Co-60-gamma radiation-induced changes in the physical and chemical properties of rapeseed straw

文献类型： 外文期刊

第一作者： Zhang, ChunYan

作者： Zhang, ChunYan;Su, XiaoJun;Tan, XingHe;Su, XiaoJun;Xiong, XingYao;Hu, QiuLong;Su, XiaoJun;Xiong, XingYao;Amartey, Samuel;Qin, Wensheng

作者机构：

关键词： Brassica napus L.;gamma-ray irradiation;Microstructure;Reactivity

期刊名称：BIOMASS & BIOENERGY （ 影响因子：5.061； 五年影响因子：4.815 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： We investigated changes in the physical and chemical properties of rapeseed straw after treatment with different doses of Co-60 gamma-irradiation (0 kGy-1200 kGy). Raman spectra, electron spin resonance (ESR), and nuclear magnetic resonance (NMR) analyses of the pretreated samples showed that the irradiation partially destroyed the intra-or intermolecular structure of rapeseed straw. Particle size distribution and specific surface area analyses suggested that irradiation decreased the particle size, narrowed the distribution range, and increased the specific surface area. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) curves showed that increasing the irradiated dose decreased the thermal stability of the treated rapeseed straw and increased the reactivity. Elemental analyses suggested that the oxygen content slightly increased, suggesting that oxygen in the air may be involved in the reaction. These results demonstrate that gamma-irradiation can induce a series of changes in the physical and chemical properties of rapeseed straw. (C) 2015 Elsevier Ltd. All rights reserved.

分类号： S216

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