined interfacial oxidation.
Collapse
Affiliation(s)
- Wenjin Luo
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Liang Zhao
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Zhijing Huang
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Junqing Ni
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Yusong Tu
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou, Jiangsu 225009, China
| |
Collapse
|
11
|
Halbig CE, Mukherjee B, Eigler S, Garaj S. Origin of Oxygen in Graphene Oxide Revealed by 17O and 18O Isotopic Labeling. J Am Chem Soc 2024; 146:7431-7438. [PMID: 38446768 PMCID: PMC10958498 DOI: 10.1021/jacs.3c12543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 03/08/2024]
Abstract
Wet-chemical oxidation of graphite in a mixture of sulfuric acid with a strong oxidizer, such as potassium permanganate, leads to the formation of graphene oxide with hydroxyl and epoxide groups as the major functional groups. Nevertheless, the reaction mechanism remains unclear and the source of oxygen is a subject of debate. It could theoretically originate from the oxidizer, water, or sulfuric acid. In this study, we employed 18O and 17O labeled reagents to experimentally elucidate the reaction mechanism and, thus, determine the origin of oxo-functional groups. Our findings reveal the multifaceted roles of sulfuric acid, acting as a dispersion medium, a dehydrating agent for potassium permanganate, and an intercalant. Additionally, it significantly acts as a source of oxygen next to manganese oxides. Through 17O solid-state magic-angle spinning (MAS) NMR experiments, we exclude water as a direct reaction partner during oxygenation. With labeling experiments, we conclude on mechanistic insights, which may be exploited for the synthesis of novel graphene derivatives.
Collapse
Affiliation(s)
- Christian E. Halbig
- Department
of Chemistry, Biology and Pharmacy, Freie
Universität Berlin, 14195 Berlin, Germany
- Department
of Physics, Faculty of Science, National
University of Singapore, 117551 Singapore, Singapore
| | - Bristy Mukherjee
- Department
of Materials Science and Engineering, National
University of Singapore, 117575 Singapore, Singapore
| | - Siegfried Eigler
- Department
of Chemistry, Biology and Pharmacy, Freie
Universität Berlin, 14195 Berlin, Germany
| | - Slaven Garaj
- Department
of Materials Science and Engineering, National
University of Singapore, 117575 Singapore, Singapore
- Department
of Physics, Faculty of Science, National
University of Singapore, 117551 Singapore, Singapore
- Department
of Biomedical Engineering, National University
of Singapore, 117583 Singapore, Singapore
| |
Collapse
|
12
|
Janulewicz KA, Fok T, Bartosewicz B, Bartnik A, Fiedorowicz H, Wachulak P. Structural Stability and Disorder Level of Moderately Reduced Paper-like Graphene Oxide Investigated with Micro-Raman Analysis. MATERIALS (BASEL, SWITZERLAND) 2024; 17:877. [PMID: 38399127 PMCID: PMC10890625 DOI: 10.3390/ma17040877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024]
Abstract
This paper discusses the results of the micro-Raman analysis performed on paper-like graphene oxide (GO) samples consisting of many functionalised graphene layers and annealed at moderate temperatures (≤500 °C) under vacuum conditions (p ≃ 10-4 mbar). The analysis of the standalone samples revealed that the obtained material is characterised by a noticeable disorder level but still stays below the commonly accepted threshold of high or total disorder. GO formed in a simple way showed two spectral bands above 1650 cm-1 recorded very rarely or not at all and their origin has been discussed in detail. The results also confirmed the metastable character of multilayer GO after the annealing process at moderate temperatures as the C/O ratio was kept between 2 and 3 and the spectral features were stable within the annealing temperature range.
Collapse
Affiliation(s)
| | | | | | | | | | - Przemysław Wachulak
- Institute of Optoelectronics, Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland; (K.A.J.); (T.F.); (B.B.); (A.B.); (H.F.)
| |
Collapse
|
13
|
Akbarzadeh R, Předota M. ReaxFF molecular dynamics of graphene oxide/NaCl aqueous solution interfaces. Phys Chem Chem Phys 2024; 26:2603-2612. [PMID: 38170896 DOI: 10.1039/d3cp04735k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In this work, the interaction of NaCl aqueous solution with graphene (G), graphene oxide (GO), and graphite oxide (GTO) is studied using the ReaxFF module of Amsterdam Modeling Suite (AMS) software. We consider four models using the NaCl aqueous solution, containing a graphene sheet (G), a single sheet of GO with epoxide and hydroxyl groups on its surface, 4 layers of GO to model GTO, and a bulk NaCl solution as a reference. The structural and dynamical properties of G, GO, and GTO were quantified by analyzing the functional groups, radial distribution functions, density profiles and diffusivities of water and ions. Due to the reactive force field, the systems underwent spontaneous modification of surface functional groups during the first 750 ps after which the structure stabilizes (the energy stabilizes in less than 400 ps). Pristine graphene in contact with the NaCl solution formed hydroxyl groups on the edges, i.e., converted to partially reduced graphene oxide. The epoxy groups (Oe) on the initial GO were rather unstable, leading to a reduction of their number, however, there was an increase in the number of hydroxyl groups (Oh), mainly at the edges. The interactions of NaCl with the carbon-based sheets are rather weak, including GO and GTO which are decorated with numerous functional groups. Diffusion coefficients of water agree with the available data, but discrepancies in Na+ and Cl- diffusivity compared to other references underscore the need for further development in the dynamic parameters of the reactive force field used. In essence, our research provides specific data previously unreported, laying a foundation for advancing water desalination system design. The study's novelty lies in its realistic approach to graphene/graphene oxide modification, comprehensive characterization, and the application of the reactive force field to explore the graphene oxide-NaCl aqueous interface, contributing to the development of a practical membrane system for water desalination.
Collapse
Affiliation(s)
- Rokhsareh Akbarzadeh
- Department of Physics, Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic
| | - Milan Předota
- Department of Physics, Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic.
| |
Collapse
|
14
|
Mai S, Inkielewicz-Stepniak I. Graphene Oxide Nanoparticles and Organoids: A Prospective Advanced Model for Pancreatic Cancer Research. Int J Mol Sci 2024; 25:1066. [PMID: 38256139 PMCID: PMC10817028 DOI: 10.3390/ijms25021066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Pancreatic cancer, notorious for its grim 10% five-year survival rate, poses significant clinical challenges, largely due to late-stage diagnosis and limited therapeutic options. This review delves into the generation of organoids, including those derived from resected tissues, biopsies, pluripotent stem cells, and adult stem cells, as well as the advancements in 3D printing. It explores the complexities of the tumor microenvironment, emphasizing culture media, the integration of non-neoplastic cells, and angiogenesis. Additionally, the review examines the multifaceted properties of graphene oxide (GO), such as its mechanical, thermal, electrical, chemical, and optical attributes, and their implications in cancer diagnostics and therapeutics. GO's unique properties facilitate its interaction with tumors, allowing targeted drug delivery and enhanced imaging for early detection and treatment. The integration of GO with 3D cultured organoid systems, particularly in pancreatic cancer research, is critically analyzed, highlighting current limitations and future potential. This innovative approach has the promise to transform personalized medicine, improve drug screening efficiency, and aid biomarker discovery in this aggressive disease. Through this review, we offer a balanced perspective on the advancements and future prospects in pancreatic cancer research, harnessing the potential of organoids and GO.
Collapse
Affiliation(s)
| | - Iwona Inkielewicz-Stepniak
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdańsk, 80-210 Gdańsk, Poland;
| |
Collapse
|
15
|
Antolín-Rodríguez A, Merino-Maldonado D, González-Domínguez JM, Fernández-Raga M, Morán-del Pozo JM, García-González J, Juan-Valdés A. Performance of graphene oxide as a water-repellent coating nanomaterial to extend the service life of concrete structures. Heliyon 2024; 10:e23969. [PMID: 38259962 PMCID: PMC10801211 DOI: 10.1016/j.heliyon.2023.e23969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Surface treatments help to protect the built heritage against damage (environmental, accidental, etc.), reducing repair and restitution costs and increasing the useful life of building materials. The use of nanomaterials is currently the most important field of research in surface treatment technology for the preservation of building materials and, more specifically, to improve their durability and prevent their deterioration, extending their useful life. This paper studies the influence of a graphene oxide (GO) suspension as a surface treatment on the properties of concrete. The results indicate that, at best, surface treatment with GO can decrease both the water absorption and capillary absorption of concrete by about 15 %. The increase in the amount of GO deposited as a surface treatment leads to a further reduction in concrete water absorption. It is shown that, at best, GO coating also reduces water penetration at low and high pressures by approximately 20 % and 60 %, respectively. In addition, scanning electron microscopy analysis shows that GO surface treatment facilitates the hydration process and densifies the concrete microstructure. A simple aqueous suspension of GO is revealed as a tool with a high potential to protect concrete surfaces in a fast and cost-effective way, thanks to the easy application by spraying and the small amount of material needed to obtain great results.
