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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2016

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Humidity effects on a novel eco-friendly chemosensor based on electrospun PANi/PHB nanofibres

Anno di pubblicazione: 2016

Formato: Elettronico Cartaceo

Autori: Macagnano A.; Perri V.; Zampetti E.; Bearzotti A.; De Cesare F.

Affiliazioni autori: Institute of Atmospheric Pollution Research, National Research Council, Via Salaria km. 29,300, Monterotondo, RM, 00016, Italy; University of Calabria, Arcavacata, Via Pietro Bucci, Rende, CS, 87036, Italy; DIBAF- University of Viterbo, Via S.C. de Lellis, Viterbo, 01100, Italy

Autori CNR:

  • ANDREA BEARZOTTI
  • FABRIZIO DE CESARE
  • ANTONELLA MACAGNANO
  • EMILIANO ZAMPETTI

Lingua: inglese

Abstract: An environmentally friendly conductive sensor to measure gases and volatile organic compounds (VOCs) in moistened environments, has been designed and fabricated. To achieve this goal, a biodegradable electrospun nanofibrous scaffold based on a polymer blend containing polyaniline and poly-3-hydroxybutirrate (PANi/PHB) has been employed. Several fabrics composed of distinct proportions of the two polymers have been tested. Morphology, electrical parameters and sensing features of the biodegradable nanofibrous layers have been investigated. The nanofibrous layers obtained through electrospinning technology carried out directly on chemoresistors resulted in highly porous membranes and the potentials of such blended scaffolds have been analyzed, focusing the attention on the influence of humidity on the features of the resulting sensors, also in terms of reproducibility and stability of their responses. Sensor responses to ammonia and further two chemical compounds differently interacting with PANi (i.e. triethylamine and acetic acid) have been measured in dry air and at different percentages of relative humidity, in order to assess in possible applications the influence of PHB in the interactions of PANi with the analytes tested. Due to the properties of the electrospun nanofibres used in these chemoresistors, water vapours seemed to hugely improve the chemical interactions with the selected analytes. This effect suggests a potential use of the proposed chemosensors in monitoring also strongly moist environments.

Lingua abstract: inglese

Pagine da: 16

Pagine a: 27

Rivista:

Sensors and actuators. B, Chemical Elsevier Sequoia
Paese di pubblicazione: Svizzera
Lingua: inglese
ISSN: 0925-4005

Numero volume: 232

DOI: 10.1016/j.snb.2016.03.055

Referee: Ś: Internazionale

Stato della pubblicazione: Published version

Indicizzato da: Scopus [2-s2.0-84962185182]

Parole chiave:

  • Humidity effects on a novel eco-friendly chemosensor based on electrospun PANi/PHB nanofibres

URL: http://www.scopus.com/record/display.url?eid=2-s2.0-84962185182&origin=inward

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