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Studies on Ni(II) removal from industrial wastewater by magnetic activated carbon nanocomposite

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Title Studies on Ni(II) removal from industrial wastewater by magnetic activated carbon nanocomposite
 
Creator Sribharathi, Swaminathan
Kavitha, Gurusamy
Sudha, Ramasamy
Kumar, Ganeshan Dinesh
 
Subject Citrus hystrix leaves
Desorption
Kinetics
Magnetic nanocomposite
Nickel(II) removal
 
Description 792-802
A novel and effective bio-adsorbent based on magnetic activated carbon nanocomposites (MCHLAC) has been created from citrus hystrix leaves (CHL) as agricultural waste and then utilised for Ni(II) removal. Different parameters such as contact duration, metal ion concentration, pH, adsorbent dosage and temperature are optimised for the removal of Ni(II) metal. The FTIR, SEM, EDX, BET and TEM analysis are used to investigate the functionality, surface morphology, and elemental structure of CHL and MCHLAC. The adsorption isotherms fit well to Langmuir model and the maximum adsorption capacities of CHL and MCHLAC was 40.17 and 420.75 mg g-1, respectively. Kinetic studies show that the CHL and MCHLAC are well fitted with the pseudo-second-order due to surface processes involving chemical adsorption of Ni(II) ions. Furthermore, the thermodynamic analysis of the process reveals that Ni2+ ion adsorption by the produced magnetic activated carbon is exothermic and spontaneous. According to the adsorption-desorption results, the MCHLAC can be used up to five cycles with excellent efficiency. As a result, the findings indicate that the magnetic nanocomposite loaded activated carbon, which demonstrated high efficiency, could be an effective option for a long-term water purification.
 
Date 2024-09-13T11:37:26Z
2024-09-13T11:37:26Z
2024-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/64526
https://doi.org/10.56042/ijct.v31i5.3531
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJCT Vol.31(5) [September 2024]