CD Skripsi

Pengaruh Konsentrasi Adsorbat Dan Suhu Pada Penjerapan Zat Warna Safranin O Oleh Biosorben Buah Jabon Putih (Anthocephalus Cadamba Miq.) Kombinasi Asam Humat

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The white jabon fruit (Anthocephalus cadamba Miq.) combined with humic acid extracted from peat water, is believed to hold potential as a biosorbent capable of removing various dyes, including Safranin O. This fruit was selected due to its relatively high cellulose content, making it suitable for biosorption applications. The aim of this study is to determine the adsorption capacity and efficiency of the white jabon fruit biosorbent for Safranin O under optimal conditions, as well as to explore the corresponding adsorption isotherm and thermodynamic models. This research builds upon previously determined optimal parameters for dosage, pH and contact time. Optimization in this study was carried out by varying the adsorbate concentration (40, 60, 80 and 100 ppm) and temperature (30, 40 and 50°C). Surface morphology of the biosorbent was analyzed using SEM-EDS, while functional groups present before activation, after activation and following the biosorption process were identified using FTIR analysis. Adsorption capacity and efficiency were evaluated using a UV-Vis spectrophotometer. According to the Indonesian National Standard (SNI 06-3730-1995), the biosorbent’s adsorption capacity using methylene blue did not yet meet the required standard. SEM-EDS analysis revealed that the activated biosorbent contains elements such as C, O, Na, Ca and K. Surface area analysis using the BET method showed that the activated biosorbent had a surface area of 1.115 m²/g. The optimal biosorption condition was achieved at an adsorbate concentration of 80 ppm and a temperature of 50°C, yielding an adsorption capacity of 20.0670 mg/g and an efficiency of 99.0017%. The adsorption process followed the Temkin isotherm model (R² = 0.9862) which indicates that adsorption occurs chemically. Thermodynamic analysis indicated a negative ∆G°, positive ∆H° and positive ∆S°, suggesting that the adsorption process was spontaneous and was endothermic.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2103111748

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2103111748

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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