CD Skripsi

Biosorben Arang Aktif Kulit Kayu Jabon Putih (Anthocephalus Cadamba Miq.) Untuk Adsorpsi Ion Logam Timbal (II)

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White jabon bark (Anthocephalus cadamba Miq.) has a high chemical content of cellulose and lignin that has the potential to be used as an adsorbent to adsorb lead(II) metal ions. This study aims to determine the efficiency and adsorption capacity of white jabon bark-activated charcoal in adsorbing lead(II) metal ions, determine the kinetics model and adsorption isotherm. The preparation of white jabon bark charcoal was carried out by carbonization process at 800 ℃ for 90 minutes and activated with NaOH solution with a variation ratio of charcoal and activator 1:1; 1:2; 1:3; 1:4 and 1:5 (w/b). Characterization of activated charcoal refers to SNI 06-3730-1995. The functional groups of activated charcoal were analyzed using FTIR, the morphology of activated charcoal and the elemental composition of activated charcoal were analyzed using SEM-EDS, and the concentration of lead(II) metal ions was analyzed using AAS. The charcoal yield obtained was 15.7247%. The results of active charcoal characterization obtained a moisture content of 1.23%, ash content of 4.29%, iodine absorption capacity of 647.5453 mg/g, and methylene blue absorption capacity of 24.3776 mg/g with a surface area of 90.3853 m2 g. FTIR results show the functional groups of white jabon bark activated charcoal are C=C aromatic, O-H, C-H stretching aliphatic, C≡C, C=O carbonyl, N-H, and O-Pb. The best adsorption condition was obtained at pH 6, contact time 40 minutes, and adsorbate concentration 140 mg/L with efficiency 99.872% and adsorption capacity 6.623 mg/g. Based on the SEM-EDS test results, it is known that the active charcoal has elements of C, O, Ca, and P. The adsorption kinetics model follows the second-order pseudo equation with the equation y = 0.2146x + 0.0262, R2 = 1, and k = 1.7640 g/mg min. The adsorption isotherm model follows the Langmuir isotherm with the equation y = 0.0316x + 0.033 and R2 = 0.9962. Adsorption in this study occurred chemically with a single layer. 

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903111096

Penerbit

Pekanbaru : Universitas Riau – FMIPA – Kimia., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903111096

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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