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Study on photocatalytic performance and degradation kinetics of X-3B with lanthanide-modified titanium dioxide under solar and UV illumination.
J Hazard Mater. 2009 May 30; 164(2-3):762-8.JH

Abstract

The present work was focused on photocatalytic oxidation of the model molecule reactive brilliant X-3B by lanthanide-modified TiO(2) samples under artificial solar and UV irradiation. Experimental results showed that the TiO(2) samples doping with lanthanide (Ce and Gd) could greatly enhance the activity of pure TiO(2), and could extend the absorption range to visible region. The optimum doping amount was 0.2 and 0.5at.% for Ce- and Gd-doped TiO(2) particles, respectively. The degradation kinetics of X-3B on Ce-doped TiO(2), Gd-doped TiO(2), and pure TiO(2) were studied as well. The results exhibited that the degradation of X-3B on all the samples were in accordance with the first-order model. The trend of apparent reaction rate constants k(app) was as follows, Gd-doped TiO(2)>Ce-doped TiO(2)>pure TiO(2), under solar illumination. Scatchard plot analysis was used to evaluate the adsorption phenomena of as-prepared samples, and it indicated that lanthanide doping can improve the efficiency of interfacial adsorption of TiO(2) samples. The trend was the same as that of photocatalytic activity.

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Authors+Show Affiliations

Xu J
State Key Laboratory of Bioelectronics, Southeast University, Nanjing, China. xujj@seu.edu.cn
Ao Y
No affiliation info available
Fu D
No affiliation info available
Yuan C
No affiliation info available

MeSH

Azo CompoundsCatalysisKineticsLanthanoid Series ElementsNaphthalenesulfonatesOxidation-ReductionPhotochemical ProcessesSunlightTitaniumUltraviolet Rays

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18926631

Citation

Xu, Jingjing, et al. "Study On Photocatalytic Performance and Degradation Kinetics of X-3B With Lanthanide-modified Titanium Dioxide Under Solar and UV Illumination." Journal of Hazardous Materials, vol. 164, no. 2-3, 2009, pp. 762-8.
Xu J, Ao Y, Fu D, et al. Study on photocatalytic performance and degradation kinetics of X-3B with lanthanide-modified titanium dioxide under solar and UV illumination. J Hazard Mater. 2009;164(2-3):762-8.
Xu, J., Ao, Y., Fu, D., & Yuan, C. (2009). Study on photocatalytic performance and degradation kinetics of X-3B with lanthanide-modified titanium dioxide under solar and UV illumination. Journal of Hazardous Materials, 164(2-3), 762-8. https://doi.org/10.1016/j.jhazmat.2008.08.108
Xu J, et al. Study On Photocatalytic Performance and Degradation Kinetics of X-3B With Lanthanide-modified Titanium Dioxide Under Solar and UV Illumination. J Hazard Mater. 2009 May 30;164(2-3):762-8. PubMed PMID: 18926631.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study on photocatalytic performance and degradation kinetics of X-3B with lanthanide-modified titanium dioxide under solar and UV illumination. AU - Xu,Jingjing, AU - Ao,Yanhui, AU - Fu,Degang, AU - Yuan,Chunwei, Y1 - 2008/09/07/ PY - 2008/02/07/received PY - 2008/08/21/revised PY - 2008/08/21/accepted PY - 2008/10/18/pubmed PY - 2009/5/19/medline PY - 2008/10/18/entrez SP - 762 EP - 8 JF - Journal of hazardous materials JO - J Hazard Mater VL - 164 IS - 2-3 N2 - The present work was focused on photocatalytic oxidation of the model molecule reactive brilliant X-3B by lanthanide-modified TiO(2) samples under artificial solar and UV irradiation. Experimental results showed that the TiO(2) samples doping with lanthanide (Ce and Gd) could greatly enhance the activity of pure TiO(2), and could extend the absorption range to visible region. The optimum doping amount was 0.2 and 0.5at.% for Ce- and Gd-doped TiO(2) particles, respectively. The degradation kinetics of X-3B on Ce-doped TiO(2), Gd-doped TiO(2), and pure TiO(2) were studied as well. The results exhibited that the degradation of X-3B on all the samples were in accordance with the first-order model. The trend of apparent reaction rate constants k(app) was as follows, Gd-doped TiO(2)>Ce-doped TiO(2)>pure TiO(2), under solar illumination. Scatchard plot analysis was used to evaluate the adsorption phenomena of as-prepared samples, and it indicated that lanthanide doping can improve the efficiency of interfacial adsorption of TiO(2) samples. The trend was the same as that of photocatalytic activity. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/18926631/Study_on_photocatalytic_performance_and_degradation_kinetics_of_X_3B_with_lanthanide_modified_titanium_dioxide_under_solar_and_UV_illumination_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01269-7 DB - PRIME DP - Unbound Medicine ER -