Adsorptive Removal of Lead and Cadmium Ions using Cross-Linked CMC Schiff Base: Isotherm, Kinetics and Catalytic Activity

Abstract

Water plays a vital role to human and other living organisms. Due to the effluent coming from chemical industries, the industrial activity, contamination of ground water level is goes on increasing nowadays. Therefore, there is a need to develop technologies that can remove toxic pollutants in wastewater. Hence the cross linked Carboxymethyl chitosan(CMC)/ 2,3-dimethoxy Benzaldehyde Schiff base complex has been synthesized and characterized by using FT-IR and SEM analysis. All these results revealed that cross linked Schiff base has formed with high adsorption capacity. The prepared effective adsorbent used for the removal of heavy metals like lead (II) and cadmium (II) ions from aqueous solution and the adsorption data follow the Freundlich model, which follows pseudo first order kinetics. Effect of various parameters like solution pH, adsorbent dose and contact time for the removal of heavy metals has been studied. The synthesized sample undergoes catalytic oxidation process significantly at 24 hrs. The results showed that cross linked Schiff base is an effective, eco-friendly, low-cost adsorbent.

Adsorption Isotherms of Lead Ion by Chitosan From Shrimp Shell

“…where Cmax (mg g -1 ) was the maximum amount of metal ions adsorbs per unit weight of adsorbent to form a complete monolayer, Ceq (mg L -1 ) is the equlibrium concentration of the solution and Cads (mg g -1 ) (Moganavally,et,al, 2015) RESULT AND DISCUSSION Chitosan was a biopolymer which was used to adsorb lead metal from solution through the physic and chemical mechanism. Polysaccharide such as hydroxyl and amine from chitosan was the functional groups which could be bounding the metal ion (Younes & Rinaudo, 2015).…”

“…This method is based on relationship between of amount beam energy which adsorb by lead ion from sample (Sikanna, 2015). Parameters for determined the optimum adsorption was depend on pH solution at constant temperature, concentration metal ion and adsorbent (Moganavally et al, 2015).…”

Column Adsorption Technique for the Removal of Pb+2 Ions by using: Sugarcane Leaves (SL)

“…has been a major fear for chemists and eco-friendly activitist. 1 The level of heavy metals like Hg, Cr, Cd, Pb, Zn, discharge from industries, factories or domestic waste is becoming progressively increasing. The disposed huge amount of toxic heavy metals in the environment, especially in water bodies, which directly or indirectly contact ground water.…”

Synthesis of C–4–Allyloxy–3 Methoxyphenylcalix[4] resorcinarene from Vanillin and Its Application as Adsorbent of Pb(II) Metal Cation

“…Therefore, it is necessary to treat waste containing Pb(II). Many methods have been developed to process the contaminated waste into an acceptable limit quality of waste water, such as coagulation 4,5 , electrodialysis 6,8 and adsorption 9,10 . Adsorption has been shown to be an economically practicable alternative method for lead removal from wastewater 11 .…”