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Equilibrium and Thermodynamic Studies of Pb(II), Cu(II) and Zn(II) Adsorption onto Dicliptera bupleuroides Leaves

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1TitleTitle of DocumentEquilibrium and Thermodynamic Studies of Pb(II), Cu(II) and Zn(II) Adsorption onto Dicliptera bupleuroides Leaves
2CreatorAuthor's name, affiliation, country PRIYANKA TIWARI, MAHESH C VISHWAKARMA, S K JOSHI*, RAJESH KUMAR and N S BHANDARI
Department of Chemistry, L.S.M.P.G. College, Pithoragarh, Uttrakhand, India
Department of Chemistry, G.P.G. College, Gopeshwar, Chamoli, Uttarakhand, India
Department of Chemistry, Kumaun University, Soban Singh Jeena Campus, Almora-263601, Uttarakhand, India
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Adsorption, Heavy metals, Dicliptera bupleuroides leaves, Isotherms, thermodynamic Parameters
4DescriptionAbstract Biosorption of Cu(II), Zn(II) and Pb(II) ions onto Dicliptera bupleuroides leaves (DBL) in a batch system with respect to adsorbent dose, contact time, temperature, pH and initial metal ion concentration was investigated. Langmuir, Freundlich and Temkin isotherm model were applied to describe the equilibrium data. Langmuir isotherm model provided a better fit to the experimental data than the Freundlich and Temkin isotherm. The adsorption capacity is 2.55 mg/g, 1.06 mg/g, and 1.76 mg/g for Cu(II), Zn(II) and Pb(II) respectively. The optimum adsorption conditions obtained were at contact time 75 min, pH 5, initial metal ion concentration 10 mg/L, temperature 45 oC for Cu(II) and 30 oC for Zn(II) and Pb(II) and adsorbent dose 2.5 g. Thermodynamic parameters indicated that the adsorption reactions were spontaneous (ΔGo<0), feasible and exothermic (ΔHo<0) .
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  6 , Number  (1), (2017)
12LanuguageEnglish=en en
13RelationSupp.files
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Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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