Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Gas Phase TiO2 Photosensitized Mineralization of some VOCs: Mechanistic Suggestions Through a Langmuir-Hinshelwood Kinetic Approach

Version 1 : Received: 18 November 2020 / Approved: 19 November 2020 / Online: 19 November 2020 (15:20:44 CET)

How to cite: Bettoni, M.; Falcinelli, S.; Rol, C.; Rosi, M.; Sebastiani, G.V. Gas Phase TiO2 Photosensitized Mineralization of some VOCs: Mechanistic Suggestions Through a Langmuir-Hinshelwood Kinetic Approach. Preprints 2020, 2020110517 (doi: 10.20944/preprints202011.0517.v1). Bettoni, M.; Falcinelli, S.; Rol, C.; Rosi, M.; Sebastiani, G.V. Gas Phase TiO2 Photosensitized Mineralization of some VOCs: Mechanistic Suggestions Through a Langmuir-Hinshelwood Kinetic Approach. Preprints 2020, 2020110517 (doi: 10.20944/preprints202011.0517.v1).

Abstract

A jointed experimental and theoretical investigation pointing out new insights about the microscopic mechanism of the VOCs (volatile organic compounds) photocatalytic elimination by TiO2 has been done. Methane, hexane, isooctane, acetone and methanol have been photomineralized in a batch reactor. Values of K (adsorption constant on TiO2) and k (mineralization rate constant) of the five VOCs (treating the kinetic data through a Langmuir- Hinshelwood approach) have been determined. Recorded K and k values and performed theoretical calculations allowed us to suggest the involvement of an electron transfer step between the VOC and the hole, TiO2(h+), as the rate determining one.

Subject Areas

titanium dioxide; oxidation; photocatalysis; VOCs mineralization; Langmuir-Hinshelwood

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.