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Synthesis of magnetic activated carbon from Citrus hystrix (Kaffir lime or Kolumichai) leaves with excellent Pb(II) adsorption performance towards electroplating wastewater

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Title Synthesis of magnetic activated carbon from Citrus hystrix (Kaffir lime or Kolumichai) leaves with excellent Pb(II) adsorption performance towards electroplating wastewater
 
Creator Sribharathi, Swaminathan
Kavitha, Gurusamy
Sudha, Ramasamy
 
Subject Citrus hystrix leaves
Isotherm
Lead(II)
Thermodynamics
 
Description 229-239
The adsorption behaviour of Pb(II) ions from aqueous solution has been successfully tested by magnetic activated carbon
prepared from novel adsorbent such as Citrus hystrix leaves (MCHLAC) by co-precipitation method and followed by
thermal activation. The optimum contact time for the removal Pb(II) ions onto MCHLAC is found to be 90 min, and the
optimum pH ranged from 5.0–7.0 respectively. The functionality, surface morphology and elemental composition of
MCHLAC have been explored by FTIR, SEM and EDX analysis. The equilibrium data agree well with Langmuir model,
which confirm the monolayer coverage of Pb(II) ions onto MCHLAC and the maximum monolayer adsorption capacity is
345.65 mg g-1. The kinetic data follow by pseudo-second order model with film diffusion process. Thermodynamic studies
indicate that the process of uptake of lead(II) ions is spontaneous and exothermic. A single –stage batch adsorber is designed
using the Langmuir adsorption isotherm equation. The regeneration study show that MCHLAC could be effectively utilized
for the removal of Pb(II) ions for seven cycles of operation.
 
Date 2022-06-27T09:51:16Z
2022-06-27T09:51:16Z
2022-05
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/59939
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.29(3) [May 2022]