Analisis Pengaruh Suhu Pemanasan Terhadap Sifat Fisikokimia Dan Konduktivitas Serbuk Karbon Dari Arang Cangkang Kelapa Sawit

Permatasari, Gabriella Tiara (2025) Analisis Pengaruh Suhu Pemanasan Terhadap Sifat Fisikokimia Dan Konduktivitas Serbuk Karbon Dari Arang Cangkang Kelapa Sawit. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Material karbon berbasis arang cangkang kelapa sawit (ACKS) merupakan salah satu material berbasis biomassa yang memiliki potensi aplikasi luas. Penelitian ini bertujuan untuk menganalisis pengaruh suhu pemanasan terhadap sifat fisikokimia dan konduktivitas listrik serbuk karbon yang dihasilkan. Variasi perlakuan suhu pemanasan yang digunakan adalah tanpa pemanasan (ACKS), 400°C (ACKS A), 450°C (ACKS B), dan 500°C (ACKS C). Hasil uji XRD menunjukkan bahwa material ACKS memiliki struktur karbon amorf pada semua variasi suhu pemanasan, dengan intensitas puncak difraksi yang menurun seiring bertambahnya suhu. Spektrum FTIR mengindikasikan penurunan intensitas dan pergeseran bilangan gelombang akibat adanya perlakukan termal, sedangkan analisis SEM-EDX menunjukkan perubahan morfologi material menjadi lebih kasar dengan peningkatan ukuran pori rata-rata. Hasil XPS mengonfirmasi keberadaan struktur aromatik pada material dengan berbagai gugus fungsional polar. Uji konduktivitas listrik menunjukkan bahwa nilai konduktivitas larutan serbuk karbon menurun seiring meningkatnya suhu pemanasan. Sampel ACKS tanpa perlakuan panas memiliki nilai konduktivitas tertinggi (68,2 μS·cm⁻¹), sedangkan ACKS C menunjukkan konduktivitas terendah (24,4 μS·cm⁻¹) akibat stabilisasi struktur karbon dan hilangnya gugus polar.
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Palm kernel shell-based carbon material (ACKS) is a biomass-based material with broad potential applications. This study aims to analyze the effect of heating temperature on the physicochemical properties and electrical conductivity of the resulting carbon powder. The heating temperature variations applied were no heating (ACKS), 400°C (ACKS A), 450°C (ACKS B), and 500°C (ACKS C). XRD analysis revealed that ACKS exhibits an amorphous carbon structure across all heating temperature variations, with a decrease in diffraction peak intensity as the temperature increases. FTIR spectra indicates a decrease in intensity and a shift in a wavenumber due to thermal treatment, while SEM-EDX analysis demonstrated morphological changes, including rougher surfaces and an increase in average pore size. XPS results confirmed the presence of aromatic structures in the material, accompanied by various polar functional groups. Electrical conductivity tests showed that the conductivity of the carbon powder solution decreases with increasing heating temperature. The ACKS sample without heat treatment exhibited the highest conductivity value (68.2 µS·cm⁻¹), whereas the ACKS C sample showed the lowest conductivity value (24.4 µS·cm⁻¹) due to the stabilization of the carbon structure and the loss of polar groups.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	amorphous carbon, palm kernel shell charcoal, heating temperature, electrical conductivity, physicochemical properties, karbon amorf, arang cangkang kelapa sawit, suhu pemanasan, konduktivitas listrik, sifat fisikokimia.
Subjects:	Q Science > QC Physics > QC451 Spectroscopy Q Science > QC Physics > QC457 Infrared technology. Q Science > QC Physics > QC610.3 Electric conductivity
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45101-(S2) Master Thesis
Depositing User:	Gabriella Tiara Permatasari
Date Deposited:	27 Mar 2025 07:15
Last Modified:	27 Mar 2025 07:34
URI:	http://repository.its.ac.id/id/eprint/118996

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