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Deconvolution of TEOS/TEVS Xerogel by Single or Dual Organic Catalyst Addition

VALENSI · Vol. ume No. 2 (2021) · hlm. 208–214

DOI
10.15408/jkv.v6i2.17597
ISSN
2548-3013, 2460-6065
Terbit
2021-02-25
Penerbit
Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University
Bahasa
eng

Abstrak

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.

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  • Lambung Mangkurat University
  • Diponegoro University
  • Universitas Abulyatama
  • Universitas Gadjah Mada
  • Bank Indonesia
  • Institut Teknologi Kalimantan
  • Politeknik Negeri Ujung Pandang
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Rekan penulisOrganisasiArtikel bersama
Yayuk AstutiDiponegoro University4
Eko SuhartonoLambung Mangkurat University4
Didik TriwibowoLambung Mangkurat University3
Rony RiduanLambung Mangkurat University3
Lia HandayaniUniversitas Abulyatama2
Aulia RahmaInstitut Teknologi Kalimantan2
Ihsan NoorLambung Mangkurat University2
Cut Aja RahmawatiUniversitas Abulyatama1
Nurhayati NurhayatiUniversitas Abulyatama1
Nurhayati NurhayatiPoliteknik Negeri Ujung Pandang1
Azwar ThaibUniversitas Abulyatama1
Iryanti Fatyasari NataLambung Mangkurat University1
Retno FebriyantiLambung Mangkurat University1
Ni Kadek Devi Ananda SaraswatiLambung Mangkurat University1
Paskah Fransiska Afrida SimatupangLambung Mangkurat University1
Rhafiq Abdul GhaniAfiliasi tidak diketahui1
Wahyu WahyuLambung Mangkurat University1
Agus MuslimDiponegoro University1
Trie Nanda MulyanaDiponegoro University1
Brainy Happy Ana TasimanDiponegoro University1
Hendri WidyandariSebelas Maret University1
Lathifah Puji HastutiUniversitas Gadjah Mada1
Ahmad KusumaatmajaUniversitas Gadjah Mada1
Indriana KartiniUniversitas Gadjah Mada1
Nopi Stiyati PrihartiniAfiliasi tidak diketahui1
Deni FakhrizalKementerian Kesehatan Republik Indonesia1
Meitria Syahdatina NoorLambung Mangkurat University1
Hafidz Noor FikriLambung Mangkurat University1
Prayudhi AzwarBank Indonesia1
Heryanto HandokoBank Indonesia1
Resti Nisaidha RahmiBank Indonesia1

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Sumber metadata: OAI-PMH (metadata jurnal) http://journal.uinjkt.ac.id/index.php/valensi/oai, pertama di-harvest 10 Nov 2026, terakhir terlihat 10 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Deconvolution of TEOS/TEVS Xerogel by Single or Dual Organic Catalyst Addition</dc:title>
	<dc:creator xml:lang="en">Sumardi, Anna</dc:creator>
	<dc:creator xml:lang="en">Elma, Muthia</dc:creator>
	<dc:creator xml:lang="en">Lestari, Aptar Eka</dc:creator>
	<dc:creator xml:lang="en">Assyaifi, Zaini Lambri</dc:creator>
	<dc:creator xml:lang="en">Darmawan, Adi</dc:creator>
	<dc:creator xml:lang="en">Syauqiah, Isna</dc:creator>
	<dc:creator xml:lang="en">Rampun, Erdina Lulu Atika</dc:creator>
	<dc:creator xml:lang="en">Mawaddah, Yanti</dc:creator>
	<dc:creator xml:lang="en">Wati, Linda Suci</dc:creator>
	<dc:subject xml:lang="en">Single catalyst</dc:subject>
	<dc:subject xml:lang="en">dual catalyst</dc:subject>
	<dc:subject xml:lang="en">TEOS/TEVS</dc:subject>
	<dc:subject xml:lang="en">xerogel</dc:subject>
	<dc:subject xml:lang="en">membrane desalination</dc:subject>
	<dc:description xml:lang="en">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.</dc:description>
	<dc:publisher xml:lang="en">Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University</dc:publisher>
	<dc:date>2021-02-25</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.uinjkt.ac.id/index.php/valensi/article/view/17597</dc:identifier>
	<dc:identifier>10.15408/jkv.v6i2.17597</dc:identifier>
	<dc:source xml:lang="en">Jurnal Kimia Valensi; Jurnal Kimia VALENSI Volume 6, No. 2, November 2020; 208-214</dc:source>
	<dc:source>2548-3013</dc:source>
	<dc:source>2460-6065</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.uinjkt.ac.id/index.php/valensi/article/view/17597/pdf_1</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2021 Muthia Elma</dc:rights>
</oai_dc:dc>