Application of a new cobalt oxide modified nano-zeolite for removal of methylene blue, methyl green and methyl red dyes

Dyes even in low concentration, not only affect on the visual view of water, but also on the absorption and reflection of sun light and have a negative effect on the bacterial growth and also photosynthesis [1-2]. Therefore it is essential to manage them with an effective and economic method [3]. In this work cobalt oxide modified nano-zeolite was synthesized and characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), Field emission scanning electron microscopy (FESEM) and Energy-dispersive X-ray spectroscopy (EDX) techniques. The prepared nanocomposite was successfully applied for removing some color compounds such as methylene blue, methyl green, and methyl red and also binary dye mixtures.