CD Skripsi

Optimasi Dosis, Ph Dan Konsentrasi Adsorbat Pada Penjerapan Zat Warna Rhodamine B Oleh Serbuk Kulit Kayu Akasia (Acacia Crassicarpa)

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Acacia bark powder (Acacia crassicarpa) is a biomass that contains cellulose, lignin and hemicellulose as active sites of adsorbent. The purpose of this study was to determine the adsorbent dose, pH and optimum adsorbate concentration as well as the adsorption isotherm model of Rhodamine B by acacia bark powder
(Acacia crassicarpa). The method used in this research is batch system adsorption. Acacia bark adsorbent (Acacia crassicarpa) was prepared in the form of raw material powder through sieving with particle size of 200 mesh < x < 100 mesh. Adsorbent characteristics were observed using SEM-EDS, BET and FTIR instruments. Variation of adsorbent dosage (0.1; 0.25; 0.5; 0.75 and 1 g), solution pH and pHpzc (2, 4, 6, 8 and 10) and adsorbate concentration (10, 20, 30, 40 and 50 ppm) were studied for Rhodamine B adsorption by acacia bark powder
(Acacia crassicarpa). SEM-EDS results showed a porous and relatively rough adsorbent surface dominated by carbon (C) and oxygen (O) elements. BET results obtained adsorbent surface area, pore volume and pore diameter of 0.460 m2/g, 4.361×〖"10" 〗^"-3" cc/g and 379.008 Å, respectively. FTIR results showed the presence of N-H, -OH, C-H, C=O, C=C and C-O functional groups. Adsorption results showed an optimum adsorbent dose of 0.5 g, the best solution pH at pH 2, pHpzc of 4.3 and an optimum adsorbate concentration of 40 ppm with an adsorption efficiency of 98.42% and an adsorption capacity of 3.9358 mg/g. The adsorption isotherm model that fulfills is the Temkin isotherm with a coefficient of determination ("R" ^"2" ) of 0.9661 which states that adsorption occurs on heterogeneous surfaces and is physisorption because the value of βt < 8 kJ/mol is 0.4632 kJ/mol. Based on the results of this study, it can be concluded that acacia bark powder
(Acacia crassicarpa) has good performance in adsorbing Rhodamine B dye.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2103112883

Penerbit

Pekanbaru : Universitas Riau FMIPA Kimia., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2103112883

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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