Adsorption of some textile dyes by hexadecyltrimethylammonium bentonite

Ceyhan O., Baybas D.

TURKISH JOURNAL OF CHEMISTRY, cilt.25, ss.193-200, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25
  • Basım Tarihi: 2001
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.193-200
  • Anahtar Kelimeler: organoclay, textile dyes, adsorption isotherms, Langmuir equation, Dubinin-Rasdushkevich (D-R) equation, SORPTION, CLAY, WATER, ADSORBENT, SMECTITE
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, hexadecyltrimethylammonium (HDTMA) bentonite was synthesized by placing alkylammonium cation onto bentonite. Adsorption of some textile dyes such as Everdirect Supra Yellow PG, Everdirect Supra Orange 26 CG, Everdirect Supra Rubine BL, Everdirect Supra Blue 4BL and Everdirect Supra Red BWS on Na-bentonite and HDTMA-bentonite was investigated. While the Na-bentonite had no affinity for the dyes, the HDTMA-bentonite showed significant adsorption from aqueous solution. The Langmuir and Dubinin-Rasdushkevich (D-R) isotherm equations were applied to the data and values of parameters of these isotherm equations were evaluated. The mean energy of adsorption, E, was also calculated from the adsorption energy constant K' values determined from the D-R isotherm equation.