Preparation and characterization of polymer based nanomaterials for beryllium extraction from Um Adebaa area / Mohamed Abdeltawab Sayed ; Supervised Maher Zaki Elsabee , Said Sayed Elkholy , Mohamed Shaaban Atrees

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Mohamed Abdeltawab Sayed

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TextLanguage: English Publication details: Cairo : Mohamed Abdeltawab Sayed , 2017Description: 127 P. : charts , maps ; 25cmOther title:

تحضير وتوصيف مواد بوليمرية نانومترية لاستخلاص البريليوم من منطقة أم الضباع [Added title page title]

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Issued also as CD

Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry Summary: Be (II) was extracted from its ore as a beryl mineral and then leached as a sulfate liquor. Ordered meso-porous silica nanoparticles (MCM-41) and electrospun microporous silica nanofibers (SNF) were prepared as a matrix for beryllium uptake. Chitosan nanoparticles (Ch NPs) and nanocomposites with MCM-41 have been synthesized and their physical and surface properties were studied. Beryllium uptake efficiency using these novel materials was studied under different pH values, contact times, initial Be (II) concentrations and adsorbent doses. The maximum achieved uptake efficiencies were 45.8 and 92.7 for MCM-41 and SNF respectively and 95% and 96% for the nanocomposites which were superior to MCM-41 and higher than that of Ch NPs (90%)

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Holdings
Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.11.Ph.D.2017.Mo.P (Browse shelf(Opens below))		Not for loan		01010110077062000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.11.Ph.D.2017.Mo.P (Browse shelf(Opens below))	77062.CD	Not for loan		01020110077062000

Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry

Be (II) was extracted from its ore as a beryl mineral and then leached as a sulfate liquor. Ordered meso-porous silica nanoparticles (MCM-41) and electrospun microporous silica nanofibers (SNF) were prepared as a matrix for beryllium uptake. Chitosan nanoparticles (Ch NPs) and nanocomposites with MCM-41 have been synthesized and their physical and surface properties were studied. Beryllium uptake efficiency using these novel materials was studied under different pH values, contact times, initial Be (II) concentrations and adsorbent doses. The maximum achieved uptake efficiencies were 45.8 and 92.7 for MCM-41 and SNF respectively and 95% and 96% for the nanocomposites which were superior to MCM-41 and higher than that of Ch NPs (90%)

Issued also as CD

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