Many recent studies on water have conjectured a complex structure composed of hydrogen bonded low- and high-density domains. In this work the structure of pure water and aqueous solutions of silica gel (TEOS) has been investigated by using delayed luminescence, which previously have showed significant increase in aqueous salt solutions where low-density domain formation is expected. Photon emission shows an Arrhenius trend with an activation energy in water-TEOS solutions larger than in pure water and salt-water solutions. Moreover, delayed photon emission decay shows an intrinsic lifetime of about 5 ms both in solutions and in pure water that, along with secondary lifetimes induced by the presence of TEOS, could be related to the formation of different domains.

(2016). Delayed luminescence induced by complex domains in water and in TEOS aqueous solutions [journal article - articolo]. In PHYSICAL CHEMISTRY CHEMICAL PHYSICS. Retrieved from http://hdl.handle.net/10446/57583

Delayed luminescence induced by complex domains in water and in TEOS aqueous solutions

Rosace, Giuseppe;Salesi, Giovanni;
2016-01-01

Abstract

Many recent studies on water have conjectured a complex structure composed of hydrogen bonded low- and high-density domains. In this work the structure of pure water and aqueous solutions of silica gel (TEOS) has been investigated by using delayed luminescence, which previously have showed significant increase in aqueous salt solutions where low-density domain formation is expected. Photon emission shows an Arrhenius trend with an activation energy in water-TEOS solutions larger than in pure water and salt-water solutions. Moreover, delayed photon emission decay shows an intrinsic lifetime of about 5 ms both in solutions and in pure water that, along with secondary lifetimes induced by the presence of TEOS, could be related to the formation of different domains.
articolo
2016
Colleoni, Claudio; Esposito, Salvatore; Grasso, Rosaria; Gulino, Marisa; Musumeci, Francesco; Romeli, Davide; Rosace, Giuseppe; Salesi, Giovanni; Scor...espandi
(2016). Delayed luminescence induced by complex domains in water and in TEOS aqueous solutions [journal article - articolo]. In PHYSICAL CHEMISTRY CHEMICAL PHYSICS. Retrieved from http://hdl.handle.net/10446/57583
File allegato/i alla scheda:
File Dimensione del file Formato  
WATERTAU REPRINT.pdf

Solo gestori di archivio

Versione: publisher's version - versione editoriale
Licenza: Licenza default Aisberg
Dimensione del file 1.87 MB
Formato Adobe PDF
1.87 MB Adobe PDF   Visualizza/Apri
Pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/57583
Citazioni
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact