Encapsulation of starch hydrogel and doping nanomagnetite onto metal-organic frameworks for efficient removal of fluvastatin antibiotic from water

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作者：
Mohamed, Asmaa K. [1 ]
Mahmoud, Mohamed E. [1 ]
机构：
[1] Faculty of Sciences, Chemistry Department, Alexandria University, Moharem Bey, Alexandria, Egypt
来源：
Carbohydrate Polymers | 2020年 / 245卷
关键词：
Growing interests and efforts have been recently focused on design and assembly of novel hydrogel nanosorbents for removal of drugs from wastewater. Therefore; this work is aimed to immobilize and encapsulate starch hydrogel matrix onto metal organic frameworks (MOFs) and dope with nanomagnetite. The magnetic MOFs-Starch hydrogel (NFe3O4@Zn(GA)/Starch-Hydrogel) was synthesized via microwave irradiation process and characterized with high surface area (528.39 m2/g); mesoporous with pore size 2.90 nm and highly crystalline structure. The maximum swelling ratio (1000.0 %) was optimized at pH 10; 180 min and 25 °C. The validity of NFe3O4@Zn(GA)/Starch-Hydrogel for adsorptive removal of Fluvastatin statin drug provided maximum equilibrium adsorption capacity 782.05 mg g−1. The Langmuir isotherm and pseudo-second kinetics models were correlated well with the computed correlation coefficient values 0.9991 and 0.9997; respectively. The validity of NFe3O4@Zn(GA)/Starch-Hydrogel for removal of FLV statin drug from real water matrices was confirmed in the range 96.15–99.99 %. © 2020 Elsevier Ltd;
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