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Li L, Li F, Li T, Cao W. A facile synthesis of K 3PMo 12O 40/WO 3 crystals for effective sonocatalytic performance. RSC Adv 2023; 13:15981-15992. [PMID: 37250223 PMCID: PMC10214110 DOI: 10.1039/d3ra02531d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/17/2023] [Indexed: 05/31/2023] Open
Abstract
Proper treatment of hazardous contaminants in the air, land, and water is crucial to environmental remediation. Sonocatalysis, by using ultrasound and suitable catalysts, has shown its potential in organic pollutant removal. In this work, K3PMo12O40/WO3 sonocatalysts were fabricated via a facile solution method at room temperature. Techniques such as powder X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, and X-ray photoelectron spectroscopy were used to characterize the structure and morphology of the products. By using the K3PMo12O40/WO3 sonocatalyst, an ultrasound-assisted advanced oxidation process has been developed for the catalytic degradation of methyl orange and acid red 88. Almost all dyes were degraded within 120 min of ultrasound baths, proving that the K3PMo12O40/WO3 sonocatalyst has the advantage of speeding up the decomposition of contaminants. The impacts of key parameters, including catalyst dosage, dye concentration, dye pH, and ultrasonic power were evaluated to understand and reach optimized conditions in sonocatalysis. The remarkable performance of K3PMo12O40/WO3 in the sonocatalytic degradation of pollutants provides a new strategy for the application of K3PMo12O40 in sonocatalysis.
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Affiliation(s)
- Linjing Li
- College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University Xiangtan 411105 China
| | - Feng Li
- College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University Xiangtan 411105 China
- Nano and Molecular Materials Research Unit, Faculty of Science, University of Oulu P.O. Box 3000 FIN-90014 Oulu Finland
| | - Taohai Li
- College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University Xiangtan 411105 China
- Nano and Molecular Materials Research Unit, Faculty of Science, University of Oulu P.O. Box 3000 FIN-90014 Oulu Finland
| | - Wei Cao
- Nano and Molecular Materials Research Unit, Faculty of Science, University of Oulu P.O. Box 3000 FIN-90014 Oulu Finland
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Benhammada A, Trache D, Chelouche S. Catalytic effect investigation of α-Fe2O3 and α-Fe2O3-CMS nanocomposites on the thermal behavior of NC/DGEDN mixture: DSC measurements and kinetic modeling. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Barman S, Singh B, Bag A, Patel AS, Chakraborti A, Rana A. Visible light‐driven photocatalytic degradation of methyl orange by Fe
2
O
3
‐BiOCl
0.5
Br
0.5
composite photocatalyst. ASIA-PAC J CHEM ENG 2021. [DOI: 10.1002/apj.2715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sanmitra Barman
- Center for Advanced Materials and Devices BML Munjal University Gurgaon Haryana India
| | - Bipin Singh
- Center for Advanced Materials and Devices BML Munjal University Gurgaon Haryana India
| | - Arijit Bag
- Applied Sciences Department Maulana Abul Kalam Azad University of Technology Nadia West Bengal India
| | - Arun Singh Patel
- Department of Physics, Hindu College Delhi University Delhi India
| | - Anirban Chakraborti
- Center for Advanced Materials and Devices BML Munjal University Gurgaon Haryana India
| | - Abhimanyu Rana
- Center for Advanced Materials and Devices BML Munjal University Gurgaon Haryana India
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2D/2D black-BiOCl/ Fe2O3 heterojunction photo-Fenton catalytic system for enhanced visible-light tetracycline degradation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126953] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Liu J, Li X, Wang H, Yuan G, Suvorova A, Gain S, Ren Y, Lei W. Ultrathin High-Quality SnTe Nanoplates for Fabricating Flexible Near-Infrared Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31810-31822. [PMID: 32585086 DOI: 10.1021/acsami.0c07847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This work demonstrates a controlled van der Waals growth of two-dimensional SnTe nanoplates on mica substrates and their applications in flexible near-infrared photodetectors. The growth of nonlayered rock-salt structured SnTe crystals into two-dimensional SnTe nanoplate structures