Open AccessCarpogenic ZnO nanoparticles: amplified nanophotocatalytic and antimicrobial action
Author(s) -
Ahmad Khuram Shahzad,
Bibi Jaffri Shaan
Publication year - 2019
Publication title -
iet nanobiotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 38
eISSN - 1751-875X
pISSN - 1751-8741
DOI - 10.1049/iet-nbt.2018.5006
Subject(s) - wurtzite crystal structure , nanoparticle , materials science , fourier transform infrared spectroscopy , photocatalysis , nuclear chemistry , scanning electron microscope , nanotechnology , nanobiotechnology , phytochemical , calcination , chemical engineering , chemistry , organic chemistry , catalysis , biochemistry , zinc , engineering , composite material
This investigation has for the first time utilised environmental resource Prunus cerasifera seed extract phytochemicals for the green synthesis of carpogenic ZnO nanoparticles (NPs). Spherical morphology and size range of 56.57–107.70 nm at variable calcination temperatures without the use of any external reducing agent was obtained. The synthesised NPs exhibited hexagonal wurtzite geometry with an average crystal size 5.62 nm and a band gap of 3.4 eV. Carpogenic NPs were investigated for optical, compositional, morphological, and phytochemical make up via ultraviolet spectroscopy (UV–Vis), Fourier transform infrared analysis, X‐ray powder diffraction, scanning electron microscopy, and gas chromatography and mass spectrometry. Carpogenic NPs degraded methyl red up to 83% with pseudo‐first‐order degradation kinetics ( R 2 = 0.88) in 18 min signifying their remediation role in environment in conformity with all principles of green chemistry. Photocatalytic assays were performed in direct solar irradiance. Nine pathogens of biomedical and agricultural significance having multi‐drug resistance were inhibited in vitro via the Kirby–Bauer disc diffusion assay. The enhanced photocatalytic and antimicrobial inhibition not only makes carpogenic ZnO NPs a future photo‐degradative candidate for environmental remediation but also a nanofertiliser, nanofungicide, and nanobactericide synthesised via bioinspired, biomimetic, green, and unprecedented route.