Adsorptive removal of crystal violet from wastewater using sodium alginate-gelatin-montmorillonite ternary composite microbeads

Akin K., UĞRAŞKAN V., IŞIK B., ÇAKAR F.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, cilt.223, ss.543-554, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 223
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.ijbiomac.2022.11.002
  • Dergi Adı: INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, EMBASE, Food Science & Technology Abstracts, INSPEC, MEDLINE, Veterinary Science Database
  • Sayfa Sayıları: ss.543-554
  • Anahtar Kelimeler: Adsorption, Crystal violet, Sodium alginate, Gelatin, Montmorillonite, Composite microbeads, METHYLENE-BLUE, FACILE FABRICATION, AQUEOUS-SOLUTION, DYE REMOVAL, PB II, POLYSACCHARIDE, EQUILIBRIUM, HYDROGELS, CHITOSAN, SORPTION
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

In this study, the performance of the montmorillonite-filled sodium alginate/gelatin (SA-GEL-MMT) ternary biocomposite microbeads on the adsorptive removal of crystal violet (CV) dye was investigated. Firstly, the composites containing different weight ratios of MMT such as 10 %, 15 %, and 20 % were prepared. The composite beads were cross-linked using a calcium chloride (3%wt/v) solution. To determine the optimum sorption conditions the studies were performed at different parameters namely temperature, pH, contact time, sorbent dose, and dye concentration. From the sorption studies, the maximum capacity of the microbeads was found as 1000.0 mg/g whereas the maximum removal of the dye was 92.1 % at pH = 7 and a temperature of 25 degrees C. Additionally, the kinetic studies showed that the sorption of the dye followed the pseudo-second-order kinetics. Moreover, the adsorptive removal of the dye occurs spontaneously. This study suggests that the use of SA-GEL-MMT can be highly effective and reusable for the treatment of wastewater.