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Chava RK, Kang M. Bromine Ion-Intercalated Layered Bi 2WO 6 as an Efficient Catalyst for Advanced Oxidation Processes in Tetracycline Pollutant Degradation Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2614. [PMID: 37764643 PMCID: PMC10537847 DOI: 10.3390/nano13182614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
The visible-light-driven photocatalytic degradation of pharmaceutical pollutants in aquatic environments is a promising strategy for addressing water pollution problems. This work highlights the use of bromine-ion-doped layered Aurivillius oxide, Bi2WO6, to synergistically optimize the morphology and increase the formation of active sites on the photocatalyst's surface. The layered Bi2WO6 nanoplates were synthesized by a facile hydrothermal reaction in which bromine (Br-) ions were introduced by adding cetyltrimethylammonium bromide (CTAB)/tetrabutylammonium bromide (TBAB)/potassium bromide (KBr). The as-synthesized Bi2WO6 nanoplates displayed higher photocatalytic tetracycline degradation activity (~83.5%) than the Bi2WO6 microspheres (~48.2%), which were obtained without the addition of Br precursors in the reaction medium. The presence of Br- was verified experimentally, and the newly formed Bi2WO6 developed as nanoplates where the adsorbed Br- ions restricted the multilayer stacking. Considering the significant morphology change, increased specific surface area, and enhanced photocatalytic performance, using a synthesis approach mediated by Br- ions to design layered photocatalysts is expected to be a promising system for advancing water remediation.
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Affiliation(s)
- Rama Krishna Chava
- Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-ro, Gyeongbuk 38541, Gyeongsan, Republic of Korea
| | - Misook Kang
- Department of Chemistry, College of Natural Sciences, Yeungnam University, 280 Daehak-ro, Gyeongbuk 38541, Gyeongsan, Republic of Korea
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Korina E, Abramyan A, Bol’shakov O, Avdin VV, Savić S, Manojlović D, Stanković V, Stanković DM. Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:933. [PMID: 36679729 PMCID: PMC9866106 DOI: 10.3390/s23020933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/08/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability.
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Affiliation(s)
- Elena Korina
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
| | - Anton Abramyan
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
| | - Oleg Bol’shakov
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Vyacheslav V. Avdin
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
| | - Sladjana Savić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Dragan Manojlović
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Vesna Stanković
- Institute of Chemistry, Technology and Metallurgy, National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Dalibor M. Stanković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
- VINČA Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia
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Ban T, Konishi K, Mizuno M, Takai‐Yamashita C, Ohya Y. Anisotropic Crystal Growth of Layered Vanadates with Bulky Interlayer Cations. CRYSTAL RESEARCH AND TECHNOLOGY 2023. [DOI: 10.1002/crat.202200198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Takayuki Ban
- Department of Chemistry and Biomolecular ScienceGifu University 501–1193Yanagido 1‐1GifuJapan
| | - Karin Konishi
- Department of Chemistry and Biomolecular ScienceGifu University 501–1193Yanagido 1‐1GifuJapan
| | - Motoki Mizuno
- Department of Chemistry and Biomolecular ScienceGifu University 501–1193Yanagido 1‐1GifuJapan
| | - Chika Takai‐Yamashita
- Department of Chemistry and Biomolecular ScienceGifu University 501–1193Yanagido 1‐1GifuJapan
| | - Yutaka Ohya
- Department of Chemistry and Biomolecular ScienceGifu University 501–1193Yanagido 1‐1GifuJapan
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Ban T, Hamajima A, Akao N, Takai-Yamashita C, Ohya Y. Hydrothermal synthesis of highly pure brookite-type titanium oxide powder from aqueous sols of titanate nanosheets. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.08.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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