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Efficient Detection and Removal of Polycyclic Aromatic Hydrocarbons Using Cyclodextrin‐Modified Cellulose
Author(s) -
Racicot Joan M.,
Mako Teresa L.,
Healey Anna,
Hos Beria,
Levine Mindy
Publication year - 2020
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.202000410
Subject(s) - chemistry , anthracene , pyrene , surface modification , fluorophore , aqueous solution , cyclodextrin , cellulose , phenanthrene , covalent bond , polycyclic aromatic hydrocarbon , perylene , organic chemistry , photochemistry , fluorescence , molecule , physics , quantum mechanics
Covalent functionalization of cellulose with β‐cyclodextrin by succinic acid‐promoted cross‐linking leads to a dual‐function material that efficiently promotes proximity‐induced energy transfer from polycyclic aromatic hydrocarbons (PAHs) to squaraine fluorophores with high quantum yields, and removes PAHs from aqueous solution through non‐covalent binding. This material, which possesses a high functionalization density (0.17 μg/mm 2 of cyclodextrin on cellulose), promotes energy transfer efficiencies as high as 58 % (for an anthracene donor in combination with a squaraine fluorophore acceptor), and leads to the removal of up to 91 % of a PAH (pyrene) from aqueous solution by mixing of the solution with the functionalized material. Overall, the high performance of this material in both proximity‐induced energy transfer and the removal of PAHs from water means that such a method has significant potential impact in a variety of real‐world environmental remediation scenarios.