Abstract
A series of cellulose films with rough surface were prepared by dissolution and regeneration in the ionic liquid, 1-allyl-3-methylimidazolium chloride (AmimCl). The cellulose films possessed a rough surface with the maximum height difference (Sz) of 128–217 μm, a macroporous structure with a high porosity of 84.7%-90.5%, and a negative potential between -40.00 and -54.15 mV. Furthermore, the cellulose films exhibited excellent microalgae adhesion properties. After 18 days of attached Chlorella sp. cultivation experiments, the average productivities of C-A-120 films (C-A–X, X means the mesh number of the substrate) reached 20.80 g m−2 d−1), which is 2.69 times than that of the cellulose film with a smooth surface. The result indicates that the cellulose films with a rough surface and high water adsorption ratio have a huge potential in serving as the substrate of the attached microalgae cultivation to promote microalgae cells growth and biofilm formation.
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Acknowledgements
This work was supported by a grant from High Level Innovation Team Program of Ganzhou, the Research Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences (E055A001), the Natural Science Foundation of China (21706260), and the National Key R&D Program of China (2019YFD0902000).
Funding
Natural Science Foundation of Tianjin Municipal Science and Technology Commission, 21706260, Wei Cong.
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Chen, C., Wen, S., Wang, Z. et al. Enhancement of biofilm formation and microalgae growth by preparing cellulose film with rough surface. J Polym Res 29, 36 (2022). https://doi.org/10.1007/s10965-022-02901-1
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DOI: https://doi.org/10.1007/s10965-022-02901-1