Titania Surface Modification with Cerium Species for Wastewater Treatment

The electrochemical deposition by a drastic potentiostatic procedure (by applying −2.2 V for 20 min) in cerium (IV) acid solution was used to deposit cerium-containing species on titan surface prepared by an anodic oxidation method at 120 V. Their morphologies and structures have been investigated b...

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Bibliographic Details
Published inCatalysis letters Vol. 143; no. 7; pp. 723 - 731
Main Authors Atyaoui, A., Sutter, E. M. M., Bousselmi, L.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.07.2013
Springer
Springer Nature B.V
Springer Verlag
Subjects
Anodizing
Catalysis
Catalytic activity
Cerium
Chemical Sciences
Chemistry
Chemistry and Materials Science
Deposition
Doping
Electrochemistry
Electrodeposition
Exact sciences and technology
General and physical chemistry
Industrial Chemistry/Chemical Engineering
Morphology
Organometallic Chemistry
Other
Oxidation
Photocatalysis
Photochemistry
Physical Chemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Purification
Scanning electron microscopy
Sewage
Sodium hydroxide
Study of interfaces
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Wastewater treatment
X-ray diffraction
Cerium
Electrodeposition
Photocurrent
Titanium oxide
Photocatalysis
Heterogeneous catalysis
Modification
Binary compound
Transition element compounds
Waste water purification
Titanium oxide Photocatalysis Cerium Electrodeposition Photocurrent
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Summary:The electrochemical deposition by a drastic potentiostatic procedure (by applying −2.2 V for 20 min) in cerium (IV) acid solution was used to deposit cerium-containing species on titan surface prepared by an anodic oxidation method at 120 V. Their morphologies and structures have been investigated by scanning electron microscopy and X-ray diffraction. The photoelectrochemical characteristics of the electrodes were investigated in methanol and 0.1 M NaOH. The result shows that doping titania with an appropriate amount of Ce can effectively improve its photocatalytic activity, and the optimum doping concentration is found to be relating to the first deposition (0.6 at.% of cerium (IV)) in our experiments. Graphical Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-013-1011-9