Self-powered molecularly imprinted photoelectrochemical sensor based on Ppy/QD/HOF heterojunction for the detection of bisphenol A.
Food Chem
; 443: 138499, 2024 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-38277929
ABSTRACT
As an emerging porous material, hydrogen-bonded organic framework materials (HOFs) still pose application challenges. In this work, the designed type "I + II" heterojunction extracted hot electrons from HOFs using quantum dots (QDs) and polypyrrole (Ppy), improving the stability and photoelectrochemical performance of materials. In addition to serving as a potential well, electropolymerized Ppy was used as a recognition element for bisphenol A (BPA), and a novel self-powered molecularly imprinted photoelectrochemical (MIP-PEC) sensor was designed. The sensing platform showed a linear relationship from 1 × 10-10 to 1 × 10-7 molâL-1 and from 1 × 10-7 to 1 molâL-1 with an acceptable detection limit of 4.2 × 10-11 molâL-1. This is the first application of HOFs in constructing MIP-PEC sensors and a new attempt to improve the stability of HOFs for the application of porous crystal materials in the sensing field.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenóis
/
Polímeros
/
Compostos Benzidrílicos
/
Impressão Molecular
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Food Chem
Ano de publicação:
2024
Tipo de documento:
Article