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Boosting the photocatalytic properties of NaTaO3 by coupling with AgBr. Photochem Photobiol Sci 2022; 22:549-566. [PMID: 36352304 DOI: 10.1007/s43630-022-00334-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 10/25/2022] [Indexed: 11/11/2022]
Abstract
AbstractAgBr/NaTaO3 composites, with different molar % of NaTaO3 (Br/NTO(X%)), have been synthesized by simple precipitation methods; bare NaTaO3 was synthesized by hydrothermal procedure, while AgBr was synthesized by a precipitation procedure using cetyl-tri-methyl-ammonium bromide (CTAB) and AgNO3. Samples have been characterized by X-ray diffraction (XRD), N2 adsorption, UV–vis diffuse reflectance spectroscopy (DRS), Fourier-transform infrared spectroscopy (FT-IR), Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Photocatalytic activity of the as-prepared photo-catalysts was evaluated through photocatalytic degradation of rhodamine B (RhB), methyl orange (MO) and caffeic acid (CAFA) under UV and visible illumination. Single AgBr material and Br/NTO(X%) composites displayed the ability to absorb light in the visible region, while NaTaO3 is only photoactive under UV irradiation. Based on the position of conduction and valence bands of AgBr and NaTaO3, the heterojunction between these two photo-catalysts corresponds to a type II junction. In the case of photocatalytic degradation of RhB and CAFA, Br/NTO(x%) composites have highest photocatalytic activity than that obtained by both parental materials under the same operational conditions. AgBr and Br/NTO(x%) composites achieve a fast degradation of MO, together with a considerable adsorption capacity, attributed to the presence of a remaining amount of residual CTAB on the AgBr surface. In summary, coupling AgBr with NaTaO3 improves the photocatalytic activity under both UV and visible illumination with respect to the parental components, but the performance of the composites is highly dependent on the type of substrate to be degraded and the illumination conditions.
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Yu Z, Lv Y, Huang F, Zhang F, Shi Q, An K, Fan T, Li G, Wang J. Photoatalytic Degradation of Organic Pollutants in Water Under Visible Light by NH
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Composite Photocatalyst. ChemistrySelect 2022. [DOI: 10.1002/slct.202201958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhengming Yu
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Yunkai Lv
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Feng Huang
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Fang Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Qi Shi
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Ke An
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Tingting Fan
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
| | - Gang Li
- Baoding Green Yijia Environmental Protection Technology Ltd. Baoding 071002 China
| | - Jing Wang
- Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Environmental Science Hebei University Baoding 071002 China
- Baoding Green Yijia Environmental Protection Technology Ltd. Baoding 071002 China
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Puga F, Navío J, Hidalgo M. Enhanced UV and visible light photocatalytic properties of synthesized AgBr/SnO2 composites. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117948] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Naciri Y, Hsini A, Ajmal Z, Bouddouch A, Bakiz B, Navío J, Albourine A, Valmalette JC, Ezahri M, Benlhachemi A. Influence of Sr-doping on structural, optical and photocatalytic properties of synthesized Ca3(PO4)2. J Colloid Interface Sci 2020; 572:269-280. [DOI: 10.1016/j.jcis.2020.03.105] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
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