| 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 |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | Nagaoka University of Technology |
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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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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 光電析 / ランタノイド / 有害重金属 / 水溶液 / ランタノイド酸化物 / 重金属 / 汚染物質除去技術 / 溶存重金属イオン / 光触媒 |
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| 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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