Quantitative XRD characterisation and gas-phase photocatalytic activity testing for visible-light (indoor applications) of KRONOClean 7000®

D Tobaldi; M Seabra; G. Otero-Irurueta; Yolanda Miguel; Richard Ball; M. K.  Singh; R. C.  Pullar; J A Labrincha

doi:10.1039/c5ra22816f

Quantitative XRD characterisation and gas-phase photocatalytic activity testing for visible-light (indoor applications) of KRONOClean 7000®

D Tobaldi, M Seabra, G. Otero-Irurueta, Yolanda Miguel, Richard Ball, M. K. Singh, R. C. Pullar, J A Labrincha

Department of Architecture & Civil Engineering

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Abstract

Carbon-modified commercial anatase (KRONOClean 7000®) was quantitatively characterised with XRD for the first time – full phase composition (both crystalline and amorphous content) and microstructure. The material was found to be bimodal anatase, mostly 4 nm diameter, but with a small amount of a larger fraction between 12 and 15 nm. Absorption in the visible range was confirmed by UV-Vis analysis, whilst XPS showed that an aromatic carbon compound is at the origin of that absorption. Also, the photocatalytic activity of this commercial nano-TiO2 was assessed, monitoring the abatement of NOx
using a white LED lamp, irradiating exclusively in the visible region. Experiments simulated an indoor environment, highlighting the potential of this nano-TiO2 for adoption as a standard for visible-light photocatalytic activity, i.e. applications for innovative interior eco-building materials.

Original language	English
Article number	5
Pages (from-to)	102911-102918
Number of pages	8
Journal	RSC Advances
Issue number	124
Early online date	26 Nov 2015
DOIs	https://doi.org/10.1039/c5ra22816f
Publication status	Published - 30 Nov 2015

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2015 Tobaldi RSC Advances.PDFAccepted author manuscript, 1.12 MBLicence: CC BY-NC-ND

Richard Ball
- R.J.Ballbath.acuk
Person: Research & Teaching, Core staff, Affiliate staff

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title = "Quantitative XRD characterisation and gas-phase photocatalytic activity testing for visible-light (indoor applications) of KRONOClean 7000{\textregistered}",

abstract = "Carbon-modified commercial anatase (KRONOClean 7000{\textregistered}) was quantitatively characterised with XRD for the first time – full phase composition (both crystalline and amorphous content) and microstructure. The material was found to be bimodal anatase, mostly 4 nm diameter, but with a small amount of a larger fraction between 12 and 15 nm. Absorption in the visible range was confirmed by UV-Vis analysis, whilst XPS showed that an aromatic carbon compound is at the origin of that absorption. Also, the photocatalytic activity of this commercial nano-TiO2 was assessed, monitoring the abatement of NOxusing a white LED lamp, irradiating exclusively in the visible region. Experiments simulated an indoor environment, highlighting the potential of this nano-TiO2 for adoption as a standard for visible-light photocatalytic activity, i.e. applications for innovative interior eco-building materials.",

author = "D Tobaldi and M Seabra and G. Otero-Irurueta and Yolanda Miguel and Richard Ball and Singh, {M. K.} and Pullar, {R. C.} and Labrincha, {J A}",

year = "2015",

month = nov,

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doi = "10.1039/c5ra22816f",

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journal = "RSC Advances",

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AU - Tobaldi, D

AU - Seabra, M

AU - Otero-Irurueta, G.

AU - Miguel, Yolanda

AU - Ball, Richard

AU - Singh, M. K.

AU - Pullar, R. C.

AU - Labrincha, J A

PY - 2015/11/30

Y1 - 2015/11/30

N2 - Carbon-modified commercial anatase (KRONOClean 7000®) was quantitatively characterised with XRD for the first time – full phase composition (both crystalline and amorphous content) and microstructure. The material was found to be bimodal anatase, mostly 4 nm diameter, but with a small amount of a larger fraction between 12 and 15 nm. Absorption in the visible range was confirmed by UV-Vis analysis, whilst XPS showed that an aromatic carbon compound is at the origin of that absorption. Also, the photocatalytic activity of this commercial nano-TiO2 was assessed, monitoring the abatement of NOxusing a white LED lamp, irradiating exclusively in the visible region. Experiments simulated an indoor environment, highlighting the potential of this nano-TiO2 for adoption as a standard for visible-light photocatalytic activity, i.e. applications for innovative interior eco-building materials.

AB - Carbon-modified commercial anatase (KRONOClean 7000®) was quantitatively characterised with XRD for the first time – full phase composition (both crystalline and amorphous content) and microstructure. The material was found to be bimodal anatase, mostly 4 nm diameter, but with a small amount of a larger fraction between 12 and 15 nm. Absorption in the visible range was confirmed by UV-Vis analysis, whilst XPS showed that an aromatic carbon compound is at the origin of that absorption. Also, the photocatalytic activity of this commercial nano-TiO2 was assessed, monitoring the abatement of NOxusing a white LED lamp, irradiating exclusively in the visible region. Experiments simulated an indoor environment, highlighting the potential of this nano-TiO2 for adoption as a standard for visible-light photocatalytic activity, i.e. applications for innovative interior eco-building materials.

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DO - 10.1039/c5ra22816f

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Quantitative XRD characterisation and gas-phase photocatalytic activity testing for visible-light (indoor applications) of KRONOClean 7000®

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