Effect of Gamma Irradiation on Microcrystalline Structure of <i>Phragmites</i> Cellulose


  • Ke-qin Wang
  • Xing-yao Xiong
  • Jing-ping Chen
  • Liang Chen
  • Yun Liu


<i>Phragmites communis</i> trim (PCT), microcrystalline cellulose, <sup>60</sup>Co-γ irradiation, SEM, XRD, FT-IR


Effect of 60Co-γ irradiation treatment on cellulose structure originating from Phragmites communis trim (PCT) was investigated on the basis of irradiation doses of 0 to 2000 kGy at a dose rate of 2 kGy h-1. Scanning electron micrograph images showed that surface morphologies of PCT cellulose could become fragmented after being treated with 60Co-γ irradiation. Based on X-ray diffraction profiles, crystallinity and amorphous region of microcrystalline cellulose treated by irradiation were obviously changed. Fourier transform IR spectroscopy data indicated that a new characteristic peak corresponding to carbonyl (1734 cm -1) appeared after PCT cellulose was treated with 60Co-γ irradiation, which suggested that PCT cellulose was degraded after irradiation treatment.


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