Properties of organic green spinach dye as a substitute for harmful chemical green dye

Preparation of an environmentally friendly organic green dye, an alternative to the harmful industrial chemical green dye which is used to optical and industrial applications. The dye is extracted from spinach plant by solvent extraction process. The optical and morphological characterizations of green spinach dye are measurements, the absorbance spectrum of green spinach accord in visible region and the dye have two peaks at wavelengths (λ₁=440 nm, λ₂=685 nm) where the band gap energy is E_g=2.81 eV at λ₁ and the refractive index of spinach dye (n=1.36682). The fluorescence spectrum show the maximum absorption wavelength λ₁, λ₂ shifted towers red region about Δλ₁=90 nm and Δλ₂=195 nm respectively, and that accentuated the absorption region are extend to the dye. Also, the average particles size of spinach measured by Atomic Force Microscopy (AFM)=59.587 nm. These characterizations obtained the green dye can used in optical and industrial applications and made it a safer alternative for the toxic chemical green dye and thus protecting the environment by replacing polluting industrial chemical and their consequences. (paper)