CD Skripsi

Pengaruh Dosis, Ph Dan Waktu Kontak Biosorben Buah Jabon Putih (Anthocephalus Cadamba Miq.) Yang Dilapisi Asam Humat Terhadap Adsorpsi Zat Warna Indigo Carmine

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White jabon fruit (Anthocephalus cadamba Miq.) was identified as a potential tropical plant for use as a biosorbent because it contained cellulose, the adsorption capacity of which could be enhanced through an activation process. The activation process of the biosorbent in this study was carried out chemically using NaOH and coated with humic acid from peat water, with the aim of increasing the surface area and multiplying the active sites on the biosorbent. This research was carried out to determine the efficiency and adsorption capacity of the powdered white jabon fruit biosorbent in adsorbing Indigo carmine, as well as to identify the appropriate adsorption kinetic model.The method used in this study was batch adsorption of Indigo carmine using variations in biosorbent dosage (0.1; 0.2; 0.3; 0.4 and 0.5 g), variations in solution pH (2; 4; 6 and 8) and variations in contact time (15; 30; 45 and 60 minutes). Surface morphology analysis was performed with SEM-EDS, and pore size determination was performed using ImageJ software. The functional groups of the biosorbent were analyzed using an FTIR instrument. Characterization was carried out according to SNI No.06-3730-1995 standards, which included a methylene blue adsorption capacity test. Analysis with a UV-Vis spectrophotometer was performed to determine the absorbance of Indigo carmine before and after adsorption. Adsorption parameters were obtained at an optimum biosorbent dosage of 0,4 g, an optimum solution pH of 2, and a contact time of 45 minutes, with an adsorption efficiency of 80,47 % and an adsorption capacity of 2,0016 mg/g. The adsorption kinetics model corresponded to the pseudo-second order with an R2 of 0.947 and a reaction rate constant of 0,0799 g/mg minute. Based on the research that was carried out, it was concluded that white jabon fruit powder biosorbent was effective in adsorbing Indigo carmine, and parameters such as biosorbent dosage, solution pH, and contact time were proven to influence the efficiency and adsorption capacity.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2103113810

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2103113810

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

ERA

Versi lain/terkait

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