ホリ ヒサオ   Hori Hisao
  堀 久男
   所属   神奈川大学  理学部 化学科
   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