Collapse
Affiliation(s)
- Andrea Antolín-Rodríguez
- INMATECO, Department of Agricultural Engineering and Sciences, School of Agricultural and Forest Engineering, University of Leon, Spain
| | - Daniel Merino-Maldonado
- INMATECO, Department of Agricultural Engineering and Sciences, School of Agricultural and Forest Engineering, University of Leon, Spain
| | - José M. González-Domínguez
- Instituto de Carboquímica (ICB-CSIC), Group of Carbon Nanostructures and Nanotechnology (G-CNN), C/Miguel Luesma Castán 4, 50018 Zaragoza, Spain
| | - María Fernández-Raga
- Department of Chemistry and Applied Physics, Industrial Engineering School, University of Leon, Vegazana Campus S/N, 24071 Leon, Spain
| | - Julia Mª. Morán-del Pozo
- INMATECO, Department of Agricultural Engineering and Sciences, School of Agricultural and Forest Engineering, University of Leon, Spain
| | - Julia García-González
- INMATECO, Department of Agricultural Engineering and Sciences, School of Agricultural and Forest Engineering, University of Leon, Spain
| | - Andrés Juan-Valdés
- INMATECO, Department of Agricultural Engineering and Sciences, School of Agricultural and Forest Engineering, University of Leon, Spain
| |
Collapse
|
16
|
Madagalam M, Bartoli M, Tagliaferro A. A Short Overview on Graphene and Graphene-Related Materials for Electrochemical Gas Sensing. MATERIALS (BASEL, SWITZERLAND) 2024; 17:303. [PMID: 38255471 PMCID: PMC10817420 DOI: 10.3390/ma17020303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
The development of new and high-performing electrode materials for sensing applications is one of the most intriguing and challenging research fields. There are several ways to approach this matter, but the use of nanostructured surfaces is among the most promising and highest performing. Graphene and graphene-related materials have contributed to spreading nanoscience across several fields in which the combination of morphological and electronic properties exploit their outstanding electrochemical properties. In this review, we discuss the use of graphene and graphene-like materials to produce gas sensors, highlighting the most relevant and new advancements in the field, with a particular focus on the interaction between the gases and the materials.
Collapse
Affiliation(s)
- Mallikarjun Madagalam
- Department of Applied Science and Technology, Politecnico di Torino, Duca degli Abruzzi 24, 10129 Turin, Italy;
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti, 9, 50121 Florence, Italy
| | - Mattia Bartoli
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via Giuseppe Giusti, 9, 50121 Florence, Italy
- Center for Sustainable Future Technologies (CSFT), Istituto Italiano di Tecnologia (IIT), Via Livorno 60, 10144 Turin, Italy
| | - Alberto Tagliaferro
- Department of Applied Science and Technology, Politecnico di Torino, Duca degli Abruzzi 24, 10129 Turin, Italy;
- Faculty of Science, OntarioTech University, Simcoe Street North, Oshawa, ON L1G 0C5, Canada
| |
Collapse
|
17
|
Sachhin SM, Mahabaleshwar US, Huang HN, Sunden B, Zeidan D. An influence of temperature jump and Navier's slip-on hybrid nano fluid flow over a permeable stretching/shrinking sheet with heat transfer and inclined MHD. NANOTECHNOLOGY 2023; 35:115401. [PMID: 38064739 DOI: 10.1088/1361-6528/ad13be] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/08/2023] [Indexed: 12/28/2023]
Abstract
This research article, explores the influence of an inclined magnetic field on the fluid flow over a permeable stretching/shrinking surface with heat transfer. The study use water as a conventional base fluid, with graphene oxide (GO) and Aluminum oxide (Al2O3) nanoparticles submerged to create a nanofluid, the system of governing nonlinear partial differential equations converted into ordinary differential equations via suitable similarity conversions. This allow for the unique solution for stretching sheet/shrinking sheets to be obtained, along with the corresponding temperature solution in terms of the hypergeometric function, several parameters are included in the investigation and their contribution is graphically explained to examine physical characteristics such as radiation, inclined magnetic field, solution domain, volume fraction parameter, and temperature jump. Increasing the volume fraction and thermal radiation increases the thermal boundary layer, increasing the magnetic field parameter and inverse Darcy number increases the temperature and decays the velocity profile. The present work has many useful applications in engineering, biological and physical sciences, as well as in cleaning engine lubricants and thrust-bearing technologies.
Collapse
Affiliation(s)
- S M Sachhin
- Department of Studies in Mathematics, Davangere University, Shivagangothri, Davangere, 577007, India
| | - U S Mahabaleshwar
- Department of Studies in Mathematics, Davangere University, Shivagangothri, Davangere, 577007, India
| | - H-N Huang
- Departments of Applied Mathematics, Tunghai University, Taichung 407224, Taiwan (R.O.C.)
| | - B Sunden
- Lund University, Lund, SE-22100, Sweden
| | - Dia Zeidan
- School of Basic Sciences and Humanities, German Jordanian University, Amman, Jordan
| |
Collapse
|
18
|
Bresnahan CG, Schutt TC, Shukla MK. Exploration of functionalizing graphene and the subsequent impact on PFAS adsorption capabilities via molecular dynamics. CHEMOSPHERE 2023; 345:140462. [PMID: 37866495 DOI: 10.1016/j.chemosphere.2023.140462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are extremely stable compounds due to their strong C-F bonds. They are used in water and stain proof coatings, aqueous film forming foams for fire suppression, cosmetics, paints, adhesives, etc. PFAS have been found in soils and waterways around the world due to their widespread usage and recalcitrance to degradation. Development of selective adsorbent materials is necessary to effectively capture a vast family of PFAS structures in order to remediate PFAS contamination in the environment. The work herein is focused on extracting design principles from molecular dynamics simulations of PFAS with functionalized graphene materials. Simulations examined how PFBA, PFOA, and PFOS interact with graphene, graphene oxide, nitrogen group-functionalized graphene oxide, partially fluorinated graphene flakes, and fully fluorinated flakes. Five flakes were used in each simulation to examine how interactions between flakes may lead to competitive interactions with respect to PFAS or formation of pores. Our study revealed that both the clustering mechanisms of the flakes and functional groups on the flake play a role in PFAS adsorption. The most effective functionalizations for PFAS adsorption are as follows: pristine graphene ≈ fully fluorinated > graphene oxide ≈ partially fluorinated > amine and amide functionalized graphene oxide flake. Long chain PFAS and sulfonate PFAS had higher propensity to adsorb to the materials compared to short chain PFAS and carboxylic head groups.
Collapse
Affiliation(s)
- Caitlin G Bresnahan
- US Army Corps of Engineers, Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS 39180, United States.
| | - Timothy C Schutt
- US Army Corps of Engineers, Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS 39180, United States
| | - Manoj K Shukla
- US Army Corps of Engineers, Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS 39180, United States.
| |
Collapse
|
19
|
Jian ZB, Wu CH, Chen S. First-Principles Study on Out-of-Plane Piezoelectricity of Self-Assembled Ammonia Layers Confined in Two Vertically Stacked Graphene Oxide Nanosheets. J Phys Chem Lett 2023; 14:10129-10136. [PMID: 37922336 DOI: 10.1021/acs.jpclett.3c02583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Two-dimensional (2D) piezoelectric materials have attracted widespread attention due to their increasingly important niche applications in flexible nanoscale devices. The water-wetted graphene oxide papers exhibit scalable out-of-plane piezoelectricity induced by the hydrogen-bonded network within, and this system can be treated as a potential 2D piezoelectric candidate for future device applications. It triggered our interest to search for more 2D piezoelectric hydrogen-bonded networks. Ammonia (NH3) isoelectronic with water is introduced to generate NH3-wetted graphene oxide papers and realize their out-of-plane piezoelectricity. Their structures and piezoelectricity are investigated using first-principles calculations. They reveal ultrahigh piezoelectricity, compared to the best reported 2D materials. Their piezoelectricity is tuned by varying oxygen-containing functional groups in GO plates, confined NH3 layers, or orientations of NH3 molecules, and it could be applied to fabrication of ammonia sensors. Our study not only enriches the family of 2D piezoelectric nanosystems but also inspires their future experimental exploration.
