TY - JOUR
T1 - Lanthanide oxide-doped titanium dioxide
T2 - effective photocatalysts for the degradation of organic pollutants
AU - Ranjit, K. T.
AU - Cohen, H.
AU - Willner, I.
AU - Bossmann, S.
AU - Braun, A. M.
PY - 1999/11/1
Y1 - 1999/11/1
N2 - A series of lanthanide oxide-doped titanium dioxide photocatalysts Ln2O3/TiO2 (Ln3+ = Eu3+, Pr3+, Yb3+) were prepared. The photocatalysts reveal a substantially enhanced activity for the degradation of organic pollutants, as compared to undoped TiO2. The photodegradation processes of p-nitrobenzoic acid, (1), p-chlorophenoxyacetic acid, (2), aniline, (3), salicylic acid, (4), and trans-cinnamic acid, (5), with the different photocatalysts was examined. The photodegradation of (1)-(5) is significantly faster with Ln2O3/TiO2 photocatalysts and leads to complete mineralization of the organic compounds. The high activity of the Ln2O3/TiO2 photocatalysts is attributed to the enhanced association of the functionalized organic pollutants to lanthanide-ion surface sites.
AB - A series of lanthanide oxide-doped titanium dioxide photocatalysts Ln2O3/TiO2 (Ln3+ = Eu3+, Pr3+, Yb3+) were prepared. The photocatalysts reveal a substantially enhanced activity for the degradation of organic pollutants, as compared to undoped TiO2. The photodegradation processes of p-nitrobenzoic acid, (1), p-chlorophenoxyacetic acid, (2), aniline, (3), salicylic acid, (4), and trans-cinnamic acid, (5), with the different photocatalysts was examined. The photodegradation of (1)-(5) is significantly faster with Ln2O3/TiO2 photocatalysts and leads to complete mineralization of the organic compounds. The high activity of the Ln2O3/TiO2 photocatalysts is attributed to the enhanced association of the functionalized organic pollutants to lanthanide-ion surface sites.
UR - http://www.scopus.com/inward/record.url?scp=0033224778&partnerID=8YFLogxK
U2 - 10.1023/A:1004780401030
DO - 10.1023/A:1004780401030
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AN - SCOPUS:0033224778
SN - 0022-2461
VL - 34
SP - 5273
EP - 5280
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 21
ER -