A Comparison between Chemical Synthesis Magnetite Nanoparticles and Biosynthesis Magnetite

Table 1

The yield of magnetites prepared at different temperatures and their crystallite size and particle size distribution.

Sample	𝑇 (K)	FWHM (311)	Crystallite (nm); size (XRD)	Particle size distribution; (SEM)	Yield (%)
A1	273	0.2362	35.1	43–143	86
A2	283	0.3542	23.2	40–114	95
A3	293	0.4723	17.6	38–91	97
A4	303	0.5314	16.5	30–57	93
MTB	—	0.471	17.6	35–120	—