Collapse
Affiliation(s)
- Zhi-Bin Jian
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Chen-Hua Wu
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| | - Shuang Chen
- Kuang Yaming Honors School and Institute for Brain Sciences, Nanjing University, Nanjing 210023, Jiangsu, China
| |
Collapse
|
20
|
Shaharudin MR, Williams CD, Achari A, Nair RR, Carbone P. Decoding the Interplay between Topology and Surface Charge in Graphene Oxide Membranes During Humidity Induced Swelling. ACS NANO 2023; 17:21923-21934. [PMID: 37917940 PMCID: PMC10655246 DOI: 10.1021/acsnano.3c08260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Graphene oxide (GO) membranes are known to have a complex morphology that depends on the degree of oxidation of the graphene flake and the membrane preparation technique. In this study, using Grand Canonical Monte Carlo simulations, we investigate the mechanism of swelling of GO membranes exposed to different relative humidity (RH) values and show how this is intimately related to the graphene surface chemistry. We show that the structure of the GO membrane changes while the membrane adsorbs water from the environment and that graphene oxide flakes become charged as the membrane is loaded with water and swells. A detailed comparison between simulation and experimental adsorption data reveals that the flake surface charge drives the water adsorption mechanism at low RH when the membrane topology is still disordered and the internal pores are small and asymmetric. As the membrane is exposed to higher RH (80%), the flake acquires more surface charge as more oxide groups deprotonate, and the pores grow in size, yet maintain their disordered geometry. Only for very high relative humidity (98%) does the membrane undergo structural changes. At this level of humidity, the pores in the membrane become slit-like but the flake surface charge remains constant. Our results unveil a very complex mechanism of swelling and show that a single molecular model cannot fully capture the ever-changing chemistry and morphology of the membrane as it swells. Our computational procedure provides the first atomically resolved insight into the GO membrane structure of experimental samples.
Collapse
Affiliation(s)
- Mohd Rafie
bin Shaharudin
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Christopher D. Williams
- Division
of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Oxford Road, M13 9PT Manchester, United Kingdom
| | - Amritroop Achari
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
- National
Graphene Institute, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Rahul R. Nair
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
- National
Graphene Institute, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| | - Paola Carbone
- Department
of Chemical Engineering, School of Engineering, The University of Manchester, Booth Street East, M13 9PL Manchester, United Kingdom
| |
Collapse
|
21
|
Karpova SG, Olkhov AA, Varyan IA, Shilkina NG, Berlin AA, Popov AA, Iordanskii AL. Biocomposites Based on Electrospun Fibers of Poly(3-hydroxybutyrate) and Nanoplatelets of Graphene Oxide: Thermal Characteristics and Segmental Dynamics at Hydrothermal and Ozonation Impact. Polymers (Basel) 2023; 15:4171. [PMID: 37896415 PMCID: PMC10610569 DOI: 10.3390/polym15204171] [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: 08/22/2023] [Revised: 10/05/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
In order to create new biodegradable nanocomposites for biomedicine, packaging, and environmentally effective adsorbents, ultra-thin composite fibers consisting of poly(3-hydroxybutyrate) (PHB) and graphene oxide (GO) were obtained by electrospinning. Comprehensive studies of ultrathin fibers combining thermal characteristics, dynamic electron paramagnetic resonance (ESR) probe measurements, and scanning electron microscopy (SEM) were carried out. It is shown that at the addition of 0.05, 0.1, 0.3, and 1% OG, the morphology and geometry of the fibers and their thermal and dynamic characteristics depend on the composite content. The features of the crystalline and amorphous structure of the PHB fibers were investigated by the ESR and DSC methods. For all compositions of PHB/GO, a nonlinear dependence of the correlation time of molecular mobility TEMPO probe (τ) and enthalpy of biopolyether melting (ΔH) is observed. The influence of external factors on the structural-dynamic properties of the composite fiber, such as hydrothermal exposure of samples in aqueous medium at 70 °C and ozonolysis, leads to extreme dependencies of τ and ΔH, which reflect two processes affecting the structure in opposite ways. The plasticizing effect of water leads to thermal destruction of the orientation of the pass-through chains in the amorphous regions of PHB and a subsequent decrease in the crystalline phase, and the aggregation of GO nanoplates into associates, reducing the number of GO-macromolecule contacts, thus increasing segmental mobility, as confirmed by decreasing τ values. The obtained PHB/GO fibrillar composites should find application in the future for the creation of new therapeutic and packaging systems with improved biocompatibility and high-barrier properties.
Collapse
Affiliation(s)
- Svetlana G. Karpova
- Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina Street, 119334 Moscow, Russia; (S.G.K.); (A.A.O.); (A.A.P.)
| | - Anatoly A. Olkhov
- Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina Street, 119334 Moscow, Russia; (S.G.K.); (A.A.O.); (A.A.P.)
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 36 Stremyanny Lane, 117997 Moscow, Russia
| | - Ivetta A. Varyan
- Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina Street, 119334 Moscow, Russia; (S.G.K.); (A.A.O.); (A.A.P.)
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 36 Stremyanny Lane, 117997 Moscow, Russia
| | - Natalia G. Shilkina
- N. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia; (N.G.S.); (A.A.B.)
| | - Alexander A. Berlin
- N. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia; (N.G.S.); (A.A.B.)
| | - Anatoly A. Popov
- Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina Street, 119334 Moscow, Russia; (S.G.K.); (A.A.O.); (A.A.P.)
- Academic Department of Innovational Materials and Technologies Chemistry, Plekhanov Russian University of Economics, 36 Stremyanny Lane, 117997 Moscow, Russia
| | - Alexey L. Iordanskii
- N. N. Semenov Federal Research Center for Chemical Physics Academy of Science, 119991 Moscow, Russia; (N.G.S.); (A.A.B.)
| |
Collapse
|
22
|
Strojny-Cieślak B, Jaworski S, Wierzbicki M, Pruchniewski M, Sosnowska-Ławnicka M, Szczepaniak J, Lange A, Koczoń P, Zielińska-Górska M, Chwalibóg ES. The cytocompatibility of graphene oxide as a platform to enhance the effectiveness and safety of silver nanoparticles through in vitro studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30151-1. [PMID: 37824053 DOI: 10.1007/s11356-023-30151-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023]
Abstract
The increasing emergence of antibiotic-resistant bacteria and the need to reduce the use of antibiotics call for the development of safe alternatives, such as silver nanoparticles. However, their potential cytotoxic effect needs to be addressed. Graphene oxide provides a large platform that can increase the effectiveness and safety of silver nanoparticles. Graphene oxide and silver nanoparticles complex applied as a part of an innovative material might have direct contact with human tissues, such as skin, or might be inhaled from aerosol or exfoliated pieces of the complex. Thereby, the safety of the prepared complex has to be evaluated carefully, employing a range of methods. We demonstrated the high cytocompatibility of graphene oxide and the graphene oxide-silver nanoparticles complex toward human cell lines, fetal foreskin fibroblasts (HFFF2), and lung epithelial cells (A549). The supporting platform of graphene oxide also neutralized the slight toxicity of bare silver nanoparticles. Finally, in studies on Staphylococcus aureus and Pseudomonas aeruginosa, the number of bacteria reduction was observed after incubation with silver nanoparticles and the graphene oxide-silver nanoparticles complex. Our findings confirm the possibility of employing a graphene oxide-silver nanoparticles complex as a safe agent with reduced silver nanoparticles' cytotoxicity and antibacterial properties.
