Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel
Owing to its extensive use and intrinsic toxicity, NH<sub>3</sub> detection is very crucial. Moisture can cause significant interference in the performance of sensors, and detecting NH<sub>3</sub> in high humidity is still a challenge. In this work, a humidity-activated NH<...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/24/24/8154 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850238944572080128 |
|---|---|
| author | Yaping Song Yihan Xia Wei Zhang Yunlong Yu Yanyu Cui Lichao Liu Tong Zhang Sen Liu Hongran Zhao Teng Fei |
| author_facet | Yaping Song Yihan Xia Wei Zhang Yunlong Yu Yanyu Cui Lichao Liu Tong Zhang Sen Liu Hongran Zhao Teng Fei |
| author_sort | Yaping Song |
| collection | DOAJ |
| description | Owing to its extensive use and intrinsic toxicity, NH<sub>3</sub> detection is very crucial. Moisture can cause significant interference in the performance of sensors, and detecting NH<sub>3</sub> in high humidity is still a challenge. In this work, a humidity-activated NH<sub>3</sub> sensor was prepared by urocanic acid (URA) modifying poly (ethylene glycol) diacrylate (PEGDA) via a thiol-ene click cross-linking reaction. The optimized sensor achieved a response of 70% to 50 ppm NH<sub>3</sub> at 80% RH, with a response time of 105.6 s and a recovery time of 346.8 s. The sensor was improved for response and recovery speed. In addition, the prepared sensor showed excellent selectivity to NH<sub>3</sub> in high-humidity environments, making it suitable for use in some areas with high humidity all the year round or in high-humidity areas such as the detection of respiratory gas. A detailed investigation of the humidity-activated NH<sub>3</sub>-sensing mechanism was conducted using complex impedance plot (CIP) measurements. |
| format | Article |
| id | doaj-art-b704702032134ab7b9cdc2a6633ba2f2 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-b704702032134ab7b9cdc2a6633ba2f22025-08-20T02:01:19ZengMDPI AGSensors1424-82202024-12-012424815410.3390/s24248154Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked HydrogelYaping Song0Yihan Xia1Wei Zhang2Yunlong Yu3Yanyu Cui4Lichao Liu5Tong Zhang6Sen Liu7Hongran Zhao8Teng Fei9State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaCollege of Naval Architecture and Ocean Engineering, Naval University of Engineering, P.O. Box No. 076, Wuhan 430033, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaState Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaOwing to its extensive use and intrinsic toxicity, NH<sub>3</sub> detection is very crucial. Moisture can cause significant interference in the performance of sensors, and detecting NH<sub>3</sub> in high humidity is still a challenge. In this work, a humidity-activated NH<sub>3</sub> sensor was prepared by urocanic acid (URA) modifying poly (ethylene glycol) diacrylate (PEGDA) via a thiol-ene click cross-linking reaction. The optimized sensor achieved a response of 70% to 50 ppm NH<sub>3</sub> at 80% RH, with a response time of 105.6 s and a recovery time of 346.8 s. The sensor was improved for response and recovery speed. In addition, the prepared sensor showed excellent selectivity to NH<sub>3</sub> in high-humidity environments, making it suitable for use in some areas with high humidity all the year round or in high-humidity areas such as the detection of respiratory gas. A detailed investigation of the humidity-activated NH<sub>3</sub>-sensing mechanism was conducted using complex impedance plot (CIP) measurements.https://www.mdpi.com/1424-8220/24/24/8154humidity-activated ammonia sensorurocanic acidfast recovery |
| spellingShingle | Yaping Song Yihan Xia Wei Zhang Yunlong Yu Yanyu Cui Lichao Liu Tong Zhang Sen Liu Hongran Zhao Teng Fei Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel Sensors humidity-activated ammonia sensor urocanic acid fast recovery |
| title | Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel |
| title_full | Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel |
| title_fullStr | Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel |
| title_full_unstemmed | Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel |
| title_short | Humidity-Activated Ammonia Sensor Based on Carboxylic Functionalized Cross-Linked Hydrogel |
| title_sort | humidity activated ammonia sensor based on carboxylic functionalized cross linked hydrogel |
| topic | humidity-activated ammonia sensor urocanic acid fast recovery |
| url | https://www.mdpi.com/1424-8220/24/24/8154 |
| work_keys_str_mv | AT yapingsong humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT yihanxia humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT weizhang humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT yunlongyu humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT yanyucui humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT lichaoliu humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT tongzhang humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT senliu humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT hongranzhao humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel AT tengfei humidityactivatedammoniasensorbasedoncarboxylicfunctionalizedcrosslinkedhydrogel |