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Jeevanandham G, Vediappan K, ALOthman ZA, Altalhi T, Sundramoorthy AK. Fabrication of 2D-MoSe 2 incorporated NiO Nanorods modified electrode for selective detection of glucose in serum samples. Sci Rep 2021; 11:13266. [PMID: 34168234 PMCID: PMC8225789 DOI: 10.1038/s41598-021-92620-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 06/08/2021] [Indexed: 12/04/2022] Open
Abstract
Layered molybdenum diselenide (MoSe2) nanosheets were formed by the weak Van der Waals forces of attraction between Se and Mo atoms. MoSe2 has a larger space between the adjacent layers and smaller band gaps in the range of 0.85 to ~ 1.6 eV. In this study, MoSe2 nanosheets decorated nickel oxide (NiO) nanorods have been synthesized by hydrothermal method using sodium molybdate and selenium metal powder. NiO/MoSe2 composite formation was confirmed by powder X-ray diffraction analysis. In addition, the presence of MoSe2 nanosheets on NiO nanorods were confirmed by field emission scanning electron microscopy, high-resolution transmission electron microscopy and X-ray photoelectron spectroscopy. The Nyquist plots of NiO/MoSe2 coated glassy carbon electrode (GCE) was indicated that it had lower charge transfer resistance compared to NiO/GCE and MoSe2/GCE. Furthermore, as-prepared NiO/MoSe2/GCE was used to detect glucose in alkaline solution by cyclic voltammetry and amperometry techniques. The NiO/MoSe2/GCE was exhibited a linear response for the oxidation of glucose from 50 µM to 15.5 mM (R2 = 0.9842) at 0.5 V by amperometry. The sensor response time and the limit of detection were found to be 2 s and 0.6 µM for glucose. Moreover, selectivity of the NiO/MoSe2 sensor was tested in the presence of common interferent molecules such as hydrogen peroxide, fructose, lactose, ascorbic acid, uric acid, and dopamine. It was found that NiO/MoSe2/GCE did not respond to these interfering biomolecules. In addition, NiO/MoSe2/GCE had shown high stability, reproducibility and repeatability. Finally, the practical application of the sensor was demonstrated by detecting glucose in human blood serum with the acceptable recovery.
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Affiliation(s)
- Gayathri Jeevanandham
- Department of Chemistry, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Kumaran Vediappan
- Department of Chemistry, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Zeid A ALOthman
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Tariq Altalhi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Ashok K Sundramoorthy
- Department of Chemistry, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603203, India.
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Li H, Hao X, Gong H, Jin Z, Zhao T. Efficient hydrogen production at a rationally designed MoSe 2@Co 3O 4 p-n heterojunction. J Colloid Interface Sci 2021; 586:84-94. [PMID: 33162036 DOI: 10.1016/j.jcis.2020.10.072] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 01/18/2023]
Abstract
During the past several years, transition metal compounds have shown high activity in the field of photocatalysis. Therefore, the MoSe2@Co3O4 with excellent photocatalytic properties through simple hydrothermal and physical mixing methods was prepared. This composite material was composed of n-type semiconductor MoSe2 and p-type semiconductor Co3O4. After optimizing the loading of Co3O4, the optimal hydrogen production can reached 7029.2 μmol g-1h-1, which was 2.34 times that of single MoSe2. In addition, some characterization methods were used to explore the hydrogen production performance of the composite catalyst under EY sensitized conditions. Among them, the UV-vis diffuse reflectance spectra suggests that MoSe2@Co3O4 exhibits stronger visible light absorption performance than the single material. Fluorescence performance and photoelectrochemical characterization experiments further prove that, the special structure formed by MoSe2 and Co3O4 and the existence of p-n heterojunction effectively accelerate the separation and transfer of carriers meanwhile inhibit the recombination probability of electron-hole pairs. Combined with other characterizations such as XRD, XPS, SEM and BET, the possible hydrogen production mechanism was proposed.
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Affiliation(s)
- Hongying Li
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China
| | - Xuqiang Hao
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China
| | - Haiming Gong
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China
| | - Zhiliang Jin
- School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China; Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China.
| | - Tiansheng Zhao
- Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, PR China.
