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Pinatti IM, Tello ACM, Pereira PFS, Trench AB, Teodoro MD, Rosa ILV, da Silva ABF, Longo E, Andrés J, Simões AZ. Towards a relationship between photoluminescence emissions and photocatalytic activity of Ag 2SeO 4: combining experimental data and theoretical insights. Dalton Trans 2022; 51:11346-11362. [PMID: 35815575 DOI: 10.1039/d2dt01057g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A systematic theoretical and experimental study was carried out to find a relationship between photoluminescence emissions and photocatalytic activity of Ag2SeO4 obtained by different synthesis methods (sonochemistry, ultrasonic probe, coprecipitation and microwave assisted hydrothermal synthesis). Experimental characterization techniques (XRD with Rietveld refinement, Raman, FTIR, UV-vis, XPS and photoluminescence spectroscopy) were used to elucidate its structural order at short, medium, and long ranges. Morphological analysis performed by FE-SEM showed distinct morphologies due to the different methods of synthesis. Based on density functional theory (DFT) calculations, it was possible to study in detail the Ag2SeO4 surface properties, including its surface energy, geometry, and electronic structure for the (100), (010), (001), (101), (011), (110), (111), (021), (012) and (121) surfaces. The equilibrium morphology of Ag2SeO4 was predicted as a truncated octahedron with exposed (111), (001), (010) and (011) surfaces. Photoluminescence emissions showed a band covering the visible spectrum, and the Ag2SeO4 obtained by the coprecipitation method presented the most intense band with a maximum in the red region. Photocatalytic results confirmed that Ag2SeO4 synthesized by the sonochemistry method is the best photocatalyst for rhodamine B degradation under UV light irradiation.
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Affiliation(s)
- Ivo M Pinatti
- Faculty of Engineering of Guaratinguetá, São Paulo State University (UNESP), 12516-410, Guaratinguetá, SP, Brazil. .,Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló 12071, Spain.
| | - Ana C M Tello
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-590, Brazil.,São Carlos Institute of Chemistry, São Paulo University (USP), P.O. Box 676, São Carlos 13566-905, Brazil
| | - Paula F S Pereira
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-590, Brazil
| | - Aline B Trench
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-590, Brazil
| | - Marcio D Teodoro
- Physics Department, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Ieda L V Rosa
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-590, Brazil
| | - Albérico B F da Silva
- São Carlos Institute of Chemistry, São Paulo University (USP), P.O. Box 676, São Carlos 13566-905, Brazil
| | - Elson Longo
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-590, Brazil
| | - Juan Andrés
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló 12071, Spain.
| | - Alexandre Z Simões
- Faculty of Engineering of Guaratinguetá, São Paulo State University (UNESP), 12516-410, Guaratinguetá, SP, Brazil.
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Pinatti IM, Trench AB, Tello ACM, Pereira PFS, Souza JC, Teodoro MD, Rosa ILV, Andrés J, Longo E, Simões AZ. Structure, Photoluminescence Emissions, and Photocatalytic Activity of Ag 2SeO 3: A Joint Experimental and Theoretical Investigation. Inorg Chem 2021; 60:5937-5954. [PMID: 33769807 DOI: 10.1021/acs.inorgchem.1c00368] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, we report the synthesis of silver selenite (Ag2SeO3) by different methods [sonochemistry, ultrasonic probe, coprecipitation, and microwave-assisted hydrothermal methods]. These microcrystals presented a structural long-range order as confirmed by X-ray diffraction (XRD) and Rietveld refinements and a structural short-range order as confirmed by Fourier transform infrared (FTIR) and Raman spectroscopies. X-ray photoelectron spectroscopy (XPS) provided information about the surface of the samples indicating that they were pure. The microcrystals presented different morphologies and sizes due to the synthesis method as observed by field emission scanning electron microscopy (FE-SEM). The optical properties of these microcrystals were evaluated by ultraviolet-visible (UV-vis) spectroscopy and photoluminescence (PL) measurements. Thermal analysis confirmed the temperature stability of the as-synthetized samples. Further trapping experiments prove that the holes and hydroxyl radicals, to a minor extent, are responsible for the photocatalytic reactions. The experimental results are sustained by first-principles calculations, at the density functional theory (DFT) level, to decipher the structural parameters, electronic properties of the bulk, and surfaces of Ag2SeO3. By matching the experimental FE-SEM images and theoretical morphologies, we are capable of finding a correlation between the morphology and photocatalytic activity, along with photodegradation of the Rhodamine B dye under UV light, based on the different numbers of unsaturated superficial Ag and Se cations (local coordination, i.e., clusters) of each surface.
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Affiliation(s)
- Ivo M Pinatti
- Faculty of Engineering of Guaratinguetá, São Paulo State University (UNESP), Guaratinguetá 12516-410, SP, Brazil
| | - Aline B Trench
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Ana C M Tello
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Paula F S Pereira
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Josiane C Souza
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Marcio D Teodoro
- Physics Department, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Ieda L V Rosa
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Juan Andrés
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), Castelló 12071, Spain
| | - Elson Longo
- CDMF, LIEC, Federal University of São Carlos (UFSCar), P.O. Box 676, São Carlos 13565-905, Brazil
| | - Alexandre Z Simões
- Faculty of Engineering of Guaratinguetá, São Paulo State University (UNESP), Guaratinguetá 12516-410, SP, Brazil
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Lee DW, Bak DB, Kim SB, Kim J, Ok KM. Effect of the Framework Flexibility on the Centricities in Centrosymmetric In2Zn(SeO3)4 and Noncentrosymmetric Ga2Zn(TeO3)4. Inorg Chem 2012; 51:7844-50. [DOI: 10.1021/ic300909s] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Woo Lee
- Department
of Chemistry and ‡Department of Chemistry Education, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756,
Republic of Korea
| | - Dan-bee Bak
- Department
of Chemistry and ‡Department of Chemistry Education, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756,
Republic of Korea
| | - Saet Byeol Kim
- Department
of Chemistry and ‡Department of Chemistry Education, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756,
Republic of Korea
| | - Jiwon Kim
- Department
of Chemistry and ‡Department of Chemistry Education, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756,
Republic of Korea
| | - Kang Min Ok
- Department
of Chemistry and ‡Department of Chemistry Education, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul 156-756,
Republic of Korea
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