TY - GEN
T1 - TiO2 anatase nanotubes for the purification of uranium, arsenic and lead containing water
T2 - 2009 MRS Spring Meeting
AU - Bonato, Marco
AU - Ragnarsdóttir, Kristín Vala
AU - Allen, Geoffrey C.
PY - 2009
Y1 - 2009
N2 - TiO2 anatase nanotubes synthesised via anodic oxidation were used as adsorbent for the uptake of U and Pb from aqueous solution and the photoremoval of As(III). An X-ray photoelectron spectroscopy study of the sorbent medium surface revealed a high adsorption of U and Pb at pH 8. The adsorption of the uranyl ion was enhanced in an anoxy (N2) atmosphere, because this prevents the formation of very stable carbonyl complexes. As(III) was adsorbed on TiO2 but in the presence of O 2 and UV light was oxidized to As(V). XPS analysis revealed that in the pH range 3-9 As(V) was always the major species detected at the surface of the titania photocatalyst.
AB - TiO2 anatase nanotubes synthesised via anodic oxidation were used as adsorbent for the uptake of U and Pb from aqueous solution and the photoremoval of As(III). An X-ray photoelectron spectroscopy study of the sorbent medium surface revealed a high adsorption of U and Pb at pH 8. The adsorption of the uranyl ion was enhanced in an anoxy (N2) atmosphere, because this prevents the formation of very stable carbonyl complexes. As(III) was adsorbed on TiO2 but in the presence of O 2 and UV light was oxidized to As(V). XPS analysis revealed that in the pH range 3-9 As(V) was always the major species detected at the surface of the titania photocatalyst.
UR - https://www.scopus.com/pages/publications/77950968764
M3 - Conference contribution
SN - 9781605111407
T3 - Materials Research Society Symposium Proceedings
SP - 131
EP - 136
BT - Compound Semiconductors for Energy Applications and Environmental Sustainability
Y2 - 13 April 2009 through 17 April 2009
ER -