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Thi Yein W, Wang Q, Kim DS. Piezoelectric catalytic driven advanced oxidation process using two-dimensional metal dichalcogenides for wastewater pollutants remediation. Chemosphere 2024; 353:141524. [PMID: 38403122 DOI: 10.1016/j.chemosphere.2024.141524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/25/2024] [Accepted: 02/20/2024] [Indexed: 02/27/2024]
Abstract
The public and society have increasingly recognized numerous grave environmental issues, including water pollution, attributed to the rapid expansion of industrialization and agriculture. Renewable energy-driven catalytic advanced oxidation processes (AOPs) represent a green, sustainable, and environmentally friendly approach to meet the demands of environmental remediation. In this context, 2D transition metal dichalcogenides (TMDCs) piezoelectric materials, with their non-centrosymmetric crystal structure, exhibit unique features. They create dipole polarization, inducing a built-in electric field that generates polarized holes and electrons and triggers redox reactions, thereby facilitating the generation of reactive oxygen species for wastewater pollutant remediation. A broad spectrum of 2D TMDCs piezoelectric materials have been explored in self-integrated Fenton-like processes and persulfate activation processes. These materials offer a more simplistic and practical method than traditional approaches. Consequently, this review highlights recent advancements in 2D TMDCs piezoelectric catalysts and their roles in wastewater pollutant remediation through piezocatalytic-driven AOPs, such as Fenton-like processes and sulfate radicals-based oxidation processes.
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Affiliation(s)
- Win Thi Yein
- Department of Environmental Science and Engineering, Ewha Womans University, New 11-1, Daehyeon-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea; Department of Industrial Chemistry, University of Yangon, Republic of the Union of Myanmar, Myanmar
| | - Qun Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Dong-Su Kim
- Department of Environmental Science and Engineering, Ewha Womans University, New 11-1, Daehyeon-dong, Seodaemun-gu, Seoul, 120-750, Republic of Korea.
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Yoon H, Lee S, Seo J, Sohn I, Jun S, Hong S, Im S, Nam Y, Kim HJ, Lee Y, Chung SM, Kim H. Investigation on Contact Properties of 2D van der Waals Semimetallic 1T-TiS 2/MoS 2 Heterojunctions. ACS Appl Mater Interfaces 2024; 16:12095-12105. [PMID: 38384197 DOI: 10.1021/acsami.3c18982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Two-dimensional transition metal dichalcogenides (2D TMDCs) are considered promising alternatives to Si as channel materials because of the possibility of retaining their superior electronic transport properties even at atomic body thicknesses. However, the realization of high-performance 2D TMDC field-effect transistors remains a challenge owing to Fermi-level pinning (FLP) caused by gap states and the inherent high Schottky barrier height (SBH) within the metal contact and channel layer. This study demonstrates that high-quality van der Waals (vdW) heterojunction-based contacts can be formed by depositing semimetallic TiS2 onto monolayer (ML) MoS2. After confirming the successful formation of a TiS2/ML MoS2 heterojunction, the contact properties of vdW semimetal TiS2 were thoroughly investigated. With clean interfaces of the TiS2/ML MoS2 heterojunctions, atomic-layer-deposited TiS2 can induce gap-state saturation and suppress FLP. Consequently, compared with conventional evaporated metal electrodes, the TiS2/ML MoS2 heterojunctions exhibit a lower SBH of 8.54 meV and better contact properties. This, in turn, substantially improves the overall performance of the device, including its on-current, subthreshold swing, and threshold voltage. Furthermore, we believe that our proposed strategy for vdW-based contact formation will contribute to the development of 2D materials used in next-generation electronics.
