Y型分子筛的红外光谱

来源期刊：中国有色金属学报1999年第4期

论文作者：肖和淼 高孝恢 丁敦煌 陈士夫

文章页码：833 - 836

关键词：分子筛；红外光谱；CoNaY；NiNaY；CdNaY；CaNaY；CrNaY

Key words：Y-type zeolite; infrared spectrum; CoNaY; NiNaY; CdNaY; CaNaY

摘    要：研究 了CoNaY，NiNaY，CdNaY，CaNaY及晶体结构已被破坏的“CrNaY"，在523 K 和10^-1Pa条件下处理后及其吸附苯后的红外光谱，认为415 cm^-1谱带归属于六元环的振动，403cm^-1 归属于十二元环的振动，511 cm^-1 吸收谱带归属于Si—O₁—T的弯曲振动。解释了Y型分子筛的Si—O₁—T易于断裂及511cm^-1谱带频率大于462cm^-1谱带频率的原因。

Abstract: To detail assignment of Y-type zeolite framework IR vibrational bands, CoNaY, NdNaY and CrNaY with demolished structure were treated at the conditions of 523K, 10^-1Pa and adsorbed benzene molecules, then their IR spectra were investigated. It is suggested that the band at 415cm^-1 is assigned to vibration of 6R , the band at 403cm^-1 is assigned to vibration of 12R and the band at 511cm^-1 is assigned to bending vibration of Si—O₁—T. The reasons of Si—O₁—T is subject to be broken and the band at 511 cm^-1 is situated higher frequence than the band at 462 cm^-1 have been explained.