The effect of heavy metals on the anthracene-Me-beta-cyclodextrin host-guest inclusion complexes

Ay U., Dogruyol Z., ARSU N.

SUPRAMOLECULAR CHEMISTRY, cilt.26, sa.1, ss.66-70, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 1
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/10610278.2013.822971
  • Dergi Adı: SUPRAMOLECULAR CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.66-70
  • Anahtar Kelimeler: inclusion complex, heavy metal ions, fluorescence, quenching, methylated-beta-cyclodextrin, POLYCYCLIC AROMATIC-HYDROCARBONS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Anthracene was used to form an inclusion complex with methylated--cyclodextrin (Me-beta-CD) in water. In aqueous Me--CD solution, typical fluorescence emission of anthracene was observed. Benesi-Hildebrand's method was used to obtain the stoichiometry of the anthracene-Me--CD complex. The Stern-Volmer quenching constants, K-sv, and fluorescence quantum yields were calculated according to changes in the fluorescence emission intensity of anthracene-Me-beta-CD inclusion complexes by adding various amounts of Pb2+ and Cd2+ salts in water. The K-sv values and fluorescence quantum yields indicate that Pb2+ salts quench the anthracene-Me-beta-CD inclusion complexes more efficiently than Cd2+ salts.