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Majnis MF, Mohd Adnan MA, Yeap SP, Muhd Julkapli N. How can heteroatoms boost the performance of photoactive nanomaterials for wastewater purification? JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121808. [PMID: 39025012 DOI: 10.1016/j.jenvman.2024.121808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/17/2024] [Accepted: 07/07/2024] [Indexed: 07/20/2024]
Abstract
Photocatalysis, as an alternative for treating persistent water pollutants, holds immense promise. However, limitations hinder sustained treatment and recycling under varying light conditions. This comprehensive review delves into the novel paradigm of metal and non-metal doping to overcome these challenges. It begins by discussing the fundamental principles of photocatalysis and its inherent limitations. Understanding these constraints is crucial for developing effective strategies. Band gap narrowing by metal and non-metal doping modifies the band gap, enabling visible-light absorption. Impurity energy levels and oxygen vacancies influenced the doping energy levels and surface defects. Interfacial electron transfer and charge carrier recombination are the most important factors that impact overall efficiency. The comparative analysis of nanomaterials are reviewed on various, including nanometal oxides, nanocarbon materials, and advanced two-dimensional structures. The synthesis process are narratively presented, emphasizing production yields, selectivity, and efficiency. The review has potential applications in the environment for efficient pollutant removal and water purification, economic cost-effective and scalable production and technological advancement catalyst design, in spite of its challenges in material stability, synthesis methods and optimizing band gaps. The novelty of the review paper is on the proposal of a new paradigm of heterojunctions of doped metal and non-metal photocatalysts to promise highly efficient water treatment. This review bridges the gap between fundamental research and practical applications, offering insights into tailored nano photocatalysts.
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Affiliation(s)
- Mohd Fadhil Majnis
- School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Mohd Azam Mohd Adnan
- Advanced Materials Research Group (AMRG) Department of Engineering, Faculty of Engineering & Life Sciences, Universiti Selangor, Bestari Jaya Campus, Jalan Timur Tambahan, 45600, Bestari Jaya, Selangor, Malaysia
| | - Swee Pin Yeap
- Department of Chemical Engineering UCSI University. UCSI Heights, Jalan Puncak Menara Gading, Taman Connaught, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Nurhidayatullaili Muhd Julkapli
- Nanotechnology and Catalysis Research Center (NANOCAT) Level 3, Block A, Institute for Advanced Studies (IAS), Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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2
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Rahman A, Khan F, Jennings JR, Tan AL, Kim YM, Khan MM. Effect of CdS loading on the properties and photocatalytic activity of MoS 2 nanosheets. BMC Chem 2024; 18:135. [PMID: 39049130 PMCID: PMC11270851 DOI: 10.1186/s13065-024-01250-y] [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: 12/24/2023] [Accepted: 07/15/2024] [Indexed: 07/27/2024] Open
Abstract
Molybdenum sulfide (MoS2) and modified MoS2 with different percentages of CdS (10%, 30%, and 50% CdS@MoS2) were successfully synthesized and characterized. The photocatalytic performance of the MoS2 and CdS@MoS2 was evaluated by degrading brilliant green (BG), methylene blue (MB), and rhodamine B (RhB) dyes under visible light irradiation. Amongst the synthesized photocatalysts, 50% CdS@MoS2 exhibited the highest photocatalytic activity, degrading 97.6%, 90.3%, and 75.5% of BG, MB, and RhB dyes, respectively within 5 h. The active species involved in the degradation processes were investigated. All trapping agents inhibited BG and MB degradation to a similar extent, indicating that all of the probed active species play an important role in the degradation of BG and MB. In contrast, h+ and O2•- were found to be the main reactive species in the photocatalytic RhB degradation. A potential mechanism for the photocatalytic degradation of dyes using CdS@MoS2 has been proposed. This work highlights the potential of CdS@MoS2 as a photocatalyst for more efficient water remediation applications.
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Affiliation(s)
- Ashmalina Rahman
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - Fazlurrahman Khan
- Institute of Fisheries Science, Pukyong National University, Busan, 48513, Republic of Korea
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea
| | - James Robert Jennings
- Applied Physics, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
- Optoelectronic Device Research Group, Universiti Brunei Darussalam, Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - Ai Ling Tan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam
| | - Young-Mog Kim
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea
- Department of Food Science and Technology, Pukyong National University, Busan, 48513, Republic of Korea
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam.
- Optoelectronic Device Research Group, Universiti Brunei Darussalam, Brunei Darussalam, Jalan Tungku Link, Gadong, BE, 1410, Brunei Darussalam.
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3
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Morabito F, Synnatschke K, Mehew JD, Varghese S, Sayers CJ, Folpini G, Petrozza A, Cerullo G, Tielrooij KJ, Coleman J, Nicolosi V, Gadermaier C. Long lived photogenerated charge carriers in few-layer transition metal dichalcogenides obtained from liquid phase exfoliation. NANOSCALE ADVANCES 2024; 6:1074-1083. [PMID: 38356640 PMCID: PMC10863726 DOI: 10.1039/d3na00862b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/26/2023] [Indexed: 02/16/2024]
Abstract
Semiconducting transition metal dichalcogenides are important optoelectronic materials thanks to their intense light-matter interaction and wide selection of fabrication techniques, with potential applications in light harvesting and sensing. Crucially, these applications depend on the lifetimes and recombination dynamics of photogenerated charge carriers, which have primarily been studied in monolayers obtained from labour-intensive mechanical exfoliation or costly chemical vapour deposition. On the other hand, liquid phase exfoliation presents a high throughput and cost-effective method to produce dispersions of mono- and few-layer nanosheets. This approach allows for easy scalability and enables the subsequent processing and formation of macroscopic films directly from the liquid phase. Here, we use transient absorption spectroscopy and spatiotemporally resolved pump-probe microscopy to study the charge carrier dynamics in tiled nanosheet films of MoS2 and WS2 deposited from the liquid phase using an adaptation of the Langmuir-Schaefer technique. We find an efficient photogeneration of charge carriers with lifetimes of several nanoseconds, which we ascribe to stabilisation at nanosheet edges. These findings provide scope for photocatalytic and photodetector applications, where long-lived charge carriers are crucial, and suggest design strategies for photovoltaic devices.
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Affiliation(s)
- Floriana Morabito
- Area Science Park Basovizza S.S. 14 Km 163.5 34149 Trieste Italy
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
- CNR-IOM, Consiglio Nazionale delle Ricerche Istituto Officina dei Materiali Trieste Italy
| | - Kevin Synnatschke
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Jake Dudley Mehew
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
| | - Sebin Varghese
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
| | - Charles James Sayers
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
| | - Giulia Folpini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
| | - Annamaria Petrozza
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
| | - Giulio Cerullo
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
| | - Klaas-Jan Tielrooij
- Catalan Institute of Nanoscience and Nanotechnology ICN2 UAB Campus Bellaterra (Barcelona) 08193 Spain
- TU Eindhoven, Department of Applied Physics Den Dolech 2 5612 AZ Eindhoven The Netherlands
| | - Jonathan Coleman
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Valeria Nicolosi
- School of Physics, CRANN & AMBER Research Centres, Trinity College Dublin Dublin D02 Ireland
| | - Christoph Gadermaier
- Dipartimento di Fisica, Politecnico di Milano Piazza L. da Vinci 32 20133 Milano Italy
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia Via Rubattino 81 20134 Milan Italy
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4
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G B, Banat F, Abu Haija M. Photoelectrochemical advanced oxidation processes for simultaneous removal of antibiotics and heavy metal ions in wastewater using 2D-on-2D WS 2@CoFe 2O 4 heteronanostructures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 339:122753. [PMID: 37852314 DOI: 10.1016/j.envpol.2023.122753] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/28/2023] [Accepted: 10/13/2023] [Indexed: 10/20/2023]
Abstract
The presence of antibiotics in water poses significant threats to both human health and the environment. Addressing this issue requires the effective treatment of medical wastewater. Photoelectrochemical advanced oxidation processes (PEAOPs) are emerging as promising solutions for wastewater treatment. This process utilizes photocatalysts to convert charge carriers into reactive species such as hydroxyl radicals and superoxide ions, which are essential for degrading pollutants in wastewater. However, limitations in charge carrier separation and transport have hindered the efficiency of photoelectrochemical advanced oxidation processes. To overcome these limitations, we designed WS2@CoFe2O4 heterojunctions, optimizing their energy levels to enhance charge transport and separation. This improvement significantly increased the oxidation of antibiotics such as amoxicillin and azithromycin. Multiple reactions occurred at the WS2@CoFe2O4 heterojunctions during photoelectrochemical advanced oxidation processes, leading to the impressive degradation of up to 99% of antibiotics under visible light irradiation at 0.8 V. Urea and H2O2 acted as oxidation agents within photoelectrochemical advanced oxidation processes, amplifying the generation of hydroxyl radicals and superoxide ions, further enhancing antibiotic oxidation. Moreover, the WS2@CoFe2O4 photoanode efficiently oxidized toxic antibiotics while converting As(III) into the less harmful As(V). Crucially, recyclability tests confirmed the robustness of the WS2@CoFe2O4 photoanode, ensuring its suitability for prolonged use in photoelectrochemical advanced oxidation processes. Integrating WS2@CoFe2O4 photoanodes into water purification systems can enhance efficiency, reduce energy consumption, and improve economic viability. This technology's scalability and its ability to protect ecosystems while conserving water resources make it a promising solution for addressing the critical issue of antibiotic pollution in water environments.
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Affiliation(s)
- Bharath G
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Mohammad Abu Haija
- Department of Chemistry, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Advanced Materials Chemistry Center (AMCC), Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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5
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Zhang Z, Wan C, Li H, Liu C, Meng L, Yan X. Effect of external electric field on the electronic properties of the AlAs/SiC van der Waals heterostructure. Phys Chem Chem Phys 2023; 25:27766-27773. [PMID: 37814790 DOI: 10.1039/d3cp03031h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Type-II van der Waals (vdW) heterostructures are regarded as the optimum candidates for unipolar electronic device applications due to their capacity for spontaneous electron-hole separation. Here, we studied the electronic properties of the AlAs/SiC vdW heterostructure via density functional theory calculations. Results show that the conduction band minimum (CBM) and valence band maximum (VBM) of this heterostructure are mainly contributed by different materials, illustrating that the AlAs/SiC heterostructure has a type-II band alignment. Interestingly, this heterostructure possesses flat valence bands near the Fermi level. In addition, under the modulation of external electric field ranging between -1 V Å-1∼0.8 V Å-1, the band gap of the heterostructure can be tuned continuously, while the band structure maintains a stable type-II band alignment with flat top valence bands. When the electric field exceeds -1 or 0.8 V Å-1, the heterostructure transitions from semiconductor material to metal, indicating the tunability of electronic properties under external fields. These results indicate that the AlAs/SiC heterostructure shows great potential for application in high-performance optoelectronic devices and a strong correlation may exist in this system.
