Preparation of CeO2 nanofibers derived from Ce-BTC metal-organic frameworks and its application on pesticide adsorption

Elhussein E. A. A., Sahin S., BAYAZİT Ş. S.

JOURNAL OF MOLECULAR LIQUIDS, cilt.255, ss.10-17, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 255
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1016/j.molliq.2018.01.165
  • Dergi Adı: JOURNAL OF MOLECULAR LIQUIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.10-17
  • İstanbul Üniversitesi Adresli: Evet

Özet

In this study, CeO2 nanofibers derived from Ce(1,3,5-BTC)(H2O)(6) (Ce-BTC) metal organic frameworks were prepared, and then the affinity of CeO2 towards 2,4-dichlorophenoxyacetic acid (2,4-D) was investigated. After the Ce-BTC nanoparticles were synthesized by hydrothermal method, the Ce-BTC was calcinated, and CeO2 nanofibers were obtained. The Ce-BTC and CeO2 were characterized by SEM, XRD, MR and AFM methods, respectively. The adsorption studies of 2,4-D from water with CeO2 were carried out as batch type. The Langmuir, Freundlich and Sips isotherms were applied to the experimental data. And pseudo second order, intra-particle diffusion and Bangham kinetic models were used for determination of the kinetic mechanism of the adsorption. The maximum adsorption capacity for 2,4-D was found to be 86.16, 95.78 and 84.29 mg/g for each temperature (298, 308 and 318 K), respectively. (C) 2018 Elsevier B.V. All rights reserved.