Green synthesis of sulfur nanoparticles using Rosmarinus officinalis leaves extract and nematicidal activity against Meloidogyne javanica

Abstract

Sulfur nanoparticles (S-NPs) were prepared using rosemary (Rosmarinus officinalis) leaves aqueous extract and sodium thiosulfate pentahydrate (Na2S2O3.5H2O) at room temperature. The S-NPs were characterized by UV–visible spectrophotometer, Fourier transform infrared (FT-IR), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), and X-ray diffraction (XRD) techniques. The sulfur nanoparticles are crystalline in nature with average size of 40 nm. The morphology of S-NPs could be controlled by tuning the amount of rosemary leaves aqueous extract and sulfur ions. The cytotoxic effects of the S-NPs on hatching of second stage root-knot and mortality of second stage of root-knot nematode (Meloidogyne javanica) were tested. These results confirmed that the S-NPs synthesized using rosemary leaves aqueous extract and could possibility be used as nematicidal to manage M. javanica infestation.

Helianthus annuus assisted green synthesis of Co3O4 and Ag‐Co3O4 and evaluation of their catalytic activities toward photodegradation of crystal violet dye

“…20 In this way, Jinlong and co-workers 21 More recently, the green synthesis of metal oxides and hetero structured materials has received much attention due to its environmentally friendly as well as economical point of view. [26][27][28][29][30] In green synthesis various biological (plants and animals) substrates are employed as reducing and stabilizing agents. For instance, Zhao and co-workers 31 34 Fan et al 35 and Han et al 36 under visible irradiation.…”