Synthesis and characterization of Aloe-vera-poly(acrylic acid)-Cu-Ni-bionanocomposite: its evaluation as removal of carcinogenic dye malachite green

A semi interpenetrating polymer network (SIPN) of Aloe-vera-poly(acrylic acid) and its nano-composite were synthesized by free radical polymerisation method. Effect of various chemical properties on percentage swelling of nano-composites was investigated. Nanoparticles in SIPN was characterised by FTIR, Field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA) and electron dispersive spectroscopy (EDS). Synthesized nanocomposite was evaluated as an adsorbent for the adsorption of carcinogenic dye malachite green. Optimised condition for removal of malachite green dye from synthesized nanocomposite was pH 10, time 16 h, dye concentration 10 ppm and adsorbent dosage 0.05g. Maximum dye removal exhibited by the synthesized nano composite was 98.2%. Dye adsorption isotherm and kinetics were best explained through Freundlich adsorption isotherm and pseudo second order model, exhibiting its correlation coefficient (R-2)0.99569 and 0.99271. Thus, synthesized nano-composite was utilised as an efficient device for dye sorption.

Automated summary

A semi interpenetrating polymer network (SIPN) of Aloe-vera-poly(acrylic acid) and its nano-composite were synthesized, and the effect of various chemical properties on the swelling of the nano-composites was investigated. The synthesized nanocomposite showed excellent adsorption performance and can be utilized as an efficient device for dye sorption.