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Fourier-transform infrared (FT-IR) spectra of the cellulose/HA nanocomposites prepared by microwave-assisted hydrothermal method at 150 °C for 10 min (a, c–e) and 60 min (b) using different phosphorus sources: (a, b) NaH2PO4·2H2O; (c) ATP; (d) CP; (e) FBP.
