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Construction of Bi2WO6–TiO2/starch nanocomposite films for visible-light catalytic degradation of ethylene by Wang, Haidan; Wang, Li; Ye, Shengying; Song, Xianliang is a Agricultural and Biological Sciences article available to read on EtoBox.

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Bi 2 WO 6 -TiO 2 (BT)/starch nanocomposite films were prepared by incorporating BT nanoparticles through the casting method. The BT nano-particles used were synthesized by solvothermal method. The effects of BT loadings (0, 1, 2, 3, 4, and 5 wt% dry basis) on the optical, mechanical, microstructural, spectral, and thermal properties of the nanocomposite films were investigated, and their photocatalytic activities were evaluated from the degradation of ethylene under visible light. With the increase in BT loading, the tensile strength of the film specimens increased while elongation at break and transparency decreased; the nanoparticle agglomerates increased when excess BT nano-particles were added into the films. When the loading was 4%, the film exhibited the highest photocatalytic activity, and the rate of ethylene degradation reached 12.47%. In conclusion, the BT/starch films can effectively degrade ethylene in gaseous phase, and they have the potential to be used as fruit and vegetable packaging materials.

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Author

Wang, Haidan; Wang, Li; Ye, Shengying; Song, Xianliang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0268-005X)

Published

2019

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)