Issue 124, 2015
From the journal:

RSC Advances

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

D. M. Tobaldi,*a   M. P. Seabra,a   G. Otero-Irurueta,b   Y. R. de Miguel,c   R. J. Ball,d   M. K. Singh,b   R. C. Pullara  and  J. A. Labrinchaa  

* Corresponding authors

a Department of Materials and Ceramic Engineering, CICECO – Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
E-mail: david.tobaldi@ua.pt, david@davidtobaldi.org
Tel: +351 234 370 041

b Center for Mechanical Technology and Automation – TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal

c TECNALIA, Parque Tecnológico de Bizkaia, C/Geldo, Edificio 700, E-48160 Derio, Bizkaia, Spain

d BRE Centre for Innovative Construction Materials, Department of Architecture and Civil Engineering, University of Bath, Claverton Down, Bath, UK

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.

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

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Article information

DOI
https://doi.org/10.1039/C5RA22816F
Article type
Paper
Submitted
30 Oct 2015
Accepted
24 Nov 2015
First published
26 Nov 2015

RSC Adv., 2015,5, 102911-102918

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

D. M. Tobaldi, M. P. Seabra, G. Otero-Irurueta, Y. R. de Miguel, R. J. Ball, M. K. Singh, R. C. Pullar and J. A. Labrincha, RSC Adv., 2015, 5, 102911 DOI: 10.1039/C5RA22816F

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