Design of novel colorimetric sensors based on Fe(II) for detection of volatile organic compounds
(2023)
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Details
- Authors
- Supervisors
- Garcia, Yann
- Abstract
- Volatile organic compounds (VOCs), which can enter the human body through the respiratory tract, skin, and diet, will cause discomfort to the human body when certain limits are reached, leading to poisoning or even death in severe cases. Therefore, to establish a healthy and safe living environment, the detection and analysis of VOCs are one of the hot research directions in modern analytical chemistry. Relying on large equipment detection technology is costly; the sophisticated operation of precision instruments requires professionals. It is not easy to achieve widespread popularity and convenient, rapid, real-time detection. Based on the various dilemmas faced by small molecule detection and analysis described in the previously mentioned, firstly, this thesis proposes the construction of novel and porous 3D SCO Fe(II) coordination polymers based on ligands like-4,4’-bipyridine for the detection of CHCl3 or CH2Cl2 molecules, accompanied with changing color and magnetic properties at room temperature. Secondly, to quantification of detected a wide range of hazardous gas-phase molecules at room temperature, novel Fe(II)-based colorimetric visible sensors with tetrazole ligands, to design sensing detectors with high sensitivity, selectivity, low-cost, simple operation, real-time, in situ, and simultaneous identification and analysis of multiple targets at room temperature. In addition, at the end of this thesis, we found that the colorimetric sensor, Fe(II)-based colorimetric visible sensors with tetrazole ligands provides real-time monitoring and in-situ assessment of meat freshness (Ammonia has been used as an important indicator of food spoilage state) using simple color recognition by a smartphone at room temperature. Therefore, it establishes a multidisciplinary research and communication network in response to the detection of gases released during food spoilage, involving the entire value chain from food preservation to consumer products. In all in, a simple and efficient detection method for monitoring food spoilage can not only avoid excessive food waste but also protect the safety of consumers and food safety.
- Affiliations
Citations
Sun, L. (2023). Design of novel colorimetric sensors based on Fe(II) for detection of volatile organic compounds. https://hdl.handle.net/2078.5/26138