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Affiliation(s)
- Zicheng Zhang
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
| | - Changxin Wan
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
| | - Heng Li
- Jiujiang Resarch Institute of Xiamen University, Jiujiang, 332000, China
- Fujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen University, Xiamen, 361005, China
| | - Chunsheng Liu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
| | - Lan Meng
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
| | - Xiaohong Yan
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
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6
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German E, Gebauer R. The Oxygen Evolution Reaction at MoS 2 Edge Sites: The Role of a Solvent Environment in DFT-Based Molecular Simulations. Molecules 2023; 28:5182. [PMID: 37446844 DOI: 10.3390/molecules28135182] [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: 06/05/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Density functional theory (DFT) calculations are employed to study the oxygen evolution reaction (OER) on the edges of stripes of monolayer molybdenum disulfide. Experimentally, this material has been shown to evolve oxygen, albeit with low efficiency. Previous DFT studies have traced this low catalytic performance to the unfavourable adsorption energies of some reaction intermediates on the MoS2 edge sites. In this work, we study the effects of the aqueous liquid surrounding the active sites. A computational approach is used, where the solvent is modeled as a continuous medium providing a dielectric embedding of the catalyst and the reaction intermediates. A description at this level of theory can have a profound impact on the studied reactions: the calculated overpotential for the OER is lowered from 1.15 eV to 0.77 eV. It is shown that such variations in the reaction energetics are linked to the polar nature of the adsorbed intermediates, which leads to changes in the calculated electronic charge density when surrounded by water. These results underline the necessity to computationally account for solvation effects, especially in aqueous environments and when highly polar intermediates are present.
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Affiliation(s)
- Estefania German
- Department of Theoretical, Atomic and Optical Physics, University of Valladolid, 47011 Valladolid, Spain
| | - Ralph Gebauer
- The Abdus Salam International Centre for Theoretical Physics (ICTP), Strada Costiera 11, 34151 Trieste, Italy
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7
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Zhang M, Zhang J. Highly Selective NH 3 Sensor Based on MoS 2/WS 2 Heterojunction. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1835. [PMID: 37368265 DOI: 10.3390/nano13121835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/26/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023]
Abstract
In this paper, the heterostructure of MoS2/WS2 was prepared by a hydrothermal method; the n-n heterostructure was demonstrated using TEM combined with Mott-Schottky analysis. The valence and conduction band positions were further identified by the XPS valence band spectra. The NH3-sensing properties were assessed at room temperature by changing the mass ratio of the MoS2 and WS2 components. The 50 wt%-MoS2/WS2 sample exhibited the best performance, with a peak response of 23643% to NH3 at a concentration of 500 ppm, a minimum detection limit of 20 ppm, and a fast recovery time of 2.6 s. Furthermore, the composites-based sensors demonstrated an excellent humidity immune property with less than one order of magnitude in the humidity range of 11-95% RH, revealing the practical application value of these sensors. These results suggest that the MoS2/WS2 heterojunction is an intriguing candidate for fabricating NH3 sensors.
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Affiliation(s)
- Min Zhang
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, China
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jinzhu Zhang
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, China
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
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8
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D'Agosta P, Tumino F, Russo V, Li Bassi A, Casari CS. Interface coupling in Au-supported MoS 2-WS 2 heterobilayers grown by pulsed laser deposition. NANOSCALE 2023; 15:7493-7501. [PMID: 37017209 PMCID: PMC10134180 DOI: 10.1039/d3nr00614j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Van der Waals heterostructures of transition metal dichalcogenides (TMDs) are promising systems for engineering functional layered 2D materials with tailored properties. In this work, we study the growth of WS2/MoS2 and MoS2/WS2 heterobilayers by pulsed laser deposition (PLD) under ultra-high vacuum conditions. Using Au(111) as growth substrate, we investigated the heterobilayer morphology and structure at the nanoscale by in situ scanning tunneling microscopy. Our experiments show that the heterostructure growth can be controlled with high coverage and thickness sensitivity by tuning the number of laser pulses in the PLD process. Raman spectroscopy complemented our investigation, revealing the effect of the interaction with the metallic substrate on the TMD vibrational properties and a strong interlayer coupling between the MoS2 and WS2 layers. The transfer of the heterobilayers on a silica substrate via a wet etching process shows the possibility to decouple them from the native metallic substrate and confirms that the interlayer coupling is not substrate-dependent. This work highlights the potential of the PLD technique as a method to grow TMD heterostructures, opening to new perspectives in the synthesis of complex 2D layered materials.
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Affiliation(s)
- Paolo D'Agosta
- Department of Energy, Politecnico di Milano, via G. Ponzio 34/3, I-20133 Milan, Italy.
| | - Francesco Tumino
- Department of Energy, Politecnico di Milano, via G. Ponzio 34/3, I-20133 Milan, Italy.
- Department of Physics, Engineering Physics and Astronomy, Queen's University, 64 Bader Lane, Kingston, ON, Canada, K7L 3N6
| | - Valeria Russo
- Department of Energy, Politecnico di Milano, via G. Ponzio 34/3, I-20133 Milan, Italy.
| | - Andrea Li Bassi
- Department of Energy, Politecnico di Milano, via G. Ponzio 34/3, I-20133 Milan, Italy.
| | - Carlo S Casari
- Department of Energy, Politecnico di Milano, via G. Ponzio 34/3, I-20133 Milan, Italy.
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Qiu S, Zhang B, Wang X, Huang J, Zhao G, Ding M, Xu X. Interface strong-coupled 3D Mo-NiS@Ni-Fe LDH flower-cluster as exceptionally efficient electrocatalyst for water splitting in wide pH range. J Colloid Interface Sci 2023; 641:277-288. [PMID: 36934575 DOI: 10.1016/j.jcis.2023.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/09/2023]
Abstract
It is crucial to create a bifunctional catalyst with high efficiency and low cost for electrochemical water splitting under alkaline and neutral pH conditions. This study investigated the in-situ creation of ultrafine Mo-NiS and NiFe LDH nanosheets as an effective and stable electrocatalyst with a three-dimensional (3D) flower-cluster hierarchical structure (Mo-NiS@NiFe LDH). The strong interfacial connection between Mo-NiS and NiFe LDH enhances the formation of metal higher chemical states in the material, optimizes the electronic structure, increases OH- adsorption capacity improves electron transfer/mass diffusion, and promotes O2/H2 gas release. As a result, at 10 mA cm-2, Mo-NiS@NiFe LDH/NF demonstrates the outstanding bifunctional electrocatalytic activity of just 107 mV (HER, hydrogen evolution reaction) and 184 mV (hydrogen evolution reaction) (OER, oxygen evolution reaction). The catalytic performance is remarkably stable after 72 h of continuous operation in 1 M KOH at high current densities (300 mA cm-2). More interestingly, in the overall water splitting system, the cell voltages for anode and cathode in both alkaline and neutral electrolytes for Mo-NiS@NiFe LDH/NF are only 1.54 V (alkaline) and 2.06 V (neutral) at 10 mA cm-2. These results demonstrated that the bifunctional electrocatalyst design concept is a viable solution for water splitting in both alkaline and neutral systems.
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Affiliation(s)
- Shipeng Qiu
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China
| | - Baojie Zhang
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China
| | - Xiao Wang
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China
| | - Jinzhao Huang
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China
| | - Gang Zhao
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, PR China.
| | - Meng Ding
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China
| | - Xijin Xu
- Laboratory of Functional Micro-nano Materials and Devices, School of Physics and Technology, University of Jinan, Jinan 250022, PR China.
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10
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Bose S, Mukherjee S, Jana S, Srivastava SK, Ray SK. One-pot liquid-phase synthesis of MoS 2-WS 2van der waals heterostructures for broadband photodetection. NANOTECHNOLOGY 2023; 34:125704. [PMID: 36595332 DOI: 10.1088/1361-6528/acab6e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Two dimensional (2D) van der Waals heterostructures (vdWHs) have unique potential in facilitating the stacking of layers of different 2D materials for optoelectronic devices with superior characteristics. However, the fabrication of large area all-2D heterostructures is still challenging towards realizing practical devices at a reduced cost. In the present work, we have demonstrated a rapid yet simple, impurity-free and efficient sonication-assisted chemical exfoliation approach to synthesize hybrid vdWHs based on 2D molybdenum disulphide (MoS2) and tungsten disulphide (WS2), with high yield. Microscopic and spectroscopic studies have confirmed the successful exfoliation of layered 2D materials and formation of their hybrid heterostructures. The co-existence of 2D MoS2and WS2in the vdWH hybrids is established by optical absorption and Raman shift measurements along with their chemical stiochiometry determined by x-ray photoelectron spectroscopy. The spectral response of the vdWH/Si (2D/3D) heterojunction photodetector fabricated using the as-synthesized material is found to exhibit broadband photoresponse compared to that of the individual 2D MoS2and WS2devices. The peak responsivity and detectivity are found to be as high as ∼2.15 A W-1and 2.05 × 1011Jones, respectively for an applied bias of -5 V. The ease of fabrication with appreciable performance of the chemically synthesized vdWH-based devices have revealed their potential use for large area optoelectronic applications on Si-compatible CMOS platforms.
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Affiliation(s)
- Shaona Bose
- Department of Physics, Indian Institute of Technology, Kharagpur- 721 302, India
| | - Subhrajit Mukherjee
- Department of Physics, Indian Institute of Technology, Kharagpur- 721 302, India
- Presently at the Faculty of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa -3203003, Israel
| | - Subhajit Jana
- Department of Physics, Indian Institute of Technology, Kharagpur- 721 302, India
| | | | - Samit Kumar Ray
- Department of Physics, Indian Institute of Technology, Kharagpur- 721 302, India
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11
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Review on Metal Chalcogenides and Metal Chalcogenide-Based Nanocomposites in Photocatalytic Applications. CHEMISTRY AFRICA 2023. [DOI: 10.1007/s42250-022-00577-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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12
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Li F, Benetti D, Zhang M, Shi L, Feng J, Wei Q, Rosei F. Tunable 0D/2D/2D Nanocomposite Based on Green Zn-Doped CuInS 2 Quantum Dots and MoS 2/rGO as Photoelectrodes for Solar Hydrogen Production. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54790-54802. [PMID: 36455158 DOI: 10.1021/acsami.2c17625] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Charge separation, transmission, and light absorption properties are critical to determining the performance of photoelectrochemical (PEC) devices. An important strategy to control such properties is based on using heterostructured materials. Herein, a tunable zero-dimensional (0D)/two-dimensional (2D) heterostructure is designed based on quantum dots (QDs) and 2D nanosheets (NSs). Specifically, eco-friendly Zn-doped CuInS2 QDs prepared by hot injection were anchored on hierarchical (2D/2D) MoS2/rGO (MG) NSs through a facile sonication-assisted method to develop a 0D/2D/2D heterojunction-based photoelectrode for solar hydrogen production. The interfacial structure and band alignment between the proposed 0D QDs and 2D/2D MG NSs were engineered by modulating the Zn molar ratio during the QD synthesis. As proof of concept, the optimized 0D/2D/2D photoanode exhibits almost five times higher PEC activity than MG/CuInS2 and MoS2/Zn-CuInS2 NSs due to the enhanced light absorption, efficient charge separation, and transmission. Zn doping and the presence of graphene are essential in enhancing performance in the proposed heterostructure, reducing recombination of charge carriers, and improving sunlight absorption. This work shows how optimal band alignment control and carbon addition can facilitate charge transfer, enabling the development of highly efficient PEC devices based on 0D/2D/2D heterostructure nanocomposites.
