Synthesis of ZnO Nanoparticles by Precipitation Method with Their Antibacterial Effect
ABSTRACT: The aim of this
study was to synthesize and characterize Zinc oxide nanoparticles (ZnO-NPs)
prepared by precipitation method. Zinc nitrate and sodium hydroxide was used as
starting materials with biopolymer pectin as capping agent. ZnO-NPs were
synthesized at three levels of temperatures (60, 80 and 100 °C) without or with
calcinations (500 °C). Particle size analyzer (PSA) analysis results showed
that the samples without calcinations (T60, T80 and T100) having an average
particle size respectively 105.13, 78.53, and 76.43 nm, whereas at the samples
by calcination (T60C, T80C and T100C) each have average particle size of 88.73,
44.30 and 543.77 nm. The results showed that preparation of ZnO-NPs by using
heating at 80 °C followed with calcinations at 500°C (T80C) produced the
smallest size. T80C samples further were analyzed using XRD, SEM and the
antimicrobial activity compared with the ZnO-NPs commercials. XRD analysis
confirmed that ZnO-NPs were successfully obtained and have form of pure
nanostructure. SEM analysis showed that ZnO-NPs obtained has a spherical shape.
Furthermore, this ZnO-NPs (T80C) has a better antimicrobial activity compared
than commercial ZnO-NPs in market.
Author: Muhammad Fajri Romadhan,
Nurgaha Edhi Suyatma, and Fahim Muchammad Taqi
Journal Code: jpkimiagg160083
