CD Skripsi

Sintesis Adsorben Magnetik Fe3o4/Karbon Aktif Berbasis Pelepah Kelapa Sawit (Elaeis Gueneensis Jacq.) Teraktivasi Koh

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SUMMARY
Synthesis of magnetic activated carbon adsorbents has been successfully carried out on a laboratory scale. Activated carbon was made from palm frond biomass (OPF) by carbonization in a furnace at 600°C for 1 hour and chemically activated using KOH activator with a weight ratio of charcoal and KOH (1:3) which is then calcined at 800°C for 30 minutes. The preparation of magnetic adsorbent composite Fe3O4/activated carbon (MACOPF) was carried out by mixing activated carbon together with FeCl3.6H2O and FeSO4.7H2O salts in a mole ratio (2:1) by coprecipitation with adding 5 M NaOH solution at 70°C. Analysis of functional groups, structure, morphology, elemental composition and magnetic adsorbents were characterized by means of FTIR, XRD, SEM-EDS and VSM. The results of the functional group characterization of MACOPF showed that Fe3O4 was composited with activated carbon, according to the results of the FTIR analysis, O-H, C-H and Fe-O-C groups appeared. XRD analysis obtained the maximum peak of Fe3O4 at 2θ = 35° and activated carbon at 2θ = 26°. SEM analysis showed the surface morphology of activated carbon coated with Fe3O4 particles and EDS showed the composition of the main elements, namely carbon (C), oxygen (O) and iron (Fe). Magnetization analysis using VSM obtained a MACOPF magnetization value of 9.25 emu g-1, which is smaller than the magnetite (Fe3O4) value of 39.25 emu g-1. Adsorption tests on methylene blue solutions with various concentrations (50,75,100) mg g-1 were carried out to calculate the adsorption capacity of the adsorbent and determine the surface area. The maximum adsorption capacity of MACOPF is 50 mg g-1 and follows the Langmuir adsorption isotherm model with a surface area of 186 m2 g-1. The results of this study indicate that the composite magnetic adsorbent Fe3O4/activated carbon (MACOPF) has been successfully formed and has two properties, namely adsorption properties and magnetic properties which facilitate the process of separating the filtrate and post-adsorption adsorbate.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1803123931

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Kimia., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1803123931

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

TIAR

Versi lain/terkait

Lampiran Berkas

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