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Affiliation(s)
- Faying Li
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, Varennes, QuébecJ3X 1S2, Canada
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan250022, P. R. China
| | - Daniele Benetti
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, Varennes, QuébecJ3X 1S2, Canada
| | - Min Zhang
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, Varennes, QuébecJ3X 1S2, Canada
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing100084, China
| | - Li Shi
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, Varennes, QuébecJ3X 1S2, Canada
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan250022, P. R. China
| | - Jinhui Feng
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan250022, P. R. China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan250022, P. R. China
| | - Federico Rosei
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, Varennes, QuébecJ3X 1S2, Canada
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan250022, P. R. China
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13
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Shi H, Zhang Y, Pang N, Xu S, Xiong D, Wang L, Yang P, Chu PK. Surface conductance analysis of X-MoS2 (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Biosensors for the detection of protein kinases: Recent progress and challenges. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Zheng D, Zheng Z, Yang J, Xu Y, Ng KM, Huang L, Chen Y, Gao W. Ultrasensitive photoelectrochemical sensing platform based on heterostructural CuO/NCDs@Au nanocomposites with the efficient photo-induced carrier separation. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Lamkaouane H, Ftouhi H, Richard-Plouet M, Gautier N, Stephant N, Zazoui M, Addou M, Cattin L, Bernède JC, Mir Y, Louarn G. Efficient and Facile Synthetic Route of MoO 3:MoS 2 Hybrid Thin Layer via Oxidative Reaction of MoS 2 Nanoflakes. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3171. [PMID: 36144959 PMCID: PMC9503914 DOI: 10.3390/nano12183171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
In the present study, MoO3:MoS2 hybrid thin layers have been synthesized through partial oxidation of MoS2. We have demonstrated that the reaction requires darkness conditions to decrease the oxidation rate, thus obtaining the hybrid, MoO3:MoS2. A simple liquid-phase exfoliation (LPE) is carried out to achieve homogenous MoS2 nanoflakes and high reproducibility of the results after MoS2 oxidation. XPS analyses reveal the presence of MoO3, MoS2, and MoOxSy in the hybrid layer. These results are also confirmed by X-ray diffraction and high-resolution TEM. Optical absorbance reveals that the absorption peaks of the MoO3:MoS2 hybrid are slightly redshifted with the appearance of absorption peaks in the near-infrared region due to the defects created after the oxidation reaction. The composition and atomic percentages of each component in the hybrid layer as a function of reaction time have also been reported to give perspective guides for improving electronic and optoelectronic devices based on 2D-MoS2.
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Affiliation(s)
- Hind Lamkaouane
- Laboratoire Matériaux, Energie et Contrôle Système, Faculté des Sciences et Techniques Mohammedia, Université Hassan II de Casablanca, BP 146, Mohammedia 28806, Morocco
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
| | - Hajar Ftouhi
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
- Équipe de Recherche Couches Minces et Nanomatériaux, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, BP 416, Tanger 90040, Morocco
| | - Mireille Richard-Plouet
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
| | - Nicolas Gautier
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
| | - Nicolas Stephant
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
| | - Mimoun Zazoui
- Laboratoire Matériaux, Energie et Contrôle Système, Faculté des Sciences et Techniques Mohammedia, Université Hassan II de Casablanca, BP 146, Mohammedia 28806, Morocco
| | - Mohammed Addou
- Équipe de Recherche Couches Minces et Nanomatériaux, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, BP 416, Tanger 90040, Morocco
| | - Linda Cattin
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
| | - Jean Christian Bernède
- MOLTECH Anjou, Unité Mixte de Recherche (UMR 6200), Centre National de la Recherche Scientifique (CNRS), Nantes Université, 2 rue de la Houssinière, 44000 Nantes, France
| | - Yamina Mir
- Laboratoire Matériaux, Energie et Contrôle Système, Faculté des Sciences et Techniques Mohammedia, Université Hassan II de Casablanca, BP 146, Mohammedia 28806, Morocco
| | - Guy Louarn
- Institut des Matériaux de Nantes Jean Rouxel (IMN), Centre National de la Recherche Scientifique (CNRS), Nantes Université, CEDEX 03, 44000 Nantes, France
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17
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Corletto A, Ellis AV, Shepelin NA, Fronzi M, Winkler DA, Shapter JG, Sherrell PC. Energy Interplay in Materials: Unlocking Next-Generation Synchronous Multisource Energy Conversion with Layered 2D Crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203849. [PMID: 35918607 DOI: 10.1002/adma.202203849] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Layered 2D crystals have unique properties and rich chemical and electronic diversity, with over 6000 2D crystals known and, in principle, millions of different stacked hybrid 2D crystals accessible. This diversity provides unique combinations of properties that can profoundly affect the future of energy conversion and harvesting devices. Notably, this includes catalysts, photovoltaics, superconductors, solar-fuel generators, and piezoelectric devices that will receive broad commercial uptake in the near future. However, the unique properties of layered 2D crystals are not limited to individual applications and they can achieve exceptional performance in multiple energy conversion applications synchronously. This synchronous multisource energy conversion (SMEC) has yet to be fully realized but offers a real game-changer in how devices will be produced and utilized in the future. This perspective highlights the energy interplay in materials and its impact on energy conversion, how SMEC devices can be realized, particularly through layered 2D crystals, and provides a vision of the future of effective environmental energy harvesting devices with layered 2D crystals.
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Affiliation(s)
- Alexander Corletto
- Department of Chemical Engineering, The University of Melbourne, Grattan Street, Parkville, Victoria, 3010, Australia
| | - Amanda V Ellis
- Department of Chemical Engineering, The University of Melbourne, Grattan Street, Parkville, Victoria, 3010, Australia
| | - Nick A Shepelin
- Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, CH-5232, Switzerland
| | - Marco Fronzi
- School of Mathematical and Physical Science, University of Technology Sydney, Ultimo, New South Wales, 2007, Australia
| | - David A Winkler
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria, 3052, Australia
- School of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Kingsbury Drive, Bundoora, Victoria, 3086, Australia
- School of Pharmacy, The University of Nottingham, Nottingham, NG7 2RD, UK
| | - Joseph G Shapter
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Peter C Sherrell
- Department of Chemical Engineering, The University of Melbourne, Grattan Street, Parkville, Victoria, 3010, Australia
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18
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He Y, Gao H, Liu J. A Visible-Light-Active CuS/MoS 2/Bi 2WO 6 Aptamer Sensitively Detects the Non-Steroidal Anti-Inflammatory Drug Diclofenac. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2834. [PMID: 36014699 PMCID: PMC9414549 DOI: 10.3390/nano12162834] [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: 06/27/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Diclofenac is a non-steroidal, anti-inflammatory drug and is clinically used for the treatment of osteoarthritis, non-articular rheumatism, etc. This research aimed to demonstrate the creation of an upgraded photoelectrochemical (PEC) aptamer sensor for detecting diclofenac (DCF) with high sensitivity. In this work, photoactive materials and bio-identification components served as visible-light-active CuS/MoS2/Bi2WO6 heterostructures and aptamers, respectively. CuS and MoS2/Bi2WO6 were combined to improve photocurrent responsiveness, which helped the structure of PEC aptasensors. Additionally, the one-pot synthesis of CuS/MoS2/Bi2WO6 was ecologically beneficial. With these optimizations, the photocurrent response of aptamer/CS/CuS/MoS2/Bi2WO6 exhibited linearity between 0.1 and 500 nM DCF. The detection limit was 0.03 nM (S/N = 3). These results suggest that the PEC sensing technique might produce an ultra-sensitive sensor with high selectivity and stability for DCF detection.
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19
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Huang Y, Guo J, Li Y, Li H, Fan DE. 2D-Material-Integrated Micromachines: Competing Propulsion Strategy and Enhanced Bacterial Disinfection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203082. [PMID: 35656917 DOI: 10.1002/adma.202203082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/27/2022] [Indexed: 06/15/2023]
Abstract
2D transition-metal-dichalcogenide materials, such as molybdenum disulfide (MoS2 ) have received immense interest owing to their remarkable structure-endowed electronic, catalytic, and mechanical properties for applications in optoelectronics, energy storage, and wearable devices. However, 2D materials have been rarely explored in the field of micro/nanomachines, motors, and robots. Here, MoS2 with anatase TiO2 is successfully integrated into an original one-side-open hollow micromachine, which demonstrates increased light absorption of TiO2 -based micromachines to the visible region and the first observed motion acceleration in response to ionic media. Both experimentation and theoretical analysis suggest the unique type-II bandgap alignment of MoS2 /TiO2 heterojunction that accounts for the observed unique locomotion owing to a competing propulsion mechanism. Furthermore, by leveraging the chemical properties of MoS2 /TiO2 , the micromachines achieve sunlight-powered water disinfection with 99.999% Escherichia coli lysed in an hour. This research suggests abundant opportunities offered by 2D materials in the creation of a new class of micro/nanomachines and robots.
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Affiliation(s)
- Yun Huang
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX, 78712, USA
| | - Jianhe Guo
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX, 78712, USA
| | - Yufan Li
- Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Huaizhi Li
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX, 78712, USA
| | - Donglei Emma Fan
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX, 78712, USA
- Walker Department of Mechanical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
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20
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Bozheyev F, Fengler S, Kollmann J, Klassen T, Schieda M. Transient Surface Photovoltage Spectroscopy of (NH 4) 2Mo 3S 13/WSe 2 Thin-Film Photocathodes for Photoelectrochemical Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22071-22081. [PMID: 35512324 DOI: 10.1021/acsami.2c01623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hydrogen produced from solar energy has the potential to replace petroleum in the future. To this respect, there is a need in the abandoned and efficient materials that can continuously split water molecules using solar energy. In this report, an ammonium thiomolybdate (ATM: (NH4)2Mo3S13) is evaluated as a p-type semiconductor film photocathode for hydrogen evolution reaction. The ATM thin films are prepared by spin-coating on fluorine-doped tin oxide substrates, and their structural, morphological, optical, photoelectrical, and photoelectrochemical (PEC) properties are studied. Transient surface photovoltage (TSPV) spectroscopy and spectroscopic ellipsometry indicate the band gap Eg = 1.9 eV for the ATM thin films. Furthermore, the photovoltage of the ATM thin films measured by TSPV is correlated to the photocurrents measured by the PEC characterization that can be used to evaluate the material potential for hydrogen generation. The films exhibit a low photocurrent density of 46 μA cm-2 at 0 VRHE. However, its combination with WSe2 thin-film photocathodes results in a significant increase in photocurrent density up to 4.6 mA cm-2 at 0 VRHE (100 times). The reason for such a strong charge carrier transfer effect for ATM/WSe2 heterojunction photocathodes is studied by TSPV spectroscopy that allows a comprehensive evaluation of potential photovoltaic materials toward PEC hydrogen production. Furthermore, the photovoltage generated by a WSe2 thin film is 30 times lower than that of its single crystal, which indicates that the quality of WSe2 thin films should be improved for faster PEC hydrogen evolution.
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Affiliation(s)
- Farabi Bozheyev
- Institute of Photoelectrochemistry, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Street 1, Geesthacht D-21502, Germany
- National Nanolaboratory, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, Almaty 050000, Kazakhstan
| | - Steffen Fengler
- Institute of Photoelectrochemistry, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Street 1, Geesthacht D-21502, Germany
| | - Jiri Kollmann
- Institute of Photoelectrochemistry, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Street 1, Geesthacht D-21502, Germany
| | - Thomas Klassen
- Institute of Photoelectrochemistry, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Street 1, Geesthacht D-21502, Germany
| | - Mauricio Schieda
- Institute of Photoelectrochemistry, Helmholtz-Zentrum Hereon GmbH, Max-Planck-Street 1, Geesthacht D-21502, Germany
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21
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Patel AB, Vaghasiya JV, Chauhan P, Sumesh CK, Patel V, Soni SS, Patel KD, Garg P, Solanki GK, Pathak VM. Synergistic 2D MoSe 2@WSe 2 nanohybrid heterostructure toward superior hydrogen evolution and flexible supercapacitor. NANOSCALE 2022; 14:6636-6647. [PMID: 35438095 DOI: 10.1039/d2nr00632d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional (2D) transition metal dichalcogenide (TMDC) heterostructure is a new age strategy to achieve high electrocatalytic activity and ion storage capacity. The less complex and cost-effective applicability of the large-area TMDC heterostructure (HS) for energy applications require more research. Herein, we report the MoSe2@WSe2 nanohybrid HS electrocatalyst prepared using liquid exfoliated nanocrystals, followed by direct electrophoretic deposition (EPD). The improved catalytic activity is attributed to the exposure of catalytic active sites on the edge of nanocrystals after liquid exfoliation and the synergistic effect arises at HS interfaces between the MoSe2 and WSe2 nanocrystals. As predicted, the HS catalyst achieves a lower overpotential of 158 mV, a smaller Tafel slope of 46 mV dec-1 for a current density of 10 mA cm-2, and is stable for a long time. The flexible symmetric supercapacitor (FSSC) based on the HS catalyst demonstrates the excellent specific capacitance (Csp) of 401 F g-1 at 1 A g-1, 97.20% capacitance retention after 5000 cycles and high flexible stability over 1000 bending cycles. This work presents a less complex and solution-processed efficient catalyst for future electrochemical energy applications.
