Bromocresol Green/Mesoporous Silica Adsorbent for Ammonia Gas Sensing via an Optical Sensing Instrument
| dc.citation.epage | 4072 | en_US |
| dc.citation.issue | 4 | en_US |
| dc.citation.spage | 4060 | en_US |
| dc.citation.volume | 11 | en_US |
| dc.citation.woscount | 10 | |
| dc.contributor.author | Chang, Yu-Chang | en_US |
| dc.contributor.author | Bai, Hsunling | en_US |
| dc.contributor.author | Li, Shou-Nan | en_US |
| dc.contributor.author | Kuo, Chun-Nan | en_US |
| dc.contributor.department | 環境工程研究所 | zh_TW |
| dc.contributor.department | Institute of Environmental Engineering | en_US |
| dc.date.accessioned | 2014-12-08T15:11:48Z | |
| dc.date.available | 2014-12-08T15:11:48Z | |
| dc.date.issued | 2011-04-01 | en_US |
| dc.description.abstract | A meso-structured Al-MCM-41 material was impregnated with bromocresol green (BG) dye and then incorporated into a UV-Vis DRA spectroscopic instrument for the online detection of ammonia gas. The absorption response of the Al-MCM-41/BG ammonia sensing material was very sensitive at the optical absorption wavelength of 630 nm. A high linear correlation was achieved for ppmv and sub-ppmv levels of ammonia gas. The response time for the quantitative detection of ammonia gas concentrations ranging from 0.25 to 2.0 ppmv was only a few minutes. The lower detection limit achieved was 0.185 ppmv. The color change process was fully reversible during tens of cycling tests. These features together make this mesoporous Al-MCM-41 material very promising for optical sensing applications. | en_US |
| dc.identifier.doi | 10.3390/s110404060 | en_US |
| dc.identifier.issn | 1424-8220 | en_US |
| dc.identifier.journal | SENSORS | en_US |
| dc.identifier.uri | http://dx.doi.org/10.3390/s110404060 | en_US |
| dc.identifier.uri | https://ir.lib.nycu.edu.tw/handle/11536/9055 | |
| dc.identifier.wosnumber | WOS:000289231600034 | |
| dc.language.iso | en_US | en_US |
| dc.subject | ammonia gas | en_US |
| dc.subject | optical sensor | en_US |
| dc.subject | mesoporous silica material | en_US |
| dc.subject | UV-Vis absorbance | en_US |
| dc.subject | bromocresol green dye | en_US |
| dc.title | Bromocresol Green/Mesoporous Silica Adsorbent for Ammonia Gas Sensing via an Optical Sensing Instrument | en_US |
| dc.type | Article | en_US |