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Mao S, Elshekh H, Kadhim MS, Xia Y, Fu G, Hou W, Zhao Y, Sun B. An excellent resistive switching memory behaviour based on assembled MoSe2 nanosphere arrays. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.120975] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Li H, Peng Z, Qian J, Wang M, Wang C, Fu X. C Fibers@WSe 2 Nanoplates Core-Shell Composite: Highly Efficient Solar-Driven Photocatalyst. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28704-28715. [PMID: 28800215 DOI: 10.1021/acsami.7b10376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recently, WSe2 as a typical transition metal dichalcogenide compound has attracted extensive attention due to its potential applications in electronic and optoelectronic devices. However, WSe2 alone cannot be directly used as a photocatalyst due to its inferior performance possibly caused by the strong recombination of photogenerated electron-hole pairs. Here a novel C fibers@WSe2 nanoplates core-shell composite (NPCSC) was successfully synthesized via facile, one-step thermal evaporation, in which numerous WSe2 thin nanoplates were in situ, densely and even vertically grown on the surface of the C fibers. Such composite presents highly solar-driven photocatalytic activity and stability for the degradation of various organic aqueous dyes including methylene blue and rhodamine B, and highly harmful gases like toluene, showing the great potential for environmental remediation by degrading toxic industrial chemicals using sunlight. Under simulated sunlight irradiation, comparing with commercially available WSe2 powder, the as-synthesized C fibers@WSe2 NPCSC presents significantly enhanced reaction rate constants by a factor of approximately 15, 9, and 3 for the degradation of aqueous methylene blue, aqueous rhodamine B, and gaseous toluene, respectively, due to the effective separation of photogenerated electron-hole pairs promoted by the rapid transfer of photogenerated electrons through C fibers. Moreover, this one-step thermal evaporation is an easy-handling, environmentally friendly, and low-cost synthesis method, which is suitable for large-scale production.
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Affiliation(s)
- Hong Li
- School of Engineering and Technology, China University of Geosciences , Beijing 100083, P. R. China
- School of Science, China University of Geosciences , Beijing 100083, P. R. China
- State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, P. R. China
| | - Zhijian Peng
- School of Science, China University of Geosciences , Beijing 100083, P. R. China
| | - Jingwen Qian
- School of Engineering and Technology, China University of Geosciences , Beijing 100083, P. R. China
- School of Science, China University of Geosciences , Beijing 100083, P. R. China
- State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, P. R. China
| | - Meng Wang
- School of Engineering and Technology, China University of Geosciences , Beijing 100083, P. R. China
- School of Science, China University of Geosciences , Beijing 100083, P. R. China
- State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, P. R. China
| | - Chengbiao Wang
- School of Engineering and Technology, China University of Geosciences , Beijing 100083, P. R. China
| | - Xiuli Fu
- State Key Laboratory of Information Photonics and Optical Communications, and School of Science, Beijing University of Posts and Telecommunications , Beijing 100876, P. R. China
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Colloidal 2D nanosheets of MoS 2 and other transition metal dichalcogenides through liquid-phase exfoliation. Adv Colloid Interface Sci 2017; 245:40-61. [PMID: 28477866 DOI: 10.1016/j.cis.2017.04.014] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 12/19/2022]
Abstract
This review focuses on the exfoliation of transition metal dichalcogenides MQ2 (TMD, M=Mo, W, etc., Q=S, Se, Te) in liquid media, leading to the formation of 2D nanosheets dispersed in colloids. Nowadays, colloidal dispersions of MoS2, MoSe2, WS2 and other related materials are considered for a wide range of applications, including electronic and optoelectronic devices, energy storage and conversion, sensors for gases, catalysts and catalyst supports, biomedicine, etc. We address various methods developed so far for transferring these materials from bulk to nanoscale thickness, and discuss their stabilization and factors influencing it. Long-time known exfoliation through Li intercalation has received renewed attention in recent years, and is recognized as a method yielding highest dispersed concentrations of single-layer MoS2 and related materials. Latest trends in the intercalation/exfoliation approach include electrochemical lithium intercalation, experimenting with various intercalating agents, multi-step intercalation, etc. On the other hand, direct sonication in solvents is a much simpler technique that allows one to avoid dangerous reagents, long reaction times and purifying steps. The influence of the solvent characteristics on the colloid formation was closely investigated in numerous recent studies. Moreover, it is being recognized that, besides solvent properties, sonication parameters and solvent transformations may affect the process in a crucial way. The latest data on the interaction of MoS2 with solvents evidence that not only solution thermodynamics should be employed to understand the formation and stabilization of such colloids, but also general and organic chemistry. It appears that due to the sonolysis of the solvents and cutting of the MoS2 layers in various directions, the reactive edges of the colloidal nanosheets may bear various functionalities, which participate in their stabilization in the colloidal state. In most cases, direct exfoliation of MQ2 into colloidal nanosheets is conducted in organic solvents, while a small amount of works report low-concentrated colloids in pure water. To improve the dispersion abilities of transition metal dichalcogenides in water, various stabilizers are often introduced into the reaction media, and their interactions with nanosheets play an important role in the stabilization of the dispersions. Surfactants, polymers and biomolecules usually interact with transition metal dichalcogenide nanosheets through non-covalent mechanisms, similarly to the cases of graphene and carbon nanotubes. Finally, we survey covalent chemical modification of colloidal MQ2 nanosheets, a special and different approach, consisting in the functionalization of MQ2 surfaces with help of thiol chemistry, interaction with electrophiles, or formation of inorganic coordination complexes. The intentional design of surface chemistry of the nanosheets is a very promising way to control their solubility, compatibility with other moieties and incorporation into hybrid structures. Although the scope of the present review is limited to transition metal dichalcogenides, the dispersion in colloids of other chalcogenides (such as NbS3, VS4, Mo2S3, etc.) in many ways follows similar trends. We conclude the review by discussing current challenges in the area of exfoliation of MoS2 and its related materials.
