SINTESIS, AKTIVITAS DAN SELEKTIVITAS KATALIS 
Mg1-xZnxF2 PADA REAKSI SINTESIS α-TOKOFEROL

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ITS » Undergraduate Theses » Kimia
Posted by dee@its.ac.id at 17/01/2012 11:57:29 • 86 Views

SINTESIS, AKTIVITAS DAN SELEKTIVITAS KATALIS MG1-XZNXF2 PADA REAKSI SINTESIS α-TOKOFEROL

SYNTHESIS, ACTIVITY AND SELECTIVITY OF Mg1-xZnxF2 CATALYST ON α-TOCOPHEROL SYNTHESIS

Created by :
WAHYUNI, NINIK SRI ( 1407100073 )

Subject:	Katalisis
Alt. Subject :	Catalysis
Keyword:	α -tokoferol Doping Mg1-xZnxF2 Aktivitas Selektivitas

[ Description ]

Pada penelitian ini telah dipelajari sintesis dan aktivitas serta selektivitas katalis ZnO, MgF2 dan Mg1-xZnxF2 (x = 0,025; 0,050; 0,100 dan 0,150 mol) dalam reaksi sintesis α-tokoferol. Katalis dipreparasi kemudian dikarakterisasi dengan Difraksi sinar-X, FTIR-adsopsi piridin dan ditentukan luas permukaannya. Data XRD menunjukkan bahwa katalis MgF2 dan Mg1-xZnxF2 memiliki struktur yang sama yaitu tetragonal. Analisis FTIR�piridin menunjukkan semua katalis hasil sintesis memiliki sisi asam Lewis dan Br�nsted sedangkan luas permukaan katalis turun dengan adanya doping Zn. Aktivitas katalis ditentukan berdasarkan besarnya konversi reaktan trimetilhidrokuinon. Hasil penelitian menunjukkan bahwa aktivitas tertinggi dengan katalis MgF2 sebesar 98,47% dan selektivitas α-tokoferol tertinggi pada Mg0,950Zn0,050F2 sebesar 84,98%.

Alt. Description

In this research, synthesis, activity and selectivity of ZnO, MgF2 and Mg1-xZnxF2 catalyst (x = 0,025; 0,050; 0,100 and 0,150 mol) has been investigated. The prepared solid catalyst were characterized by X-ray diffraction, FTIR and surface area measurement.The XRD data presented MgF2 and Mg1-xZnxF2 have tetragonal structure. FTIR spectra of pyridine for all catalysts have Lewis and Br�nsted acid sites and surface area of catalyst decreased with increased Zn doping. The catalytic activity were determined based on percentage of trimethylhydroquinone convertion. The result show that MgF2 has the highest activity 98,47% and Mg0,950Zn0,050F2 has the highest selectivity of α-tokoferol 84,98%.

Contributor	:	Dr.rer.nat.Irmina Kris Murwani
Date Create	:	22/07/2011
Type	:	Text
Format	:	pdf
Language	:	Indonesian
Identifier	:	ITS-Undergraduate-3100012045240
Collection ID	:	3100012045240
Call Number	:	RSKi 541.395 Wah s

Source :
Undergraduate Thesis of Chemistry, RSKi 541.395 Wah s, 2011

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Copyright @2011 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library

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