Kumalasari, Janice Anggraini Evy (2025) Optimasi Sintesis Nanopartikel Tembaga Oksida (CuONPs) dengan Metode Sonokimia Menggunakan FC-CCD RSM dan Evaluasi Aktivitas Antioksidan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Nanopartikel tembaga oksida (CuONPs) berpotensi sebagai antibakteri dan antioksidan pada bidang biomedis serta pengolahan lingkungan. CuONPs sering mengalami oksidasi dan aglomerasi sehingga ukuran serta kestabilannya tidak seragam. Penelitian ini bertujuan menghasilkan CuONPs yang stabil serta aktif melalui pendekatan sonokimia dengan kontrol suhu, waktu sonikasi, dan volume polietilen glikol (PEG). Penelitian menggunakan CuSO₄ sebagai prekursor, NaBH₄ sebagai pereduksi, dan polietilen glikol(PEG) sebagai penstabil. Pendekatan Response Surface Methodology dengan rancangan Face-Centered Central Composite Design (FC-CCD RSM) digunakan agar kondisi sintesis optimum tercapai. Hasil menunjukkan volume PEG memberikan pengaruh signifikan pada nilai absorbansi dengan nilai p sebesar 0,0337, sedangkan suhu dan waktu menunjukkan pengaruh saat berinteraksi dengan variabel lain. Model polinomial orde tiga memiliki nilai R² sebesar 0,95 sehingga model dapat memprediksi hasil dengan akurasi tinggi. Spektrum UV-Vis menunjukkan puncak serapan pada 290 nm sebagai ciri khas CuONPs. Hasil PSA menunjukkan ukuran rata-rata partikel 55,47 nm pada skala nano. Nilai zeta potensial tercatat sebesar −8,695 mV yang menunjukkan kestabilan koloid rendah. Analisis FESEM menunjukkan morfologi partikel sferis dengan ukuran 15 hingga 119 nm. Spektrum FTIR menunjukkan pita serapan Cu–O dan gugus PEG pada permukaan partikel. Nilai IC₅₀ sebesar 77,13 µg/mL menunjukkan aktivitas antioksidan sedang. Penelitian ini menunjukkan CuONPs hasil sintesis memiliki potensi sebagai agen antioksidan serta material nano berkelanjutan.
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Copper oxide nanoparticles (CuONPs) possess potential as antibacterial and antioxidant agents in the biomedical field and environmental processing. CuONPs often undergo oxidation and agglomeration, resulting in inconsistent particle sizes and stability. This study aims to produce stable and active CuONPs through a sonochemical approach with controlled temperature, sonication time, and polyethylene glycol (PEG) volume. The synthesis employed CuSO₄ as the precursor, NaBH₄ as the reducing agent, and polyethylene glycol (PEG) as the stabilizer. The Response Surface Methodology with a Face-Centered Central Composite Design (FC-CCD RSM) was applied to achieve the optimum synthesis conditions. The results showed that PEG volume significantly influenced the absorbance value with a p-value of 0.0337, while temperature and sonication time exhibited effects when interacting with other variables. The third-order polynomial model obtained an R² value of 0.95, indicating high predictive accuracy. The UV-Vis spectrum exhibited an absorption peak at 290 nm, which is characteristic of CuONPs. PSA analysis revealed an average particle size of 55.47 nm within the nanoscale range. The zeta potential was recorded at −8.695 mV, indicating low colloidal stability. FESEM analysis displayed spherical particle morphology with sizes ranging from 15 to 119 nm. FTIR spectra showed characteristic Cu–O absorption bands and PEG functional groups on the particle surface. An IC₅₀ value of 77.13 µg/mL indicated moderate antioxidant activity. This study demonstrates that the synthesized CuONPs have potential as antioxidant agents and sustainable nanomaterials.
Item Type: | Thesis (Other) |
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Uncontrolled Keywords: | CuONPs, PEG, sonokimia, FC-CCD RSM , antioksidan, CuONPs, PEG, sonochemical, FC-CCD RSM, antioxidant |
Subjects: | Q Science > QD Chemistry > QD1 Oxidation-reduction reaction. Q Science > QD Chemistry > QD75.2 Chemistry, Analytic |
Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis |
Depositing User: | Janice Anggraini Evy Kumalasari |
Date Deposited: | 05 Aug 2025 09:59 |
Last Modified: | 05 Aug 2025 09:59 |
URI: | http://repository.its.ac.id/id/eprint/127450 |
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