期刊
SYNTHETIC METALS
卷 233, 期 -, 页码 22-27出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2017.08.005
关键词
Polyaniline; In situ polymerization; Flexible device; Disposable device; Ammonia sensor
资金
- CAPES [99999.006608/2015-09]
- CNPq [402.287/2013-4, 303.796/2014-6]
- SISNANO/MCTI
- FINEP
- FAPESP [2016/23793-4]
- Embrapa AgroNano research network
- DOE
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [16/23793-4] Funding Source: FAPESP
Ammonia (NH3) gas monitoring is of outmost importance, once its emission above toxic levels in poultry farms can cause environmental pollution and also pose a threat on the quality of livestock, affecting the poultry production and health. Herein we report on the development of a low cost, flexible and disposable sensor device (GFP@PSS/PANI) for sensitive and selective ammonia detection at room temperature. Specifically, the sensing platform was composed by a glass microfiber paper (GFP) coated with poly(sodium 4-styrenesulfonate) (PSS) through drop-casting and polyaniline (PANI) through in situ polymerization. Various techniques including SEM and FTIR were employed to characterize the as-prepared sensing materials. Upon exposure to ammonia, the developed sensor device shows a rapid, sensitive and reversible response with a limit detection of 125 ppb and good selectivity against other common interferents such as nitrogen dioxide and carbon monoxide, most commonly found in poultry farm environment. This study provides a simple method to prepare a unique room-temperature ammonia sensing platform of low-cost and high performance, which is suitable for monitoring and controlling ammonia level in poultry farms.
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