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Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water

Perovskite quantum dots (QDs) are promising as representative candidates to construct next-generation superior artificial light-harvesting systems (ALHSs). However, their high sensitivity to external environments, especially to water, imposes a stringent limitation for their actual implementation. H...

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Autores principales: Meng, Genping, Mu, Xijiao, Zhen, Liping, Hai, Jun, Zhang, Zefan, Hao, Tianzhi, Lu, Siyu, Wang, Aiqin, Wang, Baodui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9728576/
https://www.ncbi.nlm.nih.gov/pubmed/36540813
http://dx.doi.org/10.1039/d2sc05220b
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author Meng, Genping
Mu, Xijiao
Zhen, Liping
Hai, Jun
Zhang, Zefan
Hao, Tianzhi
Lu, Siyu
Wang, Aiqin
Wang, Baodui
author_facet Meng, Genping
Mu, Xijiao
Zhen, Liping
Hai, Jun
Zhang, Zefan
Hao, Tianzhi
Lu, Siyu
Wang, Aiqin
Wang, Baodui
author_sort Meng, Genping
collection PubMed
description Perovskite quantum dots (QDs) are promising as representative candidates to construct next-generation superior artificial light-harvesting systems (ALHSs). However, their high sensitivity to external environments, especially to water, imposes a stringent limitation for their actual implementation. Herein, by interface engineering and encapsulation with natural palygorskite (PAL), a water-resistant light-harvesting CsPbBr(3)@PAL antenna was prepared. Molecular dynamics simulations further confirm a significant shielding protection of the PAL matrix to CsPbBr(3), facilitating exceptional stability of the CsPbBr(3)@PAL antenna when exposed to air for 10 months, to 150 °C thermal stress, and even to water for more than 30 days, respectively. Furthermore, as a result of in situ encapsulation of the PAL matrix and defect passivation caused by H-bonding and coordination-bonding interaction, the CsPbBr(3)@PAL antenna in water shows a substantially enhanced photoluminescence quantum yield (36.2%) and longer lifetime. After sequentially assembling Eosin Y and Rose Bengal in the pores of the PAL matrix, RB-ESY-CsPbBr(3)@PAL with a sequential two-step efficient Förster resonance energy transfer process exhibited extremely enhanced photocatalytic activity toward Friedel–Crafts alkylation reactions in aqueous solution, 2.5-fold higher than that of corresponding ESY/RB. Our work provides a feasible strategy for the exploitation of ultra-stable halide perovskite-based ALHSs in aqueous media for solar-energy conversion.
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spelling pubmed-97285762022-12-19 Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water Meng, Genping Mu, Xijiao Zhen, Liping Hai, Jun Zhang, Zefan Hao, Tianzhi Lu, Siyu Wang, Aiqin Wang, Baodui Chem Sci Chemistry Perovskite quantum dots (QDs) are promising as representative candidates to construct next-generation superior artificial light-harvesting systems (ALHSs). However, their high sensitivity to external environments, especially to water, imposes a stringent limitation for their actual implementation. Herein, by interface engineering and encapsulation with natural palygorskite (PAL), a water-resistant light-harvesting CsPbBr(3)@PAL antenna was prepared. Molecular dynamics simulations further confirm a significant shielding protection of the PAL matrix to CsPbBr(3), facilitating exceptional stability of the CsPbBr(3)@PAL antenna when exposed to air for 10 months, to 150 °C thermal stress, and even to water for more than 30 days, respectively. Furthermore, as a result of in situ encapsulation of the PAL matrix and defect passivation caused by H-bonding and coordination-bonding interaction, the CsPbBr(3)@PAL antenna in water shows a substantially enhanced photoluminescence quantum yield (36.2%) and longer lifetime. After sequentially assembling Eosin Y and Rose Bengal in the pores of the PAL matrix, RB-ESY-CsPbBr(3)@PAL with a sequential two-step efficient Förster resonance energy transfer process exhibited extremely enhanced photocatalytic activity toward Friedel–Crafts alkylation reactions in aqueous solution, 2.5-fold higher than that of corresponding ESY/RB. Our work provides a feasible strategy for the exploitation of ultra-stable halide perovskite-based ALHSs in aqueous media for solar-energy conversion. The Royal Society of Chemistry 2022-11-17 /pmc/articles/PMC9728576/ /pubmed/36540813 http://dx.doi.org/10.1039/d2sc05220b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Meng, Genping
Mu, Xijiao
Zhen, Liping
Hai, Jun
Zhang, Zefan
Hao, Tianzhi
Lu, Siyu
Wang, Aiqin
Wang, Baodui
Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title_full Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title_fullStr Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title_full_unstemmed Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title_short Confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
title_sort confinement and passivation of perovskite quantum dots in porous natural palygorskite toward an efficient and ultrastable light-harvesting system in water
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9728576/
https://www.ncbi.nlm.nih.gov/pubmed/36540813
http://dx.doi.org/10.1039/d2sc05220b
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