Adsorption studies on magnesium ferrite-bentonite nanocomposite by linear and nonlinear modeling

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dc.contributor.advisorManpreet Kaur
dc.contributor.authorKhushboo
dc.date.accessioned2022-07-30T12:59:46Z
dc.date.available2022-07-30T12:59:46Z
dc.date.issued2021
dc.description.abstractThis study envisages the adsorption and photodegradation studies on magnesium ferrite (MgFe2O4)-bentonite nanocomposite by linear and nonlinear modeling, using Cd (II) and martius yellow as model pollutants. The accumulation of MgFe2O4 nanoparticles (NPs) on the bentonite was affirmed by XRD, FT-IR, TEM and SEM-EDS studies. The linear and nonlinear regression methods were employed to accurately predict the adsorption and photodegradation mechanisms. The statistical parameters were evaluated for determining the best-fitted model. Linear type-II Langmuir equation best represented the equilibrium data for Cd (II) ions and martius yellow, which indicated monolayered and physical adsorption. Nanocomposite showed the maximum adsorption capacities of 1073.3 mg g-1 and 789.6 mg g1 for Cd (II) and martius yellow, respectively. The linear pseudo-second-order (type-I) kinetic model gave best-fit for both the adsorption and photodegradation, which specified the interaction of the Cd (II) and martius yellow with two active sites of the adsorbent. The synergistic effect for martius yellow degradation was observed by Cd (II) adsorbed nanocomposite. Degradation pathway was predicted on the basis of quenching studies and GCMS analysis. Thermodynamic studies revealed the endothermic and spontaneous nature of adsorption process. The reusability studies of nanocomposite signified its effectiveness. The present studies demonstrated that among linear and nonlinear modeling, the former fitted well for both adsorption and kinetic studies.en_US
dc.identifier.citationKhushboo (2021). Adsorption studies on magnesium ferrite-bentonite nanocomposite by linear and nonlinear modeling (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810185924
dc.keywordsMgFe2O4-bentonite nanocomposite, Cd (II) ions, martius yellow, linear modeling, nonlinear modelingen_US
dc.language.isoEnglishen_US
dc.pages118en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemAdsorption studies on magnesium ferrite-bentonite nanocomposite by linear and nonlinear modelingen_US
dc.subChemistryen_US
dc.themeAdsorption studies on magnesium ferrite-bentonite nanocomposite by linear and nonlinear modelingen_US
dc.these.typeM.Scen_US
dc.titleAdsorption studies on magnesium ferrite-bentonite nanocomposite by linear and nonlinear modelingen_US
dc.typeThesisen_US
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