Carbon quantum dots/polypyrrole nanocomposite film as a quartz-crystal microbalance-based formaldehyde sensor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63595960" target="_blank" >RIV/70883521:28610/25:63595960 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0921510725006361?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0921510725006361?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mseb.2025.118612" target="_blank" >10.1016/j.mseb.2025.118612</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon quantum dots/polypyrrole nanocomposite film as a quartz-crystal microbalance-based formaldehyde sensor

Popis výsledku v původním jazyce

Formaldehyde is a hazardous indoor air pollutant due to its adverse effects on human health, highlighting the importance of precise monitoring and detection. Carbon quantum dots (CQDs)/polypyrrole (PPy) nanocomposites are attractive due to the synergistic behavior of constituents, and hence their films were selected to form a quartz-crystal microbalance (QCM) sensor for formaldehyde vapor. The CQDs/PPy nanocomposite film coated on the QCM electrode was fabricated by embedding CQDs into the PPy film through their adsorption from an aqueous medium onto the PPy film. The frequency change was linearly correlated with the formaldehyde concentration. The CQDs/PPy composite film detected a low concentration range of 0.58–5.82 mg L−1, which supports the high sensitivity of the composite film-based QCM sensor. The sensor exhibited good selectivity, reproducibility, stability, and repeatability for formaldehyde detection. The adsorption mechanism was explored. The diffusion of formaldehyde into the PPy and the CQDs/PPy nanocomposite films was studied.

Název v anglickém jazyce

Carbon quantum dots/polypyrrole nanocomposite film as a quartz-crystal microbalance-based formaldehyde sensor

Popis výsledku anglicky

Formaldehyde is a hazardous indoor air pollutant due to its adverse effects on human health, highlighting the importance of precise monitoring and detection. Carbon quantum dots (CQDs)/polypyrrole (PPy) nanocomposites are attractive due to the synergistic behavior of constituents, and hence their films were selected to form a quartz-crystal microbalance (QCM) sensor for formaldehyde vapor. The CQDs/PPy nanocomposite film coated on the QCM electrode was fabricated by embedding CQDs into the PPy film through their adsorption from an aqueous medium onto the PPy film. The frequency change was linearly correlated with the formaldehyde concentration. The CQDs/PPy composite film detected a low concentration range of 0.58–5.82 mg L−1, which supports the high sensitivity of the composite film-based QCM sensor. The sensor exhibited good selectivity, reproducibility, stability, and repeatability for formaldehyde detection. The adsorption mechanism was explored. The diffusion of formaldehyde into the PPy and the CQDs/PPy nanocomposite films was studied.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Science and Engineering B: Advanced Functional Solid-state Materials

ISSN

0921-5107

e-ISSN

1873-4944

Svazek periodika

322

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001548870900001

EID výsledku v databázi Scopus

2-s2.0-105011076918