β-cyclodextrin-containing polymer based on renewable cellulose resources for effective removal of ionic and non-ionic toxic organic pollutants from water

JOURNAL OF HAZARDOUS MATERIALS

卷:418

Article

Hemine, Koleta¹  Lukasik, Natalia¹  Gazda, Maria²  Nowak, Izabela³ 

[1] Gdansk Univ Technol, Fac Chem, Dept Chem & Technol Funct Mat, 11-12 Narutowicza St, PL-80233 Gdansk, Poland

[2] Gdansk Univ Technol, Fac Appl Phys & Math, Inst Nanotechnol & Mat Sci, 11-12 Narutowicza St, PL-80233 Gdansk, Poland

[3] Adam Mickiewicz Univ, Fac Chem, Dept Appl Chem, 8 Uniwersytetu Pozna Skiego St, PL-61614 Poznan, Poland

关键词: Cyclodextrin polymers;    Adsorption;    Toxic organic pollutants;    Water treatment;    Endocrine disrupting compound;   

DOI  :  10.1016/j.jhazmat.2021.126286

来源: Elsevier

【 摘 要 】

A novel, bio-derived cyclodextrin-based trifunctional adsorbent has been successfully synthesized for efficient, rapid and simultaneous removal of a broad-spectrum of toxic ionic (anionic and cationic dyes) and non-ionic organic pollutants from water. The composition, morphology and the presence of functional groups in the obtained sorption material were characterized by elemental analysis, XRD, SEM, and FTIR spectroscopy. The adsorption results were represented by cationic dye (crystal violet, CV) and endocrine disrupting compound (bisphenol A, BPA) as an adsorbate. The sorption processes of the model pollutants were studied with both kinetic and equilibrium models. The results showed that the sorption was rapid (less than 1 min) and the time evolution could be fitted using a pseudo-second order model. According to Langmuir isotherm model, the maximum adsorption capacities were found at 113.64 and 43.10 mg g(-1) for BPA and CV, respectively. The adsorption ability of beta-CDPs was kept nearly on the same level after five regeneration cycles. Furthermore, almost complete removal of the pollutants was observed during the treatment of real effluents samples thus the bio-derived, cheap and reusable BAN-EPI-CDP has a promising potential for practical applications.

【 授权许可】

Free