Disperse orange 30 dye removal with H2SO4-functionalized activated carbon: adsorption isotherms and kinetics

Topaç K., Gürakin H., ŞAKAR DAŞDAN D.

Bulgarian Chemical Communications, cilt.57, sa.3, ss.193-197, 2025 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 3
  • Basım Tarihi: 2025
  • Doi Numarası: 10.34049/bcc.57.3.kt-hg-ds
  • Dergi Adı: Bulgarian Chemical Communications
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.193-197
  • Anahtar Kelimeler: acid-activated carbon, adsorption isotherms, Disperse orange 30 dye, dye removal, kinetic and thermodynamic parameters
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Disperse orange 30 dye (DO-30) is a mono azo dye used for coloring of polyesters, nylon, natural fibres, and acetate in the textile sector. In the physicochemical treatment process known as adsorption, dissolved molecules in contaminated water form a chemical and physical bond with the surface of the adsorbent. Various synthetic and natural materials worked well as adsorbents to remove color from soiled textile effluents. In the present study, H2SO4-functionalized activated carbon was synthesized and used for the adsorption of DO-30 dye from synthetic waste water. The effects of different reaction parameters such as adsorbent dosage, initial DO concentration, contact time and temperature on the adsorption of DO-30 onto activated carbon and H2SO4-functionalized activated carbon were investigated. To determine the best adsorption equilibrium and adsorption kinetic data of DO-30 adsorption on activated carbon and H2SO4-functionalized activated carbon different models for equilibrium and kinetics were applied.