2014 Fiscal Year Final Research Report
Heavy metal ion removal from water by photocatalysis of lanthanide metal oxides
Project/Area Number |
25550052
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Environmental engineering and reduction of environmental burden
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Research Institution | Nagaoka University of Technology |
Principal Investigator |
SATO Kazunori 長岡技術科学大学, 工学(系)研究科(研究院), 教授 (20143828)
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Co-Investigator(Renkei-kenkyūsha) |
TEOH Wahtzu 長岡技術科学大学, 工学部, 助教 (10452088)
JIRACHAYA Ayawanna 長岡技術科学大学, 博士研究員
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Project Period (FY) |
2013-04-01 – 2015-03-31
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Keywords | 光電析 / ランタノイド / 有害重金属 / 水溶液 |
Outline of Final Research Achievements |
The photoelectrodeposition effect of lanthanide oxides (Ln2O3-CeO2(Ln = La, Sm, Gd)) on the removal of heavy metal ions dissolved in water has been investigated. These materials showed a high photoelectrodeposition ability for lead, cadmium, and copper ions under the photo irradiation. The present result indicates that the coexistence of CeO2 particles and Ln2O3 particles(or the CeO2 and (CeO2)1-X(Ln2O3)X phases)contributes to an efficient separation of holes and electrons generated by the photo irradiation. A possible mechanism for the efficient removal of hazardous heavy metal ions dissolved in an aqueous environment has been proposed.
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Free Research Field |
材料工学
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