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Affiliation(s)
- Alkesh B Patel
- Department of Physics, Sardar Patel University, Shahid Chowk, Vallabh Vidyanagar, Anand 388 120, Gujarat, India.
- Deparment of Paramedical Science, Charotar Institute of Paramedical Sciences, CHARUSAT Campus, Highway 139, Off. Nadiad-Petlad Road, Changa 388421, Gujarat, India
| | - Jayraj V Vaghasiya
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar-388 120, Gujarat, India.
| | - Payal Chauhan
- Department of Physics, Sardar Patel University, Shahid Chowk, Vallabh Vidyanagar, Anand 388 120, Gujarat, India.
| | - C K Sumesh
- Department of Physical Sciences, P. D. Patel Institute of Applied Science, CHARUSAT Campus, Highway 139, Off. Nadiad-Petlad Road, Changa 388421, Gujarat, India
| | - Vikas Patel
- Sophisticated Instrumentation Centre for Applied Research and Testing (SICART), Mota Bazaar, Vallabh Vidyanagar, Anand 388 120, Gujarat, India
| | - Saurabh S Soni
- Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar-388 120, Gujarat, India.
| | - Kireetkumar D Patel
- Department of Physics, Sardar Patel University, Shahid Chowk, Vallabh Vidyanagar, Anand 388 120, Gujarat, India.
| | - Parveen Garg
- UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452001, India
| | - Gunvant K Solanki
- Department of Physics, Sardar Patel University, Shahid Chowk, Vallabh Vidyanagar, Anand 388 120, Gujarat, India.
| | - Vivek M Pathak
- Department of Physics, Sardar Patel University, Shahid Chowk, Vallabh Vidyanagar, Anand 388 120, Gujarat, India.
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22
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Wells RA, Zhang M, Chen TH, Boureau V, Caretti M, Liu Y, Yum JH, Johnson H, Kinge S, Radenovic A, Sivula K. High Performance Semiconducting Nanosheets via a Scalable Powder-Based Electrochemical Exfoliation Technique. ACS NANO 2022; 16:5719-5730. [PMID: 35290010 DOI: 10.1021/acsnano.1c10739] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The liquid-phase exfoliation of semiconducting transition metal dichalcogenide (TMD) powders into 2D nanosheets represents a promising route toward the scalable production of ultrathin high-performance optoelectronic devices. However, the harsh conditions required negatively affect the semiconducting properties, leading to poor device performance. Herein we demonstrate a gentle exfoliation method employing standard bulk MoS2 powder (pressed into pellets) together with the electrochemical intercalation of a quaternary alkyl ammonium. The resulting nanosheets are produced in high yield (32%) and consist primarily of mono-, bi-, triatomic layers with large lateral dimensions (>1 μm), while retaining the semiconducting polymorph. Exceptional optoelectronic performance of nanosheet thin-films is observed, such as enhanced photoluminescence, charge carrier mobility (up to 0.2 cm2 V-1 s-1 in a multisheet device), and photon-to-current efficiency while maintaining high transparency (>80%). Specifically, as a photoanode for iodide oxidation, an internal quantum efficiency up to 90% (at +0.3 V vs Pt) is achieved (compared to only 12% for MoS2 nanosheets produced via ultrasonication). Further using a combination of fluorescence microscopy and high-resolution scanning transmission electron microscopy (STEM), we show that our gently exfoliated nanosheets possess a defect density (2.33 × 1013 cm-2) comparable to monolayer MoS2 prepared by vacuum-based techniques and at least three times less than ultrasonicated MoS2 nanoflakes. Finally, we expand this method toward other TMDs (WS2, WSe2) to demonstrate its versatility toward high-performance and fully scalable van der Waals heterojunction devices.
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Affiliation(s)
- Rebekah A Wells
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Miao Zhang
- Laboratory of Nanoscale Biology (LBEN), Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Tzu-Heng Chen
- Laboratory of Nanoscale Biology (LBEN), Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Victor Boureau
- Interdisciplinary Center for Electron Microscopy (CIME), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Marina Caretti
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Yongpeng Liu
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Jun-Ho Yum
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Hannah Johnson
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Advanced Materials Research, Toyota Motor Europe, B-1930 Zaventem, Belgium
| | - Sachin Kinge
- Advanced Materials Research, Toyota Motor Europe, B-1930 Zaventem, Belgium
| | - Aleksandra Radenovic
- Laboratory of Nanoscale Biology (LBEN), Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Kevin Sivula
- Laboratory for Molecular Engineering of Optoelectronic Nanomaterials (LIMNO), Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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23
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Wan Y, Liu J, Pi F, Wang J. Advances on removal of organophosphorus pesticides with electrochemical technology. Crit Rev Food Sci Nutr 2022; 63:8850-8867. [PMID: 35426753 DOI: 10.1080/10408398.2022.2062586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Widespread use of organophosphorus pesticides (OPs), especially superfluous and unreasonable use, had brought huge harm to the environment and food chain. It is because only a small part of the pesticides sprayed reached the target, and the rest slid across the soil, causing pollution of groundwater and surface water resources. These pesticides accumulate in the environment, causing environmental pollution. Therefore, in recent years, the control and degradation of OPs have become a public spotlight and research hotspot. Due to its unique advantages such as versatility, environmental compatibility, controllability, and cost-effectiveness compatibility, electrochemical technology has become one of the most promising methods for degradation of OPs. The fundamental knowledge about electrochemical degradation on OPs was introduced in this review. Then, a comprehensive overview of four main types of practical electrochemical technologies to degrade pesticides were presented and evaluated. The knowledge contained herein should conduce to better understand the degradation of pesticides by electrochemical technology, and better exploit the degradation of pesticides in the environment and food. Overall, the objective of this review is to provide comprehensive guidance for rational design and application of electrochemical technology in the degradation of OPs for the safety of the environment and food chain in the future.
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Affiliation(s)
- Yuqi Wan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Jinghan Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Fuwei Pi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
- Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
| | - Jiahua Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, People's Republic of China
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24
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Brune V, Hegemann C, Wilhelm M, Ates N, Mathur S. Molecular Precursors to Group IV Dichalcogenides MS2 (M = Ti, Zr, Hf). Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Veronika Brune
- University of Cologne: Universitat zu Koln Chemie Greinstraße 6 50939 Cologne GERMANY
| | | | | | | | - Sanjay Mathur
- Institut für Anorganische Chemie Universität zu Köln Anorganische Chemie Greinstr. 6 50939 Köln GERMANY
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25
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Li S, Xu W, Meng L, Tian W, Li L. Recent Progress on Semiconductor Heterojunction‐Based Photoanodes for Photoelectrochemical Water Splitting. SMALL SCIENCE 2022. [DOI: 10.1002/smsc.202100112] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Shengnan Li
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Weiwei Xu
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Linxing Meng
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Wei Tian
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
| | - Liang Li
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Center for Energy Conversion Materials & Physics (CECMP) Soochow University Suzhou 215006 P. R. China
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26
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Sherrell PC, Fronzi M, Shepelin NA, Corletto A, Winkler DA, Ford M, Shapter JG, Ellis AV. A bright future for engineering piezoelectric 2D crystals. Chem Soc Rev 2021; 51:650-671. [PMID: 34931635 DOI: 10.1039/d1cs00844g] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The piezoelectric effect, mechanical-to-electrical and electrical-to-mechanical energy conversion, is highly beneficial for functional and responsive electronic devices. To fully exploit this property, miniaturization of piezoelectric materials is the subject of intense research. Indeed, select atomically thin 2D materials strongly exhibit the piezoelectric effect. The family of 2D crystals consists of over 7000 chemically distinct members that can be further manipulated in terms of strain, functionalization, elemental substitution (i.e. Janus 2D crystals), and defect engineering to induce a piezoelectric response. Additionally, most 2D crystals can stack with other similar or dissimilar 2D crystals to form a much greater number of complex 2D heterostructures whose properties are quite different to those of the individual constituents. The unprecedented flexibility in tailoring 2D crystal properties, coupled with their minimal thickness, make these emerging highly attractive for advanced piezoelectric applications that include pressure sensing, piezocatalysis, piezotronics, and energy harvesting. This review summarizes literature on piezoelectricity, particularly out-of-plane piezoelectricity, in the vast family of 2D materials as well as their heterostructures. It also describes methods to induce, enhance, and control the piezoelectric properties. The volume of data and role of machine learning in predicting piezoelectricity is discussed in detail, and a prospective outlook on the 2D piezoelectric field is provided.
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Affiliation(s)
- Peter C Sherrell
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.
| | - Marco Fronzi
- School of Mathematical and Physical Science, University of Technology Sydney, Ultimo, New South Wales, 2007, Australia.,Shibaura Institute of Technology, SIT Research Laboratories, 3-7-5, Toyosu, Koto-ku, Tokyo, 135-8548, Japan.
| | - Nick A Shepelin
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia. .,Laboratory for Multiscale Materials Experiments, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
| | - Alexander Corletto
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia. .,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - David A Winkler
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.,School of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Kingsbury Drive, Bundoora, Victoria 3086, Australia.,School of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, UK
| | - Mike Ford
- School of Mathematical and Physical Science, University of Technology Sydney, Ultimo, New South Wales, 2007, Australia
| | - Joseph G Shapter
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Amanda V Ellis
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.
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27
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Xu X, Xu W, Zhang L, Liu G, Wang X, Zhong W, Du Y. Interface engineering heterostructured MoS2/WS2-reduced graphene Oxide for enhanced hydrogen Evolution electrocatalysts. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Matveev AT, Konopatsky AS, Leybo DV, Volkov IN, Kovalskii AM, Varlamova LA, Sorokin PB, Fang X, Kulinich SA, Shtansky DV. Amorphous MoS xO y/ h-BN xO y Nanohybrids: Synthesis and Dye Photodegradation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3232. [PMID: 34947581 PMCID: PMC8703645 DOI: 10.3390/nano11123232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022]
Abstract
Molybdenum sulfide is a very promising catalyst for the photodegradation of organic pollutants in water. Its photocatalytic activity arises from unsaturated sulfur bonds, and it increases with the introduction of structural defects and/or oxygen substitutions. Amorphous molybdenum sulfide (a-MoSxOy) with oxygen substitutions has many active sites, which create favorable conditions for enhanced catalytic activity. Here we present a new approach to the synthesis of a-MoSxOy and demonstrate its high activity in the photodegradation of the dye methylene blue (MB). The MoSxOy was deposited on hexagonal boron oxynitride (h-BNO) nanoflakes by reacting h-BNO, MoCl5, and H2S in dimethylformamide (DMF) at 250 °C. Both X-ray diffraction analysis and high-resolution TEM show the absence of crystalline order in a-MoSxOy. Based on the results of Raman and X-ray photoelectron spectroscopy, as well as analysis by the density functional theory (DFT) method, a chain structure of a-MoSxOy was proposed, consisting of MoS3 clusters with partial substitution of sulfur by oxygen. When a third of the sulfur atoms are replaced with oxygen, the band gap of a-MoSxOy is approximately 1.36 eV, and the valence and conduction bands are 0.74 eV and -0.62 eV, respectively (relative to a standard hydrogen electrode), which satisfies the conditions of photoinduced splitting of water. When illuminated with a mercury lamp, a-MoSxOy/h-BNxOy nanohybrids have a specific mass activity in MB photodegradation of approximately 5.51 mmol g-1 h-1, which is at least four times higher than so far reported values for nonmetal catalysts. The photocatalyst has been shown to be very stable and can be reused.
