School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China.
Bioresour Technol. 2011 Sep;102(17):7953-8. doi: 10.1016/j.biortech.2011.05.067. Epub 2011 May 30.
This study has focused on the pretreatment of cassava stillage residue (CSR) by mechanical activation (MA) using a self-designed stirring ball mill. The changes in surface morphology, functional groups and crystalline structure of pretreated CSR were examined by using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) under reasonable conditions. The results showed that MA could significantly damage the crystal structure of CSR, resulting in the variation of surface morphology, the increase of amorphous region ratio and hydrogen bond energy, and the decrease in crystallinity and crystalline size. But no new functional groups generated during milling, and the crystal type of cellulose in CSR still belonged to cellulose I after MA.
本研究采用自行设计的搅拌式球磨机对木薯渣进行机械活化预处理（MA）。在合理的条件下，通过扫描电子显微镜（SEM）、傅里叶变换红外光谱（FTIR）和 X 射线衍射（XRD）研究了预处理后 CSR 的表面形貌、官能团和晶体结构的变化。结果表明，MA 可以显著破坏 CSR 的晶体结构，导致表面形貌的变化、无定形区域比例和氢键能的增加、结晶度和结晶尺寸的降低。但在球磨过程中没有生成新的官能团，且 MA 后 CSR 中纤维素的晶体类型仍属于纤维素 I。
