one kind of representative purified cellulose. In addition, compared with the FTIR spectrum ofMCC, other four FTIR spectra show an obvious new broad peakat 1510–1720 cm−1, corresponding to an overlapped peak of thecharacteristic peaks of lignin (1510 cm−1, aromatic ring stretch)and hemicellulose (1740 cm−1, C O stretch), and a new tiny peakat 1248 cm−1, a characteristic peak of lignin