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Affiliation(s)
- Andrei T. Matveev
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Anton S. Konopatsky
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Denis V. Leybo
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Ilia N. Volkov
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Andrey M. Kovalskii
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Liubov A. Varlamova
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Pavel B. Sorokin
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai 200433, China;
| | - Sergei A. Kulinich
- Research Institute of Science and Technology, Tokai University, Hiratsuka 259-1292, Kanagawa, Japan
- School of Engineering, Far Eastern Federal University, 690041 Vladivostok, Russia
| | - Dmitry V. Shtansky
- Laboratory of Inorganic Nanomaterials, National University of Science and Technology “MISIS”, Leninskiy Prospect 4, 119049 Moscow, Russia; (A.S.K.); (D.V.L.); (I.N.V.); (A.M.K.); (L.A.V.); (P.B.S.); (D.V.S.)
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Zhong C, Kato D, Ogawa K, Tassel C, Izumi F, Suzuki H, Kawaguchi S, Saito T, Saeki A, Abe R, Kageyama H. Bi 4AO 6Cl 2 ( A = Ba, Sr, Ca) with Double and Triple Fluorite Layers for Visible-Light Water Splitting. Inorg Chem 2021; 60:15667-15674. [PMID: 34596398 DOI: 10.1021/acs.inorgchem.1c02344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Layered oxyhalides containing double or triple fluorite layers are promising visible-light-responsive water-splitting photocatalysts with unique band structures. Herein, we report on the synthesis, structure, and photocatalytic property of Bi4BaO6Cl2 (I4/mmm) with alternating double (Bi2O2) and triple (Bi2BaO4) fluorite layers, which was extracted from the crystallographic database on the basis of Madelung potential calculations. Rietveld refinements from powder X-ray and neutron diffraction data revealed the presence of cationic disorder between Bi2O2 and Bi2BaO4 layers, leading to electrostatic stabilization. DFT calculations suggested that photogenerated electrons and holes flow through the double and triple layers, respectively, which may suppress electron-hole recombination. We expanded this double-triple system to include Bi4CaO6Cl2 and Bi4SrO6Cl2 with orthorhombic distortions and different degrees of cationic disorder, which allow band gap tuning. All the double-triple compounds Bi4AO6Cl2 showed stable water-splitting photocatalysis in the presence of a sacrificial reagent.
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Affiliation(s)
- Chengchao Zhong
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Daichi Kato
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kanta Ogawa
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Cédric Tassel
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Fujio Izumi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hajime Suzuki
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shogo Kawaguchi
- SPring-8, Japan Synchrotron Radiation Research Institute, Hyogo 679-5198, Japan
| | - Takashi Saito
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1106, Japan.,Materials and Life Science Division, J-PARC Center, Tokai, Naka, Ibaraki 319-1195, Japan.,SOKENDAI (School of High Energy Accelerator Science, the Graduate University for Advanced Studies), Tokai, Ibaraki 319-1195, Japan
| | - Akinori Saeki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryu Abe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroshi Kageyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Plutnar J, Pumera M. Applications of Atomic Layer Deposition in Design of Systems for Energy Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102088. [PMID: 34365720 DOI: 10.1002/smll.202102088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/07/2021] [Indexed: 06/13/2023]
Abstract
There is a huge demand for clean energy conversion in all industries. The clean energy production processes include electrocatalytic and photocatalytic conversion of water to hydrogen, carbon dioxide reduction, nitrogen conversion to ammonia, and oxygen reduction reaction and require novel cheap and efficient photo- and electrocatalysts and their scalable methods of fabrication. Atomic layer deposition is a thin film deposition method that allows to deposit thin layers of catalysts on virtually any surface of any shape, size, and porosity in an even and easy to control manner. Here the state of the art in applications of atomic layer deposition in the clean energy production and the opportunities it represents for the whole field of the photo- and electrocatalysis for a sustainable future are reviewed.
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Affiliation(s)
- Jan Plutnar
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic
| | - Martin Pumera
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, 61200, Czech Republic
- Department of Chemistry, Mendel University, Zemedelska 1, Brno, 61300, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Korea
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Chen IWP, Lai YM, Liao WS. One-Pot Synthesis of Chlorophyll-Assisted Exfoliated MoS 2/WS 2 Heterostructures via Liquid-Phase Exfoliation Method for Photocatalytic Hydrogen Production. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2436. [PMID: 34578753 PMCID: PMC8469628 DOI: 10.3390/nano11092436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 11/25/2022]
Abstract
Developing strategies for producing hydrogen economically and in greener ways is still an unaccomplished goal. Photoelectrochemical (PEC) water splitting using photoelectrodes under neutral electrolyte conditions provides possibly one of the greenest routes to produce hydrogen. Here, we demonstrate that chlorophyll extracts can be used as an efficient exfoliant to exfoliate bulk MoS2 and WS2 to form a thin layer of a MoS2/WS2 heterostructure. Thin films of solution-processed MoS2 and WS2 nanosheets display photocurrent densities of -1 and -5 mA/cm2, respectively, and hydrogen evolution under simulated solar irradiation. The exfoliated WS2 is significantly more efficient than the exfoliated MoS2; however, the MoS2/WS2 heterostructure results in a 2500% increase in photocurrent densities compared to the individual constituents and over 12 h of PEC durability under a neutral electrolyte. Surprisingly, in real seawater, the MoS2/WS2 heterostructure exhibits stable hydrogen production after solar illumination for 12 h. The synthesis method showed, for the first time, how the MoS2/WS2 heterostructure can be used to produce hydrogen effectively. Our findings highlight the prospects for this heterostructure, which could be coupled with various processes towards improving PEC efficiency and applications.
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Affiliation(s)
- I-Wen P. Chen
- Department of Applied Science, National Taitung University, 369, Sec. 2, University Rd., Taitung City 95092, Taiwan; (Y.-M.L.); (W.-S.L.)
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Zheng D, Chen M, Peng J, Chen J, Chen T, Chen Y, Huang L, Gao W. An enhanced photoelectrochemical biosensor for colitoxin DNA based on HKUST-1/TiO 2 and derived HKUST-CuO/TiO 2 heterogeneous composites. Mikrochim Acta 2021; 188:328. [PMID: 34495380 DOI: 10.1007/s00604-021-04999-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/24/2021] [Indexed: 11/26/2022]
Abstract
HKUST-1 MOFs and its derivative HKUST-CuO were coupled with TiO2 nanoparticles to form the heterogeneous composites of HKUST-1/TiO2 and HKUST-CuO/TiO2 based on their well-suitable bandgap energies (Eg). Compared with mono-component HKUST-1 or HKUST-CuO, the prepared composites displayed photoelectrochemical (PEC) response due to the synergistic effect from their heterogeneous structure. Higher photocurrent response was obtained on HKUST-CuO/TiO2-modified ITO electrode (HKUST-CuO/TiO2/ITO), which could be attributed to the hollow structure with a thin shell of HKUST-CuO greatly enhancing visible spectra harvesting. The CuO component in HKUST-CuO not only could accelerate electron transfer on the heterojunction interface but also effectively separate the photo-generated charge carriers (e-1/h+). Based on the excellent PEC performance of prepared photoactive composite material, under visible-light excitation (λ ≥ 420 nm) and with a working potential of 0 V (vs. Ag/AgCl), the S1 (probe DNA)/HKUST-CuO/TiO2/ITO PEC platform was successfully fabricated for colitoxin DNA detection without using ascorbic acid (AA) as an electron donor. Compared with the analysis results on S1/HKUST-1/TiO2/ITO electrode, S1/HKUST-CuO/TiO2/ITO displayed a wider linear response range from 1.0 × 10-6 to 4.0 × 10-1 nM with a lower detection limit of 3.73 × 10-7 nM (S/N = 3), the linear regression equation was ΔI (10-6 A) =0.5549-0.1858 log (CS2/M), which confirmed the HKUST-CuO could improve sensitivity because of its prominent PEC property. The relative standard deviation (RSD) of the PEC sensor for target DNA detection of 2.0 × 10-4 nM was 7.4%. The proposed DNA biosensor also possessed good specificity and stability. Hence, this reported work was a promising strategy for molecular diagnosis in the bio-analysis field. (A) Schematic illustration of the preparation process of the proposed PEC biosensors for colitoxin DNA detection. (B) The preparation process of HKUST-1 and HKUST-CuO.
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Affiliation(s)
- Delun Zheng
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
- Department of Natural Sciences, Shantou Polytechnic, Shantou, Guangdong, 515078, People's Republic of China
| | - Min Chen
- Shantou Food Inspection and Testing Center, Shantou, Guangdong, 515041, People's Republic of China
| | - Jingjun Peng
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Jiayang Chen
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Tufeng Chen
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Yaowen Chen
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China
| | - Linjia Huang
- Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510665, People's Republic of China.
| | - Wenhua Gao
- Department of Chemistry and Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong, 515063, People's Republic of China.
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Masoumi Z, Tayebi M, Kolaei M, Tayyebi A, Ryu H, Jang JI, Lee BK. Simultaneous Enhancement of Charge Separation and Hole Transportation in a W:α-Fe 2O 3/MoS 2 Photoanode: A Collaborative Approach of MoS 2 as a Heterojunction and W as a Metal Dopant. ACS APPLIED MATERIALS & INTERFACES 2021; 13:39215-39229. [PMID: 34374510 DOI: 10.1021/acsami.1c08139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, a facile approach has been successfully applied to synthesize a W-doped Fe2O3/MoS2 core-shell electrode with unique nanostructure modifications for photoelectrochemical performance. A two-dimensional (2D) structure of molybdenum disulfide (MoS2) and tungsten (W)-doped hematite (W:α-Fe2O3) overcomes the drawbacks of the α-Fe2O3 and MoS2 semiconductor through simple and facile processes to improve the photoelectrochemical (PEC) performance. The highest photocurrent density of the 0.5W:α-Fe2O3/MoS2 photoanode is 1.83 mA·cm-2 at 1.23 V vs reversible hydrogen electrode (RHE) under 100 mW·cm2 illumination, which is higher than those of 0.5W:α-Fe2O3 and pure α-Fe2O3 electrodes. The overall water splitting was evaluated by measuring the H2 and O2 evolution, which after 2 h of irradiation for 0.5W:α-Fe2O3/MoS2 was determined to be 49 and 23.8 μmol.cm-2, respectively. The optimized combination of the heterojunction and metal doping on pure α-Fe2O3 (0.5W:α-Fe2O3/MoS2 photoanode) showed an incident photon-to-electron conversion efficiency (IPCE) of 37% and an applied bias photon-to-current efficiency (ABPE) of 26%, which are around 5.2 and 13 times higher than those of 0.5W:α-Fe2O3, respectively. Moreover, the facile fabrication strategy can be easily extended to design other oxide/carbon-sulfide/oxide core-shell materials for extensive applications.
