CD Skripsi

Selektivitas Penjerapan Ion Logam Berat Kadmium(Ii) Dan Besi(Iii) Dalam Campuran Menggunakan Arang Aktif Dari Biosorben Cangkang Kelapa Sawit (Elaeis Guineensis Jacq.)

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Palm shell (Elaeis guineensis Jacq.) was a palm oil plantation waste that was useful as an adsorbent because it contained cellulose, which played a role in the adsorption process, including heavy metals that were commonly found in mixed forms in the environment. This study aimed to determine the optimum conditions of stirring speed and temperature for the adsorption of cadmium(II) and iron(III) heavy metal ions in a mixture. The method used in this study was carbonization at 600°C for
2 hours, followed by activation using 0.1 mol/L NaOH solution and batch adsorption using activated carbon from palm shell for cadmium(II) and iron(III) heavy metal ions in a mixture with variations in stirring speed, namely 100; 150; 200 and 250 rpm and temperature variations, namely room temperature; 35; 40 and 50°C. The activated carbon from palm shell was characterized through iodine number test, Methylene Blue adsorption, SAPSA, SEM-EDS and FTIR. The concentrations of cadmium(II) and iron(III) heavy metal ions in the mixture before and after adsorption were measured using AAS. The results of the study showed that the optimum stirring speed was 200 rpm with adsorption efficiency of cadmium(II) heavy metal ions at 85.57% and iron(III) at 86.32% and the optimum temperature was room temperature with adsorption efficiency of cadmium(II) heavy metal ions at 86.57% and iron(III) at 87.67%. The adsorption of cadmium(II) and iron(III) heavy metal ions in the mixture showed ΔH occurred exothermically with values of -16.999 kJ/mol and -15.263 kJ/mol. The adsorption of cadmium(II) and iron(III) heavy metal ions in the mixture showed ΔS had a low level of system randomness with values of -59.899 J/mol and -53.087 J/mol. The adsorption of cadmium(II) and iron(III) heavy metal ions in the mixture showed ΔG occurred non-spontaneously with values of 1.106; 1.504; 1.755 and 2.328 kJ/mol for
cadmium(II) and 0.859; 1.028; 1.361 and 1.894 kJ/mol for iron(III) in the mixture. The adsorption in this study occurred through chemisorption and physisorption (van der Waals forces) with types of interactions including complex compound formation and electrostatic interaction.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2103112280

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2103112280

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Mutia

Versi lain/terkait

Lampiran Berkas

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