CD Skripsi

Adsorpsi Zat Warna Kristal Violet Menggunakan Serbuk Buah Jabon Putih (Anthocephalus Cadamba Miq.) Terkombinasi Air Gambut

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Humic acid can be used as an adsorbent with white jabon fruit powder (Anthocephalus cadamba Miq.) as the supporting solid. The adsorption ability of the biosorbent can be improved by NaOH activation process, which increases the active sites and enlarges the surface area of the biosorbent. This study aims to determine the optimal biosorbent dosage, pH, pHpzc and contact time for adsorbing Crystal Violet using the combined white jabon fruit powder. The research uses an adsorption method with batch system, FTIR analysis to determine the functional groups of the biosorbent and UV-Vis Spectrophotometry to measure the concentration of the dye solution. The adsorption process is performed at various biosorbent doses (0.05; 0.010; 0.015; 0.20 and 0.25 g), pH (2, 4, 6, 8 and 10), pHpzc (2, 4, 6, 8, 10 and 12) and contact time (30, 40, 50 and 60 minutes). The surface area of the biosorbent after combination increased from 1.265 µm to 1.640 µm. FTIR results indicated that the combinated white jabon fruit powder contains N-H, O-H, C-H, C=O, C=C and C-O functional groups. The optimum adsorption of Crystal Violet occurred at a dose of 0.20 g, pH 8 and contact time of 50 minutes with adsorption efficiency 91.53% and adsorption capacity 11.3778 mg/g. The pHpzc condition is obtained at pH 7.2, which means that the biosorbent surface is negatively charged because the pHpzc value is lower than the optimum pH. The adsorption kinetics model of Crystal Violet follows pseudo second order with R2 = 0.9966% and a rate constant 0.0221 g/mg min. These results indicate that the adsorption process is influenced by adsorbate concentration and biosorbent dosage. Based on the research, it can be concluded that the combined white jabon fruit powder has good adsorption effectiveness for adsorbing Crystal Violet dye.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2003110701

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2003110701

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

mardiah

Versi lain/terkait

Lampiran Berkas

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