Facile hydrothermal synthesis of Fe3O4@cellulose aerogel nanocomposite and its application in Fenton-like degradation of Rhodamine B. (1st June 2018)

• Record Type: Journal Article
• Authors: Jiao, Yue; Wan, Caichao; Bao, Wenhui; Gao, He; Liang, Daxin; Li, Jian
• Is Part Of: Carbohydrate polymers. Volume 189(2018)
• Page Start: 371
• Page End: 378
• Publication Date: 2018-06-01
• Subjects: Cellulose aerogels -- Fe3O4 -- Hydrothermal method -- Fenton-like degradation -- Catalysts; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2018.02.028
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: A facile hydrothermal method was used to synthesize Fe3 O4 @CA nanocomposite. Fe3 O4 @CA has a strong magnetic responsiveness providing convenient for recycle. A 100% RhB removal was achieved by using Fe3 O4 @CA as Fenton-like catalyst. Fe3 O4 @CA shows higher catalytic activity than that of individual Fe3 O4 particles. Fe3 O4 @CA presents high RhB degradation rates (97%–100%) for six successive tests. Abstract: A magnetic cellulose aerogel-supported Fe3 O4 nanoparticles composite was designed as a highly efficient and eco-friendly catalyst for Fenton-like degradation of Rhodamine B (RhB). The composite (coded as Fe3 O4 @CA) was formed by embedding well-dispersed Fe3 O4 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 Fe3 O4 and H2 O2 than that in presence of Fe3 O4 or H2 O2 only, revealing that the Fe3 O4 @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 Fe3 O4 particles. In addition, the Fe3 O4 @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 H2 O2 -driven Fenton-like treatment of organic dyestuff wastewater.