| Co-Investigator(Kenkyū-buntansha) |
JOKO Isao Kurita Water Industries Ltd. Corporate Research & Development Center Group Leader, 開発本部, 研究主幹
YOSHIDA Hisao Nagoya University Graduate School of Engineering Assistant Professor, 工学研究科, 助手 (80273267)
SATSUMA Atsushi Nagoya University Graduate School of Engineering Associate Professor, 工学研究科, 助教授 (00215758)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2001: ¥3,200,000 (Direct Cost: ¥3,200,000)
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| Research Abstract |
The chemicals called endocrine disrupters have been spread over the environment to influence the generative function of some species of living thing on the earth, and, therefore, the quick actions for this matter are required. The aim of this research is to find out the fundamental aspects on the adsorption-photodegradation system for diluted endocrine disrupters in water, and then to develop the system. In the first year, after establishing a simple estimation method for the activity of the system, we studied two systems for the degradation of dibutyl phthalate (DBF). One system was titania-pillared clay catalysts, and another was silica-supported titania catalysts. The results on the characterization of the catalysts and the activity for adsorption-photo-degradation clarified some aspects, e.g., (I) the adsorption amount influences on the photodegradation rate, (ii) the size and the crystallinity of the titania particle influence these activities, (iii) the hydrothermal treatment enhances the crystallinity of titania. (iv) our systems work under sunshine. In addition to them, in the second year, we investigated the influence of hydrophilicity/hydrophobicity of endocrine disrupters on the performance of the systems, and found that the enhanced crystallinity of titania by hydrothermal treatment were effective for each endocrine disruptors we examined.
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