1Post Graduate Teaching Department of Chemistry, Rashtrasant Tukdoji Maharaj Nagpur University, Campus, Nagpur 440 033, India
2National Environmental Engineering Research Institute, Council of Scientific and Industrial Research, Nehru Marg, Nagpur 440 020, India
Adv. Mater. Lett., 2015, 6 (1), pp 59-67
DOI: 10.5185/amlett.2015.7592
Publication Date (Web): Dec 28, 2014
Copyright © IAAM-VBRI Press
E-mail: rsdongre@hotmail.com
The adsorption of poisonous lead (II) from aqueous solution using graphite doped chitosan composite as an adsorbent has been carried out. The characterizations of graphite doped chitosan composite were studied by using instrumental techniques like X-ray diffraction, Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. The XRD study showed the crystalline nature of synthesized graphite doped chitosan composite with sharp and symmetric peaks. SEM morphology showed wide range of porosity that could achieve high lead (II) sorption. FTIR investigation evidenced that the presence of C=O and –OH functionalities participated in lead (II) adsorption from aqueous solution. The influence of pH, contact time, dose of adsorbent and initial metal ion concentration on removal of lead (II) was investigated. The adsorption efficiency was found to be pH dependent and the maximum 98% lead (II) removal observed at optimum pH 6. Results showed that the maximum adsorbent capacity was at dosage of 1g/L and equilibrium time achieved at 120 min. Equilibrium adsorption experiments were studied at room temperature and data obtained fitted to Langmuir and Freundlich adsorption isotherm. Langmuir model had higher R2 values of 0.943 with sorption capacity of 6.711 mg of adsorbate/g of adsorbent which fitted the equilibrium adsorption process more than the Freundlich model. The adsorption kinetics was analyzed using pseudo first order, pseudo-second order and intraparticle diffusion models. Experimental data better fitted with pseudo second order kinetics model. The results illustrated that graphite doped chitosan composite has the potential to remove lead (II) ions from aqueous solution.
Perspectives on Published Energy Sources and Smart Energy Supplies
State of Art Review on Nanobubbles
Eggshell Membrane Assisted CdS Nanoparticles for Manganese Removal in Water Treatment
Green Chemistry Synthesis of Nano-Hydroxyapatite using Natural Stabilisers
Structural, Optical and Electrical Properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 Synthesized using Sol-Gel Method
Phase Change Materials Reinforced with Aluminium Foam for Latent Heat Storage
Influence of Manganese and Copper Doping on Structural and Optical Properties of Chromium Oxide Nanoparticles
Understanding of intriguing metal to semiconductor transition in Ni0.5Zn0.5Fe2O4 nanoparticulates
Flaw Resistance and Mode - I Fracture Energy Redistribution in Bamboo - A Correlation
COVID-19: A Significant Revival Approach - Concurrent Case Study in India
Recent Advances in Biochar Modification for Energy Storage in Supercapacitors: A Review
Viral Evolution of Multiple Coronavirus Genomes on Genomic Index Maps
Solution Combustion Synthesis and Energy Transfer in LaMgAl11O19:Tb3+/Sm3+ Tunable Phosphor
Influence of Fe3O4 and CTABr on the Rate of Degradation of Methylene Blue by H2O2
Effect of Sulfurization Temperature on RF Sputtered MoS2 Thin Film
Fatigue Analysis for Fe-34.5Mn-l0Al-0.76C Tidal Turbine Blades using Rainflow Algorithm
Modelling for the Study of Thermoelastic Properties of Nanoparticles
Potato Starch Edible Films as Environmentally Friendly Carriers for Model Drug: In vitro Release Study