Preparation of Ti-containing mesoporous zeolite using two-step hydrothermal synthesis method

被引：1
|
作者：
Wang, Xiaobin [1 ]
Sun, Minyong [1 ]
Meng, Bo [1 ]
Yang, Naitao [1 ]
Tan, Xiaoyao [2 ]
机构：
[1] Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China
[2] Tianjin Polytech Univ, Dept Chem Engn, Tianjin 300387, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 171卷
基金：
中国国家自然科学基金;
关键词：
Porous materials; Mesoporous; Microstructure; Hydrothermal stability; Titanosilicates; TITANOSILICATE PRECURSORS; MOLECULAR-SIEVES; OXIDATION; PERFORMANCE; CATALYSTS; PORE;
D O I：
10.1016/j.matlet.2016.01.160
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel mesostructured titanosilicates (Ti-MST) have been successfully assembled from preformed silicalite-1 precursors using two-step hydrothermal synthesis method. The samples were characterized by XRD, FT-IR, UV-vis and N-2 physisorption. The results show that Ti-MST zeolites are pure mesoporous phase possessing zeolitic secondary building units (SBU) in the pore walls. UV-vis confirms the existence of tetrahedral coordinated titanium. N-2 physisorption exhibits that the pore diameter and BET surface area of Ti-MST-8 are 2.8 nm and 1213 m(2)/g. Ti-MST displays high hydrothermal stability in boiling water as compared with Ti-MCM-41 due to the incorporation of SBU fragments in the mesopore walls. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：59 / 62
页数：4
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