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Affiliation(s)
- Zohreh Masoumi
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea
| | - Meysam Tayebi
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea
| | - Morteza Kolaei
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea
| | - Ahmad Tayyebi
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hongsun Ryu
- Department of Physics, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107 South Korea
| | - Joon I Jang
- Department of Physics, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107 South Korea
| | - Byeong-Kyu Lee
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea
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Kasinathan K, Marimuthu K, Murugesan B, Samayanan S, Cai Y, Rathinam C. Facile synthesis of highly biologically active chitosan functionalized 2D WS2 nanocomposite anchored with palladium nanoparticles for antibacterial and anticancer activity: In-vitro biomedical evaluation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116582] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Li F, Benetti D, Zhang M, Feng J, Wei Q, Rosei F. Modulating the 0D/2D Interface of Hybrid Semiconductors for Enhanced Photoelectrochemical Performances. SMALL METHODS 2021; 5:e2100109. [PMID: 34927862 DOI: 10.1002/smtd.202100109] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/29/2021] [Indexed: 06/14/2023]
Abstract
Photoelectrochemical (PEC) solar-driven hydrogen production is a promising route to convert solar energy into chemical energy using semiconductors as active materials. However, the performance is still far from satisfactory due to a limited absorption range and rapid charge recombination. Compared to 3D semiconductors, 0D/2D nanohybrids may exhibit better PEC performance, due to the formation of an intimate interface between the two semiconductors that can inhibit carrier recombination. Herein, a photoelectrode based on a 0D/2D heterojunction is constructed by 0D metal chalcogenide quantum dots (QDs) and hierarchical 2D Zn-MoS2 nanosheets (NSs). The effect of PbS, CdS, and their composite PbS@CdS QDs is analyzed by depositing them onto Zn-MoS2 NSs using an in situ process. This distinctive heterojunction can leverage the light harvesting capabilities of QDs with the catalytic performance of Zn-MoS2 . Compared to Zn-MoS2 , Zn-MoS2 /PbS, and Zn-MoS2 /CdS, the obtained 0D/2D heterostructure based on the composite Zn-MoS2 /PbS@CdS has a significantly enhanced photocurrent. The synergistic effect between 0D/2D heterojunction, the extended absorption range of QDs, and the strong coupling and band alignment between them lead to superior solar-driven PEC performance. This work can provide a new platform to construct multifunctional 0D/2D nanohybrids for optoelectronic applications, not limited to PEC devices.
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Affiliation(s)
- Faying Li
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, J3X 1S2 Varennes, Québec, Canada
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Daniele Benetti
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, J3X 1S2 Varennes, Québec, Canada
| | - Min Zhang
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, J3X 1S2 Varennes, Québec, Canada
| | - Jinhui Feng
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Federico Rosei
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boul. Lionel Boulet, J3X 1S2 Varennes, Québec, Canada
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
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Arefi-Oskoui S, Khataee A, Ucun OK, Kobya M, Hanci TÖ, Arslan-Alaton I. Toxicity evaluation of bulk and nanosheet MoS 2 catalysts using battery bioassays. CHEMOSPHERE 2021; 268:128822. [PMID: 33162164 DOI: 10.1016/j.chemosphere.2020.128822] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 06/11/2023]
Abstract
Herein, the main aim is to study the influence of the materials' structural properties on their ecotoxicological properties. The acute toxicity of the bulk (molybdenum disulfide) MoS2 and 2D nanosheet MoS2 was investigated using organisms of four different taxonomic groups. Ultrasound-assisted liquid-phase exfoliation method was used for preparing 2D nanosheets from bulk MoS2. Bulk and nanosheet MoS2 were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD) analyses. The acute toxicity of the bulk and nanosheet MoS2 catalysts was evaluated with four different bioassays using the test organisms Vibrio fischeri (a marine photobacterium), Pseudokirchnerialla subcapitata (a freshwater microalga), Daphnia magna (a freshwater crustacean) and the freshwater duckweed Spirodela polyrhiza. The toxic effect of the materials depended on their structural/size features and the type/sensitivity of the test organism. Generally speaking, bulk MoS2 was more toxic than its nanosheet form. The freshwater crustacean Daphnia magna appeared to be the most suitable, easy-to-handle, and at the same time sensitive test organism for bulk and nanosheet MoS2 among the tested organisms.
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Affiliation(s)
- Samira Arefi-Oskoui
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey.
| | - Olga Koba Ucun
- School of Civil Engineering, Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Mehment Kobya
- Department of Environmental Engineering, Gebze Technical University, 41400, Gebze, Turkey; Kyrgyz-Turkish Manas University, Department of Environmental Engineering, Bishkek, Kyrgyzstan
| | - Tuğba Ölmez Hanci
- School of Civil Engineering, Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Idil Arslan-Alaton
- School of Civil Engineering, Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
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Masoumi Z, Tayebi M, Lee BK. Ultrasonication-assisted liquid-phase exfoliation enhances photoelectrochemical performance in α-Fe 2O 3/MoS 2 photoanode. ULTRASONICS SONOCHEMISTRY 2021; 72:105403. [PMID: 33360532 PMCID: PMC7803682 DOI: 10.1016/j.ultsonch.2020.105403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/08/2020] [Accepted: 11/09/2020] [Indexed: 05/08/2023]
Abstract
This study successfully manufactured a p-n heterojunction hematite (α-Fe2O3) structure with molybdenum disulfide (MoS2) to address the electron-hole transfer problems of conventional hematite to enhance photoelectrochemical (PEC) performance. The two-dimensional MoS2 nanosheets were prepared through ultrasonication-assisted liquid-phase exfoliation, after which the concentration, number of layers, and thickness parameters of the MoS2 nanosheets were respectively estimated by UV-vis, HRTEM and AFM analysis to be 0.37 mg/ml, 10-12 layers and around 6 nm. The effect of heterojunction α-Fe2O3/MoS2 and the role of the ultrasonication process were investigated by the optimized concentration of MoS2 in the forms of bulk and nanosheet on the surface of the α-Fe2O3 electrode while measuring the PEC performance. The best photocurrent density of the α-Fe2O3/MoS2 photoanode was obtained at 1.52 and 0.86 mA.cm-2 with good stability at 0.6 V vs. Ag/AgCl under 100 mW/cm2 (AM 1.5) illumination from the back- and front-sides of α-Fe2O3/MoS2; these values are 13.82 and 7.85-times higher than those of pure α-Fe2O3, respectively. The results of electrochemical impedance spectroscopy (EIS) and Mott-Schottky analysis showed increased donor concentration (2.6-fold) and decreased flat band potential (by 20%). Moreover, the results of IPCE, ABPE, and OCP analyses also supported the enhanced PEC performance of α-Fe2O3/MoS2 through the formation of a p-n heterojunction, leading to a facile electron-hole transfer.
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Affiliation(s)
- Zohreh Masoumi
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea
| | - Meysam Tayebi
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea.
| | - Byeong-Kyu Lee
- Department of Civil and Environment Engineering, University of Ulsan, Daehakro 93, Namgu, Ulsan 44610, Republic of Korea.
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Tang R, Zhou S, Zhang Z, Zheng R, Huang J. Engineering Nanostructure-Interface of Photoanode Materials Toward Photoelectrochemical Water Oxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005389. [PMID: 33733537 DOI: 10.1002/adma.202005389] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/19/2020] [Indexed: 06/12/2023]
Abstract
Photoelectrochemical (PEC) water oxidation based on semiconductor materials plays an important role in the production of clean fuel and value-added chemicals. Nanostructure-interface engineering has proven to be an effective way to construct highly efficient PEC water oxidation photoanodes with good light capture, carrier transport, and water oxidation kinetics. However, from theoretical and application perspectives, the relationship between the nanostructure and interface of photoanode materials and their PEC performance remains unclear. In this review, the PEC water oxidation reaction mechanism and evaluation criteria are briefly presented. The theoretical basis and research status of the nanostructure-interface engineering on constructing high-performance PEC water oxidation photoanodes are summarized and discussed. Finally, the current challenges and the future opportunities of nanostructure-interface engineering for the PEC reactions are pointed out.
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Affiliation(s)
- Rui Tang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China
- Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- School of Physics, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Shujie Zhou
- Particles and Catalysis Research Group, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Zhenyu Zhang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China
| | - Rongkun Zheng
- Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- School of Physics, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Jun Huang
- Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2037, Australia
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Sayed MS, Mohapatra D, Baynosa ML, Shim JJ. Three-dimensional core-shell heterostructure of tungsten trioxide/bismuth molybdate/cobalt phosphate for enhanced photoelectrochemical water splitting. J Colloid Interface Sci 2021; 598:348-357. [PMID: 33910070 DOI: 10.1016/j.jcis.2021.03.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 11/27/2022]
Abstract
Hydrogen has attracted increasing attention as clean energy for fuel cells over the past decade. Photoelectrochemical (PEC) water splitting is considered the most feasible production method but its practical efficiency depends significantly on the photogeneration rate of electron (e-) and hole (h+) on a semiconductor photoanode and the rapid separation of these charge carriers. A proper match of small and large bandgap positions is also necessary. This paper presents a three-dimensional core-shell heterostructured tungsten trioxide/bismuth molybdate/cobalt phosphate (WO3/Bi2MoO6/Co-Pi) photocatalyst synthesized using simultaneous hydrothermal and electrodeposition techniques. Uniform Bi2MoO6 nanoflakes formed on WO3 nanoplates as evidenced by various micro-spectroscopic techniques. The as-prepared WO3/Bi2MoO6/Co-Pi hetero-photocatalyst exhibited significantly high photoelectrochemical activity, where its photocurrent efficiency was 4.6 times greater than that of the constituent WO3. Such drastic improvement in the PEC properties can be corroborated by the appropriate bandgap alignment among WO3, Bi2MoO6, and Co-Pi, resulting in a sufficient charge carrier density with efficient, fast charge-transport complementing their structural-morphological synergy. Furthermore, a heterojunction charge-transfer mechanism was proposed to verify the role of the co-catalyst, Co-Pi, in enhancing the photocurrent at the WO3/Bi2MoO6 photoanode under the same applied bias.
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Affiliation(s)
- Mostafa Saad Sayed
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Debananda Mohapatra
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Marjorie Lara Baynosa
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea; Department of Chemical Engineering, University of the Philippines-Diliman, Diliman, Quezon City 1101, Philippines
| | - Jae-Jin Shim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
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40
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Chen Y, Sun M. Two-dimensional WS 2/MoS 2 heterostructures: properties and applications. NANOSCALE 2021; 13:5594-5619. [PMID: 33720254 DOI: 10.1039/d1nr00455g] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The successful fabrication of WS2/MoS2 heterostructures provides more possibilities for optoelectronic and thermoelectric applications than graphene because of their direct bandgap characteristics; therefore, scientific investigations on WS2/MoS2 heterostructures are more significant and thriving. In this paper, we review the latest research progress in WS2/MoS2 heterostructures, and look forward to their properties and applications. Firstly, we analyze the crystal structure and electronic structure of WS2, MoS2, and their heterostructures. Secondly, we comprehensively present the widely used methods for preparing heterostructures. Finally, based on the unique physical characteristics of WS2/MoS2 heterostructures, we focus on their properties and applications in mechanics, electronics, optoelectronics, and thermoelectronics.
