Synthesis of Co-TiO2 Nanostructured Photo-Catalytic Coatings for MDF Substrates
authors Giampiccolo, A; Ansell, MP; Tobaldi, DM; Ball, RJ
nationality International
journal GREEN MATERIALS
keywords MEDIUM-DENSITY FIBERBOARD; PHOTOCATALYTIC ACTIVITY; TIO2 PHOTOCATALYSIS; ANATASE; TITANIA; NANOPARTICLES; PHASE
abstract Aggregates of undoped and cobalt-doped TiO2 nanoparticles were prepared through a sol gel method followed by annealing at 450 degrees C to obtain an anatase structure. The resulting aggregates were characterized using field emission scanning electron microscopy, scanning electron microscopy with energy dispersive X-ray analysis and Raman spectroscopy. Photocatalytic (PC) activity of the annealed nanostructures was evaluated through monitoring the degradation of a methylene blue solution containing the aggregated nanoparticles and comparisons made to compare to pure TiO2 (P25) and carbon doped TiO2 (Kronoclean 7000). Degradation under UV radiation (375-385nm), green light (525-535nm) and white light (5200K) was determined quantitatively using a UV-Vis spectrophotometer to measure the decreasing intensity of the blue colour. The Co-TiO2, Kronoclean 7000 and undoped nanoparticles were then applied to the surface of MDF substrates. Experimental results show that in all cases nanostructured particles aggregated to form micro-grains. Furthermore the photocatalytic activity tests indicated a change in the band gap of the Co-doped particles since the photocatalytic activity was greater under visible light compared to a pure TiO2. Preliminary tests on the coatings indicated photocatalytic activity in all the substrates studied. The results suggest that the incorporation of Co-doped TiO2 nanoparticles in coatings has the potential for improving indoor air quality by decomposing volatile organic compounds (VOCs) using both visible and UV light.
publisher ICE PUBLISHING
issn 2049-1220
year published 2016
volume 4
issue 4
digital object identifier (doi) 10.1680/jgrma.16.00004
web of science category GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Materials Science, Multidisciplinary; Polymer Science
subject category Science & Technology - Other Topics; Materials Science; Polymer Science
unique article identifier WOS:000388391700001
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 1.344
5 year journal impact factor 1.692
category normalized journal impact factor percentile 29.645
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg