Photoluminescence Sensing of Soluble Lead in Children's Crayons Using Perovskite Nanocrystal In Situ Growth on an Aluminum Hydroxide Layer.

ABSTRACT: In this study, a fluorescence sensing approach for lead ion (Pb²⁺) was developed using in situ growth of methylamine lead bromine (MAPbBr₃) perovskite on an aluminum hydroxide (Al(OH)₃) thin layer. The Al(OH)₃ thin layer could be obtained on a glass slide by liquid phase deposition and is of a large specific surface area and insoluble in water. After sulfhydryl functionalization, the Al(OH)₃ thin layer reveals effective adsorption and excellent enrichment ability to Pb²⁺ and is additionally used as the substrate for the in situ growth of lead halogen perovskite. The fluorescence sensing of Pb²⁺ could be realized by the fluorescence intensity of lead halogen perovskite on the Al(OH)₃ layer. The linear re

SUBMITTER: Zhang C 

PROVIDER: S-EPMC9954079 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature