CD Skripsi

Karakterisasi Karbon Aktif Berbasis Limbah Cangkang Biji Ketapang (Terminalia Catappa Linn): Pengaruh Temperatur Karbonisasi

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Ketapang tree (Terminalia catappa) that has a plant often found in the Riau University and ketapang tree is one of the plant in the Riau University concept of "Kampus dalam Taman". Ketapang seed shells are part of the ketapang fruit which has undergone a long degradation process due to its high lignin content. Therefore, the lignin content and other carbon sources in the Ketapang Seed Shell (CBK) has been converted into activated carbon through the carbonization and activation process. CBK which has been prepared is carbonized with temperature variations of 400, 500 and 600°C for 30 minutes to produce charcoal were labeled ACBK-400, ACBK-500 and ACBK-600. It was followed by the activation process at the ratio of ACBK: KOH, 1: 3 (w/w) in 100 mL of water, temperature of 100°C, time of 6 hours, while stirring at a speed of 300 rpm. The mixture was filtered, and then the residue was calcined at 800°C for 30 minutes to produce activated carbon and were labeled KACBK-400, KACBK-500 and KACBK-600. The surface properties of charcoal (ACBK) and activated carbon (KACBK) including char yield, content (water, ash, volatile matter), acidity, functional groups and then structures, degree of crystallinity and parameters lattice were studied through gravimetric characterization, pyridine adsorption, FTIR. and XRD. The yield of charcoal in ACBK-400, ACBK-500 and ACBK-600 decreased with increasing carbonization temperature, with the highest yield in ACBK-400, namely 33.03%. The increase in carbonization temperature and the presence of the activation process results in decreased moisture and volatile matter, on the contrary, the ash content increases. The lowest value of water content and volatile matter was at KACBK-600, respectively 0.50% and 64.08% and the lowest ash content was at ACBK-400 of 0.78%. The water content and ash content obtained met the quality requirements of SNI No. 06-3730-1995 activated carbon, while the content of volatile matter has not yet the quality requirements. The FTIR results of CBK biomass showed the presence of functional groups O-H, C-H aliphatic, C=O carboxylate, C=C aromatic and C-O. Based on the adsorption of pyridine vapor, the total acidity obtained decreased with increasing carbonization temperature and all samples showed the presence of both types of acid sites, Bronsted and Lewis. XRD diffraction patterns on ACBK and KACBK showed 2θ = 22-23° at hkl (002) and 2θ = 42-44° at hkl (100) with a wide angle range and a sloping peak as a sign that this material has an amorphous structure. The highest degree of crystallinity at KACBK-600. The parameter of the Lc/La ratio increases with increasing carbonization temperature.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

03 02. 120 (0054)

Penerbit

Pekanbaru : Universitas Riau – FMIPA – Kimia., 2020

Deskripsi Fisik

xv, 46 hlm.: ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

03 02. 120 (0054)

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

ELFITRA

Versi lain/terkait

Lampiran Berkas

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