Efficient lead ion removal from water by a novel chitosan gel-based sorbent modified with glutamic acid ionic liquid
作者： Huixue Ren , Bingjin Li , Markus Neckenig , Daoji Wu , Yaqi Li
DOI: 10.1016/J.CARBPOL.2018.12.043
关键词:
摘要: Three novel and highly effective AAIL-modified Chitosan (CS) adsorbents are presented. These three new CS-gels were prepared by an innovative synthetic method that uses amino acid ionic liquids (AA-ILs) to cross-link CS with, separately, glutamic acid, aspartic alanine give Glu-AA-IL-CS (1), Asp-AA-IL-CS (2) Ala-AA-IL-CS (3) respectively. The effectively incarcerating host-structures (1) - characterized a whole range of techniques including FT-IR, SEM, EDS XRD. differences amongst with regard their rate efficiency removal Pb2+ from aqueous solutions explained in terms the different electronic, structural steric features acids. variant is clearly shown be best-performing adsorbent experimental tests data combination infrared spectroscopy. behaviour follows pseudo-second-order kinetics,and accord best Freundlich adsorption isotherm.
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