Development of Magnetic Nanoparticles from Poplar Sawdust for Removal of Pesticides from Aqueous Solution

  • Arunima Nayak Department of Chemistry, Graphic Era (Deemed to be University), Dehradun, India
  • Brij Bhushan Department of Chemistry, Graphic Era (Deemed to be University), Dehradun, India, Department of Chemical EngineeringUniversitat Politechnica Catalunya, Barcelona, Spain
  • Pradeep Kumar Sharma Department of Chemistry, Graphic Era (Deemed to be University), Dehradun, India
  • Vartika Gupta Department of Chemistry, Graphic Era (Deemed to be University), Dehradun, India
Keywords: Pesticides, Sawdust, Magnetic Nanoparticle, Adsorption Isotherm, Adsorption Kinetics


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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