Sintesis dan Karakterisasi Struktur Senyawa Karbon dari Pemanasan Gula Siwalan

Maghfirohtuzzoimah, Vera Laviara (2019) Sintesis dan Karakterisasi Struktur Senyawa Karbon dari Pemanasan Gula Siwalan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian yang berjudul “Sintesis dan Karakterisasi Struktur Senyawa Karbon dari Pemanasan Gula Siwalan” telah dilakukan dengan tujuan menganalisis struktur morfologi, fasa yang terbentuk, gugus fungsi, dan distribusi ukuran partikel dari pemanasan gula siwalan. Bahan dasar yang digunakan adalah gula siwalan dari Kabupaten Lamongan. Gula siwalan dipanaskan dengan temperatur dasar 250°C dan dipanaskan kembali dengan variasi temperatur 400°C, 500°C, 600°C, 700°C, dan 1000°C. Hasil pemanasan gula siwalan dikarakterisasi dengan XRD, DSC-TGA, FTIR, SEM-EDX, dan PSA. Pola difraksi pada temperatur 250°C, 400°C, dan 500°C dengan satu puncak lebar diantara 2θ =10°-30° yang teridentifikasi sebagai karbon amorf dan fasa grafena oksida tereduksi mulai terbentuk pada temperatur 600°C, 700°C dan 1000°C yang mempunyai dua puncak lebar pada 2θ =~23° dan ~43°. Ikatan molekular yang terkandung didalam gula siwalan yang dipanaskan memiliki ikatan utama heksagonal C=C dan ikatan lain meliputi C-H, C=O, C-O, dan O-H. Struktur morfologi yang terbentuk dari pengujian SEM-EDX mengindikasikan struktur berupa lempengan serta komponen penyusun utama berupa karbon dan oksigen. Distribusi ukuran partikel semakin kecil dalam medium pendispersi akuades, sedangkan distribusi ukuran partikel tidak beraturan dalam medium pendispersi dimetil sulfoksida.
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The research entitled “Synthesis and Structural Characterization of Carbon Compounds from Heating Palm Sugar” was conducted to analyze the structure, morphology, phase formation, molecular bonding, and particle size distribution of carbon compounds produced by heating palm sugar. The raw material used was palm sugar obtained from Lamongan District. The samples were initially heated at 250°C and subsequently reheated at 400°C, 500°C, 600°C, 700°C, and 1000°C. The resulting products were characterized using DSC-TGA, XRD, FTIR, PSA, and SEM-EDX. The XRD diffraction patterns of samples heated at 250°C, 400°C, and 500°C exhibited a broad peak at 2θ = 10°–30°, indicating the presence of amorphous carbon, while samples heated at 600°C, 700°C, and 1000°C showed the formation of a reduced graphene oxide phase, characterized by two broad peaks at approximately 2θ = 23° and 43°. FTIR analysis revealed that the dominant molecular bond was C=C, along with the presence of C–H, C=O, C–O, and O–H functional groups. SEM-EDX observations showed slab-like morphologies composed primarily of carbon and oxygen. Increasing the heating temperature resulted in a smaller particle size distribution in water as the dispersing medium, whereas a more irregular particle size distribution was observed when dimethyl sulfoxide (DMSO) was used as the dispersing medium.

Item Type:	Thesis (Other)
Additional Information:	RSFi 546.681 Mag s-1 2019
Uncontrolled Keywords:	Grafena Oksida Tereduksi, Gula Siwalan, Proses Pemanasan
Subjects:	Q Science Q Science > Q Science (General) Q Science > QC Physics Q Science > QC Physics > QC271 Temperature measurements Q Science > QC Physics > QC457 Infrared technology. Q Science > QC Physics > QC 611.97.T46 Temperature effects. Including transition temperature
Divisions:	Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Vera Laviara Maghfirohtuzzoimah
Date Deposited:	20 Jul 2026 02:08
Last Modified:	20 Jul 2026 02:08
URI:	http://repository.its.ac.id/id/eprint/65864

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