Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots
Perovskite materials consisting of dual-phase CsPbBr3–CsPb2Br5 coated with (3-Aminopropyl) tiethoxysilane (APTES) were synthesized using the ligand-assisted reprecipitation method at 0 °C. The photoluminescence intensity of CsPbBr3–CsPb2Br5 coated with APTES was 1.2 times higher than that of uncoate...
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Elsevier
2022-11-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821122001181 |
| _version_ | 1811206880267075584 |
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| author | Chieh-Wen Hsieh Rajan Kumar Singh Sudipta Som Chung-Hsin Lu |
| author_facet | Chieh-Wen Hsieh Rajan Kumar Singh Sudipta Som Chung-Hsin Lu |
| author_sort | Chieh-Wen Hsieh |
| collection | DOAJ |
| description | Perovskite materials consisting of dual-phase CsPbBr3–CsPb2Br5 coated with (3-Aminopropyl) tiethoxysilane (APTES) were synthesized using the ligand-assisted reprecipitation method at 0 °C. The photoluminescence intensity of CsPbBr3–CsPb2Br5 coated with APTES was 1.2 times higher than that of uncoated CsPbBr3–CsPb2Br5. Furthermore, the photoluminescence intensity of the synthesized perovskite materials remained at 95% of the initial emission intensity after 10 days in ethanol. Fe3+ ions were found to exert strong fluorescence quenching on the prepared CsPbBr3–CsPb2Br5 coated with APTES, and that effect originated from the decomposition of CsPbBr3 to CsPb2Br5. The quenching behavior was related to the adsorption between Fe3+ ions and APTES. The response time for detecting Fe3+ was only 8 s at 40 °C, indicating a high detection speed. Effective detection ranges for Fe3+ ions were achieved at concentrations between 10−2 and 10−5 M, and the detection limit was reached at 10−5 M with 89.6% of the initial emission intensity. These results revealed that the detection of Fe3+ ions using CsPbBr3–CsPb2Br5 coated with APTES exhibited high sensitivity as well as a short response time in a wide detecting range. |
| first_indexed | 2024-04-12T03:54:18Z |
| format | Article |
| id | doaj.art-b69795aa7a7040798317f73356db61e7 |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-04-12T03:54:18Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-b69795aa7a7040798317f73356db61e72022-12-22T03:48:53ZengElsevierChemical Engineering Journal Advances2666-82112022-11-0112100358Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dotsChieh-Wen Hsieh0Rajan Kumar Singh1Sudipta Som2Chung-Hsin Lu3Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, ROC, TaiwanDepartment of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, ROC, TaiwanDepartment of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, ROC, TaiwanDepartment of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, ROC, Taiwan; Department of Chemical Engineering, National Taiwan University, Taipei, ROC, 10617, Taiwan; Advanced Research Center for Green Materials Science and Technology, Taipei, 10617, ROC, Taiwan; Corresponding author.Perovskite materials consisting of dual-phase CsPbBr3–CsPb2Br5 coated with (3-Aminopropyl) tiethoxysilane (APTES) were synthesized using the ligand-assisted reprecipitation method at 0 °C. The photoluminescence intensity of CsPbBr3–CsPb2Br5 coated with APTES was 1.2 times higher than that of uncoated CsPbBr3–CsPb2Br5. Furthermore, the photoluminescence intensity of the synthesized perovskite materials remained at 95% of the initial emission intensity after 10 days in ethanol. Fe3+ ions were found to exert strong fluorescence quenching on the prepared CsPbBr3–CsPb2Br5 coated with APTES, and that effect originated from the decomposition of CsPbBr3 to CsPb2Br5. The quenching behavior was related to the adsorption between Fe3+ ions and APTES. The response time for detecting Fe3+ was only 8 s at 40 °C, indicating a high detection speed. Effective detection ranges for Fe3+ ions were achieved at concentrations between 10−2 and 10−5 M, and the detection limit was reached at 10−5 M with 89.6% of the initial emission intensity. These results revealed that the detection of Fe3+ ions using CsPbBr3–CsPb2Br5 coated with APTES exhibited high sensitivity as well as a short response time in a wide detecting range.http://www.sciencedirect.com/science/article/pii/S2666821122001181Perovskite quantum dotFe3+ detectionFluorescence quenchingDetection range |
| spellingShingle | Chieh-Wen Hsieh Rajan Kumar Singh Sudipta Som Chung-Hsin Lu Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots Chemical Engineering Journal Advances Perovskite quantum dot Fe3+ detection Fluorescence quenching Detection range |
| title | Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots |
| title_full | Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots |
| title_fullStr | Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots |
| title_full_unstemmed | Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots |
| title_short | Detection of Fe (III) using APTES-coated CsPbBr3–CsPb2Br5 perovskite quantum dots |
| title_sort | detection of fe iii using aptes coated cspbbr3 cspb2br5 perovskite quantum dots |
| topic | Perovskite quantum dot Fe3+ detection Fluorescence quenching Detection range |
| url | http://www.sciencedirect.com/science/article/pii/S2666821122001181 |
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