研究者情報 | 神奈川大学

ホリ　ヒサオ Hori Hisao 堀　久男所属神奈川大学理学部理学科神奈川大学大学院理学研究科理学専攻（化学領域）職種教授
言語種別	英語
発行・発表の年月	2015/12
形態種別	学術雑誌
査読	査読あり
標題	Efficient photochemical recovery of rhenium from aqueous solutions
執筆形態	共著
掲載誌名	Separation and Purification Technology
掲載区分	国外
出版社・発行元	Elsevier
巻・号・頁	156,pp.242-248
著者・共著者	Hisao Hori, Yuta Yoshimura, Takafumi Otsu, Kotomi Kume, Yuki Mitsumori, Shuzo Kutsuna, Kazuhide Koike
概要	Recovery of rhenium from aqueous solutions by photoinduced-electron transfer from an electron donor to excited-state ReO4− is reported for the first time. Specifically, irradiation of aqueous ReO4− in the presence of 2-propanol as the electron donor efficiently decreased the ReO4− concentration in the solution and resulted in formation of a precipitate consisting of amorphous ReO2 and ReO3 and formation of acetone by oxidation of 2-propanol. After 19 h of irradiation, ReO4− had completely disappeared, and 89.1% of the initial rhenium content was recovered in the collected precipitate. Although an induction period prior to the decrease in the ReO4− concentration was observed, the induction period could be eliminated by introduction of acetone to the reaction system, system, which afforded 94.7% recovery of rhenium within 6 h of irradiation.
DOI	10.1016/j.seppur.2015.10.007