粉煤灰激活中ATR/FTIR、FTIR和NMR的分析与比较  

Analysis and Comparisons of ATR/YTIR,FTIR and NMR in the Activation of Fly Ash

作　　者：易志慧[1] 蒋海青[1] 王晓钧[1] 于士刚[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《材料导报》2007年第F11期278-281,共4页Materials Reports

基　　金：国家"973"计划(2001CB610703)

摘　　要：采用ATR/FTIR对南京热电厂Ⅰ级粉煤灰及经过NaOH激发后的样品进行了分析,并且同FTIR和NMR的分析结果进行比较。研究结果表明:以表征表面特征的ATR/FTIR方法可以清晰地表征粉煤灰表面出现的变化,且随着碱浓度的提高变化明显,而以表征宏观几率特征的FTIR和NMR则没有反映出粉煤灰表面出现的变化。ATR/FTIR在粉煤灰的表面研究中具有独到效果。In this paper, the samples of Class Ⅰ fly ash from Nanjing power plant and the fly ash being activated by NaOH are analyzed by ATR/FTIR and these results are compared with those of FTIR and NMR methods. The results show that ATR/FTIR which is used to analyze exterior changes can characterize clearly that the surface struc- tures of fly ash have changed, and the changes on the surface are more obvious as the increase of alkaline concentration in the activating fly ash process. However, the FTIR and NMR that characterize the macro features of odds can′t show any change on the surface of fly ash. Therefore ATR/FTIR method is unique for the study of fly ash′s surface.

关 键 词：粉煤灰 激活 ATR/FTIR FTIR NMR 

分 类 号：TQ172[化学工程—水泥工业]