Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature
The presence of ammonia in exhaled human breath serves as a crucial biomarker for renal diseases. This paper presents a highly sensitive ammonia sensor operable at room temperature, utilizing a Ti/Zr dual metal MOF as its core component, synthesized through a straightforward solvothermal reaction ap...
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Elsevier
2024-12-01
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| Series: | Sensors and Actuators Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666053924000328 |
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| author | Zhiming Chen Zhiwen Shi Peng Zhang Li Gao Bingxin Liu Lijuan Qiao |
| author_facet | Zhiming Chen Zhiwen Shi Peng Zhang Li Gao Bingxin Liu Lijuan Qiao |
| author_sort | Zhiming Chen |
| collection | DOAJ |
| description | The presence of ammonia in exhaled human breath serves as a crucial biomarker for renal diseases. This paper presents a highly sensitive ammonia sensor operable at room temperature, utilizing a Ti/Zr dual metal MOF as its core component, synthesized through a straightforward solvothermal reaction approach. The Ti/Zr-MOF demonstrates excellent responsiveness to ammonia gas, with a detection limit of remarkable sensitivity, reaching as low as 2 ppm. Notably, the sensor exhibits practical insensitivity to similar concentrations of other major interfering breath volatiles, including acetone, ethanol, and saturated moisture. Electron Paramagnetic Resonance (EPR) analysis confirms the presence of oxygen vacancies (Ov) in Ti/Zr-MOF materials, with Ti/Zr-MOF exhibiting stronger Ov signals and the potential for enhanced NH3 adsorption and capture. In-situ FTIR spectrum analysis reveals ammonia-induced -OH (H2O) moiety formation, indicating a reaction between adsorbed O2− species and ammonia, resulting in decreased electrical resistance of Ti/Zr-MOF. |
| format | Article |
| id | doaj-art-48cfbf8cd72c43f5945d262045fb1e62 |
| institution | Kabale University |
| issn | 2666-0539 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sensors and Actuators Reports |
| spelling | doaj-art-48cfbf8cd72c43f5945d262045fb1e622024-11-15T06:14:57ZengElsevierSensors and Actuators Reports2666-05392024-12-018100216Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperatureZhiming Chen0Zhiwen Shi1Peng Zhang2Li Gao3Bingxin Liu4Lijuan Qiao5School of Mechanical Engineering, Qinghai University, Xining, 810016, PR ChinaSchool of Mechanical Engineering, Qinghai University, Xining, 810016, PR ChinaSchool of Mechanical Engineering, Qinghai University, Xining, 810016, PR China; Qinghai Province Key Laboratory of Salt Lake Materials Chemical Engineering, Qinghai University, Xining 810016, ChinaSchool of Mechanical Engineering, Qinghai University, Xining, 810016, PR China; Qinghai Province Key Laboratory of Salt Lake Materials Chemical Engineering, Qinghai University, Xining 810016, China; Corresponding authors.School of Mechanical Engineering, Qinghai University, Xining, 810016, PR China; Qinghai Province Key Laboratory of Salt Lake Materials Chemical Engineering, Qinghai University, Xining 810016, China; Corresponding authors.Research Center of Basic Medical Science, Medical College, Qinghai University, Xining, 810016, PR ChinaThe presence of ammonia in exhaled human breath serves as a crucial biomarker for renal diseases. This paper presents a highly sensitive ammonia sensor operable at room temperature, utilizing a Ti/Zr dual metal MOF as its core component, synthesized through a straightforward solvothermal reaction approach. The Ti/Zr-MOF demonstrates excellent responsiveness to ammonia gas, with a detection limit of remarkable sensitivity, reaching as low as 2 ppm. Notably, the sensor exhibits practical insensitivity to similar concentrations of other major interfering breath volatiles, including acetone, ethanol, and saturated moisture. Electron Paramagnetic Resonance (EPR) analysis confirms the presence of oxygen vacancies (Ov) in Ti/Zr-MOF materials, with Ti/Zr-MOF exhibiting stronger Ov signals and the potential for enhanced NH3 adsorption and capture. In-situ FTIR spectrum analysis reveals ammonia-induced -OH (H2O) moiety formation, indicating a reaction between adsorbed O2− species and ammonia, resulting in decreased electrical resistance of Ti/Zr-MOF.http://www.sciencedirect.com/science/article/pii/S2666053924000328Breath analysisAmmonia sensorMOFOxygen vacancies |
| spellingShingle | Zhiming Chen Zhiwen Shi Peng Zhang Li Gao Bingxin Liu Lijuan Qiao Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature Sensors and Actuators Reports Breath analysis Ammonia sensor MOF Oxygen vacancies |
| title | Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature |
| title_full | Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature |
| title_fullStr | Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature |
| title_full_unstemmed | Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature |
| title_short | Trace ammonia detection realized by mixed Ti-Zr metal-organic-frameworks and its application in exhaled breath sensing at room temperature |
| title_sort | trace ammonia detection realized by mixed ti zr metal organic frameworks and its application in exhaled breath sensing at room temperature |
| topic | Breath analysis Ammonia sensor MOF Oxygen vacancies |
| url | http://www.sciencedirect.com/science/article/pii/S2666053924000328 |
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