Facile Synthesis of MnO2@Cellulose Composite Film
ENVIRONMENTAL ENGINEERING SCIENCE(2019)
摘要
Mesoporous materials such as manganese dioxide (MnO2) nanoflower present infinite application prospects for dye degradation. To solve the problem of difficult recovery of catalyst, a novel MnO2@cellulose composite film was fabricated through a low temperature route. This film possessed mechanical strength and could buckle flexibly. According to scanning electron microscopy, the microstructure of the composite film was a three-dimensional porous frame structure in which MnO2 particles are uniformly distributed. In addition, X-ray diffraction, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and thermogravimetric analyzer were used to investigate the structural information of the film. Finally, the MnO2@cellulose film showed better removal rate than pure cellulose film (the removal rate can reach to 76.1% after 90 min) and a high recycle stability. Most importantly, it is worth mentioning that the composite film has successfully solved the problem of difficult recovery of catalyst and laid a good foundation for the commercial application of MnO2 in the catalysis field.
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关键词
cellulose,composite film,dye degradation,MnO2 nanoflowers
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