Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr3 Perovskite Nanocrystals

Using the ionic salt characteristics of CsPbBr3 perovskite nanocrystals (CsPbBr3 NCs), the fluorescence wavelength of CsPbBr3−xIx NCs could be changed by the halogen exchange reaction between CsPbBr...

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Autores principales:	Li Zhang, Yimeng Zhu, Feiming Li, Linchun Zhang, Longjie You, Zhiyong Guo, Yaning Huang, Li Zhao, Xi Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	benzoyl peroxide CsPbBr<sub>3</sub> nanocrystals fluorescence wavelength shift colorimetric sensing halide exchange Biochemistry QD415-436
Acceso en línea:	https://doaj.org/article/e61e2337719841feb23dc2bb72563d30
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spelling	oai:doaj.org-article:e61e2337719841feb23dc2bb72563d302021-11-25T17:13:40ZColorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals10.3390/chemosensors91103192227-9040https://doaj.org/article/e61e2337719841feb23dc2bb72563d302021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9040/9/11/319https://doaj.org/toc/2227-9040Using the ionic salt characteristics of CsPbBr<sub>3</sub> perovskite nanocrystals (CsPbBr<sub>3</sub> NCs), the fluorescence wavelength of CsPbBr<sub>3−x</sub>I<sub>x</sub> NCs could be changed by the halogen exchange reaction between CsPbBr<sub>3</sub> NCs and oleylammonium iodide (OLAM-I). Under the excitation of a 365 nm UV lamp and the increase of OLAM-I concentration, the content of iodine in CsPbBr<sub>3−x</sub>I<sub>x</sub> NCs increased, and the fluorescence emission wavelength showed a redshift from 511.6 nm to 593.4 nm, resulting in the fluorescence color change of CsPbBr<sub>3</sub> NCs from green to orange-red. Since OLAM-I is a mild reducing agent and easily oxidized by benzoyl peroxide (BPO), a novel colorimetric sensing approach for BPO based on the fluorescence wavelength shift was established in this study. The linear relationship between the different wavelength shifts (Δλ) and the concentration of BPO (C<sub>BPO</sub>) is found to be in the range of 0 to 120 μmol L<sup>−1</sup>. The coefficient of alteration (R<sup>2</sup>) and the detection limit are 0.9933 and 0.13 μmol L<sup>−1</sup> BPO, respectively. With this approach, the determination procedure of BPO in flour and noodle samples can be achieved in only a few minutes and exhibit high sensitivity and selectivity.Li ZhangYimeng ZhuFeiming LiLinchun ZhangLongjie YouZhiyong GuoYaning HuangLi ZhaoXi ChenMDPI AGarticlebenzoyl peroxideCsPbBr<sub>3</sub> nanocrystalsfluorescence wavelength shiftcolorimetric sensinghalide exchangeBiochemistryQD415-436ENChemosensors, Vol 9, Iss 319, p 319 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	benzoyl peroxide CsPbBr<sub>3</sub> nanocrystals fluorescence wavelength shift colorimetric sensing halide exchange Biochemistry QD415-436
spellingShingle	benzoyl peroxide CsPbBr<sub>3</sub> nanocrystals fluorescence wavelength shift colorimetric sensing halide exchange Biochemistry QD415-436 Li Zhang Yimeng Zhu Feiming Li Linchun Zhang Longjie You Zhiyong Guo Yaning Huang Li Zhao Xi Chen Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
description	Using the ionic salt characteristics of CsPbBr<sub>3</sub> perovskite nanocrystals (CsPbBr<sub>3</sub> NCs), the fluorescence wavelength of CsPbBr<sub>3−x</sub>I<sub>x</sub> NCs could be changed by the halogen exchange reaction between CsPbBr<sub>3</sub> NCs and oleylammonium iodide (OLAM-I). Under the excitation of a 365 nm UV lamp and the increase of OLAM-I concentration, the content of iodine in CsPbBr<sub>3−x</sub>I<sub>x</sub> NCs increased, and the fluorescence emission wavelength showed a redshift from 511.6 nm to 593.4 nm, resulting in the fluorescence color change of CsPbBr<sub>3</sub> NCs from green to orange-red. Since OLAM-I is a mild reducing agent and easily oxidized by benzoyl peroxide (BPO), a novel colorimetric sensing approach for BPO based on the fluorescence wavelength shift was established in this study. The linear relationship between the different wavelength shifts (Δλ) and the concentration of BPO (C<sub>BPO</sub>) is found to be in the range of 0 to 120 μmol L<sup>−1</sup>. The coefficient of alteration (R<sup>2</sup>) and the detection limit are 0.9933 and 0.13 μmol L<sup>−1</sup> BPO, respectively. With this approach, the determination procedure of BPO in flour and noodle samples can be achieved in only a few minutes and exhibit high sensitivity and selectivity.
format	article
author	Li Zhang Yimeng Zhu Feiming Li Linchun Zhang Longjie You Zhiyong Guo Yaning Huang Li Zhao Xi Chen
author_facet	Li Zhang Yimeng Zhu Feiming Li Linchun Zhang Longjie You Zhiyong Guo Yaning Huang Li Zhao Xi Chen
author_sort	Li Zhang
title	Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
title_short	Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
title_full	Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
title_fullStr	Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
title_full_unstemmed	Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals
title_sort	colorimetric sensing of benzoyl peroxide based on the emission wavelength-shift of cspbbr<sub>3</sub> perovskite nanocrystals
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e61e2337719841feb23dc2bb72563d30
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_version_	1718412623414820864

Colorimetric Sensing of Benzoyl Peroxide Based on the Emission Wavelength-Shift of CsPbBr<sub>3</sub> Perovskite Nanocrystals

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