Collapse
Affiliation(s)
- Barbara Strojny-Cieślak
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland.
| | - Sławomir Jaworski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Michał Pruchniewski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Malwina Sosnowska-Ławnicka
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Jarosław Szczepaniak
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Agata Lange
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Piotr Koczoń
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Marlena Zielińska-Górska
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Ewa Sawosz Chwalibóg
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| |
Collapse
|
23
|
Nagarajan A, Rizwana N, Abraham M, Bhat M, Vetekar A, Thakur G, Chakraborty U, Agarwal V, Nune M. Polycaprolactone/graphene oxide/acellular matrix nanofibrous scaffolds with antioxidant and promyelinating features for the treatment of peripheral demyelinating diseases. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:49. [PMID: 37796399 PMCID: PMC10556163 DOI: 10.1007/s10856-023-06750-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 08/24/2023] [Indexed: 10/06/2023]
Abstract
Peripheral demyelinating diseases entail damage to axons and Schwann cells in the peripheral nervous system. Because of poor prognosis and lack of a cure, this group of diseases has a global impact. The primary underlying cause of these diseases involves the inability of Schwann cells to remyelinate the damaged insulating myelin around axons, resulting in neuronal death over time. In the past decade, extensive research has been directed in the direction of Schwann cells focusing on their physiological and neuroprotective effects on the neurons in the peripheral nervous system. One cause of dysregulation in the remyelinating function of Schwann cells has been associated with oxidative stress. Tissue-engineered biodegradable scaffolds that can stimulate remyelination response in Schwann cells have been proposed as a potential treatment strategy for peripheral demyelinating diseases. However, strategies developed to date primarily focussed on either remyelination or oxidative stress in isolation. Here, we have developed a multifunctional nanofibrous scaffold with material and biochemical cues to tackle both remyelination and oxidative stress in one matrix. We developed a nanofibrous scaffold using polycaprolactone (PCL) as a foundation loaded with antioxidant graphene oxide (GO) and coated this bioscaffold with Schwann cell acellular matrix. In vitro studies revealed both antioxidant and remyelination properties of the developed bioscaffold. Based on the results, the developed multifunctional bioscaffold approach can be a promising biomaterial approach for treating demyelinating diseases.
Collapse
Affiliation(s)
- Aishwarya Nagarajan
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Nasera Rizwana
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Michelle Abraham
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Mahima Bhat
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Aakanksha Vetekar
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
- Department. of Biomedical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Goutam Thakur
- Department. of Biomedical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Uttara Chakraborty
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Manasa Nune
- Manipal Institute of Regenerative Medicine, Bengaluru, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
| |
Collapse
|
24
|
Guirguis A, Yang W, Conlan XA, Kong L, Cahill DM, Wang Y. Boosting Plant Photosynthesis with Carbon Dots: A Critical Review of Performance and Prospects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300671. [PMID: 37381636 DOI: 10.1002/smll.202300671] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/31/2023] [Indexed: 06/30/2023]
Abstract
Artificially augmented photosynthesis in nano-bionic plants requires tunable nano-antenna structures with physiochemical and optoelectronic properties, as well as unique light conversion capabilities. The use of nanomaterials to promote light capture across photosystems, primarily by carbon dots, has shown promising results in enhancing photosynthesis through tunable uptake, translocation, and biocompatibility. Carbon dots possess the ability to perform both down and up-light conversions, making them effective light promoters for harnessing solar energy beyond visible light wavelengths.This review presents and discusses the recent progress in fabrication, chemistry, and morphology, as well as other properties such as photoluminescence and energy conversion efficiency of nano-antennas based on carbon dots. The performance of artificially boosted photosynthesis is discussed and then correlated with the conversion properties of carbon dots and how they are applied to plant models. The challenges related to the nanomaterial delivery and the performance evaluation practices in modified photosystems, consideration of the reliability of this approach, and the potential avenues for performance improvements through other types of nano-antennas based on alternative nanomaterials are also critically evaluated. It is anticipated that this review will stimulate more high-quality research in plant nano-bionics and provide avenues to enhance photosynthesis for future agricultural applications.
Collapse
Affiliation(s)
- Albert Guirguis
- School of Life & Environment Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
| | - Wenrong Yang
- School of Life & Environment Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
| | - Xavier A Conlan
- School of Life & Environment Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
| | - Lingxue Kong
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria, 3216, Australia
| | - David M Cahill
- School of Life & Environment Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
| | - Yichao Wang
- School of Life & Environment Sciences, Deakin University, Waurn Ponds, Victoria, 3216, Australia
- School of Engineering, Design and Built Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| |
Collapse
|
25
|
Kim S, Choi H, Kim B, Lim G, Kim T, Lee M, Ra H, Yeom J, Kim M, Kim E, Hwang J, Lee JS, Shim W. Extreme Ion-Transport Inorganic 2D Membranes for Nanofluidic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206354. [PMID: 36112951 DOI: 10.1002/adma.202206354] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Inorganic 2D materials offer a new approach to controlling mass diffusion at the nanoscale. Controlling ion transport in nanofluidics is key to energy conversion, energy storage, water purification, and numerous other applications wherein persistent challenges for efficient separation must be addressed. The recent development of 2D membranes in the emerging field of energy harvesting, water desalination, and proton/Li-ion production in the context of green energy and environmental technology is herein discussed. The fundamental mechanisms, 2D membrane fabrication, and challenges toward practical applications are highlighted. Finally, the fundamental issues of thermodynamics and kinetics are outlined along with potential membrane designs that must be resolved to bridge the gap between lab-scale experiments and production levels.
Collapse
Affiliation(s)
- Sungsoon Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hong Choi
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Bokyeong Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Geonwoo Lim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Taehoon Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minwoo Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hansol Ra
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jihun Yeom
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minjun Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Eohjin Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jiyoung Hwang
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- IT Materials Division, Advanced Materials Company, LG Chem R&D Campus, Daejeon, 34122, Republic of Korea
| | - Joo Sung Lee
- Separator Division, Advanced Materials Company, LG Chem R&D Campus, Daejeon, 34122, Republic of Korea
| | - Wooyoung Shim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center for Multi-Dimensional Materials, Yonsei University, Seoul, 03722, Republic of Korea
- Center for NanoMedicine, Institute for Basic Science (IBS), Seoul, 03722, Republic of Korea
| |
Collapse
|
26
|
Carr AJ, Lee SE, Uysal A. Ion and water adsorption to graphene and graphene oxide surfaces. NANOSCALE 2023; 15:14319-14337. [PMID: 37561081 DOI: 10.1039/d3nr02452k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Graphene and graphene oxide (GO) are two particularly promising nanomaterials for a range of applications including energy storage, catalysis, and separations. Understanding the nanoscale interactions between ions and water near graphene and GO surfaces is critical for advancing our fundamental knowledge of these systems and downstream application success. This minireview highlights the necessity of using surface-specific experimental probes and computational techniques to fully characterize these interfaces, including the nanomaterial, surrounding water, and any adsorbed ions, if present. Key experimental and simulation studies considering water and ion structures near both graphene and GO are discussed. The major findings are: water forms 1-3 hydration layers near graphene; ions adsorb electrostatically to graphene under an applied potential; the chemical and physical properties of GO vary considerably depending on the synthesis route; and these variations influence water and ion adsorption to GO. Lastly, we offer outlooks and perspectives for these research areas.
Collapse
Affiliation(s)
- Amanda J Carr
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA.
| | - Seung Eun Lee
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA.
| | - Ahmet Uysal
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA.
| |
Collapse
|
27
|
Acharya GR, Tyagi M, Mamontov E, Hoffmann PM. Diffusion Dynamics of Water and Ethanol in Graphene Oxide. J Phys Chem B 2023; 127:7384-7393. [PMID: 37556231 DOI: 10.1021/acs.jpcb.2c08960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
We utilized the momentum transfer (Q)-dependence of quasi-elastic neutron scattering (QENS) to measure the dynamics of water and ethanol confined in graphene oxide (GO) powder or membranes at different temperatures and in different orientations. We found reduced diffusivities (up to 30% in the case of water) and a depression of dynamic transition temperatures. While water showed near Arrhenius behavior with an almost bulk-like activation barrier in a temperature range of 280-310 K, the diffusivity of ethanol showed little temperature dependence. For both water and ethanol, we found evidence for immobile and mobile fractions of the confined liquid. The mobile fraction exhibited jump diffusion, with a jump length consistent with the expected average spacing of hydroxide groups in the GO surfaces. From anisotropy measurements, we found weak anisotropy in the diffusivity of the mobile species and in the fraction and geometry of immobile species.
