{"620416":{"#nid":"620416","#data":{"type":"event","title":"PhD Proposal by Jiwoo Yu","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETHE SCHOOL OF MATERIALS SCIENCE AND ENGINEERING\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EGEORGIA INSTITUTE OF TECHNOLOGY\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EUnder the provisions of the regulations for the degree\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\n\u003Cstrong\u003EDOCTOR OF PHILOSOPHY\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\n\u003Cstrong\u003Eon Tuesday, April 30, 2019\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E4:30 PM\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u003Cstrong\u003Ein MoSE 4100F\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003Ewill be held the\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EDISSERTATION PROPOSAL DEFENSE\u003C\/strong\u003E\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\n\u003Cstrong\u003Efor\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EJiwoo Yu\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003E\u0026quot;Cellulose-based Magnetic Core\/Shell Microspheres for Water Purification\u0026quot;\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003ECommittee Members:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. Zhiqun Lin, Advisor, MSE\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. Yulin Deng, ChBE\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. Seung Soon Jang, MSE\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. Meisha Shofner, MSE\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EProf. Vladimir Tsukruk, MSE\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003C\/strong\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETraditional water supply is currently facing grand challenges due to recent new regulations on lowering pollutant levels as a result of deteriorated water quality in the world. In this context, nanomaterials offer the opportunity to innovate water purification technology with decreased cost and size as well as improved selectivity over a wide range of pollutants. Nano-adsorbents can be further improved in effectiveness or process design when integrating with scaffolds by preventing agglomeration and maintaining more accessible active sites for pollutant adsorption. Despite recent progress in employing nanoparticles-impregnated scaffolds for water treatment, effective methods to yield low-cost, large-scale and environmentally friendly nanocomposites are comparatively few and limited in scope.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETo this end, we developed low-cost, non-toxic paraffin\/cellulose core\/shell microsphere scaffold that can integrate with hydrophilic and hydrophobic nano-adsorbents for water treatment. The ability to impregnate nano-adsorbents of different surface chemistry renders the flexibility for targeted purification. In this study, hydrophobic Fe3O4 nanoparticles and hydrophilic Fe3O4 thin-sheets are successfully integrated with hydrophobic paraffin core and hydrophilic cellulose shell, respectively. The hydrophilic cellulose shell also enables colloidal stability in water that increases the adsorption effectiveness for pollutants, while the hydrophobic core imparts mechanical strength. Such cellulose-based magnetic core\/shell microspheres will be evaluated for methylene blue, Cu(II), and Pb(II) adsorption in waste water. Due to the incorporation of magnetic nanoparticles within core\/shell microspheres, they can be readily collected and recycled from water with magnet for complete and repeated removal of the adsorbents.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Cellulose-based Magnetic Core\/Shell Microspheres for Water Purification"}],"uid":"27707","created_gmt":"2019-04-15 16:05:07","changed_gmt":"2019-04-15 16:05:07","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-04-30T17:30:00-04:00","event_time_end":"2019-04-30T19:30:00-04:00","event_time_end_last":"2019-04-30T19:30:00-04:00","gmt_time_start":"2019-04-30 21:30:00","gmt_time_end":"2019-04-30 23:30:00","gmt_time_end_last":"2019-04-30 23:30:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}