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Facile hydrothermal synthesis of Fe3O4@cellulose aerogel nanocomposite and its application in Fenton-like degradation of Rhodamine B
•A facile hydrothermal method was used to synthesize Fe3O4@CA nanocomposite.•Fe3O4@CA has a strong magnetic responsiveness providing convenient for recycle.•A 100% RhB removal was achieved by using Fe3O4@CA as Fenton-like catalyst.•Fe3O4@CA shows higher catalytic activity than that of individual Fe3...
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Published in: | Carbohydrate polymers 2018-06, Vol.189, p.371-378 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | •A facile hydrothermal method was used to synthesize Fe3O4@CA nanocomposite.•Fe3O4@CA has a strong magnetic responsiveness providing convenient for recycle.•A 100% RhB removal was achieved by using Fe3O4@CA as Fenton-like catalyst.•Fe3O4@CA shows higher catalytic activity than that of individual Fe3O4 particles.•Fe3O4@CA presents high RhB degradation rates (97%–100%) for six successive tests.
A magnetic cellulose aerogel-supported Fe3O4 nanoparticles composite was designed as a highly efficient and eco-friendly catalyst for Fenton-like degradation of Rhodamine B (RhB). The composite (coded as Fe3O4@CA) was formed by embedding well-dispersed Fe3O4 nanoparticles into the 3D structure of cellulose aerogels by virtue of a facile and cheap hydrothermal method. Comparative studies indicate that the RhB decolorization ratio is much higher in co-presence of Fe3O4 and H2O2 than that in presence of Fe3O4 or H2O2 only, revealing that the Fe3O4@CA-catalyzed Fenton-like reaction governed the RhB decolorization process. It was also found that almost 100% RhB removal was achieved in the Fenton-like system. Moreover, the composite exhibited higher catalytic activity than that of the individual Fe3O4 particles. In addition, the Fe3O4@CA catalyst retained ∼97% of its ability to degrade RhB after the six successive degradation experiments, suggesting its excellent reusability. All these merits indicate that the green and low-cost catalyst with strong magnetic responsiveness possesses good potential for H2O2-driven Fenton-like treatment of organic dyestuff wastewater. |
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ISSN: | 0144-8617 1879-1344 |
DOI: | 10.1016/j.carbpol.2018.02.028 |