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Affiliation(s)
- Hwi Yoon
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sangyoon Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jeongwoo Seo
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Inkyu Sohn
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sukhwan Jun
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sungjae Hong
- van der Waals Materials Research Center, Department of Physics, Yonsei University, Seoul 03722, Republic of Korea
| | - Seongil Im
- van der Waals Materials Research Center, Department of Physics, Yonsei University, Seoul 03722, Republic of Korea
| | - Yunyong Nam
- Samsung Display Co., Ltd, Yongin-si, Gyeonggi-do 17113, Republic of Korea
| | - Hyung-Jun Kim
- Samsung Display Co., Ltd, Yongin-si, Gyeonggi-do 17113, Republic of Korea
| | - Yujin Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Seung-Min Chung
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyungjun Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea
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Raghunathan M, Kapoor A, Mohammad A, Kumar P, Singh R, Tripathi SC, Muzammil K, Pal DB. Advances in two-dimensional transition metal dichalcogenides-based sensors for environmental, food, and biomedical analysis: A review. LUMINESCENCE 2024; 39:e4703. [PMID: 38433325 DOI: 10.1002/bio.4703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/10/2024] [Accepted: 02/06/2024] [Indexed: 03/05/2024]
Abstract
Transition metal dichalcogenides (TMDCs) are versatile two-dimensional (2D) nanomaterials used in biosensing applications due to their excellent physical and chemical properties. Due to biomaterial target properties, biosensors' most significant challenge is improving their sensitivity and stability. In environmental analysis, TMDCs have demonstrated exceptional pollutant detection and removal capabilities. Their high surface area, tunable electronic properties, and chemical reactivity make them ideal for sensors and adsorbents targeting various contaminants, including heavy metals, organic pollutants, and emerging contaminants. Furthermore, their unique electronic and optical properties enable sensitive detection techniques, enhancing our ability to monitor and mitigate environmental pollution. In the food analysis, TMDCs-based nanomaterials have shown remarkable potential in ensuring food safety and quality. These nanomaterials exhibit high specificity and sensitivity for detecting contaminants, pathogens, and adulterants in various food matrices. Their integration into sensor platforms enables rapid and on-site analysis, reducing the reliance on centralized laboratories and facilitating timely interventions in the food supply chain. In biomedical studies, TMDCs-based nanomaterials have demonstrated significant strides in diagnostic and therapeutic applications. Their biocompatibility, surface functionalization versatility, and photothermal properties have paved the way for novel disease detection, drug delivery, and targeted therapy approaches. Moreover, TMDCs-based nanomaterials have shown promise in imaging modalities, providing enhanced contrast and resolution for various medical imaging techniques. This article provides a comprehensive overview of 2D TMDCs-based biosensors, emphasizing the growing demand for advanced sensing technologies in environmental, food, and biomedical analysis.
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Affiliation(s)
- Muthukumar Raghunathan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
| | - Ashish Kapoor
- Department of Chemical Engineering, Harcourt Butler Technical University, Kanpur, Uttar Pradesh, India
| | - Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, Republic of Korea
| | - Praveen Kumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, India
| | - Rajeev Singh
- Department of Chemical Environmental Science, Jamia Millia Islamia, New Delhi, India
| | - Subhash C Tripathi
- Institute of Applied Sciences & Humanities, Department of Chemistry, GLA University, Mathura, Uttar Pradesh, India
| | - Khursheed Muzammil
- Department of Public Health, College of Applied Medical Sciences, Khamis Mushait Campus, King Khalid University, Abha, Saudi Arabia
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Harcourt Butler Technical University, Kanpur, Uttar Pradesh, India
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Yaqoob U, Younis MI. Chemical Gas Sensors: Recent Developments, Challenges, and the Potential of Machine Learning-A Review. Sensors (Basel) 2021; 21:2877. [PMID: 33923937 PMCID: PMC8073537 DOI: 10.3390/s21082877] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 02/04/2023]
Abstract
Nowadays, there is increasing interest in fast, accurate, and highly sensitive smart gas sensors with excellent selectivity boosted by the high demand for environmental safety and healthcare applications. Significant research has been conducted to develop sensors based on novel highly sensitive and selective materials. Computational and experimental studies have been explored in order to identify the key factors in providing the maximum active location for gas molecule adsorption including bandgap tuning through nanostructures, metal/metal oxide catalytic reactions, and nano junction formations. However, there are still great challenges, specifically in terms of selectivity, which raises the need for combining interdisciplinary fields to build smarter and high-performance gas/chemical sensing devices. This review discusses current major gas sensing performance-enhancing methods, their advantages, and limitations, especially in terms of selectivity and long-term stability. The discussion then establishes a case for the use of smart machine learning techniques, which offer effective data processing approaches, for the development of highly selective smart gas sensors. We highlight the effectiveness of static, dynamic, and frequency domain feature extraction techniques. Additionally, cross-validation methods are also covered; in particular, the manipulation of the k-fold cross-validation is discussed to accurately train a model according to the available datasets. We summarize different chemresistive and FET gas sensors and highlight their shortcomings, and then propose the potential of machine learning as a possible and feasible option. The review concludes that machine learning can be very promising in terms of building the future generation of smart, sensitive, and selective sensors.
