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All Journal VALENSI SAINS DAN MATEMATIKA JURNAL KIMIA SAINS DAN APLIKASI Jurnal Sains Dasar ENGINEERING Bulletin of Chemical Reaction Engineering & Catalysis Elkawnie Indonesian Journal of Chemistry Jurnal Kelautan Nasional ASEAN Journal of Chemical Engineering Greensphere: Journal of Environmental Chemistry Jurnal Rekayasa Kimia & Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis
Adi Darmawan
Chemistry Department, Faculty Of Sciences And Mathematics, Diponegoro University, Jl. Prof. Soedarto, SH., Tembalang, Semarang|Diponegoro University|Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics

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Journal : VALENSI

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Deconvolution of TEOS/TEVS Xerogel by Single or Dual Organic Catalyst Addition Anna Sumardi; Muthia Elma; Aptar Eka Lestari; Zaini Lambri Assyaifi; Adi Darmawan; Isna Syauqiah; Erdina Lulu Atika Rampun; Yanti Mawaddah; Linda Suci Wati
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 6, No. 2, November 2020
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v6i2.17597

Abstract

Currently, xerogel has been applied as a filtration material, especially in membrane desalination. However, the xerogel matrix structure for desalination have to be designed properly in order to allow rejection of salt and obtain good hydro-stability, thus, silica precursor in the form of TEOS (tetraethyl orthosilicate)/TEVS (triethoxy vinyl silane) and organic acid catalyst are suitable material for fabrication. The aim of this study is therefore to fabricate and perform deconvolution of TEOS/TEVS xerogel by adding single or dual catalyst, using FTIR (Fourier-transform Infrared Spectroscopy) and Fityk software. The xerogel was fabricated by dried silica sol and calcined using RTP technique (rapid thermal processing) at 450 °C.  Prior to this fabrication, the silica sol was synthesized by sol gel method, using a mixture of silica precursor TEOS/TEVS, ethanol solvent, and varied addition of single catalyst (citric acid) as well as dual catalyst (citric acid + ammonia) for 2 hours, at 50 °C. Subsequently, the xerogel was characterized by FTIR and the deconvolution was obtained through Gaussian approach, with Fityk software. All TEOS/TEVS xerogel samples indicated existence of silanol (Si-OH), siloxane (Si-O-Si) and silica-carbon (Si-C) functional groups. The xerogel deconvolution of TEOS/TEVS using single catalyst exhibit a peak area ratio of Si-OH/Si-O-Si, and this is similar to the dual catalyst counterpart of 0.24 (unit area) and 1.86 (unit area), for Si-C area ratio. This shows the addition of single catalyst was enough to produce deconvolution in TEOS/TEVS xerogel, dominated by siloxane functional group and carbon bonds with the ability to enhance membrane material hydro-stability’s fabrication.
Co-Authors . Widayat Agus Subagio Agus Sufyan Ahmad Kusumaatmaja Ahmad Suseno Andrew Pradana Putra Anna Sumardi Anna Sumardi Aptar Eka Lestari Aptar Eka Lestari Artha Monica Andini Aulia Rahma Azwar Thaib Brigita Maria Listyani Choiril Azmiyawati Choiril Azmiyawati Cut Rahmawati Dwi Rasy Mujiyanti Endang Sawitri Erdina Lulu Atika Rampun Evan Evan Febio Dalanta Hadhi Nugroho Hanifa Zakiyatul Urbach Heru Susanto Indriana Kartini Isna Syauqiah Isna Syauqiah Kristinawati, Leny Lathifah Puji Hastuti Lia Handayani Lia Handayani Linda Suci Wati Linda Suciwati Linda Suyati Listiana Listiana Lusiana, RA. M. Fajar Sidiq, M. Fajar Marta Chandra Anikke Putri Muslimin Muslimin Mustaqim , Muthia Elma Nurhayati Nurhayati Nurhayati Nurhayati P Siahaan Pardoyo Pardoyo Pardoyo Pardoyo Purnomo, Slamet Agus Silviana Silviana Sriatun Sriatun Suhartana Suhartana Wasino Hadi Rahmanto Yanti Mawaddah Yanti Mawaddah Yayuk Astuti Zaini Lambri Assyaifi Zaini Lambri Assyaifi