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

Carbon-modified commercial anatase (KRONOClean 7000 (R)) 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 similar to 4 nm diameter, but with a small...

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Bibliographic Details
Main Author: Tobaldi, D. M. (author)
Other Authors: Seabra, M. P. (author), Otero-Irurueta, G. (author), de Miguel, Y. R. (author), Ball, R. J. (author), Singh, M. K. (author), Pullar, R. C. (author), Labrincha, J. A. (author)
Format: article
Language:eng
Published: 2017
Subjects:
CARBON-MODIFIED TITANIA
ORGANIC CONTAMINANTS
ANATASE TIO2
NANO-TITANIA
DEGRADATION
DIOXIDE
BEHAVIOR
OXIDES
SEMICONDUCTOR
REMOVAL
Online Access:http://hdl.handle.net/10773/20094
Country:Portugal
Oai:oai:ria.ua.pt:10773/20094
Description
Summary:Carbon-modified commercial anatase (KRONOClean 7000 (R)) 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 similar to 4 nm diameter, but with a small amount of a larger fraction between similar to 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.

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