Research articles
ScienceAsia 52 (2023): 1-8 |doi:
10.2306/scienceasia1513-1874.2023.013
Carboxyl-functionalized silica sphere-modified quartz crystal
microbalance for ppb-level detection of aniline in water
Luyu Wanga,*, Jia Songb, Chunyang Yuc
ABSTRACT: Aniline is one of the sources of water pollution and also a carcinogenic substance, posing a threat to
ecological balance and human health. With the increasing demand for aniline detection, quartz crystal microbalance
(QCM) detection is highly advantageous due to its high sensitivity and stable performance. Here, we fabricated
carboxyl-functionalized silica spheres (SiO2
?COOH spheres) through a post-synthesis modification method. The
SiO2
?COOH spheres were used as the sensing material in a QCM sensor for aniline detection in water. This QCM
sensor could detect 10 ppb of aniline with a frequency shift of approximately 180 Hz within 150 s. Furthermore, the
continuous response, selectivity, and anti-interference capability of the sensor were systematically investigated. This
study shows that the method is fast and cost-effective and can be adapted to various on-site inspection sites.
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| a |
College of Artificial Intelligence and E-Commerce, Zhejiang Gongshang University Hangzhou College of Commerce,
Hangzhou 311599 China |
| b |
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 China |
| c |
Design-AI Laboratory, China Academy of Art, Hangzhou 310009 China |
* Corresponding author, E-mail: yucyzju@hotmail.com
Received 15 Nov 2024, Accepted 0 0000
|
