Ti-ZSM-11的红外光谱研究  

Study on IR Spectra of Ti-ZSM-11 Zeolite

作　　者：张福顺[1] 吴志芸[1] 阚秋斌[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《物理化学学报》1995年第9期836-839,共4页Acta Physico-Chimica Sinica

摘　　要：The Ti-ZSM-11 zeolite was synthesized under hydrothermal condition. All samples of Ti-ZSM-11 showed an absorption at 960cm-1 - 980cm-1 in IR spectra, and the intensity of this band decreased with the increasing of the Si/Ti ratio. The IR spectra of TS-2 was compared with that of titanate, titania, amorphous silica and gel of reactant thexture. The resultes showed that this band was also observed in amorphous silica and gel of reactant mixture, but not found in titanate and titania. This characteristic absorption in TS-2 was assigned to a strectching of a [O3SiOTi] mode formed by a [SiO4] tetrahedral unit bonded to a Ti(IV) ion, and the position of this band was shifted with the different coordianion circumstances of Ti atom.The Ti-ZSM-11 zeolite was synthesized under hydrothermal condition. All samples of Ti-ZSM-11 showed an absorption at 960cm-1 - 980cm-1 in IR spectra, and the intensity of this band decreased with the increasing of the Si/Ti ratio. The IR spectra of TS-2 was compared with that of titanate, titania, amorphous silica and gel of reactant thexture. The resultes showed that this band was also observed in amorphous silica and gel of reactant mixture, but not found in titanate and titania. This characteristic absorption in TS-2 was assigned to a strectching of a [O3SiOTi] mode formed by a [SiO4] tetrahedral unit bonded to a Ti(IV) ion, and the position of this band was shifted with the different coordianion circumstances of Ti atom.

关 键 词：ZSM-11 红外光谱 TS-2 分子筛 钛 

分 类 号：TQ424.25[化学工程] O657.33[理学—分析化学]