ADSORPSI KATION Pb(II) DAN Cr(III) OLEH BATU PADAS JENIS LADGESTONE TERAKTIVASI H2SO4 DAN NaOH

  • Novita Rambu Atandawu
  • Ida Ayu Gede Widihati
  • I Wayan Suarsa

Abstract

Adsorption of Pb (II) and Cr (III) cations by ladgestone activated with 2 N sulfuric acid, and 4 N sodium hydroxide have been studied. The activation aims to increase the adsorption capacity of the ladgestone which was characterized by measuring its specific surface area and the acidity of the ladgestone surface. In addition, equilibrium adsorption time, isotherm adsorption, and the adsorption capacity were also determined using atomic absorption spectrophotometry (AAS).

The results showed that activation with 2 N sulfuric acid increased the acidity of ladgestone surface but it decreased the specific surface area, while activation with 4 N sodium hydroxide increased both the acidity and the specific surface area of the ladgestone. Hence, ladgestone activated with 4 N sodium hydroxide gave the highest adsorption capacity both for Pb (II) and Cr (III) which were 12.4976 mg/g and 12.4945 mg/g respectively.

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Author Biographies

Novita Rambu Atandawu
Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran
Ida Ayu Gede Widihati
Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran
I Wayan Suarsa
Jurusan Kimia FMIPA Universitas Udayana, Kampus Bukit Jimbaran
Published
2013-07-01
How to Cite
RAMBU ATANDAWU, Novita; WIDIHATI, Ida Ayu Gede; SUARSA, I Wayan. ADSORPSI KATION Pb(II) DAN Cr(III) OLEH BATU PADAS JENIS LADGESTONE TERAKTIVASI H2SO4 DAN NaOH. Jurnal Kimia (Journal of Chemistry), [S.l.], july 2013. ISSN 2599-2740. Available at: <https://ojs.unud.ac.id/index.php/jchem/article/view/8234>. Date accessed: 07 apr. 2020.
Section
Articles

Keywords

activated ladgestone, adsorption, adsorption capacity