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Reusable ionic liquid‐functionalized polystyrene for the highly efficient removal of sulfadiazine sodium
Author(s) -
Cheng Meng,
Song Gangfu,
Zhu Guifen,
Shi Dongyang,
Fan Jing
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47981
Subject(s) - adsorption , polystyrene , sulfadiazine , chemistry , sodium , ionic liquid , langmuir adsorption model , langmuir , nuclear chemistry , silver sulfadiazine , sulfonamide , chromatography , organic chemistry , catalysis , polymer , biochemistry , wound healing , antibiotics , immunology , biology
The extensive use of sulfonamides has caused serious ecotoxicological effects, sulfonamide antibiotics are difficult to remove when they are in their anionic form. In this work, a novel polystyrene supported ionic liquid (PS‐CH 2 ‐[TSiIm][Cl]) material was prepared for the effective removal of sulfadiazine sodium (SDS). Results showed that the adsorption efficiency maintained relatively stable and high in a wide pH (6–10) and temperature (25–70 °C) ranges. SDS adsorbed onto the PS‐CH 2 ‐[TSiIm][Cl] could be well evaluated by Langmuir model and the maximum adsorption capacity could be reached as high as 438.2 mg g −1 . Simultaneously, the PS‐CH 2 ‐[TSiIm][Cl] exhibited excellent removal performance toward trace SDS at ppb level (0.005 mg L −1 ). Common inorganic ions such as K + , Na + , Ca 2+ , and Cl − had no effect of on the removal of SDS even if their concentrations were 20 000 times higher than that of SDS. And the PS‐CH 2 ‐[TSiIm][Cl] was easy to regenerate without loss in adsorption performance. Additionally, the PS‐CH 2 ‐[TSiIm][Cl] was applied to remove the SDS from environmental water samples. The possible adsorption mechanism was also investigated. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47981.