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Physical characterization and spectroscopic studies of polymer nanocomposites for treatment of groundwater / Omar Taha Hussein ; Supervised Fawzy Hamed Abdelkader , Adel M. Shehap , Alsayed M. Baker

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Omar Taha Hussein , 2016Description: 138 P. : charts , facsimiles ; 25cmOther title:
  • دراسة توصيفية وطيفية لمتراكبات نانومترية مع بوليمر لمعالجة المياه الجوفية [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics Summary: Nanocomposite films from chitosan biopolymer (CS) and montmorillonite nanoclay (MMT) at various concentration of (2.5, 5, 7.5, 10, 12.5 and 15% wt% MMT) were prepared by using both sonication and casting technique. The study of addition MMT nanoparticles at different contents in the composites showed that: The formation of an intercalated structure as exfoliated and flocculated patterns as indicated by the analysis of X-ray diffraction. FTIR indicated the complexation between chitosan and nanoclay due to the changes of characterization frequency and the electrostatic interaction between cationic of chitosan and anionic of MMT confirming the x-ray analysis. UV-visible spectra clarified that the allowed indirect transition was the most probable type transition. The optical energy gap decrease with increasing the content of MMT while the refractive index show the opposite behavior. The oscillator parameters were calculating using the oscillator model. TGA data showed that the thermal stability increases with increasing the MMT contents in composite samples. The thermodynamics parameters were calculated using Coats-Redfern model. The adsorption process of manganese ions from groundwater followed Langmuir isotherm model and the kinetic isotherm Pseudo-second-order mode was preferable.
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.20.M.Sc.2016.Om.P (Browse shelf(Opens below)) Not for loan 01010110069663000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.20.M.Sc.2016.Om.P (Browse shelf(Opens below)) 69663.CD Not for loan 01020110069663000

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics

Nanocomposite films from chitosan biopolymer (CS) and montmorillonite nanoclay (MMT) at various concentration of (2.5, 5, 7.5, 10, 12.5 and 15% wt% MMT) were prepared by using both sonication and casting technique. The study of addition MMT nanoparticles at different contents in the composites showed that: The formation of an intercalated structure as exfoliated and flocculated patterns as indicated by the analysis of X-ray diffraction. FTIR indicated the complexation between chitosan and nanoclay due to the changes of characterization frequency and the electrostatic interaction between cationic of chitosan and anionic of MMT confirming the x-ray analysis. UV-visible spectra clarified that the allowed indirect transition was the most probable type transition. The optical energy gap decrease with increasing the content of MMT while the refractive index show the opposite behavior. The oscillator parameters were calculating using the oscillator model. TGA data showed that the thermal stability increases with increasing the MMT contents in composite samples. The thermodynamics parameters were calculated using Coats-Redfern model. The adsorption process of manganese ions from groundwater followed Langmuir isotherm model and the kinetic isotherm Pseudo-second-order mode was preferable.

Issued also as CD

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