JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)
Vol. 5 No. 1 (2023): Journal of Chemical Natural Resources

Effect of Addition of Oleic Acid as a Template with Tetraethylorthosilicate (TEOS) as Source of Silica on Porosity Mesoporous Silica Material

Andriayani (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara)
Claresta Ingrid Telambanua (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara)
Hamonangan Nainggolan (Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara)



Article Info

Publish Date
19 May 2023

Abstract

Mesoporous silica material has been synthesized using tetraethylorthosilicate (TEOS) as a source of silica, oleic acid as a template, and 3-aminopropyltrimethoxysilane (APMS) as co-structure directing agents (CSDA). The synthesis of silica material was made with a variation in the mole ratio of TEOS: Oleic acid with a ratio of 1: 0.2; 1: 0.3; 1: 0.5; 1: 0.6; 1: 0.7; 1: 0.9, and 1: 1. A mixture between TEOS and APMS was added to a mixture of oleic acid, HCl 0.1N and demineralized water then stirred at room temperature for 2 hours. Then aging, the mix at 80oC for 48 hours until solids are formed. Product separation was used in the centrifugation method. The resulting solid was dried at 50oC, and to remove the template, calcined at 550oC for 6 hours. The product of XRD analysis has a wider diffraction peak that indicates an amorphous material. The FT-IR spectrum shows the Si-OH and Si-O-Si groups which area characteristic of silica material. The product of SEM analysis offers the presence of sheets and plates of particle forms with different sizes. Adsorption desorption isotherm (BET) shows an isotherm type IV curve, and dominant pore sizes are 1.945 and 4.588 nm.

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Journal Info

Abbrev

JCNaR

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology

Description

Journal of Chemical Natural Resources (JCNaR) is a peer-reviewed biannual journal (February and August) published by TALENTA as an open access journal. The aim of the journal is to provide a medium to exchange ideas and information related to research and knowledge in disciplines of organic ...