Pentynyl Ether of β-Cyclodextrin Polymer and Silica Micro-Particles: A New Hybrid Material for Adsorption of Phenanthrene from Water

Abstract

Abstract:A new hybrid material for the removal of polycyclic aromatic hydrocarbons (PAH) from water was prepared by the polymerization of pentynyl beta-cyclodextrin (PyβCD) and silica micro-particles (SMP). Phenanthrene, being one of the important members of the PAH family and a potential risk for environmental pollution, was selected for this study. Results show that phenanthrene removal efficiency of the SMP was improved significantly after hybridization with PyβCD-polymer. Approximately 50% of the phenanthrene was removed in the first 60 min and more than 95% was removed in less than 7 h when 25 mL of the 2 ppm aqueous phenanthrene solution was incubated with the 100 mg of SMP-PyβCD-polymer material. Infrared spectroscopy and thermal gravimetric analysis show that the enhanced efficiency of the SMP-PyβCD-polymer compared to the unmodified SMP was due to the formation of the inclusion complexation of phenanthrene with the PyβCD. These results indicate that SMP-PyβCD polymers have a potential to be applied as molecular filters in water purification systems and also for waste water treatment.

Advances in water treatment technologies for removal of polycyclic aromatic hydrocarbons: Existing concepts, emerging trends, and future prospects

“…The adsorption capacities were in the range of 0.3–1.65 mg/g (Topuz & Uyar, 2017). Pentynyl β‐cyclodextrin as an organic moiety for mesoporous silica was used for remediation of phenanthrene and was reported to have an efficiency above 95% (Choi et al, 2017). Several organic reagents prior to β‐cyclodextrin have previously been reported, such as macrocyclic tetraazacalix[2]arene[2]triazine which recorded 94%–102% removal efficiencies for five PAHs in water samples (Zhao, Yang, He, & Zhang, 2016).…”

“…β‐cyclodextrin based PMO for PAH decontamination. (Adapted with slight modification from Choi et al, 2017). …”

Removal of Amphiphilic Polymer from Tertiary Oil Recovery Wastewater Using Insoluble Cyclodextrin Polymer

“…Among many adsorbents, cyclodextrin polymers have attracted researchers' interest because of their cheap, easy to prepare and green characteristics. In recent years, water-insoluble β-cyclodextrin (β-CD) polymers are widely employed in organic's removal and utilization, because the insoluble polymers as the host can encapsulate specific sizes of guest organic matter [1,[17][18][19][20][21] . In this paper, tetrafluoro-phenylene dinitrile and β-Cyclodextrin is used as raw material for crosslinking polymerization β-Cyclodextrins containing the original cavity structure and can form host and guest inclusion complexes with many organic compounds.…”

Molecular Assembly between Weak Crosslinking Cyclodextrin Polymer and trans-Cinnamaldehyde for Corrosion Inhibition towards Mild Steel in 3.5% NaCl Solution: Experimental and Theoretical Studies

“…Cyclodextrins (CDs) comprise a family of macrocyclic oligosaccharides manufactured from starch, in which several glucose units are connected by α-1,4-glycosidic bonds in a cyclic manner [1,2]. The architecture of CDs is similar to a truncated cone with a hydrophobic cavity and hydrophilic periphery, which has many attractive functions such as hydrolysis, catalysis, molecular recognition and polymerization [3].…”