Development of Magnetic Nanoparticles from Poplar Sawdust for Removal of Pesticides from Aqueous Solution
Keywords:
Pesticides; Sawdust; Magnetic Nanoparticle; Adsorption Isotherm; Adsorption KineticsAbstract
A magnetic nano-adsorbent from widely available agricultural waste by-product viz. poplar sawdust (MNPSD)
was successfully prepared by applying chemical co-precipitation method and was subsequently characterized for
its unique properties of high surface area and nano-size particles. Adsorption studies were conducted in
laboratory batch mode to evaluate its capacity to remove methoxychlor and methylparathion. Methoxychlor and
methylparathion are organic based pollutants that are detected in the wastewaters due to their excessive usage in
agriculture. The maximum adsorption efficiency of MNPSD for methoxychlor and atrazine were determined to
be 163.9 mg/g and 77.5 mg/g respectively at contact time of 55min and pH of 2. Equilibrium, kinetic and
thermodynamic studies further revealed the suitability of MNPSD for use as a cost effective, environmental
friendly adsorbent for wastewater treatment especially for removal of hazardous pesticides.
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