Optical and photocatalytic behaviours of nanoparticles in the Ti-Zn-O binary system

Journal article


Goodall, JBM, Kellici, S, Illsley, D, Lines, R, Knowles, JC and Darr, JA (2014). Optical and photocatalytic behaviours of nanoparticles in the Ti-Zn-O binary system. RSC Advances. 4 (60), pp. 31799 - 31809.
AuthorsGoodall, JBM, Kellici, S, Illsley, D, Lines, R, Knowles, JC and Darr, JA
Abstract

Continuous hydrothermal flow synthesis (CHFS) has been used as a rapid and clean, synthetic method to produce a range of crystalline nanoparticles in the Ti-Zn-O binary system. The nanopowders were prepared from aqueous solutions of titanium(iv) bis(ammonium lactato)dihydroxide (TIBALD) and hydrated zinc nitrate, respectively, using a CHFS reactor which uses superheated water (at 400°C and 24.1 MPa) as a reagent and crystallizing medium. The resulting nanopowders were heat-treated at 850°C for five hours in air to give photoactive semiconductor mixtures of rutile and zinc oxide and/or zinc titanates. The as-prepared powders and their corresponding heat-treated mixed phase photocatalysts were characterized using powder X-ray synchrotron diffraction, transmission electron microscopy, BET surface area measurement, X-ray photoelectron spectroscopy and UV-Vis spectrophotometry. Because of the interest for these materials in UVA and UVB attenuating materials, the UV-Vis profiles of the nanocomposites and solid solutions were studied. Photocatalytic activity of the samples towards the decolourisation of methylene blue dye was also assessed. © 2014 the Partner Organisations.

Year2014
JournalRSC Advances
Journal citation4 (60), pp. 31799 - 31809
PublisherRoyal Society of Chemistry (RSC)
ISSN2046-2069
Digital Object Identifier (DOI)doi:10.1039/c3ra48030e
Publication dates
Print24 Jun 2014
Publication process dates
Deposited24 Apr 2017
Accepted23 Jun 2014
Accepted author manuscript
License
CC BY-NC 4.0
File Access Level
Open
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