Collapse
Affiliation(s)
- Gobin Raj Acharya
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, United States
| | - Madhusudan Tyagi
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, United States
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Eugene Mamontov
- Neutron Scattering Division, Oak Ridge National Laboratory, P.O. Box 2008 MS6473, Oak Ridge, Tennessee 37831, United States
| | - Peter M Hoffmann
- Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, United States
- Department of Physical Sciences, Embry-Riddle Aeronautical University, Daytona Beach, Florida 32114, United States
| |
Collapse
|
28
|
Tao W, Lan Y, Zhang J, Zhu L, Liu Q, Yang Y, Yang S, Tian G, Zhang S. Revealing the Chemical Nature of Functional Groups on Graphene Oxide by Integrating Potentiometric Titration and Ab Initio Calculations. ACS OMEGA 2023; 8:24332-24340. [PMID: 37457448 PMCID: PMC10339393 DOI: 10.1021/acsomega.3c01596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/29/2023] [Indexed: 07/18/2023]
Abstract
A new graphene oxide (GO) model with reasonable functional group types and distribution modes was proposed by integrating potentiometric titrations and ab initio calculations. Due to the complex synthesis mechanism, the atomic structure of GO has been controversial for a long time. Here, we use density functional theory calculations to mimic the oxidation process, and a series of GO fragments (GOFs) were deduced. A new pKa calculation method (RCDPKA) developed specifically in this work was further used to predict pKa values of the fragments. Then, we performed potentiometric titrations on four different GO samples to confirm the existence of these GOFs and determine the content of functional groups. Interestingly, different GO samples present the same pKa values in titration, and the results are consistent with the predicted ones. Based on the evidence from titration and calculation, prominent correlations between functional groups could be found. Groups at the edges are mainly double-interactive carboxyls (pKa1 ≈ 3.4, pKa2 ≈ 5.7) and double-adjacent phenolic hydroxyls (pKa1 ≈ 8.8, pKa2 ≈ 12.1), while groups on the plane are mainly collocated epoxies and hydroxyls (pKa1 ≈ 11.1, pKa2 ≈ 13.8) on both sides of the plane with a meta-positional hydrogen bond interaction. These findings were further validated by multiple characterizations and GO modifications. These results not only stimulate a fundamental understanding of the GO structure but also provide a quantitative analysis method for functional groups on GO.
Collapse
|
29
|
Patil JJ, Lu Z, Zachman MJ, Chen N, Reeves KS, Jana A, Revia G, MacDonald B, Keller BD, Lara-Curzio E, Grossman JC, Ferralis N. Chemical and Physical Drivers for Improvement in Permeance and Stability of Linker-Free Graphene Oxide Membranes. NANO LETTERS 2023. [PMID: 37399449 DOI: 10.1021/acs.nanolett.3c01087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Graphene oxide (GO) is a promising membrane material for chemical separations, including water treatment. However, GO has often required postsynthesis chemical modifications, such as linkers or intercalants, to improve either the permeability, performance, or mechanical integrity of GO membranes. In this work, we explore two different feedstocks of GO to investigate chemical and physical differences, where we observe up to a 100× discrepancy in the permeability-mass loading trade-off while maintaining nanofiltration capacity. GO membranes also show structural stability and chemical resilience to harsh pH conditions and bleach treatment. We probe GO and the resulting assembled membranes through a variety of characterization approaches, including a novel scanning-transmission-electron-microscopy-based visualization approach, to connect differences in sheet stacking and oxide functional groups to significant improvements in permeability and chemical stability.
Collapse
Affiliation(s)
- Jatin J Patil
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Zhengmao Lu
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Michael J Zachman
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37830, United States
| | - Ningxin Chen
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Kimberly S Reeves
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37830, United States
| | - Asmita Jana
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Griselda Revia
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Department of Materials, Oxford University, Parks Road, Oxford OX1 3PH, United Kingdom
| | - Brandon MacDonald
- Via Separations Inc, 165 Dexter Ave, Watertown, Massachusetts 02472, United States
| | - Brent D Keller
- Via Separations Inc, 165 Dexter Ave, Watertown, Massachusetts 02472, United States
| | - Edgar Lara-Curzio
- Energy Science & Technology Directorate, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37830, United States
| | - Jeffrey C Grossman
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- Via Separations Inc, 165 Dexter Ave, Watertown, Massachusetts 02472, United States
| | - Nicola Ferralis
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
30
|
Moghadam F, Zhai M, Zouaoui T, Li K. Hybrid graphene oxide membranes with regulated water and ion permeation channels via functional materials. Curr Opin Chem Eng 2023. [DOI: 10.1016/j.coche.2023.100907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
|
31
|
Shrestha A, Sumiya Y, Okazawa K, Uwabe T, Yoshizawa K. Molecular Understanding of Adhesion of Epoxy Resin to Graphene and Graphene Oxide Surfaces in Terms of Orbital Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5514-5526. [PMID: 37027214 DOI: 10.1021/acs.langmuir.3c00262] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The adhesion mechanism of epoxy resin (ER) cured material consisting of diglycidyl ether of bisphenol A (DGEBA) and 4,4'-diaminodiphenyl sulfone (DDS) to pristine graphene and graphene oxide (GO) surfaces is investigated on the basis of first-principles density functional theory (DFT) with dispersion correction. Graphene is often used as a reinforcing filler incorporated into ER polymer matrices. The adhesion strength is significantly improved by using GO obtained by the oxidation of graphene. The interfacial interactions at the ER/graphene and ER/GO interfaces were analyzed to clarify the origin of this adhesion. The contribution of dispersion interaction to the adhesive stress at the two interfaces is almost identical. In contrast, the DFT energy contribution is found to be more significant at the ER/GO interface. Crystal orbital Hamiltonian population (COHP) analysis suggests the existence of hydrogen bonding (H-bonding) between the hydroxyl, epoxide, amine, and sulfonyl groups of the ER cured with DDS and the hydroxyl groups of the GO surface, in addition to the OH-π interaction between the benzene rings of ER and the hydroxyl groups of the GO surface. The H-bond has a large orbital interaction energy, which is found to contribute significantly to the adhesive strength at the ER/GO interface. The overall interaction at the ER/graphene is much weaker due to antibonding type interactions just below the Fermi level. This finding indicates that only dispersion interaction is significant when ER is adsorbed on the graphene surface.
Collapse
Affiliation(s)
- Amit Shrestha
- Institute for Material Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yosuke Sumiya
- Institute for Material Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazuki Okazawa
- Institute for Material Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahiro Uwabe
- Institute for Material Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Material Chemistry and Engineering and IRCCS, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
32
|
Ratova DMV, Mikheev IV, Chermashentsev GR, Maslakov KI, Kottsov SY, Stolbov DN, Maksimov SV, Sozarukova MM, Proskurnina EV, Proskurnin MA. Green and Sustainable Ultrasound-Assisted Anodic Electrochemical Preparation of Graphene Oxide Dispersions and Their Antioxidant Properties. Molecules 2023; 28:molecules28073238. [PMID: 37050001 PMCID: PMC10096744 DOI: 10.3390/molecules28073238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023] Open
Abstract
A fast method for preparing aqueous graphene oxide (GO) dispersions by electrochemical oxidation of a graphite anode without preliminary intercalation with oxidizing agents is proposed. Ultrasonic probing was used in the modulation mode of ultrasonic waves (work/rest) for more efficient graphite oxidation-exfoliation. It is shown that the 4/2 s mode of ultrasonic modulation is the most effective due to the probe material's low corrosion while maintaining the optimum synthesis temperature not exceeding 30-35 °C and achieving the best characteristics of the resulting product. Three cases of anodic oxidation of graphite to obtain graphene oxide were considered: (1) a combined cathode-anode compartment, (2) a split cathode-anode salt-bridged compartment, and (3) separated anode compartment with a 3.5 kDa dialysis membrane. It was determined that the approach to synthesis with a divided cathode-anode compartment makes it possible to obtain GO sheets with fewer defects compared to chemical methods or methods with a combined cathode-anode compartment and makes it possible to control the oxidation degree of the material (C:O ratio) by varying the current density. The prepared samples showed good stability for more than six months. The spectral and morphological characteristics were studied. Using chemiluminometry in the luminol/Co(II)/H2O2 system, the antioxidant properties concerning three key reactive oxygen species (H2O2, superoxide anion radical, and hydroxyl radical) were demonstrated. It was also shown that the prepared GO dispersions do not induce lipid and phospholipid peroxidation.
Collapse
Affiliation(s)
- Daria-Maria V Ratova
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Ivan V Mikheev
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Grigoryi R Chermashentsev
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Konstantin I Maslakov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Sergei Yu Kottsov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 117901 Moscow, Russia
| | - Dmitrii N Stolbov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Sergey V Maksimov
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Madina M Sozarukova
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 117901 Moscow, Russia
| | - Elena V Proskurnina
- Laboratory of Molecular Biology, Research Centre for Medical Genetics, 1 Moskvorechye St., 115522 Moscow, Russia
| | - Mikhail A Proskurnin
- Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| |
Collapse
|
33
|
From nanohole to ultralong straight nanochannel fabrication in graphene oxide with swift heavy ions. Nat Commun 2023; 14:889. [PMID: 36797230 PMCID: PMC9935919 DOI: 10.1038/s41467-023-36357-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 01/27/2023] [Indexed: 02/18/2023] Open
Abstract
Porous architectures based on graphene oxide with precisely tailored nm-sized pores are attractive for biofluidic applications such as molecular sieving, DNA sequencing, and recognition-based sensing. However, the existing pore fabrication methods are complex, suffer from insufficient control over the pore density and uniformity, or are not scalable to large areas. Notably, creating vertical pores in multilayer films appears to be particularly difficult. Here, we show that uniform 6-7 nm-sized holes and straight, vertical nanochannels can be formed by simply irradiating graphene oxide (GO) films with high-energy heavy ions. Long penetration depths of energetic ions in combination with localized energy deposition and effective self-etching processes enable the creation of through pores even in 10 µm-thick GO films. This fully scalable fabrication provides a promising possibility for obtaining innovative GO track membranes.
Collapse
|
34
|
Pinto AV, Ferreira P, Fernandes PA, Magalhães AL, Ramos MJ. Development of Nanoscale Graphene Oxide Models for the Adsorption of Biological Molecules. J Phys Chem B 2023; 127:557-566. [PMID: 36282235 DOI: 10.1021/acs.jpcb.2c06037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Graphene oxide (GO), a nanomaterial with promising applications that range from water purification to enzyme immobilization, is actively present in scientific research since its discovery. GO studies with computational methodologies such as molecular dynamics are frequently reported in the literature; however, the models used often rely on approximations, such as randomly placing functional groups and the use of generalized force fields. Therefore, it is important to develop new MD models that provide a more accurate description of GO structures and their interaction with an aqueous solvent and other adsorbate molecules. In this paper, we derived new force field non-bonded parameters from linear-scaling density functional theory calculations of nanoscale GO sheets with more than 10,000 atoms through an atoms-in-molecules (AIM) partitioning scheme. The resulting GAFF2-AIM force field, derived from the bonded terms of GAFF2 parameterization, reproduces the solvent structure reported in ab initio MD simulations better than the force field nowadays widely used in the literature. Additionally, we analyzed the effect of the ionic strength of the medium and of the C/O ratio on the distribution of charges surrounding the GO sheets. Finally, we simulated the adsorption of natural amino acid molecules to a GO sheet and estimated their free energy of binding, which compared very favorably to their respective experimental values, validating the force field presented in this work.
Collapse
Affiliation(s)
- Alexandre V Pinto
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Pedro Ferreira
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Pedro A Fernandes
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Alexandre L Magalhães
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Maria J Ramos
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| |
Collapse
|
35
|
Carr AJ, Lee SE, Kumal RR, Bu W, Uysal A. Convenient Confinement: Interplay of Solution Conditions and Graphene Oxide Film Structure on Rare Earth Separations. ACS APPLIED MATERIALS & INTERFACES 2022; 14:57133-57143. [PMID: 36533427 DOI: 10.1021/acsami.2c16156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Graphene oxide (GO) membranes are excellent candidates for a range of separation applications, including rare earth segregation and radionuclide decontamination. Understanding nanoscale water and ion behavior near interfacial GO is critical for groundbreaking membrane advances, including improved selectivity and permeability. We experimentally examine the impact of solution conditions on water and lanthanide interactions with interfacial GO films and connect these results to GO membrane performance. The investigation of the confined films at the air-water interface with a combination of surface-specific spectroscopy and X-ray scattering techniques allows us to understand water and ion behaviors separately. Sum frequency generation spectroscopy reveals a dramatic change in interfacial water organization because of graphene oxide film deprotonation. Interfacial X-ray fluorescence measurements show a 17× increase in adsorbed lanthanide to the GO film from subphase pH 3 to pH 9. Liquid surface X-ray reflectivity data show an additional 2.7 e- per Å2 for GO films at pH 9 versus pH 3 as well. These results are connected to GO membrane performance, which show increased selectivity and decreased flux for membranes filtering pH 9 solutions. We posit insoluble lanthanide hydroxides form at higher pHs. Taken together, these results highlight the importance of interfacial experiments on model GO systems.
Collapse
Affiliation(s)
- Amanda J Carr
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Seung Eun Lee
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Raju R Kumal
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Wei Bu
- NSF's ChemMatCARS, The University of Chicago, Chicago, Illinois60637, United States
| | - Ahmet Uysal
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois60439, United States
| |
Collapse
|
36
|
Costinas C, Salagean CA, Cotet LC, Baia M, Todea M, Magyari K, Baia L. Insights into the Stability of Graphene Oxide Aqueous Dispersions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4489. [PMID: 36558342 PMCID: PMC9785193 DOI: 10.3390/nano12244489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Understanding graphene oxide's stability (or lack thereof) in liquid solvents is critical for fine-tuning the material's characteristics and its potential involvement in future applications. In this work, through the use of structural and surface investigations, the alteration of the structural and edge-surface properties of 2D graphene oxide nanosheets was monitored over a period of eight weeks by involving DLS, zeta potential, XRD, XPS, Raman and FT-IR spectroscopy techniques. The samples were synthesized as an aqueous suspension by an original modified Marcano-Tour method centred on the sono-chemical exfoliation of graphite. Based on the acquired experimental results and the available literature, a phenomenological explanation of the two underlying mechanisms responsible for the meta-stability of graphene oxide aqueous dispersions is proposed. It is based on the cleavage of the carbon bonds in the first 3-4 weeks, while the bonding of oxygen functional groups on the carbon lattice occurs, and the transformation of epoxide and hydroxyl groups into adsorbed water molecules in a process driven by the availability of hydrogen in graphene oxide nanosheets.
Collapse
Affiliation(s)
- Codrut Costinas
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
| | - Catalin Alexandru Salagean
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
| | - Liviu Cosmin Cotet
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
- Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Arany Janos 11, RO-400028 Cluj-Napoca, Romania
| | - Monica Baia
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
| | - Milica Todea
- Nanostructured Materials and Bio-Nano-Interfaces Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
- Faculty of Medicine, Iuliu Hațieganu University of Medicine and Pharmacy, Victor Babeș 8, RO-400012 Cluj-Napoca, Romania
| | - Klara Magyari
- Nanostructured Materials and Bio-Nano-Interfaces Centre, Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, Treboniu Laurian 42, RO-400271 Cluj-Napoca, Romania
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. Sqr. 1, 6720 Szeged, Hungary
| | - Lucian Baia
- Faculty of Physics, Babeș-Bolyai University, M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
- Laboratory for Advanced Materials and Applied Technologies, Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Fântânele 30, RO-400294 Cluj-Napoca, Romania
| |
Collapse
|
37
|
Paniagua-Guerra LE, Terrones M, Ramos-Alvarado B. Effects of Moisture and Synthesis-Derived Contaminants on the Mechanical Properties of Graphene Oxide: A Molecular Dynamics Investigation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54924-54935. [PMID: 36459097 DOI: 10.1021/acsami.2c16161] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This paper reports on the effects of the chemical composition of graphene oxide (GO) sheets on the mechanical properties of bulk GO. Three key factors were analyzed: (i) the oxygenated functional groups' concentration, (ii) the content of intersheet water (moisture), and (iii) the presence of residual contaminants observed from the synthesis of GO. Molecular dynamics simulations using the reactive force field ReaxFF were conducted to model tensile strength, indentation, and shear stress tests. The structural integrity of the carbon basal plane was the primary variable that determined mechanical behavior of GO slabs. Hydrogen-bond networks played an essential role in the tensile fracture mechanism, delaying the onset of fracture whenever strong hydrogen bonds existed in the intersheet space. The presence of interlayer sulfate ion contaminants negatively impacted the tensile strength, stiffness, and toughness of GO. Moreover, it was observed that intersheet sulfate ions improved the resistance to fracture of GO at low sulfur concentrations, while lower fracture strains were observed beyond a critical concentration. Alike the tensile stress findings, the indentation properties were determined by the integrity of the carbon basal plane. Our findings agree with experimental mechanical property measurements and reveal the importance of considering synthesis-derived contaminants in molecular models of GO.
