Pure silica NU-1 and Na- and Al-free Ti-NU-1 synthesized by the dry gel conversion method

被引：36

作者：

Bhaumik, A ^{[1
]}

Tatsumi, T ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Tokyo 113, Japan

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2000年 / 34卷 / 01期

基金：

日本学术振兴会;

关键词：

dry gel; hydroxyl band; NU-1; titanium silicate; TMA-OH;

D O I：

10.1016/S1387-1811(99)00144-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Pure silica NU-1 and its titanium silicate analog Ti-NU-1, free from Na and Al, have been synthesized for the first time using the dry gel conversion technique, which was not previously possible under the conventional hydrothermal synthesis procedure. These materials were characterized by XRD, FT IR, UV-vis, TG/DTA, SEM and N-2 adsorption measurements. The presence of a strong framework IR band at similar to 960 cm(-1) and an UV-vis diffuse reflectance band at 220-240 nm in Ti-NU-1 is an indication of highly dispersed tetrahedral titanium species in the silicate matrix. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 7

页数：7

共 13 条

[1] Titanosilicate derivative of the NU-1 framework zeolites (TS-NU-1) [J].