EMAIL: PASSWORD:
Front Office
UPT. PERPUSTAKAAN
Institut Teknologi Sepuluh Nopember Surabaya


Kampus ITS Sukolilo - Surabaya 60111

Phone : 031-5921733 , 5923623
Fax : 031-5937774
E-mail : libits@its.ac.id
Website : http://library.its.ac.id

Support (Customer Service) :
timit_perpus@its.ac.id




Welcome..guys!

Have a problem with your access?
Please, contact our technical support below:
LIVE SUPPORT


Moh. Fandika Aqsa


Davi Wahyuni


Tondo Indra Nyata


Anis Wulandari


Ansi Aflacha




ITS » Scientific Articles » Teknik Kimia
Posted by didikp@chem.its.ac.id at 07/04/2013 20:33:32  •  865 Views


THE EFFECT OF CRYSTALLIZATION TIME ON THE FORMATION OF MESOPHASE TITANIUM SILICALITE-1

Author :
WIDATI, ALFA AKUSTIA ( none )
FANSURI, HAMZAH; AKHLUS, SYAFSIR   EDIATI, RATNA; PRASETYOKO, DIDIK




ABSTRAK

Mesoporous titanium silicalite TS-1 with various crystallization time 2 4 and 8 days were successfully synthesized using microporous TS-1 as seeding material and cethyltrimethylammonium bromideCTABr as template. The solid products were characterized by X-ray Diffraction XRD Fourier Transform Infrared FTIR and Ultra Violet Visible Diffuse Reflectance UV-Vis DR spectroscopies N2 adsorption-desorption and Field Emission Scanning Electron Microscopy FESEM techniques to study structural properties of the samples. All of the catalyst material has MFI type of zeolite with orthorhombic structure. Diffractogram data stated that mesoporous TS-1 synthesized with crystallization time for 2 days had a regular mesopore which not observed for 4 and 8 days of crystallization time. Both of XRD pattern and FTIR spectra showed that the formation of mesophase decreased at longer crystallization time while the crystallinity was higher. UV-Vis DR spectra indicated that mesoporous TS-1 was arranged by tetrahedral titanium coordinated framework. It also suggested that there was a closed structure between mesoporous TS-1 and Ti-MCM-41 because of the presence of tetrahedral tripodal TiOSi3OH and tetrapodal TiOSi4 species. Variation of crystallization time had a great influence on the surface area and pore size of TS-1. All of the samples showed isotherm type IV of N2 adsorption-desorption. The BET mesopore surface area the mesopore volume and the pore size were decreased as crystallization time increased as followed 298 m2g 0.37 ccg and 381 nm 2 days 164 m2g 0.26 ccg and 3.42 nm 4days 141 m2g 0.17 ccg and 3.05 nm 8 days. This synthesized technique resulted TS-1 with combination of micro and meso phase that proved with t-plot data.



KeywordsCharacterization; Crystallization time; Mesoporous TS-1.
 
Subject:  Crystallization
Date Create: 03/11/2010
Type: Text
Format: PDF
Language: English
Identifier: ITS-Article-14105130000561
Collection ID: 14105130000561
Call Number: 660.284 298 Wid t


Source
article of Proceeding The 1st International Seminar on Fundamental and Application of chemical engineering ISFACHE 2010 november 3-4 2010 Bali indonesia

Coverage
ITS Community

Rights
The 1st International Seminar on Fundamental and Application of chemical engineering ISFACHE 2010 november 3-4 2010 Bali indonesia




[ Download - Summary ]

ITS-Article-14105130000561-24376.pdf




 Similar Document...




! ATTENTION !

To facilitate the activation process, please fill out the member application form correctly and completely

Registration activation of our members will process up to max 24 hours (confirm by email). Please wait patiently

POLLING

Bagaimana pendapat Anda tentang layanan repository kami ?

Bagus Sekali
Baik
Biasa
Jelek
Mengecewakan





You are connected from 3.85.10.62
using CCBot/2.0 (https://commoncrawl.org/faq/)



Copyright © ITS Library 2006 - 2019 - All rights reserved.
Dublin Core Metadata Initiative and OpenArchives Compatible
Developed by Hassan