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Xie LM. Two-dimensional transition metal dichalcogenide alloys: preparation, characterization and applications. NANOSCALE 2015; 7:18392-18401. [PMID: 26508084 DOI: 10.1039/c5nr05712d] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Engineering electronic structure of atomically thin two-dimensional (2D) materials is of great importance to their potential applications. In comparison to numerous other approaches, such as strain and chemical functionization, alloying can continuously tune the band gaps in a wide energy range. Atomically thin 2D alloys have been prepared and studied recently due to their potential use in electronic and optoelectronic applications. In this review, we first summarize the preparation methods of 2D alloys (mainly on transition metal dichalcogenide (TMD) monolayer alloys), including mechanical exfoliation, physical vapor deposition (PVD), chemical vapor deposition (CVD) and chalcogen exchange. Then, atomic-resolution imaging, Raman and photoluminescence (PL) spectroscopy characterization of 2D alloys are reviewed, in which band gap tuning is discussed in detail based on the PL experiments and theoretical calculations. Finally, applications of 2D alloys in field-effect transistors (FETs), photocurrent generation and hydrogen evolution catalysis are reviewed.
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Affiliation(s)
- L M Xie
- Key Laboratory of Standardization and Measurement for Nanotechnology of Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.
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Liu Y, Tan C, Chou H, Nayak A, Wu D, Ghosh R, Chang HY, Hao Y, Wang X, Kim JS, Piner R, Ruoff RS, Akinwande D, Lai K. Thermal Oxidation of WSe2 Nanosheets Adhered on SiO2/Si Substrates. NANO LETTERS 2015; 15:4979-84. [PMID: 26171759 DOI: 10.1021/acs.nanolett.5b02069] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Because of the drastically different intralayer versus interlayer bonding strengths, the mechanical, thermal, and electrical properties of two-dimensional (2D) materials are highly anisotropic between the in-plane and out-of-plane directions. The structural anisotropy may also play a role in chemical reactions, such as oxidation, reduction, and etching. Here, the composition, structure, and electrical properties of mechanically exfoliated WSe2 nanosheets on SiO2/Si substrates were studied as a function of the extent of thermal oxidation. A major component of the oxidation, as indicated from optical and Raman data, starts from the nanosheet edges and propagates laterally toward the center. Partial oxidation also occurs in certain areas at the surface of the flakes, which are shown to be highly conductive by microwave impedance microscopy. Using secondary ion mass spectroscopy, we also observed extensive oxidation at the WSe2-SiO2 interface. The combination of multiple microcopy methods can thus provide vital information on the spatial evolution of chemical reactions on 2D materials and the nanoscale electrical properties of the reaction products.
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Affiliation(s)
- Yingnan Liu
- †Department of Physics, University of Texas at Austin, Austin, Texas 78712, United States
| | - Cheng Tan
- ‡Microelectronics Research Center, University of Texas at Austin, Austin, Texas 78758, United States
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Harry Chou
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Avinash Nayak
- ‡Microelectronics Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Di Wu
- †Department of Physics, University of Texas at Austin, Austin, Texas 78712, United States
| | - Rudresh Ghosh
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Hsiao-Yu Chang
- ‡Microelectronics Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Yufeng Hao
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Xiaohan Wang
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Joon-Seok Kim
- ‡Microelectronics Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Richard Piner
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
| | - Rodney S Ruoff
- §Department of Mechanical Engineering and the Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78712, United States
- ∥Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan 689-798, Republic of Korea
- ⊥Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - Deji Akinwande
- ‡Microelectronics Research Center, University of Texas at Austin, Austin, Texas 78758, United States
| | - Keji Lai
- †Department of Physics, University of Texas at Austin, Austin, Texas 78712, United States
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Fan C, Wei Z, Yang S, Li J. Synthesis of MoSe2flower-like nanostructures and their photo-responsive properties. RSC Adv 2014. [DOI: 10.1039/c3ra42564a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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