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Affiliation(s)
- Yichuan Chen
- School of Mathematics and Physics, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
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Wang Z, Altmann P, Gadermaier C, Yang Y, Li W, Ghirardini L, Trovatello C, Finazzi M, Duò L, Celebrano M, Long R, Akinwande D, Prezhdo OV, Cerullo G, Dal Conte S. Phonon-Mediated Interlayer Charge Separation and Recombination in a MoSe 2/WSe 2 Heterostructure. NANO LETTERS 2021; 21:2165-2173. [PMID: 33591207 DOI: 10.1021/acs.nanolett.0c04955] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Monolayer transition metal dichalcogenides bear great potential for photodetection and light harvesting due to high absorption coefficients. However, these applications require dissociation of strongly bound photogenerated excitons. The dissociation can be achieved by vertically stacking different monolayers to realize band alignment that favors interlayer charge transfer. In such heterostructures, the reported recombination times vary strongly, and the charge separation and recombination mechanisms remain elusive. We use two color pump-probe microscopy to demonstrate that the charge separation in a MoSe2/WSe2 heterostructure is ultrafast (∼200 fs) and virtually temperature independent, whereas the recombination accelerates strongly with temperature. Ab initio quantum dynamics simulations rationalize the experiments, indicating that the charge separation is temperature-independent because it is barrierless, involves dense acceptor states, and is promoted by higher-frequency out-of-plane vibrations. The strong temperature dependence of the recombination, on the other hand, arises from a transient indirect-to-direct bandgap modulation by low-frequency shear and layer breathing motions.
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Affiliation(s)
- Zilong Wang
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Patrick Altmann
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Christoph Gadermaier
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
- Center for Nano Science and Technology, Italian Institute of Technology, Via Pascoli 70/3, I-20133 Milano, Italy
| | - Yating Yang
- College of Chemistry, Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100085, P.R. China
| | - Wei Li
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 75858, United States
| | - Lavinia Ghirardini
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Chiara Trovatello
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Marco Finazzi
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Lamberto Duò
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Michele Celebrano
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100085, P.R. China
| | - Deji Akinwande
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, Texas 75858, United States
| | - Oleg V Prezhdo
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- IFN-CNR, Piazza L. da Vinci 32, I-20133 Milano, Italy
| | - Giulio Cerullo
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Stefano Dal Conte
- Dipartimento di Fisica, Politecnico di Milano, Piazza L. da Vinci 32, I-20133 Milano, Italy
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Vikraman D, Hussain S, Patil SA, Truong L, Arbab AA, Jeong SH, Chun SH, Jung J, Kim HS. Engineering MoSe 2/WS 2 Hybrids to Replace the Scarce Platinum Electrode for Hydrogen Evolution Reactions and Dye-Sensitized Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5061-5072. [PMID: 33470112 DOI: 10.1021/acsami.0c19890] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In recent times, two-dimensional transition-metal dichalcogenides (TMDs) have become extremely attractive and proficient electrodes for dye-sensitized solar cells (DSSCs) and water electrolysis hydrogen evolution as alternatives to the scarce metal platinum (Pt). The active TMD molybdenum selenide (MoSe2) and tungsten disulfide (WS2) are inspiring systems owing to their abundance of active sulfur and selenium sites, but their outputs are lacking due to their inactive basal planes and ineffective transport behavior. In this work, van der Waals interrelated MoSe2/WS2 hybrid structures were constructed on conducting glass substrates by chemicophysical methodologies. For the first time, the constructed MoSe2/WS2 structures were effectively used as a counter electrode for DSSCs and an active electrode for hydrogen evolution to replace the nonabundant Pt. The assembled DSSCs using the designed MoSe2/WS2 heterostructure counter electrode provided a superior power-conversion efficiency of 9.92% and a photocurrent density of 23.10 mA·cm-2, unmatchable by most of the TMD-based structures. The MoSe2/WS2 heterostructure displayed excellent electrocatalytic hydrogen evolution behavior with a 75 mV overpotential to drive a 10 mA·cm-2 current density, a 60 mV·dec-1 Tafel slope, and an over 20 h durable process in an acidic medium. The results demonstrated the advantages of the MoSe2/WS2 hybrid development for generating interfacial transport and active facet distribution and enriching the electrocatalytic activity for DSSCs and the water-splitting hydrogen evolution process.
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Affiliation(s)
- Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Sajjad Hussain
- Hybrid Materials Center (HMC), Sejong University, Seoul 05006, Republic of Korea
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Supriya A Patil
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Linh Truong
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - Alvira Ayoub Arbab
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Sung Hoon Jeong
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Seung-Hyun Chun
- Department of Physics, Sejong University, Seoul 05006, Republic of Korea
| | - Jongwan Jung
- Hybrid Materials Center (HMC), Sejong University, Seoul 05006, Republic of Korea
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
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Zheng H, Lu Y, Ye KH, Hu J, Liu S, Yan J, Ye Y, Guo Y, Lin Z, Cheng J, Cao Y. Atomically thin photoanode of InSe/graphene heterostructure. Nat Commun 2021; 12:91. [PMID: 33398029 PMCID: PMC7782821 DOI: 10.1038/s41467-020-20341-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 11/25/2020] [Indexed: 11/09/2022] Open
Abstract
Achieving high-efficiency photoelectrochemical water splitting requires a better understanding of ion kinetics, e.g., diffusion, adsorption and reactions, near the photoelectrode's surface. However, with macroscopic three-dimensional electrodes, it is often difficult to disentangle the contributions of surface effects to the total photocurrent from that of various factors in the bulk. Here, we report a photoanode made from a InSe crystal monolayer that is encapsulated with monolayer graphene to ensure high stability. We choose InSe among other photoresponsive two-dimensional (2D) materials because of its unique properties of high mobility and strongly suppressing electron-hole pair recombination. Using the atomically thin electrodes, we obtained a photocurrent with a density >10 mA cm-2 at 1.23 V versus reversible hydrogen electrode, which is several orders of magnitude greater than other 2D photoelectrodes. In addition to the outstanding characteristics of InSe, we attribute the enhanced photocurrent to the strong coupling between the hydroxide ions and photo-generated holes near the anode surface. As a result, a persistent current even after illumination ceased was also observed due to the presence of ions trapped holes with suppressed electron-hole recombination. Our results provide atomically thin materials as a platform for investigating ion kinetics at the electrode surface and shed light on developing next-generation photoelectrodes with high efficiency.
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Affiliation(s)
- Haihong Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yizhen Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Kai-Hang Ye
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jinyuan Hu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Shuai Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yu Ye
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing, 100871, China
| | - Yuxi Guo
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Zhan Lin
- Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jun Cheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
| | - Yang Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China. .,Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen, 361005, China.
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Tayebi M, Masoumi Z, Lee BK. Ultrasonically prepared photocatalyst of W/WO 3 nanoplates with WS 2 nanosheets as 2D material for improving photoelectrochemical water splitting. ULTRASONICS SONOCHEMISTRY 2021; 70:105339. [PMID: 32927250 PMCID: PMC7786633 DOI: 10.1016/j.ultsonch.2020.105339] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 08/07/2020] [Accepted: 09/01/2020] [Indexed: 05/04/2023]
Abstract
A sonochemical treatment has been an emerged technique as an interesting method for fabricating different photocatalysts with unique photoelectrochemical (PEC) properties. This study investigated the PEC performance of WO3 with WS2 nanosheets as a 2D material before calcination (WO3/WS2-90) and after calcination (WO3/WS2-450) prepared with sonochemical treatment. The WS2 nanosheets were prepared from a liquid exfoliation phase with few-layer nanosheets, approximately 6.5 nm in thickness. The nanosheets were confirmed by UV-Vis spectroscopy and atomic force microscopy. Further, XPS, RAMAN, and SEM-EDAX analyses indicated that, following calcination of the WO3/WS2 electrode, the WS2 nanosheets initially transformed to 2D-WO3. After depositing the WS2 nanosheets on the WO3, the photocurrent density increased substantially. The WO3/WS2-450 films after calcination showed a photocurrent density of 5.6 mA.cm-2 at 1.23 V vs. Ag/AgCl, which was 3.1 and 7.2 times higher, respectively than those of the WO3/WS2-90 before calcination and pure WO3. Mott-Schottky and electrochemical impedance spectroscopy analyses confirmed the fabrication of the WO3/WS2 photoanode after calcination. The deposition of WS2 nanosheets onto pure WO3 increased the donor concentration (24-fold), reduced the space charge layer (4.6-fold), and decreased the flat band potential (1.6-fold), which could all help improve the photoelectrochemical efficiency. Moreover, the incorporation of WO3 with WS2 nanosheets as a 2D material (WO3/WS2-450) enhanced the incident photon current efficiency (IPCE) by 55%. In addition, the applied-bias photon-to-current conversion efficiency of the WO3/WS2-450 films was approximately 2.26% at 0.75 V (vs. Ag/AgCl), which is 5.6 and 9 times higher, respectively than those of WO3/WS2-90 and pure WO3.
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Affiliation(s)
- Meysam Tayebi
- Department of Civil and Environment Engineering, University of Ulsan, Ulsan, South Korea
| | - Zohreh Masoumi
- Department of Civil and Environment Engineering, University of Ulsan, Ulsan, South Korea
| | - Byeong-Kyu Lee
- Department of Civil and Environment Engineering, University of Ulsan, Ulsan, South Korea.
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Han S, Noh S, Yu YT, Lee CR, Lee SK, Kim JS. Highly Efficient Photoelectrochemical Water Splitting Using GaN-Nanowire Photoanode with Tungsten Sulfides. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58028-58037. [PMID: 33337852 DOI: 10.1021/acsami.0c17811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the present study, we have achieved high-performance photoelectrochemical water splitting (PEC-WS) using GaN nanowires (NWs) coated with tungsten sulfide (WxS1-x) (GaN-NW-WxS1-x) as a photoanode. The measured current density and applied-bias photon-to-current efficiency were 20.38 mA/cm2 and 13.76%, respectively. These values were much higher than those reported previously for photoanodes with any kind of III-nitride nanostructure. The amount of hydrogen gas formed was 1.01 mmol/cm2 from 7 h PEC-WS, which was also much higher than the previously reported values. The drastic improvement in the PEC-WS performance using the GaN-NW-WxS1-x photoanode was attributed to an increase in the number of photogenerated carriers due to the highly crystalline GaN NWs, and acceleration of separation of photogenerated carriers and consequent suppression of charge recombination because of nitrogen-terminated surfaces of NWs, sulfur vacancies in WxS1-x, and type-II band alignment between NW and WxS1-x. The degree of impedance matching, evaluated from Nyquist plots, was considered to analyze charge transfer characteristics at the interface between the GaN-NW-WxS1-x photoanode and 0.5-M H2SO4 electrolyte. Considering the material system and scheme for the PEC-WS, our approach provides an efficient way to improve hydrogen evolution reaction.
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Affiliation(s)
- Sangmoon Han
- Department of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, and Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, South Korea
| | - Siyun Noh
- Department of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, and Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, South Korea
| | - Yeon-Tae Yu
- Department of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, and Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, South Korea
| | - Cheul-Ro Lee
- Department of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, and Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, South Korea
| | - Seoung-Ki Lee
- Applied Quantum Composites Research Center, Korea Institute of Science and Technology, Wanju 55324, South Korea
| | - Jin Soo Kim
- Department of Electronic and Information Materials Engineering, Division of Advanced Materials Engineering, and Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, South Korea
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46
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Chen CJ, Yeh CY, Chen CH, Jena A, Wei DH, Chang H, Hu SF, Liu RS. Molybdenum Tungsten Disulfide with a Large Number of Sulfur Vacancies and Electronic Unoccupied States on Silicon Micropillars for Solar Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54671-54682. [PMID: 33242954 DOI: 10.1021/acsami.0c15905] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogen energy is a promising alternative for fossil fuels because of its high energy density and carbon-free emission. Si is an ideal light absorber used in solar water splitting to produce H2 gas because of its small band gap, appropriate conduction band position, and high theoretical photocurrent. However, the overpotential required to drive the photoelectrochemical (PEC) hydrogen evolution reaction (HER) on bare Si electrodes is severely high owing to its sluggish kinetics. Herein, a molybdenum tungsten disulfide (MoS2-WS2) composite decorated on a Si photoabsorber is used as a cocatalyst to accelerate HER kinetics and enhance PEC performance. This MoS2-WS2 hybrid showed superior catalytic activity compared with pristine MoS2 or WS2. The optimal MoS2-WS2/Si electrode delivered a photocurrent of -25.9 mA/cm2 at 0 V (vs reversible hydrogen electrode). X-ray absorption spectroscopy demonstrated that MoS2-WS2 possessed a high hole concentration of unoccupied electronic states in the MoS2 component, which could promote to accept large amounts of carriers from the Si photoabsorber. Moreover, a large number of sulfur vacancies are generated in the MoS2 constituent of this hybrid cocatalyst. These sulfur defects served as HER active sites to boost the catalytic efficiency. Besides, the TiO2-protective MoS2-WS2/Si photocathode maintained a current density of -15.0 mA/cm2 after 16 h of the photocatalytic stability measurement.
