Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film
Sensitive, selective and fast detection of chemical warfare agents is necessary for anti-terrorism purposes. In our search for functional materials sensitive to dimethyl methylphosphonate (DMMP), a simulant of sarin and other toxic organophosphorus compounds, we found that zinc oxide (ZnO) modificat...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2010-09-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/10/9/8275/ |
| _version_ | 1817991281668784128 |
|---|---|
| author | Guang Li Wuming Zhang Zhiyuan Luo Pengfei Ding Xingfa Ma Zhifu Pei |
| author_facet | Guang Li Wuming Zhang Zhiyuan Luo Pengfei Ding Xingfa Ma Zhifu Pei |
| author_sort | Guang Li |
| collection | DOAJ |
| description | Sensitive, selective and fast detection of chemical warfare agents is necessary for anti-terrorism purposes. In our search for functional materials sensitive to dimethyl methylphosphonate (DMMP), a simulant of sarin and other toxic organophosphorus compounds, we found that zinc oxide (ZnO) modification potentially enhances the absorption of DMMP on a manganese dioxide (MnO2) surface. The adsorption behavior of DMMP was evaluated through the detection of tiny organophosphonate compounds with quartz crystal microbalance (QCM) sensors coated with ZnO-modified MnO2 nanofibers and pure MnO2 nanofibers. Experimental results indicated that the QCM sensor coated with ZnO-modified nanostructured MnO2 film exhibited much higher sensitivity and better selectivity in comparison with the one coated with pure MnO2 nanofiber film. Therefore, the DMMP sensor developed with this composite nanostructured material should possess excellent selectivity and reasonable sensitivity towards the tiny gaseous DMMP species. |
| first_indexed | 2024-04-14T01:11:08Z |
| format | Article |
| id | doaj.art-614e0bb082d4455cb1019e1b78d4c474 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:11:08Z |
| publishDate | 2010-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-614e0bb082d4455cb1019e1b78d4c4742022-12-22T02:21:04ZengMDPI AGSensors1424-82202010-09-011098275829010.3390/s100908275Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide FilmGuang LiWuming ZhangZhiyuan LuoPengfei DingXingfa MaZhifu PeiSensitive, selective and fast detection of chemical warfare agents is necessary for anti-terrorism purposes. In our search for functional materials sensitive to dimethyl methylphosphonate (DMMP), a simulant of sarin and other toxic organophosphorus compounds, we found that zinc oxide (ZnO) modification potentially enhances the absorption of DMMP on a manganese dioxide (MnO2) surface. The adsorption behavior of DMMP was evaluated through the detection of tiny organophosphonate compounds with quartz crystal microbalance (QCM) sensors coated with ZnO-modified MnO2 nanofibers and pure MnO2 nanofibers. Experimental results indicated that the QCM sensor coated with ZnO-modified nanostructured MnO2 film exhibited much higher sensitivity and better selectivity in comparison with the one coated with pure MnO2 nanofiber film. Therefore, the DMMP sensor developed with this composite nanostructured material should possess excellent selectivity and reasonable sensitivity towards the tiny gaseous DMMP species.http://www.mdpi.com/1424-8220/10/9/8275/quartz crystal microbalancegas sensorvolatile organic vaporDMMPnanowiremanganese dioxidezinc oxide |
| spellingShingle | Guang Li Wuming Zhang Zhiyuan Luo Pengfei Ding Xingfa Ma Zhifu Pei Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film Sensors quartz crystal microbalance gas sensor volatile organic vapor DMMP nanowire manganese dioxide zinc oxide |
| title | Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film |
| title_full | Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film |
| title_fullStr | Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film |
| title_full_unstemmed | Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film |
| title_short | Study of a QCM Dimethyl Methylphosphonate Sensor Based on a ZnO-Modified Nanowire-Structured Manganese Dioxide Film |
| title_sort | study of a qcm dimethyl methylphosphonate sensor based on a zno modified nanowire structured manganese dioxide film |
| topic | quartz crystal microbalance gas sensor volatile organic vapor DMMP nanowire manganese dioxide zinc oxide |
| url | http://www.mdpi.com/1424-8220/10/9/8275/ |
| work_keys_str_mv | AT guangli studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm AT wumingzhang studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm AT zhiyuanluo studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm AT pengfeiding studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm AT xingfama studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm AT zhifupei studyofaqcmdimethylmethylphosphonatesensorbasedonaznomodifiednanowirestructuredmanganesedioxidefilm |