Sintesis Tembaga Nanopartikel Berbasis Kolagen Sebagai Agen Pereduksi dengan Bantuan Iradiasi UV

Firena, Herlin (2026) Sintesis Tembaga Nanopartikel Berbasis Kolagen Sebagai Agen Pereduksi dengan Bantuan Iradiasi UV. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Nanopartikel tembaga (CuNPs) dapat diaplikasikan dalam berbagai bidang. Sintesis pembentukan CuNPs seringkali dengan agen pereduktor kimia yang bersifat toksik seperti NaBH4 serta ukuran nanopartikel yang beragam. Karena itu, solusi yang diajukan adalah pembentukan CuNPs dengan metode green synthesis, yaitu penggunaan reduktor biokimia yang ramah lingkungan seperti kolagen. Pada penelitian ini, dilakukan pembentukan CuNPs dengan kolagen sebagai agen pereduktor serta bantuan iradiasi UV dalam proses reduksi. Penambahan stabilizer Polivinilpirolidon (PVP) dilakukan untuk mencegah aglomerasi dan oksidasi pada CuNPs. Adapun variasi yang dilakukan, seperti konsentrasi prekursor Cu(NO3)2, massa reduktor kolagen, pH, dan volume stabilizer PVP yang bertujuan untuk mengetahui kondisi terbaik dalam pembentukan CuNPs. Kondisi terbaik pembentukan akan dianalisis dengan spektrofotometer UV-Vis sebagai konfirmasi awal terbentuknya CuNPs, yaitu pada rentang 500 – 600 nm dan selanjutnya akan dikarakterisasi dengan X-Ray Diffraction (XRD), Particle Size Analysis-ZETA (PSA-ZETA), dan Transmission Electrom Magnetic (TEM) untuk kondisi terbaik. Hasil yang didapat adalah CuNPs berupa larutan berwarna ungu dengan puncak absorbansi 550 nm. Analisis XRD menunjukan fase kristal Cu dan difraksi minor CuO. Sementara ukuran partikel dari PSA-ZETA memiliki rata-rata 486,3 dan 358,8 nm dan stabilitas yang baik yaitu -30,83 dan -34,27 mV, sedangkan berdasarkan TEM bentuk partikel adalah spherical dengan diameter rata-rata 17,5 ± 1,05 nm.
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Copper nanoparticles (CuNPs) can be applied in various fields. The synthesis of CuNPs often employs toxic chemical reducing agents such as NaBH4 and results in diverse nanoparticle sizes. Therefore, the proposed solution is the formation of CuNPs through a green synthesis method, namely the use of environmentally friendly biochemical reducing agents such as collagen. In this study, CuNPs were synthesized using collagen as a reducing agent with the assistance of UV irradiation in the reduction process. The addition of Polyvinylpyrrolidone (PVP) as a stabilizer was carried out to prevent agglomeration and oxidation of CuNPs. Various parameters were varied, including precursor concentration of Cu(NO3)2, collagen reducing agent mass, pH, and PVP stabilizer volume, aiming to determine the optimal conditions for CuNPs formation. The optimal formation conditions were analyzed using a UV-Vis spectrophotometer as an initial confirmation of CuNPs formation, indicated by an absorption peak in the range of 500–600 nm. Subsequently, the optimal sample was characterized by X-Ray Diffraction (XRD), Particle Size Analysis-ZETA (PSA-ZETA), and Transmission Electron Microscopy (TEM). The results showed that the CuNPs appeared as a purple solution with an absorbance peak at 550 nm. XRD analysis revealed the presence of Cu crystalline phases and minor diffraction of CuO. Meanwhile, particle size analysis using PSA-ZETA showed average sizes of 486,3 and 358.8 nm with PDI values of 0.72 and 0.8, and good stability with zeta potential values of -30,83 and -34.27 mV. Furthermore, TEM analysis showed that the particles were spherical with an average diameter of 17.5 ± 1.05 nm.

Item Type: Thesis (Other)
Uncontrolled Keywords: Green Synthesis, Kolagen, Nanopartikel, Reduksi, Tembaga, Collagen, Copper, Green Synthesis, Nanoparticles, Reduction
Subjects: Q Science > QD Chemistry > QD1 Oxidation-reduction reaction.
Q Science > QD Chemistry > QD63 Extraction
Divisions: Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User: Herlin Firena
Date Deposited: 05 Aug 2026 06:06
Last Modified: 05 Aug 2026 06:06
URI: http://repository.its.ac.id/id/eprint/143953

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