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Isotherm studies on removal of lead(II) ions from wastewater by magnetic carbon synthesised from Euphorbia hirta leaf extract

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Title Isotherm studies on removal of lead(II) ions from wastewater by magnetic carbon synthesised from Euphorbia hirta leaf extract
 
Creator Sudha, Ramasamy
Latha, Kumarappan
Jayalakshmi, Rajendran
 
Subject Removal of Lead(II)
Euphorbia hirta leaf
Isotherm
Kinetic parameters
 
Description 672-680
In this article a magnetic carbon (MEHLC) has been synthesised from Euphorbia hirta leaf (EHL) extract to investigate
the adsorption capacity of lead(II) ions from aqueous solutions and industrial wastewater. The prepared magnetic carbon
(MEHLC) is compared with raw material (EHL) under the batch adsorption process such as contact time, pH, adsorbent
dose and temperature. The adsorbents are characterized by FT-IR, SEM and EDX studies. The maximum removal is
obtained at 300 K and the Langmuir isotherm of MEHLC and EHL is found to be with applicable qm value of 385.86 and
21.96 mg g-1, respectively. Various thermodynamic parameters, including the standard Gibbs free energy (ΔGo), standard
enthalpy (ΔHo) and standard entropy (ΔSo), are evaluated. The MEHLC and EHL are tested with lead(II) plating wastewater
through a batch mode process over five cycles; MEHLC showed better results than EHL.
 
Date 2023-09-06T11:18:34Z
2023-09-06T11:18:34Z
2023-09
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/62500
https://doi.org/10.56042/ijct.v30i5.5214
 
Language en
 
Source IJCT Vol.30(5) [September 2023]