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The Effect of Variation of HCl Concentration on the Silica Functional Groups Extracted from the Calcined Kendari Bay Clay

Indonesian Journal of Physics and its Applications · Vol. 1 No. 1 (2021) · pp. 1–6

ISSN
2775-9903
Published
2021-03-16
Publisher
Pendidikan Fisika FKIP Universitas Halu Oleo
Language
eng
License
creativecommons.org/licenses/by-nc/4.0

Abstract

Abstract: This study aims to determine the effect of variations in the concentration of HCl on the silica functional group extracted from the calcined Kendari bay Clay. The methods used are calcination and extraction, the mud is taken from Kendari bay and washed using distilled water then filtered and then dried under the hot sun for 24 hours, after which it is mashed with a mortar and sieved with a size of 60 mesh. The sample was calcined at 900 0C for 1 hour. Then the leaching process was carried out using HCl with a concentration of 4 M, 6 M, 8 M and 10 M, then homogenized using a magnetic stirrer at a temperature of 100 0C for 5 hours, after that it was filtered using filter paper and deposited to pH 7. The FTIR analysis results showed that each variation in the concentration of HCl has Si-O-Si and Si-O functional groups, but the greatest absorption intensity of the silica functional groups is found in HCl solution with a concentration of 8 M at wave number 1050.55 cm-1 which indicates the presence of Si-O groups Si-O -Si.

Keywords

Collaboration network of the authors

40 authors · 77 co-authorship links · showing the 40 most connected

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  • Universitas Halu Oleo
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
La SaharaAffiliation unknown6
Luh SukariasihUniversitas Halu Oleo6
Hunaidah MAffiliation unknown4
La TahangAffiliation unknown3
Ida UsmanAffiliation unknown2
Vivi Hastuti Rufa MongkitoAffiliation unknown2
Muh. YurisAffiliation unknown2
Putri OktavianAffiliation unknown2
Fitriani FitrianiAffiliation unknown2
Ilfa DiasmaniarAffiliation unknown2
Martiana MartianaAffiliation unknown2
Ferlyasari FerlyasariAffiliation unknown2
Sri Pina AriyantiAffiliation unknown2
Rosliana EsoAffiliation unknown2
Kiky Nurwuna AzurahAffiliation unknown1
Muh AnasAffiliation unknown1
Naim NaimAffiliation unknown1
Mayang NormaAffiliation unknown1
I Nyoman SudianaAffiliation unknown1
Made KusumayasaAffiliation unknown1
Hajjah HunaidahAffiliation unknown1
Hamzah HamzahAffiliation unknown1
Jamhir SafaniUniversitas Halu Oleo1
La AbaUniversitas Halu Oleo1
Evy Safitri HarahapAffiliation unknown1
A Naneng SafitriAffiliation unknown1
I Wayan SuamaAffiliation unknown1
Vebryatin SamandyAffiliation unknown1
Muhammad ZamrunAffiliation unknown1
Muhammad Zamrun FirihuAffiliation unknown1
Eris FebrianAffiliation unknown1
Desy SusilowatiAffiliation unknown1
La HamimuUniversitas Halu Oleo1
Emntekiu LatudengAffiliation unknown1
Hadija HadijaAffiliation unknown1
Mustari MustariAffiliation unknown1
Agus TrisnawatiAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://ojs.uho.ac.id/index.php/IJPiA/oai, first harvested 30 Okt 2026, last seen 30 Okt 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">The Effect of Variation of HCl Concentration on the Silica Functional Groups Extracted from the Calcined Kendari Bay Clay</dc:title>
	<dc:creator>Alwin, Alwin</dc:creator>
	<dc:creator>Anas, Muhammad</dc:creator>
	<dc:creator>Erniwati, Erniwati</dc:creator>
	<dc:subject xml:lang="en-US">Calcination; Functional Groups; Leaching; Silica</dc:subject>
	<dc:description xml:lang="en-US">Abstract: This study aims to determine the effect of variations in the concentration of HCl on the silica functional group extracted from the calcined Kendari bay Clay. The methods used are calcination and extraction, the mud is taken from Kendari bay and washed using distilled water then filtered and then dried under the hot sun for 24 hours, after which it is mashed with a mortar and sieved with a size of 60 mesh. The sample was calcined at 900 0C for 1 hour. Then the leaching process was carried out using HCl with a concentration of 4 M, 6 M, 8 M and 10 M, then homogenized using a magnetic stirrer at a temperature of 100 0C for 5 hours, after that it was filtered using filter paper and deposited to pH 7. The FTIR analysis results showed that each variation in the concentration of HCl has Si-O-Si and Si-O functional groups, but the greatest absorption intensity of the silica functional groups is found in HCl solution with a concentration of 8 M at wave number 1050.55 cm-1  which indicates the presence of Si-O groups Si-O -Si.</dc:description>
	<dc:publisher xml:lang="en-US">Pendidikan Fisika FKIP Universitas Halu Oleo</dc:publisher>
	<dc:contributor xml:lang="en-US"></dc:contributor>
	<dc:date>2021-03-16</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://ojs.uho.ac.id/index.php/IJPiA/article/view/17201</dc:identifier>
	<dc:source xml:lang="en-US">Indonesian Journal of Physics and its Applications; Vol 1, No 1 (2021): EDISI MARET 2021; 1-6</dc:source>
	<dc:source>2775-9903</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://ojs.uho.ac.id/index.php/IJPiA/article/view/17201/11527</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2021 Indonesian Journal of Physics and its Applications</dc:rights>
	<dc:rights xml:lang="en-US">http://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>