Abstract
The present study aims to carry out a fast, non-toxic, and single step synthesis approach of PANI/MSNPs. The meso-sorbent showed evidence of highly capturing of extremely toxic chloro-pesticides from aqueous solutions.
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•Synthesis of high surface area mesoporous PANI/MSNPs nano-composite was achieved.•The PANI/MSNPs meso-sorbent showed evidence of highly capturing of extremely toxic chloro-pesticides from aqueous solutions.•The adsorption systems showed functionality in terms of high capacity and stability as the adsorption temperature decreased.
A meso-sorbent silica/polyaniline (MSNPs/PANI) composite was synthesized for the removal of the chloridazon pesticide (n-CLZ) from the aqueous solution. A high adsorption capacity by the n-CLZ molecules could be achieved by the surface-coating functionalization process of a mesoporous silica core by the PANI shell through two consequence steps process in the presence of a cationic surfactant. The formation of the polymeric MSNPs/PANI using MSNPs filler particles in the composite matrix were confirmed and characterized by SEM, HRTEM, XRD, TGA, and FTIR techniques. The removal efficiency of the n-CLZ pesticide from the aqueous solution using the synthesized MSNPs/PANI meso-sorbent was studied by the UV/Vis. Spectrometry and the GC analyses. Freundlich and Langmuir adsorption models were fitted and the thermodynamic parameters were calculated. Our results confirmed that the synthesized MSNPs/PANI meso-sorbent have a good removal efficiency towards n-CLZ pesticide from the aqueous solutions-based on a physical adsorption process.