Advanced biopolymer-based Ti/Si-terephthalate hybrid materials for sustainable and efficient adsorption of the tetracycline antibiotic

Baig M. T., KAYAN A.

International Journal of Biological Macromolecules, cilt.280, 2024 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 280
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.ijbiomac.2024.135676
  • 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, Veterinary Science Database
  • Anahtar Kelimeler: Adsorption, Cellulose, Chitosan, Organic-inorganic hybrid materials, Tetracycline antibiotic
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This study involves the synthesis of an organic-inorganic hybrid material consisting of Ti/Si-terephthalate (Ti-TPA-Si) in a 1:1:1 ratio using sol-gel method and its reaction with cellulose and chitosan (Ti-TPA-Si-C and Ti-TPA-Si-CS). Characterization techniques such as XRD, FTIR, SEM, EDS, XPS, BET, TGA, and DTA were used. The incorporation of biopolymers (cellulose and chitosan) into the Ti/Si-terephthalate structure improved the morphology and textural properties of the hybrid materials, leading to increased adsorption capacity and sustainability. Adsorption experiments reveal that Ti-TPA-Si, Ti-TPA-Si-C, and Ti-TPA-Si-CS hybrid materials exhibit a high affinity towards tetracycline, achieving remarkable adsorption efficiencies of 88.27, 89.60, and 88.98 %, respectively. Isotherm studies indicate that the adsorption process follows both Langmuir (R2 = 0.971, 0.990, and 0.994) and Dubinin-Radushkevich (R2 = 0.922, 0.965, and 0.949) isotherm models. According to the Langmuir model, the maximum adsorption capacity (qm) of Ti-TPA-Si, Ti-TPA-Si-C, and Ti-TPA-Si-CS adsorbents was found to be 24.10, 33.56, and 26.59 mg/g, respectively. Kinetic studies indicate that the adsorption process follows both pseudo-second-order (R2 = 0.998, 0.984, and 0.989) and intra-particle diffusion (R2 = 0.995, 0.994, and 0.988) models. Thermodynamic studies reveal that adsorption processes are spontaneous and endothermic in nature. Reusability studies demonstrate their potential for repeated use without significant loss in performance.