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Affiliation(s)
| | - Mohammad I. Younis
- Department of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia;
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Zhou X, Sun H, Bai X. Two-Dimensional Transition Metal Dichalcogenides: Synthesis, Biomedical Applications and Biosafety Evaluation. Front Bioeng Biotechnol 2020; 8:236. [PMID: 32318550 PMCID: PMC7154136 DOI: 10.3389/fbioe.2020.00236] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/06/2020] [Indexed: 11/29/2022] Open
Abstract
Recently, two-dimensional transition metal dichalcogenides (2D TMDCs) have drawn certain attentions in many fields. The unique and diversified electronic structure and ultrathin sheet structure of 2D TMDCs offer opportunities for moving ahead of other 2D nanomaterials such as graphene and expanding the wide application of inorganic 2D nanomaterials in many fields. For a better understanding of 2D TMDCs, one needs to know methods for their synthesis and modification, as well as their potential applications and possible biological toxicity. Herein, we summarized the recent research progress of 2D TMDCs with particular focus on their biomedical applications and potential health risks. Firstly, two kinds of synthesis methods of 2D TMDCs, top-down and bottom-up, and methods for their surface functionalization are reviewed. Secondly, the applications of 2D TMDCs in the field of biomedicine, including drug loading, photothermal therapy, biological imaging and biosensor were summarized. After that, we presented the existing researches on biosafety evaluation of 2D TMDCs. At last, we discussed major research gap in current researches and challenges and coping strategies in future studies.
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Affiliation(s)
- Xiaofei Zhou
- Faculty of Science and Technology, Bohai Campus, Hebei Agricultural University, Cangzhou, China
| | - Hainan Sun
- Shandong Vocational College of Light Industry, Zibo, China
| | - Xue Bai
- School of Public Health, Shandong University, Jinan, China
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Li X, Zhang S, Chen S, Zhang X, Gao J, Zhang YW, Zhao J, Shen X, Yu R, Yang Y, He L, Nie J, Xiong C, Dou R. Mo Concentration Controls the Morphological Transitions from Dendritic to Semicompact, and to Compact Growth of Monolayer Crystalline MoS 2 on Various Substrates. ACS Appl Mater Interfaces 2019; 11:42751-42759. [PMID: 31626529 DOI: 10.1021/acsami.9b14577] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The domain morphology in the growth of transition-metal dichalcogenides (TMDCs) is mostly triangular but rarely dendritic. Here, we report a robust chemical vapor deposition method to fabricate atomic-thin 2H-phase MoS2 dendrites on several single-crystalline substrates with different lattice structures, such as rutile-TiO2(001), SrTiO3(001), and sapphire(0001). It is found that by tuning the concentration of Mo adatoms, the morphology of MoS2 domains on these substrates evolves from tridentate dendrites at a low Mo concentration to semicompact fractal domains at an intermediate Mo concentration, and to a compact triangular shape at a high Mo concentration. First-principles calculations reveal that the edge diffusion barrier of Mo is comparable to the attachment barrier, inhibiting fast Mo atom diffusion along the edge. Kinetics Monte Carlo simulations with varying Mo concentrations well reproduce the experimental results. Our combined experimental and theoretical analyses evidently show that the growth of MoS2 dendritic domains at a low Mo concentration is a nonequilibrium process, which is dominated by the kinetics of Mo adatoms. Our study presents an effective route to control the morphology of TMDCs by simply tuning the transition-metal adatom concentration.
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Affiliation(s)
- Xiaying Li
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Shiping Zhang
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Shuai Chen
- Institute of High Performance Computing, A*STAR , 138632 Singapore
| | - Xingli Zhang
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Junfeng Gao
- Laboratory of Materials Modification by Laser, Ion and Electron Beams , Dalian University of Technology, Ministry of Education , Dalian 116024 , China
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR , 138632 Singapore
| | - Jijun Zhao
- Laboratory of Materials Modification by Laser, Ion and Electron Beams , Dalian University of Technology, Ministry of Education , Dalian 116024 , China
| | - Xi Shen
- Beijing National Laboratory for Condensed Mater Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
| | - Richeng Yu
- Beijing National Laboratory for Condensed Mater Physics , Institute of Physics, Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
| | - Yu Yang
- Institute of Applied Physics & Computational Mathematics, LCP , Beijing 100088 , People's Republic of China
| | - Lin He
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Jiacai Nie
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Changmin Xiong
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Ruifen Dou
- Department of Physics , Beijing Normal University , Beijing 100875 , People's Republic of China
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