Heterogeneous Fluorometric Sensing of pH and Metal Cations by Functionalized Zeolite

• Nishimura Go

  Division of Chemical Engineering, Osaka University, Japan

• Shiraishi Yasuhiro

  Division of Chemical Engineering, Osaka University, Japan

• Hirai Takayuki

  Division of Chemical Engineering, Osaka University, Japan

抄録

N-(9-anthrylmethyl)-1,4,7,10-tetraazacyclododecane (AC), as an homogeneous fluorescent chemo- sensor, was covalently grafted on a NaX zeolite modified with octadecyl group. This grafted zeolite (ZOAC) is highly dispersed in aqueous solution and hardly precipitates even after 10 min standing, because of the modification with the octadecyl group. Consequently, even though the ZOAC is employed for fluorescence measurement in heterogeneous system, the same high fluorescence intensity is obtained as that for AC employed in homogeneous system. The ZOAC demonstrates a good response toward pH and metal cations as also for AC. The metal cations coordinated on ZOAC are removed easily by washing with aqueous HCl solution and can be reused for further measurement. The stability of the AC group on ZOAC is significantly higher than that of AC under humid atmosphere, thus suggesting the potential utility of the ZOAC for practical sensing of pH and metal cations in aqueous solution.

収録刊行物

• アジア・太平洋化学工学会議発表論文要旨集

  アジア・太平洋化学工学会議発表論文要旨集 2004 (0), 85-85, 2004

  公益社団法人 化学工学会

キーワード

• fluorescent chemosensor
• amphiphilic zeolite
• anthracene-substituted azamacrocycle

詳細情報

• CRID: 1390282680709510016
• NII論文ID: 130005052940
• DOI: 10.11491/apcche.2004.0.85.0
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可