Comparative study on ultrasonic assisted adsorption of Basic Blue 3, Basic Yellow 28 and Acid Red 336 dyes onto hydromagnesite stromatolite: kinetic, isotherm and error analysis

KARAKUŞ S., Tasaltin N., Tasaltin C., Kilislioglu A.

SURFACES AND INTERFACES, vol.20, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20
  • Publication Date: 2020
  • Doi Number: 10.1016/j.surfin.2020.100528
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Istanbul University Affiliated: Yes


In this study, we focused on the performance of an adsorbent such as a hydromagnesite stromatolite (HS) for rapid and efficient ultrasonic-assisted adsorption of Basic Blue 3, Basic Yellow 28 and Acid Red 336 dyes from aqueous solution. The initial dye concentration (0.05-0.10 g/L), adsorbent dose (0.1-0.5 g), pH (2-10), and temperature (20-40 degrees C) were evaluated. HS was characterized by means of BET, FTIR, SEM, and XRD. The surface area was observed to be 20.12 m(2)/g for HS. Different kinetic models, isotherm models (Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Redlich-Peterson, Frumkin, Harkins - Jura, Halsey and Henderson) and error analysis were calculated to explain the adsorption mechanism of dye on the surface of HS. The kinetic parameters of adsorption of all dyes were well-defined by the pseudo-second-order with R-2 of 0.984-1.000 while the thermodynamic parameters demonstrated endothermic and feasible nature of the adsorption with Delta H-o of 24.6-45.1 kJ/mol and Delta S-o of 109.4-322.5 J/mol K. The uptake (%) values of HS for BB3, BY28 and AR336 were %31, %50, and %91, respectively. An eco-friendly and low-cost HS for removal of dyes from the aqueous solution within 100 s - 1200 s; HS was proposed in wastewater treatment.