13C NMR and XPS characterization of anion adsorbent with quaternary ammonium groups prepared from rice straw, corn stalk and sugarcane bagasse
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- 作者：Wei Cao ; weicao@hqu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; weisince2012@163.com" class="auth_mail" title="E-mail the corresponding author ; Zhenqian Wang ; Qingling Zeng ; Chunhua Shen
- 关键词：Characterization ; Crop straw ; Modification ; Anion adsorbent ; Quaternary ammonium group
- 刊名：Applied Surface Science
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：389
- 期：Complete
- 页码：404-410
- 全文大小：1678 K
文摘
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13C NMR and XPS were successfully used to characterize quaternary ammonium groups in the surface of crop straw based anion adsorbents.
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The results obtained from different kinds of crop straw material clearly confirmed the presence of quaternary ammonium groups.
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The composition of C-groups and N-groups also were determined by curving fitting of high-resolution XPS C1 and N1 spectra.