Development of a new, cheap, efficient, and ecofriendly adsorbents become important demand for the treatment of waste water, so nano polyaniline walnut husks is considered a good choice. A sample of nanocomposite was prepared from polyaniline. The prepared sample was characterized using various characterization techniques such as FT-IR, SEM and XRD analysis. The SEM analysis of sample shows nanostructures with pore ranging (2-100 nm(. The adsorptive properties of this sample were examined by eliminating E102 dye from aqueous solution. Amount Experimental methods were performed at room temperature (25⁰C) to study the different variables which affect the adsorption process like: nanocomposite amount, initial concentration of dye, and contact time. The experimental results at equilibrium were determined using Langmuir and Freundlich adsorption isotherms and show best fitted with Langmuir model which reveal that the adsorption of E102 dye by the nanocomposite is monolayer adsorption. Kinetics aspects was also investigated by evaluating parameters from pseudo-first and pseudo-second order reaction equations on adsorption rate which show good fitting with both kinetics equations, but pseudo-second order equation was the best to describe the kinetics parameters.
This paper describes the synthesis of CdS nanoparticles by sol-gel route using organic molecules as gelatin media. At70ᵒC the CdS nanoparticles are formed with particle size 75.28nm.The nanoparticles are characterized by XRD,SEM, AFM and FTIR. The effect of nanoparticles on activity of liver enzymes (GPT and GOT)is also studied by using different concentration of NPs. It is found that the activity of GPT and GOT enzymes increases with decreases in nano particles concentrations and decreases in inhibition percentage. The greater activation of nano was demonstrated at concentration (10-1 M).
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