Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

Riwandi Sihombing; Yuni  Krisyuningsih; Rahma Widya; Siti Zahrotul Luthfiyah; Rika Tri Yunarti

doi:10.7454/mss.v19i4.5166

Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

Riwandi Sihombing, Yuni Krisyuningsih, Rahma Widya, Siti Zahrotul Luthfiyah, Rika Tri Yunarti

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

In order to enhance adsorption capacity of gibbsite (Al(OH)3 as an adsorbent for the adsorption of phosphate in water, gibbsite was modified through lithium-intercalation. The purification method of Tributh and Lagaly was applied prior to intercalation. The Li-Intercalation was prepared by the dispersion of gibbsite into LiCl solution for 24 hours. This intercalation formed an cationic clay with the structure of [LiAl2(OH)6]+ and exchangeable Cl- anions in the gibbsite interlayer. A phosphate adsorption test using Lithium-intercalated gibbsite (LIG) resulted in optimum adsorption occurring at pH 4.5 with an adsorption capacity of 11.198 mg phosphate/g LIG which is equivalent with 1.04 wt% LIG. The adsorption capacity decreased with decreasing amounts of H2PO4-/HPO4- species in the solution. This study showed that LIG has potential as an adsorbent for phosphate in an aqueous solution with pH 4.5–9.5.

Original language	English
Journal	Makara Journal of Science
Volume	19
Issue number	4
DOIs	https://doi.org/10.7454/mss.v19i4.5166
Publication status	Published - 2015

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title = "Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite",

abstract = "In order to enhance adsorption capacity of gibbsite (Al(OH)3 as an adsorbent for the adsorption of phosphate in water, gibbsite was modified through lithium-intercalation. The purification method of Tributh and Lagaly was applied prior to intercalation. The Li-Intercalation was prepared by the dispersion of gibbsite into LiCl solution for 24 hours. This intercalation formed an cationic clay with the structure of [LiAl2(OH)6]+ and exchangeable Cl- anions in the gibbsite interlayer. A phosphate adsorption test using Lithium-intercalated gibbsite (LIG) resulted in optimum adsorption occurring at pH 4.5 with an adsorption capacity of 11.198 mg phosphate/g LIG which is equivalent with 1.04 wt% LIG. The adsorption capacity decreased with decreasing amounts of H2PO4-/HPO4- species in the solution. This study showed that LIG has potential as an adsorbent for phosphate in an aqueous solution with pH 4.5–9.5.",

author = "Riwandi Sihombing and Yuni Krisyuningsih and Rahma Widya and Luthfiyah, {Siti Zahrotul} and Yunarti, {Rika Tri}",

year = "2015",

doi = "10.7454/mss.v19i4.5166",

language = "English",

volume = "19",

journal = "Makara Journal of Science",

issn = "2339-1995",

publisher = "Universitas Indonesia",

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T1 - Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

AU - Sihombing, Riwandi

AU - Krisyuningsih, Yuni

AU - Widya, Rahma

AU - Luthfiyah, Siti Zahrotul

AU - Yunarti, Rika Tri

PY - 2015

Y1 - 2015

N2 - In order to enhance adsorption capacity of gibbsite (Al(OH)3 as an adsorbent for the adsorption of phosphate in water, gibbsite was modified through lithium-intercalation. The purification method of Tributh and Lagaly was applied prior to intercalation. The Li-Intercalation was prepared by the dispersion of gibbsite into LiCl solution for 24 hours. This intercalation formed an cationic clay with the structure of [LiAl2(OH)6]+ and exchangeable Cl- anions in the gibbsite interlayer. A phosphate adsorption test using Lithium-intercalated gibbsite (LIG) resulted in optimum adsorption occurring at pH 4.5 with an adsorption capacity of 11.198 mg phosphate/g LIG which is equivalent with 1.04 wt% LIG. The adsorption capacity decreased with decreasing amounts of H2PO4-/HPO4- species in the solution. This study showed that LIG has potential as an adsorbent for phosphate in an aqueous solution with pH 4.5–9.5.

AB - In order to enhance adsorption capacity of gibbsite (Al(OH)3 as an adsorbent for the adsorption of phosphate in water, gibbsite was modified through lithium-intercalation. The purification method of Tributh and Lagaly was applied prior to intercalation. The Li-Intercalation was prepared by the dispersion of gibbsite into LiCl solution for 24 hours. This intercalation formed an cationic clay with the structure of [LiAl2(OH)6]+ and exchangeable Cl- anions in the gibbsite interlayer. A phosphate adsorption test using Lithium-intercalated gibbsite (LIG) resulted in optimum adsorption occurring at pH 4.5 with an adsorption capacity of 11.198 mg phosphate/g LIG which is equivalent with 1.04 wt% LIG. The adsorption capacity decreased with decreasing amounts of H2PO4-/HPO4- species in the solution. This study showed that LIG has potential as an adsorbent for phosphate in an aqueous solution with pH 4.5–9.5.

U2 - 10.7454/mss.v19i4.5166

DO - 10.7454/mss.v19i4.5166

M3 - Article

SN - 2339-1995

VL - 19

JO - Makara Journal of Science

JF - Makara Journal of Science

IS - 4

ER -

Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

Abstract

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