Microwave Synthesis of TiTanium Silicalite-1 Using Solid Phase Precursors

Title
Microwave Synthesis of TiTanium Silicalite-1 Using Solid Phase Precursors
Authors
Park, D.W.; Ahn, W.S.; Lee, C.M.; Oh, J.H.
Keywords
CATALYTIC-OXIDATION, SILICATES
Issue Date
2004-05
Publisher
KOREAN CHEMICAL SOC
Abstract
Titanium silicalite-1 (TS-1) molecular sieve was produced by microwave heating of amorphous titanium-containing solid precursors after impregnation with aqueous TPAOH solution. SiO2-TiO2 xerogel, sub-micron sized SiO2-TiO2 prepared by thermal plasma process, and Ti-containing mesoporous silica, Ti-HMS, were tested as the solid phase substrates. Highly crystalline product was obtained within 30 min. after microwave irradiation with yields over 90% using SiO2-TiO2 xerogel, which showed essentially identical physicochemical properties to TS-1 prepared by conventional hydrothermal method. Excellent catalytic activity was also obtained for 1-hexene epoxidation using H2O2. SiO2-TiO2 particles prepared by thermal plasma and Ti-HMS were found inferior as a substrate for TS-1, probably due to difficulties in wetting the surface uniformly with TPAOH.
URI
http://dspace.inha.ac.kr/handle/10505/20388
ISSN
0253-2964
Appears in Collections:
College of Engineering(공과대학) > Chemical Engineering (화학공학) > Journal Papers, Report (화학공학 논문, 보고서)
Files in This Item:
Microwave.pdfDownload

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse