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| Removal of Diethylstilbestrol in Environmental Water by Dispersive Solid-phase Extraction Using Graphene/Fe3O4 Magnetic Nanocomposite as Adsorbent |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:graphene/Fe3O4 magnetic nanocomposite synthesis diethylstilbestrol adsorption elution |
| Author | Institution |
| 危晶，何奕轩，王邃 |
宁波市新型功能材料及制备科学国家重点实验室培育基地，宁波大学材料科学与化学工程学院 |
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| Abstract: |
| A graphene/Fe3O4 magnetic nanocomposite(G/Fe3O4) was synthesized and used as an adsorbent for the dispersive solid phase extraction of diethylstilbestrol(DES) in environmental water.The chemical structure of graphene/Fe3O4 magnetic nanocomposite was investigated by FT-IR and X-ray diffraction spectra.The effects of pH value，adsorption time and salt on the adsorption of DES were examined.Results showed that the best pH value is 7.0，the balance adsorption time is 20 min，and the obtained highest adsorption efficiency is 88.2%.Absolute ethyl alcohol was effective in eluting DES on the G/Fe3O4 and could realize the recycling of adsorbent.The adsorption behavior followed Langmuir adsorption isotherm with a maximum adsorption capacity of 79.6 mg/g and a Langmuir adsorption equilibrium constant of 5.39 mL/μg. |
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