Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Konversi JURNAL REKAYASA KIMIA & LINGKUNGAN
Maharani, Hijria Putri
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Education Energy Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Biosynthesis of Silver Nanoparticles Using Black Pepper (Piper nigrum L.) Essential Oil as a Bioreductor Erliyanti, Nove Kartika; Wira, Guardiola Rosa; Maharani, Hijria Putri; Pujiastuti, Caecilia; Panjaitan, Renova
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.44324

Abstract

The development of environmentally friendly methods for nanoparticle synthesis has gained increasing attention. Black pepper essential oil contains secondary metabolites that act as both reducing and stabilizing agents, making it a promising green alternative in silver nanoparticle (AgNP) synthesis. This study aims to investigate the effect of pH and synthesis time on the yield and characteristics of AgNP synthesized using black pepper essential oil via the sonochemical method. AgNP synthesis was carried out using the sonochemical method by adding black pepper essential oil to a silver nitrate solution. AgNP were synthesized at pH levels of 8, 9, and 10 with reaction times of 30, 60, and 90 minutes. The obtained AgNP were analyzed for yield, UV-Vis absorbance, and particle size distribution. The results demonstrated that yield increased with higher pH and longer synthesis time, reaching a maximum of 58.12% at pH 10 and 90 minutes. UV-Vis analysis confirmed the presence of AgNP with absorption peaks between 400500 nm. The particle size ranged from 9.66 to 348 nm, indicating size variability influenced by synthesis conditions. These findings highlight the potential of black pepper essential oil as a green and sustainable approach for AgNP synthesis, offering eco-friendly benefits for various applications.
Sonochemical-assisted biosynthesis of silver nanoparticles using cymbopogon nardus L. essential oil: advanced process optimization through response surface methodology Wira, Guardiola Rosa; Maharani, Hijria Putri; Erliyanti, Nove Kartika; Panjaitan, Renova; Pujiastuti, Caecilia
Konversi Vol 14, No 1 (2025): APRIL 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v14i1.21906

Abstract

This research investigates the fabrication and characterization regarding silver nanoparticles (AgNPs) utilizing essential oil derived from citronella leaves (Cymbopogon nardus L.) as a bioreductant. The synthesis method employed is sonochemistry, with variations in pH levels to determine optimal conditions for AgNPs yield. The use of essential oil as a bioreductant offers eco-friendly advantages and high efficiency in reducing metal ions. The results indicate that the highest yield of 8.67% was achieved at pH 9.0280 and 59.7190 minutes of sonochemical processing. Statistical optimization of processing parameters was conducted to maximize the yield of AgNPs, with the optimization process analyzed using Response Surface Methodology (RSM). The sequence of experimental runs, condition variations, and obtained results were determined using the Central Composite Design (CCD). The model demonstrates a strong correlation with the experimental data, exhibiting an adjusted R² value of 0.9684. A high F-value of 30.61 and a low p-value of 0.0009 suggest that the regression model is statistically significant and effectively accounts for variations in AgNPs yield. The lack-of-fit value for the model is 0.0359, indicating no significant discrepancy between the experimental data and the model's predicted values. The successful formation of AgNPs was confirmed, with absorption peaks observed within the 400–450 nm range.
Co-Authors Erliyanti, Nove Kartika Panjaitan, Renova Pujiastuti, Caecilia Wira, Guardiola Rosa