Optimasi Sintesis Cu2O Nanopartikel Menggunakan BBD-RSM

Hasna, Naila Fauziatul (2026) Optimasi Sintesis Cu2O Nanopartikel Menggunakan BBD-RSM. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Nanopartikel tembaga(I) oksida (Cu2ONPs) merupakan semikonduktor tipe-p dengan celah pita energi 2,0 eV yang memiliki potensi besar dalam berbagai aplikasi. Penelitian ini bertujuan untuk sintesis Cu2ONPs melalui metode reduksi kimia menggunakan glukosa sebagai agen pereduksi dan trisodium sitrat (TSC) sebagai capping agent, menentukan kondisi operasi optimal menggunakan metode Response Surface Methodology-Box Behnken Design (RSM-BBD), serta karakterisasi Cu2ONPs. Variabel yang dioptimasi meliputi waktu sintesis, massa Cu2O, dan konsentrasi glukosa, dengan respons berupa absorbansi maksimum UV-Vis pada 740 nm. Karakterisasi produk dilakukan menggunakan XRD, FTIR, FESEM, dan PSA. Hasil karakterisasi XRD mengonfirmasi terbentuknya fase Cu2O yang didukung dengan hasil FTIR yang menunjukkan adanya serapan karakteristik Cu(I)–O pada bilangan gelombang 626 cm⁻¹. Karakterisasi PSA mengonfirmasi ukuran Cu2O dalam rentang nano dengan ukuran partikel rata-rata sebesar 66 nm yang didukung dengan citra FESEM. Kondisi optimum sintesis diperoleh pada rentang waktu sintesis 140-150 menit, rentang massa Cu2O 4,5-5 mg, dan rentang konsentrasi glukosa 0,25-0,3 M. Penelitian ini membuktikan Cu2ONPs berpotensi untuk dikembangkan dengan metode dan material ramah lingkungan untuk aplikasi nanomaterial berkelanjutan.
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Copper(I) oxide nanoparticles (Cu2ONPs) are p-type semiconductors with a band gap of 2.0 eV that have significant potential for a variety of applications. This study aimed to synthesize Cu2ONPs via a chemical reduction method using glucose as a reducing agent and trisodium citrate (TSC) as a capping agent, to determine the optimal operating conditions using Response Surface Methodology with Box-Behnken Design (RSM-BBD), also characterize the Cu2ONPs. The optimized variables included synthesis time, Cu2O mass, and glucose concentration, with the maximum UV-Vis absorbance at 740 nm as the response. Product characterization was performed using X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscope (FESEM), and Particle Size Analyzer (PSA). XRD characterization confirmed the formation of Cu2O phase, supported by FTIR results showing a characteristic Cu(I)–O absorption band at 626 cm⁻¹. PSA characterization confirmed that the Cu2ONPs particle size was within the nanoscale range, with an average particle size of 66 nm, supported by FESEM images. The optimum synthesis conditions were achieved at a synthesis time of 140-150 minutes, Cu2O mass of 4,5-6 mg, and glucose concentration of 0,25-0,3 M. This study demonstrates that Cu2ONPs hold strong potential for development using environmentally friendly methods and materials, supporting their application in sustainable nanomaterials.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Cu2ONPs, reduksi kimia, RSM-BBD, Cu2ONPs, chemical reduction, RSM-BBD
Subjects:	Q Science > QD Chemistry > QD75.2 Chemistry, Analytic
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Naila Fauziatul Hasna
Date Deposited:	29 Jul 2026 01:38
Last Modified:	29 Jul 2026 01:38
URI:	http://repository.its.ac.id/id/eprint/139173

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