1. Preparation of a Fe3O4@C magnetic materials with high adsorption capacity of methylene blue.
- Author
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Shen, Yuansheng, Guan, Chen, Huang, Yi, Zhang, Peicong, Lai, Xuefei, Du, Haiying, Xu, Xiangjun, Li, Junfeng, Zhang, Wentao, Qiu, Kehui, Ju, Li, Luo, Xiaoling, and Yang, Kangkang
- Subjects
MAGNETIC materials ,ADSORPTION capacity ,FERRIC chloride ,MAGNETIC properties ,IRON chlorides ,METHYLENE blue ,BAGASSE ,SORBENTS - Abstract
With sugarcane bagasse as the carrier and iron chloride hexahydrate (FeCl
3 ·6H2 O) as the iron source, Fe3 O4 @C materials were prepared in this study. Then the adsorption properties of the prepared adsorbents were characterized by XRD, SEM and VSM analysis. The effects of adsorption time, initial pH value and initial methylene blue concentration on methylene blue adsorption performance were studied and the adsorption mechanism was discussed. The Fe3 O4 @C materials synergistically exerted the good adsorption capacity and magnetic properties. The adsorption process of methylene blue on Fe3 O4 @C adsorbent was in accordance with Freundlich isothermal equation and quasi-second-order kinetic model. The saturated adsorption capacity in the experiment of Fe3 O4 @C material was 270.51 mg/g. The adsorption capacity was high in both acidic and alkaline environments, especially the alkaline environment. [ABSTRACT FROM AUTHOR]- Published
- 2020
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