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Affiliation(s)
- Chih-Jung Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Chia-Yu Yeh
- Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Chia-Hsien Chen
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Anirudha Jena
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Da-Hua Wei
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Ho Chang
- Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Shu-Fen Hu
- Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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47
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Shao G, Lu Y, Hong J, Xue X, Huang J, Xu Z, Lu X, Jin Y, Liu X, Li H, Hu S, Suenaga K, Han Z, Jiang Y, Li S, Feng Y, Pan A, Lin Y, Cao Y, Liu S. Seamlessly Splicing Metallic Sn x Mo 1- x S 2 at MoS 2 Edge for Enhanced Photoelectrocatalytic Performance in Microreactor. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002172. [PMID: 33344127 PMCID: PMC7739950 DOI: 10.1002/advs.202002172] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/27/2020] [Indexed: 05/23/2023]
Abstract
Accurate design of the 2D metal-semiconductor (M-S) heterostructure via the covalent combination of appropriate metallic and semiconducting materials is urgently needed for fabricating high-performance nanodevices and enhancing catalytic performance. Hence, the lateral epitaxial growth of M-S Sn x Mo1- x S2/MoS2 heterostructure is precisely prepared with in situ growth of metallic Sn x Mo1- x S2 by doping Sn atoms at semiconductor MoS2 edge via one-step chemical vapor deposition. The atomically sharp interface of this heterostructure exhibits clearly distinguished performance based on a series of characterizations. The oxygen evolution photoelectrocatalytic performance of the epitaxial M-S heterostructure is 2.5 times higher than that of pure MoS2 in microreactor, attributed to the efficient electron-hole separation and rapid charge transfer. This growth method provides a general strategy for fabricating seamless M-S lateral heterostructures by controllable doping heteroatoms. The M-S heterostructures show increased carrier migration rate and eliminated Fermi level pinning effect, contributing to their potential in devices and catalytic system.
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Affiliation(s)
- Gonglei Shao
- Institute of Chemical Biology and Nanomedicine (ICBN)State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082P. R. China
| | - Yizhen Lu
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials (iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Jinhua Hong
- Nanomaterials Research InstituteNational Institute of Advanced Industrial Science and Technology (AIST)Tsukuba305‐8565Japan
| | - Xiong‐Xiong Xue
- Hunan Provincial Key Laboratory of Low‐Dimensional Structural Physics and DevicesSchool of Physics and ElectronicsHunan UniversityChangsha410082P. R. China
- School of Physics and OptoelectronicsXiangtan UniversityXiangtan411105P. R. China
| | - Jinqiang Huang
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of SciencesShenyang110016P. R. China
- School of Material Science and EngineeringUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Zheyuan Xu
- Key Laboratory for Micro‐Nano Physics and Technology of Hunan ProvinceState Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Materials Science and EngineeringHunan UniversityChangsha410082P. R. China
| | - Xiangchao Lu
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials (iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Yuanyuan Jin
- Institute of Chemical Biology and Nanomedicine (ICBN)State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082P. R. China
| | - Xiao Liu
- Institute of Chemical Biology and Nanomedicine (ICBN)State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082P. R. China
| | - Huimin Li
- Institute of Chemical Biology and Nanomedicine (ICBN)State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082P. R. China
| | - Sheng Hu
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials (iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Kazu Suenaga
- Nanomaterials Research InstituteNational Institute of Advanced Industrial Science and Technology (AIST)Tsukuba305‐8565Japan
| | - Zheng Han
- Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of SciencesShenyang110016P. R. China
- School of Material Science and EngineeringUniversity of Science and Technology of ChinaHefei230026P. R. China
| | - Ying Jiang
- School of Physics and ElectronicsHunan UniversityChangsha410082P. R. China
| | - Shisheng Li
- International Center for Young Scientists (ICYS)National Institute for Materials Science (NIMS)Tsukuba305‐0044Japan
| | - Yexin Feng
- Hunan Provincial Key Laboratory of Low‐Dimensional Structural Physics and DevicesSchool of Physics and ElectronicsHunan UniversityChangsha410082P. R. China
| | - Anlian Pan
- Key Laboratory for Micro‐Nano Physics and Technology of Hunan ProvinceState Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Materials Science and EngineeringHunan UniversityChangsha410082P. R. China
| | - Yung‐Chang Lin
- Nanomaterials Research InstituteNational Institute of Advanced Industrial Science and Technology (AIST)Tsukuba305‐8565Japan
| | - Yang Cao
- State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials (iChEM)College of Chemistry and Chemical EngineeringXiamen UniversityXiamen361005P. R. China
| | - Song Liu
- Institute of Chemical Biology and Nanomedicine (ICBN)State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082P. R. China
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48
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Mosconi D, Kosmala T, Lunardon M, Neyman A, Bar-Sadan M, Agnoli S, Granozzi G. One-pot synthesis of MoS 2(1-x)Se 2x on N-doped reduced graphene oxide: tailoring chemical and structural properties for photoenhanced hydrogen evolution reaction. NANOSCALE ADVANCES 2020; 2:4830-4840. [PMID: 36132882 PMCID: PMC9419742 DOI: 10.1039/d0na00375a] [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: 05/08/2020] [Accepted: 08/28/2020] [Indexed: 06/16/2023]
Abstract
In this work we designed a one-pot solvothermal synthesis of MoS2(1-x)Se2x nanosheets directly grown on N-doped reduced graphene oxide (hereafter N-rGO). We optimized the synthesis conditions to control the Se : S ratio, with the aim of tailoring the optoelectronic properties of the resulting nanocomposites for their use as electro- and photoelectro-catalysts in the hydrogen evolution reaction (HER). The synthesis protocol made use of ammonium tetrathiomolybdate (ATM) as MoS2 precursor and dimethyl diselenide (DMDSe) as selenizing agent. By optimizing growth conditions and post-annealing treatments, we produced either partially amorphous or highly crystalline chalcogen-defective electrocatalysts. All samples were tested for the HER in acidic environment, and the best performing among them, for the photoassisted HER. In low crystallinity samples, the introduction of Se is not beneficial for promoting the catalytic activity, and MoS2/N-rGO was the most active electrocatalyst. On the other hand, after the post-annealing treatment and the consequent crystallization of the materials, the best HER performance was obtained for the sample with x = 0.38, which also showed the highest enhancement upon light irradiation.
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Affiliation(s)
- Dario Mosconi
- Dipartimento di Scienze Chimiche, Università di Padova Via Marzolo 1 35131 Padova Italy
| | - Tomasz Kosmala
- Dipartimento di Scienze Chimiche, Università di Padova Via Marzolo 1 35131 Padova Italy
| | - Marco Lunardon
- Dipartimento di Scienze Chimiche, Università di Padova Via Marzolo 1 35131 Padova Italy
| | - Alevtina Neyman
- Department of Chemistry, Ben-Gurion University of the Negev Beer-Sheva Israel
| | - Maya Bar-Sadan
- Department of Chemistry, Ben-Gurion University of the Negev Beer-Sheva Israel
| | - Stefano Agnoli
- Dipartimento di Scienze Chimiche, Università di Padova Via Marzolo 1 35131 Padova Italy
| | - Gaetano Granozzi
- Dipartimento di Scienze Chimiche, Università di Padova Via Marzolo 1 35131 Padova Italy
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Photoelectrochemical immunosensor for methylated RNA detection based on WS 2 and poly(U) polymerase-triggered signal amplification. Mikrochim Acta 2020; 187:596. [PMID: 33033870 DOI: 10.1007/s00604-020-04572-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/25/2020] [Indexed: 10/23/2022]
Abstract
A novel photoelectrochemical immunosensor has been constructed for the determination of methylated RNA. MoS2 nanosheets with large specific area were employed as photoactive material, gold nanoparticles were used as signal amplification unit and immobilization matrix of 4-mercaptophenylboronic acid, anti-m6A antibody was adopted as methylated RNA recognition reagent, and poly(U) polymerase-mediated RNA chain extension and Ru(NH3)63+ were used as assisted signal amplification unit. With the sensitization effect of Ru(NH3)63+, the photoactivity of WS2 nanosheets was improved greatly, which also improved the sensitivity. Using visible-light excitation and ascorbic acid as electron donor, the sensitive determination of methylated RNA was achieved by monitoring the photocurrent change with different concentrations of methylated RNA. This photoelectrochemical immunosensor has a wide linear relationship with methylated RNA concentration from 0.05 to 35 nM under optimal experimental conditions. The low detection limit of 14.5 pM was realized based on 3σ criterion. In addition to the good selectivity, this sensor also presents high reproducibility with a relative standard deviation of 1.4% for the photocurrent of seven electrodes. The applicability of the developed method was also investigated by detecting the level of methylated RNA in corn seedling leaves with and without sulfadiazine treatment. Graphical abstract A novel photoelectrochemical immunosensor was developed for methylated RNA detection using the photoactive material of MoS2 and poly(U) polymerase-mediated RNA chain extension.
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50
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Guo X, Li Q, Liu Y, Jin T, Chen Y, Guo L, Lian T. Enhanced Light-Driven Charge Separation and H 2 Generation Efficiency in WSe 2 Nanosheet-Semiconductor Nanocrystal Heterostructures. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44769-44776. [PMID: 32914948 DOI: 10.1021/acsami.0c12931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Semiconductor-catalyst heterostructures have shown promising performances for light-driven H2 generation, although further development of these materials is hindered by the lack of cost-effective and efficient catalysts. In this paper, we adopt a colloidal method to prepare few-layer WSe2 nanosheets without exfoliation and apply them as catalysts for forming heterostructures with a wide range of semiconductor absorbers (CdS nanorods, CdSe/CdS dot-in-rods, TiO2 nanoparticles, g-C3N4 nanosheets). These WSe2-semiconductor heterostructures show enhanced solar-to-hydrogen conversion efficiencies compared to semiconductors without WSe2. The detailed mechanism of this enhancement has been investigated using WSe2 nanosheet-decorated CdSe/CdS dot-in-rods as a model system, which display ∼5.5-fold higher hydrogen generation apparent quantum efficiency compared to free CdSe/CdS dot-in-rods. Transient absorption spectroscopic studies reveal efficient charge separation in WSe2-decorated CdSe/CdS dot-in-rods, suggesting its key role in enhancing the H2 generation efficiency of WSe2-semiconductor heterostructures. This work demonstrates the great potentials of WSe2 nanosheets as catalysts for light-driven hydrogen production and the important effect of forming WSe2-semiconductor heterostructures in facilitating charge separation and photocatalysis.
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Affiliation(s)
- Xu Guo
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
| | - Qiuyang Li
- Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
| | - Yawei Liu
- Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
| | - Tao Jin
- Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
| | - Yubin Chen
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Liejin Guo
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Tianquan Lian
- Department of Chemistry, Emory University, 1515 Dickey Drive, NE, Atlanta, Georgia 30322, United States
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