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Peat soil treatment using hydrogen peroxide and its adsorption towards potassium ion (K+) in aqueous solution

SAINS TANAH - Journal of Soil Science and Agroclimatology · Vol. 22 No. 1 (2025) · hlm. 119–126

DOI
10.20961/stjssa.v22i1.93520
ISSN
2356-1424, 1412-3606
Terbit
2025-06-02
Penerbit
Universitas Sebelas Maret
Bahasa
en

Abstrak

Peat soil contains functional groups such as carboxylic acid and hydroxyls that bind metal ions and organic compounds in solution. However, the adsorption capacity of natural peat soil is still considered low. Therefore, this study aims to alter the peat surface using a hydrogen peroxide solution and to utilize the resulting peat as an adsorbent for K+ ions in an aqueous solution. Peat soil was treated with a 10% hydrogen peroxide solution for 30 minutes. The infrared spectra of the treated peat indicated an increase in the intensity of hydroxyl groups (-OH) at 3400 cm-1 and a sharp increase in carboxylic groups (-COOH) at 1700 cm-1. SEM photos showed that the porosity of the treated peat was higher, probably due to oxidation reactions that resulted in new pores on the surface, and BET analysis confirmed the increase in surface area upon treatment. During the adsorption experiment, the residual concentrations of K+ ions were determined using AAS. The adsorption capacities of raw and treated peat were 37.40 mg g-1 and 59.53 mg g-1, respectively. When fitted using Langmuir and Freundlich adsorption isotherm models, the adsorption data plots followed the Freundlich isotherm model, indicating reversible adsorption on heterogeneous surfaces. The Density Functional Theory (DFT) calculation showed that the interaction energy between peat soil and K+ ions was lower after treatment, indicating that K+ ions bind to exchange sites on the treated peat soil.

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  • Indonesia University of Education
  • Universiti Sains Malaysia
  • State University of Malang
  • Bandung Institute of Technology
  • Monash University
  • National Research and Innovation Agency
  • Universitas Gadjah Mada
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Rekan penulisOrganisasiArtikel bersama
Jessica VeronicaIndonesia University of Education2
Budiman AnwarBandung Institute of Technology2
Nedya Tresna Dwi HidayahIndonesia University of Education2
Maryono MaryonoIndonesia University of Education2
Agus SetiabudiIndonesia University of Education2
Hernani HernaniIndonesia University of Education1
Ahmad MudzakirIndonesia University of Education1
Dian MustikasariIndonesia University of Education1
Sri MulyaniIndonesia University of Education1
Wiji WijiIndonesia University of Education1
Tuszie WidhiyantiIndonesia University of Education1
Jihan Assyifa FatihahIndonesia University of Education1
Restiani Alia PutriIndonesia University of Education1
Yessi PermanaBandung Institute of Technology1
Istifhamy IrnandaState University of Malang1
Ubed Sonai Fahruddin ArroziState University of Malang1
Yurin Karunia Apsha Albaina IasyaIndonesia University of Education1
Fitri KhoerunnisaIndonesia University of Education1
Sadina Sahitya DwiIndonesia University of Education1
Murni HandayaniNational Research and Innovation Agency1
Wijayanti Dwi AstutiUniversitas Gadjah Mada1
Wen‐Da OhUniversiti Sains Malaysia1

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Sumber metadata: OAI-PMH (metadata jurnal) https://jurnal.uns.ac.id/tanah/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">Peat soil treatment using hydrogen peroxide and its adsorption towards potassium ion (K+) in aqueous solution</dc:title>
	<dc:creator xml:lang="en">Yuliani, Galuh</dc:creator>
	<dc:creator xml:lang="en">Karina, Suci</dc:creator>
	<dc:creator xml:lang="en">Nurhayati, Mita</dc:creator>
	<dc:creator xml:lang="en">Mutiara, Siska</dc:creator>
	<dc:creator xml:lang="en">Mollah, Mamun</dc:creator>
	<dc:creator xml:lang="en">Ganesan, Shangeetha</dc:creator>
	<dc:subject xml:lang="en">Peat soil</dc:subject>
	<dc:subject xml:lang="en">Hydrogen peroxide</dc:subject>
	<dc:subject xml:lang="en">Adsorption</dc:subject>
	<dc:subject xml:lang="en">Potassium</dc:subject>
	<dc:subject xml:lang="en">Freundlich isotherm</dc:subject>
	<dc:description xml:lang="en">Peat soil contains functional groups such as carboxylic acid and hydroxyls that bind metal ions and organic compounds in solution. However, the adsorption capacity of natural peat soil is still considered low. Therefore, this study aims to alter the peat surface using a hydrogen peroxide solution and to utilize the resulting peat as an adsorbent for K+ ions in an aqueous solution. Peat soil was treated with a 10% hydrogen peroxide solution for 30 minutes. The infrared spectra of the treated peat indicated an increase in the intensity of hydroxyl groups (-OH) at 3400 cm-1 and a sharp increase in carboxylic groups (-COOH) at 1700 cm-1. SEM photos showed that the porosity of the treated peat was higher, probably due to oxidation reactions that resulted in new pores on the surface, and BET analysis confirmed the increase in surface area upon treatment. During the adsorption experiment, the residual concentrations of K+ ions were determined using AAS. The adsorption capacities of raw and treated peat were 37.40 mg g-1 and 59.53 mg g-1, respectively. When fitted using Langmuir and Freundlich adsorption isotherm models, the adsorption data plots followed the Freundlich isotherm model, indicating reversible adsorption on heterogeneous surfaces. The Density Functional Theory (DFT) calculation showed that the interaction energy between peat soil and K+ ions was lower after treatment, indicating that K+ ions bind to exchange sites on the treated peat soil.</dc:description>
	<dc:publisher xml:lang="en">Universitas Sebelas Maret</dc:publisher>
	<dc:date>2025-06-02</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://jurnal.uns.ac.id/tanah/article/view/93520</dc:identifier>
	<dc:identifier>10.20961/stjssa.v22i1.93520</dc:identifier>
	<dc:source xml:lang="en">SAINS TANAH - Journal of Soil Science and Agroclimatology; Vol. 22 No. 1 (2025): June; 119-126</dc:source>
	<dc:source>2356-1424</dc:source>
	<dc:source>1412-3606</dc:source>
	<dc:source>10.20961/stjssa.v22i1</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://jurnal.uns.ac.id/tanah/article/view/93520/50295</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 Galuh Yuliani, Suci Karina, Mita Nurhayati, Siska Mutiara, Mamun Mollah, Shangeetha Ganesan</dc:rights>
</oai_dc:dc>