CD Skripsi

Optimasi Waktu Kontak Dan Kecepatan Pengadukan Terhadap Adsorpsi Zat Warna Rhodamine B Menggunakan Arang Kulit Jagung Manis Teraktivasi H2so4

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Activated sweetcorn husk (Zea mays saccharata Sturt.) carbon using H2SO4 has potential as an adsorbent for Rhodamine B dye adsorption. The H2SO4 activator removes impurities, increasing the surface area. This study aims to determine the adsorption efficiency, capacity and kinetic model. The method was used a batch system with variations contact time (30, 45, 60, 75 and 90 minutes) and stirring
speed (100, 150, 200, 250 and 300 rpm). The corn husk carbon was characterized according to SNI No. 06-3730-1995 standards, including mouisture content, ash content and Methylene Blue adsorption capacity. FTIR Spectrophotometry analysis revealed functional groups O ̶ H, C ̶ H, C=O, C=C and Si ̶ O. SEM-EDS analysis showed surface morphology and elemental composition. UV-Vis Spectrophotometry measured Rhodamine B absorbance. The optimum contact time was 75 minutes with 79.91% efficiency and 1.6782 mg/g capacity. The optimum stirring speed was 250 rpm with 84.01% efficiency and 1.7644 mg/g capacity. The pseudo second order kinetic model fitted well with R2 = 0.9902 and rate constant (k2) = 0.0454 g mg-1 min-1. The activated carbon exhibits active sites and both contact time and stirring speed significantly influence the adsorption process (sig < 0.05). These findings suggest that H2SO4 activated sweetcorn husk is a promising adsorbent for Rhodamine B removal.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2103110144

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2103110144

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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