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Talreja N, Ashfaq M, Chauhan D, Mera AC, Rodríguez CA. Strategic Doping Approach of the Fe-BiOI Microstructure: An Improved Photodegradation Efficiency of Tetracycline. ACS OMEGA 2021; 6:1575-1583. [PMID: 33490817 PMCID: PMC7818580 DOI: 10.1021/acsomega.0c05398] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
The present study describes the strategic doping of Fe metal ions into a BiOI microstructure using ex situ and in situ processes to synthesize a Fe-BiOI microstructure and their effect on photocatalytic degradation of tetracycline (TC). The data suggested that in situ Fe-BiOI (Fe-BiOI-In) has superior performance compared to ex situ Fe-BiOI (Fe-BiOI-Ex) due to the uniform dispersion of Fe within the Fe-BiOI material. Calculated bandgaps ∼1.8, ∼1.5, and 2.4 eV were observed for BiOI (without Fe), Fe-BiOI-In, and Fe-BiOI-Ex, respectively. Interestingly, Fe incorporation within BiOI might decrease the bandgap in Fe-BiOI-In due to the uniform distribution of metal ions, whereas increasing the bandgap in Fe-BiOI-Ex attributed to nonuniform distribution or agglomeration of metal ions. The uniform dispersion of Fe within Fe-BiOI modulates electronic properties as well as increases the exposure of Fe ions with TC, thereby higher degradation efficiency of TC. The in situ Fe-BiOI material shows 67 and 100% degradation of TC at 10 and 1 mg/L, respectively. The TC degradation was also found to be pH-dependent; when increasing the pH value up to 10, 94% degradation was achieved at 10 mg/L within 60 min of solar irradiation. The analysis was also performed over BiOI, which proves that Fe has a profound effect on TC degradation as Fe(II) tends to trigger oxidation-reduction by utilizing the chelate formation tendency of TC. Therefore, the prepared Fe-BiOI-In has the potential ability to degrade pharmaceutical compounds, especially, TC from wastewater.
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Affiliation(s)
- Neetu Talreja
- Multidisciplinary
Research Institute for Science and Technology, IIMCT, University of La Serena, La Serena 1700000, Chile
- Advanced
Ceramics and Nanotechnology Laboratory, Department of Materials Engineering,
Faculty of Engineering, University of Concepción, Concepción 4070409, Chile
| | - Mohammad Ashfaq
- Multidisciplinary
Research Institute for Science and Technology, IIMCT, University of La Serena, La Serena 1700000, Chile
- Advanced
Ceramics and Nanotechnology Laboratory, Department of Materials Engineering,
Faculty of Engineering, University of Concepción, Concepción 4070409, Chile
- School
of Life Science, BS AbdurRahaman Crescent
Institute of Science and Technology, Chennai 600048, India
| | - Divya Chauhan
- Department
of Chemical and Biomedical Engineering, University of South Florida, Tampa 33620, Florida, United States
| | - Adriana C. Mera
- Multidisciplinary
Research Institute for Science and Technology, IIMCT, University of La Serena, La Serena 1700000, Chile
| | - C. A. Rodríguez
- Multidisciplinary
Research Institute for Science and Technology, IIMCT, University of La Serena, La Serena 1700000, Chile
- Department
of Chemistry, Faculty of Sciences, University of La Serena, La Serena 1700000, Chile
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Nie J, Hassan QU, Jia Y, Gao J, Peng J, Lu J, Zhang F, Zhu G, Wang Q. La-Doped ZnWO4 nanorods with enhanced photocatalytic activity for NO removal: effects of La doping and oxygen vacancies. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01152h] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
La3+-Doped ZnWO4 nanorods were prepared via a hydrothermal method for the photocatalytic NO removal under simulated solar light irradiation.
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Affiliation(s)
- Junli Nie
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Qadeer-Ul Hassan
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Yuefa Jia
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- P.R. China
| | - Jianzhi Gao
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Jianhong Peng
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Jiangbo Lu
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Fuchun Zhang
- College of Physics and Electronic Information
- Yan'an University
- Yan'an 716000
- P.R. China
| | - Gangqiang Zhu
- School of Physics and Information Technology
- Shaanxi Normal University
- Xi'an 710062
- P.R. China
| | - Qizhao Wang
- School of Environmental Science and Engineering
- Chang'an University
- Xi'an 710064
- P.R. China
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Wang S, Liu G, Wang L. Crystal Facet Engineering of Photoelectrodes for Photoelectrochemical Water Splitting. Chem Rev 2019; 119:5192-5247. [PMID: 30875200 DOI: 10.1021/acs.chemrev.8b00584] [Citation(s) in RCA: 255] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Photoelectrochemical (PEC) water splitting is a promising approach for solar-driven hydrogen production with zero emissions, and it has been intensively studied over the past decades. However, the solar-to-hydrogen (STH) efficiencies of the current PEC systems are still far from the 10% target needed for practical application. The development of efficient photoelectrodes in PEC systems holds the key to achieving high STH efficiencies. In recent years, crystal facet engineering has emerged as an important strategy in designing efficient photoelectrodes for PEC water splitting, which has yet to be comprehensively reviewed and is the main focus of this article. After the Introduction, the second section of this review concisely introduces the mechanisms of crystal facet engineering. The subsequent section provides a snapshot of the unique facet-dependent properties of some semiconductor crystals including surface electronic structures, redox reaction sites, surface built-in electric fields, molecular adsorption, photoreaction activity, photocorrosion resistance, and electrical conductivity. Then, the methods for fabricating photoelectrodes with faceted semiconductor crystals are reviewed, with a focus on the preparation processes. In addition, the notable advantages of the crystal facet engineering of photoelectrodes in terms of light harvesting, charge separation and transfer, and surface reactions are critically discussed. This is followed by a systematic overview of the modification strategies of faceted photoelectrodes to further enhance the PEC performance. The last section summarizes the major challenges and some invigorating perspectives for future research on crystal facet engineered photoelectrodes, which are believed to play a vital role in promoting the development of this important research field.
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Affiliation(s)
- Songcan Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , Queensland 4072 , Australia
| | - Gang Liu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China.,School of Materials Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , Queensland 4072 , Australia
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Li D, Zuo S, Xu H, Zan J, Sun L, Han D, Liao W, Zhang B, Xia D. Synthesis of a g-C3N4-Cu2O heterojunction with enhanced visible light photocatalytic activity by PEG. J Colloid Interface Sci 2018; 531:28-36. [DOI: 10.1016/j.jcis.2018.07.018] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 01/08/2023]
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Visible light photocatalytic performance and mechanism of highly efficient SnS/BiOI heterojunction. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.019] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ma FQ, Yao JW, Zhang YF, Wei Y. Unique band structure enhanced visible light photocatalytic activity of phosphorus-doped BiOI hierarchical microspheres. RSC Adv 2017. [DOI: 10.1039/c7ra06261c] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this article, phosphorus (P)-doped BiOI hierarchical microspheres were prepared via a facile hydrolytic method at room temperature.
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Affiliation(s)
- Fen-Qiang Ma
- National Demonstration Center for Experimental Chemistry Education
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
| | - Jing-Wen Yao
- National Demonstration Center for Experimental Chemistry Education
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
| | - Yan-Feng Zhang
- National Demonstration Center for Experimental Chemistry Education
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
| | - Yu Wei
- National Demonstration Center for Experimental Chemistry Education
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang
- P. R. China
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