Collapse
Affiliation(s)
- Luis E Paniagua-Guerra
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Mauricio Terrones
- Department of Physics, Department of Chemistry, Department of Material Science and Engineering and Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, Pennsylvania16802, United States
- Research Initiative for Supra-Materials, Shinshu University, Nagano380-8553, Japan
| | - Bladimir Ramos-Alvarado
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
| |
Collapse
|
38
|
Li Z, Xiao H, Li J, Yang Z, Jiang J, Ji J, Peng C, He Y. Graphene Oxide-Based Highly Sensitive Assay of Circulating MicroRNAs for Early Prediction of the Response to Neoadjuvant Chemotherapy in Breast Cancer. Anal Chem 2022; 94:16254-16264. [DOI: 10.1021/acs.analchem.2c04117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhijia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hongtao Xiao
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital affiliated to School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Junjie Li
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital affiliated to School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Zhongzhu Yang
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jun Jiang
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital affiliated to School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Juan Ji
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Cancer Hospital affiliated to School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yang He
- State Key Laboratory of Southwestern Chinese Medicine Resources, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| |
Collapse
|
39
|
The Role of Oxidation Pattern and Water Content in the Spatial Arrangement and Dynamics of Oxidized Graphene-Based Aqueous Dispersions. Int J Mol Sci 2022; 23:ijms232113459. [DOI: 10.3390/ijms232113459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
In this work, we employ fully atomistic molecular dynamics simulations to elucidate the effects of the oxidation pattern and of the water content on the organization of graphene sheets in aqueous dispersions and on the dynamic properties of the different moieties at neutral pH conditions. Analysis of the results reveals the role of the oxidation motif (peripherally or fully oxidized flakes) in the tendency of the flakes to self-assemble and in the control of key structural characteristics, such as the interlayer distance between the sheets and the average size and the distribution of the formed aggregates. In certain cases, the results are compared to a pertinent experimental system, validating further the relevant computational models. Examination of the diffusional motion of the oxidized flakes shows that different degrees of spatial restriction are imposed upon the decrease in the water content and elucidates the conditions under which a motional arrest of the flakes takes place. At constant water content, the structural differences between the formed aggregates appear to additionally impart distinct diffusional characteristics of a water molecule. A detailed examination of the counterion dynamics describes their interaction with the oxidized flakes and their dependence on the water content and on the oxidation pattern, offering new insight into the expected electrical properties of the dispersions. The detailed information provided by this work will be particularly useful in applications such as molecular sieving, nanofiltration, and in cases where conductive membranes based on oxidized forms of graphene are used.
Collapse
|
40
|
Menezes IR, Sakai T, Hattori Y, Kaneko K. Effect of preheating temperature on adsorption of N2 and Ar on graphene oxide. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
41
|
Abbasi S, Naimi-Jamal MR, Javanshir S, Heydari A. Photocatalytic aerobic oxidative functionalization (PAOF) reaction of benzyl alcohols by GO-MIL-100(Fe) composite in glycerol/K 2CO 3 deep eutectic solvent. Sci Rep 2022; 12:18214. [PMID: 36309549 PMCID: PMC9617864 DOI: 10.1038/s41598-022-22369-9] [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: 08/16/2022] [Accepted: 10/13/2022] [Indexed: 11/09/2022] Open
Abstract
An MIL-100 (Fe)/graphene oxide (GO) hybrid, a fairly-known composite, was made through a simple one-step procedure and played a highlighted role in the photo-induced oxidative functionalization of the benzylic C–H bond. To identify the given binary composite, various techniques were applied: FT-IR, P-XRD, SEM, nitrogen absorption–desorption analysis, TGA, TEM, and UV–Visible DRS spectra. Proportions of GO used within the structure of the prepared composite differently ranged from low to high amount, and the most optimized ratio met at 38.5% of GO as the most efficient catalyst. Additionally, the reaction ran in Glycerol/K2CO3 (2:1) as the optimal solvent. The elemental roles of O2·− and OH− were supposed to be the major ones for running a tandem oxidation-Knoevenagel reaction. The heterogeneity and reusability of the catalyst were also examined and confirmed after five successive runs.
Collapse
Affiliation(s)
- Sepideh Abbasi
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology (IUST), Tehran, 16846-13114, Iran
| | - Mohammad Reza Naimi-Jamal
- Research Laboratory of Green Organic Synthesis and Polymers, Department of Chemistry, Iran University of Science and Technology (IUST), Tehran, 16846-13114, Iran.
| | - Shahrzad Javanshir
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Akbar Heydari
- Chemistry Department, Tarbiat Modares University, Tehran, 14155-4838, Iran
| |
Collapse
|
42
|
Understanding water transport through graphene-based nanochannels via experimental control of slip length. Nat Commun 2022; 13:5690. [PMID: 36171227 PMCID: PMC9519754 DOI: 10.1038/s41467-022-33456-w] [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: 04/05/2022] [Accepted: 09/15/2022] [Indexed: 11/08/2022] Open
Abstract
The water transport along graphene-based nanochannels has gained significant interest. However, experimental access to the influence of defects and impurities on transport poses a critical knowledge gap. Here, we investigate the water transport of cation intercalated graphene oxide membranes. The cations act as water-attracting impurities on the channel walls. Via water transport experiments, we show that the slip length of the nanochannels decay exponentially with the hydrated diameter of the intercalated cations, confirming that water transport is governed by the interaction between water molecules and the impurities on the channel wall. The exponential decay of slip length approximates non-slip conditions. This offers experimental support for the use of the Hagen-Poiseuille equation in graphene-based nanochannels, which was previously only confirmed by simulations. Our study gives valuable feedback to theoretical predictions of the water transport along graphene-based channels with water-attracting impurities.
Collapse
|
43
|
Chitosan-Gelatin Films: Plasticizers/Nanofillers Affect Chain Interactions and Material Properties in Different Ways. Polymers (Basel) 2022; 14:polym14183797. [PMID: 36145942 PMCID: PMC9505206 DOI: 10.3390/polym14183797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Biopolymers, which are biodegradable and inherently functional, have high potential for specialized applications (e.g., disposable and transient systems and biomedical treatment). For this, it is important to create composite materials with precisely defined chain interactions and tailored properties. This work shows that for a chitosan–gelatin material, both glycerol and isosorbide are effective plasticizers, but isosorbide could additionally disrupt the polyelectrolyte complexation (PEC) between the two biopolymers, which greatly impacts the glass transition temperature (Tg), mechanical properties, and water absorption. While glycerol-plasticized samples without nanofiller or with graphene oxide (GO) showed minimal water uptake, the addition of isosorbide and/or montmorillonite (MMT) made the materials hydrolytically unstable, likely due to disrupted PEC. However, these samples showed an opposite trend in surface hydrophilicity, which means surface chemistry is controlled differently from chain structure. This work highlights different mechanisms that control the different properties of dual-biopolymer systems and provides an updated definition of biopolymer plasticization, and thus could provide important knowledge for the future design of biopolymer composite materials with tailored surface hydrophilicity, overall hygroscopicity, and mechanical properties that meet specific application needs.
Collapse
|
44
|
Rodríguez-Pastor I, López-Pérez A, Romero-Sánchez MD, Pérez JM, Fernández I, Martin-Gullon I. Effective Method for a Graphene Oxide with Impressive Selectivity in Carboxyl Groups. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3112. [PMID: 36144900 PMCID: PMC9500783 DOI: 10.3390/nano12183112] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
The development of new applications of graphene oxide in the biomedical field requires the covalent bonding of bioactive molecules to a sheet skeleton. Obtaining a large carboxyl group population over the surface is one of the main targets, as carboxyl group concentration in conventional graphene oxide is low among a majority of non-useful sp3-C-based functionalities. In the present work, we propose a selective method that yields an impressive increase in carboxyl group population using single-layer, thermally reduced graphene oxide as a precursor in a conventional Hummers-Offemann reaction. When starting with a reduced graphene oxide with no interlayer registry, sulfuric acid cannot form a graphite intercalated compound. Then, potassium permanganate attacks in in-plane (vacancies or holes) structural defects, which are numerous over a thermally reduced graphene oxide, as well as in edges, yielding majorly carboxyl groups without sheet cutting and unzipping, as no carbon dot formation was observed. A single-layer precursor with no ordered stacking prevents the formation of an intercalated compound, and it is this mechanism of the potassium permanganate that results in carboxyl group formation and the hydrophilic character of the compound.
