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- Title
ADSORPTION OF CU(II) IONS FROM AQUEOUS SOLUTION ONTO POLYMER BASED N2 ACTIVATED CARBON PREPARED FROM WASTE COMPACT DISCS (CD's) AND DIGITAL VERSATILE DISCS (DVD's).
- Authors
Arokiasamy, David Premkumar; Kaliyaperuma, Ramesh; Thananjayan, Kaliyappan; Arumugam, Rajappa
- Abstract
The aim of this study is to evaluate adsorption isotherms, kinetics and thermodynamic parameters of Cu(II) ions from aqueous solutions through adsorption technique using activated carbon prepared fromwaste DVDs and CDs by using tubular furnace carbonization and N2 activation method. The prepared carbon designated as Polymer based DVD/CD Carbon (PDC Carbon). Experiments were carried out in a batch process. Effect of pH, activated carbon dosage and contact time with different initial Cu(II) ion concentrations were investigated. Adsorption of Cu(II) ion from aqueous solution onto the adsorbent was investigated by taking different initial concentrations at 305, 315, 325 & 335 K temperatures. Consequences obtained from the effect of initial concentrations and temperatures were discussed in detail. Kinetic data were fitted with Lagergren, Ho and Webber-Morris equations for pseudo first order and pseudo second order and intra particle diffusion models respectively. According to Mean of Sum of Squired Error (MSSE) tool, the adsorption followed pseudo second order kinetic equation. The equilibrium data were showed with Langmuir, Freundlich, Temkin and Dubinin-Radush-Kevich isotherm equations. Implications obtained from the isotherm parameters were discussed. Thermodynamic parameters for such as ΔH°, ΔS° and ΔG° were determined by means of Van't Hoff plots. Investigation of these standards inferred that adsorption was spontaneous, endothermic with increased randomness. The XRD and FTIR spectral analysis definite that adsorption was physisorption. The consequences in this study designated that PDC could be employed as an adsorbent for the adsorption of Cu(II) ions from an aqueous solution.
- Subjects
COPPER ions; AQUEOUS solutions; ACTIVATED carbon
- Publication
Journal of Advanced Scientific Research, 2020, Vol 11, p270
- ISSN
0976-9595
- Publication type
Article