Investigation of free radicals and carbon structures in chars generated from pyrolysis of antibiotic fermentation residue
文献类型：期刊论文
| 作者 | Hong, Chen; Wang, Zhiqiang; Xing, Yi; Li, Yifei; Yang, Qiang; Jia, Mengmeng; Feng, Lihui |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:112页码:111226-111232 |
| 英文摘要 | The effect of pyrolysis on the chemical characteristics of Antibiotic Fermentation Residue (AFR) was studied in this paper. Electron Spin Resonance (ESR) spectrometry, X-ray photoelectron spectroscopy (XPS) and solid state C-13 nuclear magnetic resonance (C-13 NMR) spectroscopy were applied to investigate the variation of free radicals and carbon structures. Results indicated that the free radical concentration (N-g) of AFR/chars changed dramatically during the pyrolysis process, first increasing and then decreasing. N-g reached 1.24 x 10(19) spins per g in a N-2 atmosphere and 1.11 x 10(19) spins per g in a CO2 atmosphere at 320 degrees C. The g-values monotonically decreased, demonstrating that the chemical structures of free radicals changed during pyrolysis. Bond cleavage in methoxyl groups, aliphatic C-O bonds, aliphatic C-C bonds and C=O groups was enhanced with increasing pyrolysis temperature. These carbon structures converted to aromatic C-O bonds and aromatic C-C bonds through polymerization and condensation reactions. Compared with the CO2 atmosphere, the N-2 atmosphere was more conducive to the production of free radicals and aromatization of carbon structures in chars during pyrolysis process. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35881]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Hong, Chen,Wang, Zhiqiang,Xing, Yi,et al. Investigation of free radicals and carbon structures in chars generated from pyrolysis of antibiotic fermentation residue[J]. RSC ADVANCES,2016,6(112):111226-111232. |
| APA | Hong, Chen.,Wang, Zhiqiang.,Xing, Yi.,Li, Yifei.,Yang, Qiang.,...&Feng, Lihui.(2016).Investigation of free radicals and carbon structures in chars generated from pyrolysis of antibiotic fermentation residue.RSC ADVANCES,6(112),111226-111232. |
| MLA | Hong, Chen,et al."Investigation of free radicals and carbon structures in chars generated from pyrolysis of antibiotic fermentation residue".RSC ADVANCES 6.112(2016):111226-111232. |
入库方式： OAI收割
来源：生态环境研究中心
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