Performance and Mechanism Analysis of Hexagonal Co(OH)F/Carbon Quantum Dots Composite Sensor Synthesized by PVP-Assisted Method for Acetone Gas Detection

ACS Sensors, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Acetone gas sensitivity detection holds significant application value in environmental monitoring, industrial safety, and health assessment. This study presents the first report on assembly of carbon quantum dots (CQDs) surface hollow hexagonal Co(OH)F for efficient acetone detection. The fabricated sensor exhibits ability to detect at a low concentration 200 ppb 120 °C, demonstrating excellent moisture resistance long-term stability. incorporation CQDs not only reduces operating temperature but also enhances gas-sensing performance Co(OH)F, offering simple eco-friendly strategy optimizing sensors. We systematically analyzed synergistic effect between their role functional groups combine with surface, improving electron transfer efficiency potentially lowering activation energy molecule reactions through catalytic effects, enabling low-temperature modification chemistry by strengthens recognition capability. coupling metal hydroxyl fluoride plays crucial multiple mechanisms, providing an innovative approach development high-performance

Language: Английский

“Off-on” fluorescence sensor based on phytic acid carbon dots for OH−/H+ detection in metal corrosion

Applied Surface Science, Journal Year: 2024, Volume and Issue: 682, P. 161680 - 161680

Published: Nov. 2, 2024

Language: Английский