Suyatno Sutoyo, Andika Pramudya Wardana, Leny Yuanita, Fifin Setiani
Copper nanoparticles (CuNPs) can be synthesized using bioreductor from plant extracts containing phenolic compounds. This research aims to study the potential of Dieng Carica (Carica pubescens) seed extract as a bioreductor for the synthesis of copper nanoparticles. CuNPs was synthesized by reducing copper (II) sulfate solution with water extract from C. pubescens seeds, using a volume ratio of 1:3 at pH 10. Characterization of CuNPs was carried out using a UV-Vis spectrophotometer, FTIR spectrophotometer, and Particle Size Analyzer (PSA). The results showed that the synthesized copper nanoparticles had a maximum UV-Vis absorption wavelength of 535 nm. The IR spectrum showed the presence of OH groups (3278.4 cm-1), carbonyl (1651.4 cm-1), aromatic C=C (1541.0 cm-1) and Cu-O (616.4 cm-1). The PSA measurement results showed an average particle size of 14.49 nm with a Poly Dispersity Index (PDI) value of 0.1943. © 2025 Author(s).
Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Surabaya, Surabaya, 60231, Indonesia
