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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2017

Contributo in rivista

Tipo: Articolo in rivista

Titolo: A smart nanofibrous material for adsorbing and detecting elemental mercury in air

Anno di pubblicazione: 2017

Formato: Elettronico Cartaceo

Autori: Antonella Macagnano, Viviana Perri, Emiliano Zampetti, Andrea Bearzotti, Fabrizio De Cesare, Francesca Sprovieri, and Nicola Pirrone

Affiliazioni autori: 1Institute of Atmospheric Pollution Research-CNR, Via Salaria km 29 300, 00016 Montelibretti (RM), Italy 2University of Calabria, Via Pietro Bucci, 87036 Arcavacata di Rende (CS), Italy 3DIBAF-University of Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy 4Institute of Atmospheric Pollution Research-CNR, Division of Rende, c/o UNICAL-Polifunzionale, 87036 Arcavacata di Rende (CS), Italy

Autori CNR:

  • ANDREA BEARZOTTI
  • FABRIZIO DE CESARE
  • ANTONELLA MACAGNANO
  • NICOLA PIRRONE
  • FRANCESCA SPROVIERI
  • EMILIANO ZAMPETTI

Lingua: inglese

Abstract: The combination of the affinity of gold for mercury and nanosized frameworks has allowed for the design and fabrication of novel kinds of sensors with promising sensing features for environmental applications. Specifically, conductive sensors based on composite nanofibrous electrospun layers of titania easily decorated with gold nanoparticles were developed to obtain nanostructured hybrid materials capable of entrapping and revealing gaseous elemental mercury (GEM) traces from the environment. The electrical properties of the resulting chemosensors were measured. A few minutes of air sampling were sufficient to detect the concentration of mercury in the air, ranging between 20 and 100 ppb, without using traps or gas carriers (LOD: 1.5 ppb). Longer measurements allowed the sensor to detect lower concentrations of GEM. The resulting chemosensors are expected to be low cost and very stable (due to the peculiar structure), requiring low power, low maintenance, and simple equipment.

Lingua abstract: inglese

Pagine da: 1

Pagine a: 11

Rivista:

Atmospheric chemistry and physics Copernicus Publ.
Paese di pubblicazione: Germania
Lingua: inglese
ISSN: 1680-7316

Numero volume: 17

DOI: 10.5194/acp-17-6883-2017

Referee: Ś: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • nanofibers
  • elemental mercury detection
  • atmosphere
  • advanced sensors
  • nanotechnology

URL: http://www.atmos-chem-phys.net/17/6883/2017/

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