Recent progress on mass-sensitive gas sensors for environmental and industrial applications

Measurement, Journal Year: 2025, Volume and Issue: unknown, P. 117039 - 117039

Published: Feb. 1, 2025

Language: Английский

Quartz Crystal Microbalance Coated with a Polyvinylpyrrolidone Microfiber Active Layer as a High-Performance Acetic Acid Gas Sensor

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Acetic acid is among the most common and damaging airborne contaminants. Exposure to acetic gas can irritate nose throat, which may harm human health. In light of increasing use in industry, there a critical need for an detection device that operate real time with excellent performance. This study developed sensor using quartz crystal microbalance (QCM) deposited polyvinylpyrrolidone (PVP) microfiber by well-recognized electrospinning method. Scanning electron microscopy (SEM) Fourier-transform infrared (FTIR) spectroscopy were employed observe morphology chemical composition fabricated microfibers. The obtained has high sensitivity (4.144 ± 0.039) Hz·ppm–1 low limit rapid response recovery times 75 66 s, respectively. addition, also exhibits good performance as well repeatability long-term stability. Selectivity tests conducted various analytes exhibited selectivity toward acid. These advancements demonstrate PVP active layers not only address challenges enhancing but provide unique mechanism molecules. However, advanced future research must still be improve reversibility, making more suitable applications environment.

Language: Английский

A polyaniline-enhanced quartz crystal microbalance sensor for room-temperature camphor detection

Analytical Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

This study used quartz crystal microbalance (QCM) as the sensor base, which was coated with nanofiber and drop cast using polyaniline (PANi) to detect camphor. As a result, camphor high performance obtained.

Language: Английский