Optimization of reaction parameters for the green synthesis of zero valent iron nanoparticles using pine tree needles

• Main Authors: Kheshtzar Raziyeh, Berenjian Aydin, Taghizadeh Seyedeh-Masoumeh, Ghasemi Younes, Asad Ali Ghanbari, Ebrahiminezhad Alireza
• Format: Article
• Language: English
• Published: De Gruyter 2019-01-01
• Series: Green Processing and Synthesis
• Subjects: biosynthesis; design of experiments (doe); plant mediated synthesis; optimization; response surface methodology (rsm)
• Online Access: https://doi.org/10.1515/gps-2019-0055
• ISSN: 2191-9550

In the current study, the optimal reaction condition for fabrication of INPs by using pine tree (Pinus eldarica) leaf extract was developed. A fractional factorial design was utilized to screen the effective parameters in the green synthesis reaction, and central composite face design was employed to achieve the optimal reaction condition. Leaf extract and iron precursor concentrations were found to be the most effective parameters for the fabrication of INPs. Physicochemical characteristics of the obtained nanoparticles were evaluated by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), thermogravimetric analysis (TGA), and derivative thermo gravimetric (DTG). The prepared particles were found to be zero-valent iron nanoparticles without any iron oxide impurities. Nanoparticles were spherical in shape with diameters ranging from 8 nm to 34 nm with a mean particle size of 18 nm. The fabricated particles were amorphous with a low magnetization value of 33 memu/g.