Fabrication and application of an activated carbon-coated quartz crystal sensor

Kim, Young Han; Choi, Kwang Jae

doi:10.1016/s0925-4005(02)00239-3

Cited by 18 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the observation of water quality in industrial treatment systems, reliable long-term stability of the frequency signal is essential. Furthermore, for Cu(II) determination in wastewater, molecularly imprinted quartz-based polymer microbalance sensors were used [33,34]. Fast response times (typically ~ 10 s) are benefits of employing QCMs, while reaction times of 30 s to 1 min have been reported [35,36].…”

Section: Quartz Crystal Microbalance (Qcm) Sensormentioning

confidence: 99%

Gas Sensor Applications in Water Quality Monitoring and Maintenance

Yadav

Indurkar

2021

Water Conserv Sci Eng

View full text Add to dashboard Cite

Industrial and population expansion in the last few decades has been a critical contributor to water quality degradation. Some of the gases emanating from water treatment plants are toxic and flammable, which need to be identified, such as hydrogen sulphide, carbon dioxide, methane, and carbon monoxide. Water quality monitoring systems must be developed to meet legal, environmental, and social requirements. Monitoring water quality is difficult due to the variability, nature, and low concentrations of contaminants that need to be detected. The gas emanating from these treatment processes plays an essential role in water treatment, monitoring, and control. Gas sensors can be used as a safety device in the water purification process. The gas sensors receive input signals in chemical, physical, and biological stimulus and convert them into electrical signals. The gas sensors can be installed in different wastewater treatment processes. In this review, we present state-of-the-art progresses, landmark developments, and technological achievements that led to the development of gas sensors for evaluating water quality. The role of gas sensors in water quality maintenance and monitoring is discussed, and different analytes and their detection technologies and sensing materials outlining their advantages and disadvantages have been summarized. Finally, a summary and outlook for future directions of gas sensors in water quality monitoring and maintenance are provided.

show abstract

Section: Quartz Crystal Microbalance (Qcm) Sensormentioning

confidence: 99%

Gas Sensor Applications in Water Quality Monitoring and Maintenance

Yadav

Indurkar

2021

Water Conserv Sci Eng

View full text Add to dashboard Cite

show abstract

Measurement of adsorption characteristics of alumina and activated carbon using a quartz crystal resonator with i-butane

Kim

Yamamoto

Byun

et al. 2010

Korean J. Chem. Eng.

View full text Add to dashboard Cite

A new device for measuring the pore characteristics of adsorbents is developed for fast measurement and convenient sample handling. The proposed device utilizes a quartz crystal resonator capable of detecting the change of mass loading in nanogram scale. The measured material is coated on the electrode surface of the resonator, and the change of resonant frequency of the resonator at different pressures of adsorbate gas is converted into the adsorbed amount used in the computation of the adsorption surface area and pore size. For the performance evaluation of the device, alumina and activated carbon are tested with the adsorbate, i-butane. The experimental results show that the proposed device gives comparable measurements with some deviation to the reference values of the adsorption characteristics. It is proved that the device is relatively simple and requires short measurement time and the mild condition of sample handling.

show abstract

Measurement of thermal property of polystyrene using dual quartz crystal resonators

Kim

2011

Korean J. Chem. Eng.

View full text Add to dashboard Cite

A new device using dual quartz crystal resonators is proposed to determine the thermal property and morphological change of polystyrene. The resonators are installed in a small aluminum cell directly heated and air cooled according to the programmed temperature variation. The resonant frequencies of the dual resonators-one for reference and the other for sample-are measured and analyzed for the morphological change while their temperature varies. The temperatures of the changes are compared with the DSC thermogram and previously reported studies, and it is found that the measurements are comparable to those of the DSC. The proposed device is simple and easy to construct, and a portable system is available with some modification.

show abstract

Fabrication and application of an activated carbon-coated quartz crystal sensor

Cited by 18 publications

References 12 publications

Gas Sensor Applications in Water Quality Monitoring and Maintenance

Gas Sensor Applications in Water Quality Monitoring and Maintenance

Measurement of adsorption characteristics of alumina and activated carbon using a quartz crystal resonator with i-butane

Measurement of thermal property of polystyrene using dual quartz crystal resonators

Contact Info

Product

Resources

About