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在对用ＸＲＤ表征确证分属于ＴＳ－２分子筛和无定形ＴＳ氧化物（简称ＡＴＳ）结构的一系列样品进行红外表征时，首次发现在分子筛骨架与无定形表面都存在Ｔｉ－Ｏ－ＳｉＯ３健，但这两者在红外上是可区分的，前者作为骨架钛振动带出现在９６２．５～９６６．７ｃｍ－１处，而后者作为非骨架钛振动带则出现在９４５～９５６ｃｍ－１处，即后者明显发生了红移．分子筛骨架振动带（１２２６，５５６ｃｍ－１）强弱对其Ｔｉ－Ｏ－ＳｉＯ３带的位置影响不大，比较而言骨架带弱的约有２．０ｃｍ－１的红移．苯酚羟基化结果表明在分子筛骨架上的Ｔｉ－Ｏ－ＳｉＯ３活性位上苯酚羟基化生成邻苯二酚和对苯二酚；而处于无定形表面的非骨架Ｔｉ－Ｏ－ＳｉＯ３活性位上只生成邻苯二酚
The results of X-ray diffraction (XRD) characterization of a series of samples belonging to TS-2 zeolite and amorphous TS oxide (ATS) showed that there were Ti-O-SiO3 bonds in the molecular sieve framework and amorphous surface, However, the two are distinguishable in the infrared. The former appears as a framework titanium vibration band at 962.5-966.7 cm-1, while the latter appears as a non-framework titanium vibration band at 945-956 cm-1 The latter obviously red shift occurred. The vibrational band of molecular sieve framework (1226,556cm-1) has little effect on the position of Ti-O-SiO3 band. In contrast, there is about 2.0cm-1 redshift with weak framework. Hydroxylation of phenol showed that the hydroxylation of phenol with Ti-O-SiO3 active sites on the molecular sieve framework resulted in catechol and hydroquinone, whereas the non-framework Ti-O-SiO3 active sites on the amorphous surface only produced Catechol