is mainly caused by the two-dimensional nature of the mica surface, which also results in the ultrathin nanoplates obtained (3.6 nm, equivalent to 6 monolayers). Furthermore, it is found that the shape of the SnTe nanoplates can be well engineered by changing their growth temperature due to the competition between the surface energy of the {100} crystallographic plane and that of the {111} plane. As a result of the favorable physical properties of topological crystalline insulators such as metallic surface (high electron mobility) and narrow bandgap, near-infrared photodetectors based on single SnTe nanoplate with the thickness of 3.6 nm present excellent device performance with a responsivity of 698 mA/W, a specific detectivity of 3.89 × 108 jones, and an external quantum efficiency of 88.5% under the illumination of a 980 nm laser at room temperature (300 K) without applying a gate voltage (Vg). Upon increasing the gate voltage from -30 to 30 V, the detector responsivity increases from 2.96 to 723 mA/W and the detector detectivity increases from 2.4 × 106 to 5.3 × 108 jones. Furthermore, upon increasing the thickness of SnTe nanoplate from 3.6 to 35 nm, the detector responsivity increases from 0.698 to 1.468 A/W. The device performance measured after bending for 300 times as well as after bending with different radii presents no obvious degradation, which exhibits the excellent flexibility of the SnTe nanoplate detectors. These results not only contribute to a deep understanding of the mechanisms of the van der Waals growth of nonlayered materials into two-dimensional structure but also demonstrate the immense potential of SnTe nanoplates to be used in flexible near-infrared detectors.
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Affiliation(s)
- Junliang Liu
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Xiao Li
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Han Wang
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Guang Yuan
- College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Alexandra Suvorova
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Sarah Gain
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Yongling Ren
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
| | - Wen Lei
- Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia
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Ashraf W, Bansal S, Singh V, Barman S, Khanuja M. BiOCl/WS 2 hybrid nanosheet (2D/2D) heterojunctions for visible-light-driven photocatalytic degradation of organic/inorganic water pollutants. RSC Adv 2020; 10:25073-25088. [PMID: 35517440 PMCID: PMC9055180 DOI: 10.1039/d0ra02916e] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/15/2020] [Indexed: 01/25/2023] Open
Abstract
This report presents the superior visible-light-driven photocatalytic response of novel 2D/2D BiOCl/WS2 (BW X ) hybrid nanosheet heterojunctions prepared by a simple solution based sonochemical technique. These BW X hybrid nanosheets are composed of 2D transition metal dichalcogenide material WS2 and BiOCl nanosheets. The comparative study of photocatalytic activity of BiOCl and BiOCl/WS2 hybrid nanosheets is carried out via photodegradation of Malachite Green (MG) and photoreduction of heavy metal ion Cr(vi) under visible light irradiation. The quantum efficiency of the samples is estimated in terms of the incident photon to electron conversion efficiency (IPCE) measurements. Nearly 98.4% of the MG degradation was achieved over BiOCl/WS2 (2%) photocatalyst in 45 min of irradiation. BiOCl/WS2 (2%) hybrid nanosheet catalyst showed the highest external quantum efficiency (EQE) in both the UV and visible regimes. This accomplishment demonstrated the promise of commercial application of the 2D/2D BiOCl/WS2 (2%) hybrid nanosheet photocatalyst.
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Affiliation(s)
- Waseem Ashraf
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia New Delhi-110025 India
| | - Shikha Bansal
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia New Delhi-110025 India
| | - Vikrant Singh
- Center for Advanced Materials and Devices, BML Munjal University Haryana-122413 India
| | - Sanmitra Barman
- Center for Advanced Materials and Devices, BML Munjal University Haryana-122413 India
| | - Manika Khanuja
- Centre for Nanoscience and Nanotechnology, Jamia Millia Islamia New Delhi-110025 India
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