Collapse
Affiliation(s)
- Iluminada Rodríguez-Pastor
- Applynano Solutions S.L., Alicante Scientific Park #3, 03690 Alicante, Spain
- Institute of Chemical Processes Engineering, University of Alicante, 03080 Alicante, Spain
| | - Adelia López-Pérez
- Applynano Solutions S.L., Alicante Scientific Park #3, 03690 Alicante, Spain
| | | | - Juana M. Pérez
- Research Centre CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - Ignacio Fernández
- Research Centre CIAIMBITAL, University of Almería, 04120 Almería, Spain
| | - Ignacio Martin-Gullon
- Institute of Chemical Processes Engineering, University of Alicante, 03080 Alicante, Spain
| |
Collapse
|
45
|
Wang Q, Qu Z, Zhang X, Chen L. Electronic-Level Insight into Interfacial Effects and Their Induced Anisotropic Ion Diffusion and Ion Selectivity in Nanochannels. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37608-37619. [PMID: 35917159 DOI: 10.1021/acsami.2c06687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Osmotic energy conversion features directional ion migration in selective nanochannels, dominated by interfacial effects, temperature, and concentration. Current efforts emphasize membrane modification for superior reliability and durability, whereas the origin and implication of interfacial effects are unclear. This work performs ab initio molecular dynamics simulations for hydrated ion-graphene oxide interfaces by regulating the temperature and concentration. The interfacial effects associated with their induced anisotropic ion diffusion and ion selectivity are revealed. The scientific essence of the interfacial effects is an electron transfer triggered by hydrated ion-functional group interactions. The interfacial effects are clarified to include dynamic solvation structures, interfacial H-bonds, and chemical reactions. Ions possess incomplete hydration shells, and their arrangements vary from ordered to disordered to overlapped. Interfacial H-bonds restrict hydrated ions by constraining water molecules, whereas continuous reactions provide lateral pathways to generate anisotropy. Cation selectivity is further clarified by negative surface charges from hydroxyl deprotonation. Besides, temperature rise induces disordered hydrated ions as well as frequent and violent reactions, enhancing ion diffusion, selectivity, and anisotropy; excessive concentrations produce overlapped hydrated ions, more H-bonds, and inferior reactions, weakening ion diffusion, selectivity, and anisotropy. Finally, the bottom-up concept for osmotic energy conversion is summarized, and elevated temperature combined with low concentration is found to boost ion diffusion and ion selectivity synergistically. This work provides an in-depth understanding of interfacial phenomena and ion behaviors in nanochannels.
Collapse
Affiliation(s)
- Qiang Wang
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhiguo Qu
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xu Zhang
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Liang Chen
- MOE Key Laboratory of Thermal-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| |
Collapse
|
46
|
Sun J, Jiang S, Zhao Y, Wang H, Zhai D, Deng W, Sun L. First-principles study of CO 2 hydrogenation to formic acid on single-atom catalysts supported on SiO 2. Phys Chem Chem Phys 2022; 24:19938-19947. [PMID: 35968889 DOI: 10.1039/d2cp02225g] [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
The hydrogenation of CO2 into valuable chemical fuels reduces the atmospheric CO2 content and also has broad economic prospects. Support is essential for catalysts, but many of the reported support materials cannot meet the requirements of accessibility and durability. Herein, we theoretically designed a series of single-atom noble metals anchored on a SiO2 surface for CO2 hydrogenation using density functional theory (DFT) calculations. Through theoretical evaluation of the formation energy, hydrogen dissociation capacity, and activity of CO2 hydrogenation, we found that Ru@SiO2 is a promising candidate for CO2 hydrogenation to formic acid. The energy barrier of the rate-determining step of the entire conversion process is 23.9 kcal mol-1; thus, the reaction can occur under mild conditions. In addition, active and stable origins were revealed through electronic structure analysis. The charge of the metal atom is a good descriptor of the catalytic activity. The Pearson correlation coefficient (PCC) between metal charge and its CO2 hydrogenation barrier is 0.99. Two solvent models were also used to investigate hydrogen spillover processes and the reaction path was searched by the climbing image nudged-elastic-band (CI-NEB) method. The results indicated that the explicit solvent model could not be simplified into a few solvent molecules, leading to a large difference in the reaction paths. This work will serve as a reference for the future design of more efficient catalysts for CO2 hydrogenation.
Collapse
Affiliation(s)
- Jikai Sun
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| | - Shuchao Jiang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| | - Yanliang Zhao
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| | - Honglei Wang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| | - Dong Zhai
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| | - Weiqiao Deng
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China. .,State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Lei Sun
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China.
| |
Collapse
|
47
|
Multilayered graphene oxide membranes for bioethanol purification: Microscopic insight from molecular simulation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
48
|
Islam MS, Renner F, Foster K, Oderinde MS, Stefanski K, Mitra S. Enhanced aqueous dissolution of hydrophobic apixaban via direct incorporation of hydrophilic nanographene oxide. Colloids Surf B Biointerfaces 2022; 216:112512. [PMID: 35533561 DOI: 10.1016/j.colsurfb.2022.112512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/13/2022] [Accepted: 04/19/2022] [Indexed: 11/19/2022]
Abstract
In this study, we have directly incorporated nanographene oxide (nGO) into a hydrophobic drug for enhanced dissolution performance through an antisolvent technique. Apixaban (APX) drug composites were synthesized with nGO incorporation ranging from 0.8% to 2.0% concentration. It was observed that the nGO was successfully embedded without any changes to the original drug crystal structure or physical properties. Dissolution of the drug composites was evaluated using US Pharmacopeia Paddle Method (USP 42). The time needed to reach a 50% release (T50) reduced from 106 min to 24 min with the integration of 1.96% nGO in APX and the T80 also dropped accordingly. Alternatively, dissolution rate showed promising performance with increase in nGO concentration. Initial dissolution rate increased dramatically from 74 µg/min to 540 µg/min. Further, work done in intestinal media revealed T50 went from not dissolving to 79.0 min. Decreased lipophilicity or logP value and increased aqueous solubility are both accredited to hydrophilic nGO water dispersion, producing a hydrophilic channel into the drug crystal surfaces through intermolecular interaction. Additionally, physical, and chemical characterizations confirm that hydrophobic apixaban was successfully transformed into a hydrophilic composite, showing potential for this technology to improve dissolution rate of a model hydrophobic compound.
Collapse
Affiliation(s)
- Mohammad Saiful Islam
- Department of Chemistry and Environmental science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Faradae Renner
- Department of Chemistry and Environmental science, New Jersey Institute of Technology, Newark, NJ, 07102, USA; Bristol Myers Squibb Research and Early Development, Princeton, NJ 08543, USA
| | - Kimberly Foster
- Bristol Myers Squibb Research and Early Development, Princeton, NJ 08543, USA
| | - Martins S Oderinde
- Bristol Myers Squibb Research and Early Development, Princeton, NJ 08543, USA
| | - Kevin Stefanski
- Bristol Myers Squibb Research and Early Development, Princeton, NJ 08543, USA
| | - Somenath Mitra
- Department of Chemistry and Environmental science, New Jersey Institute of Technology, Newark, NJ, 07102, USA.
| |
Collapse
|
49
|
Han J, Lin KT, Lin H, Lau KT, Jia B. Tunable Thermochromic Graphene Metamaterials with Iridescent Color. NANO LETTERS 2022; 22:6026-6033. [PMID: 35639615 DOI: 10.1021/acs.nanolett.1c04768] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Thermochromic materials have been widely applied in energy-efficient buildings, aerospace, textiles, and sensors. Conventional thermochromic materials rely on material phase or structure changes upon thermal stimuli, which only enable a few colors, greatly limiting their applicability. Here, we propose and demonstrate the concept of dynamically tunable thermochromic graphene metamaterials (TGMs), which can achieve continuous color tunability (380-800 nm) with fast (<100 ms) response times. The TGMs are composed of an ultrathin graphene oxide (GO) film on a flexible metal substrate. We demonstrated that external thermal energy can dynamically adjust the water contents in the GO film to manipulate the color of TGMs. An impressive thermochromic sensitivity of 1.11 nm/°C covering a large percentage of the color space has been achieved. Prototype applications for a cup and smartphone have been demonstrated. The reversible TGMs promise great potential for practical applications of temperature sensing in optoelectronic devices, environmental monitoring, and dynamic color modulation.
Collapse
Affiliation(s)
- Jihong Han
- Centre for Translational Atomaterials, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Keng-Te Lin
- Centre for Translational Atomaterials, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Han Lin
- Centre for Translational Atomaterials, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Kin-Tak Lau
- Centre for Translational Atomaterials, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
- The Australian Research Council (ARC) Industrial Transformation Training, Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| |
Collapse
|
50
|
The role of surface ionisation in the hydration-induced swelling of graphene oxide membranes. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|