Removal of methylene blue from aqueous solution using Agricultural waste-based nanocomposite superabsorbent

A novel wheat straw-g-poly(methacrylic acid)/clinoptilolite fast swell nanocomposite superabsorbent was synthesized by graft copolymerization with wheat straw powder and methacrylic acid in aqueous solution. The prepared nanocomposite superabsorbent showed good swelling and adsorption characteristics which were highly dependent on the chemical composition of the polymer matrix, weight percent of nano particles of natural zeolite therein, reaction temperature, pH and ionic strength of the immersion medium. The nanocomposite superabsorbent was characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The amount of adsorbed cationic dye (i.e. methylene blue) was increased around 65 % after 10 minutes when the nanocomposite structure was applied

کلیدواژه ها:

Clinoptilolite ، Nano composite ، Superabsorbent ، Agricultural waste ، Methylene blue