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Fabrication of electrospun TiO2/poly...

McCarthy, Danielle L.

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Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins./
作者:	McCarthy, Danielle L.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
面頁冊數:	188 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.
Contained By:	Dissertation Abstracts International77-12B(E).
標題:	Polymer chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10134220
ISBN:	9781339927152

Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins.
McCarthy, Danielle L.

Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 188 p.

Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.

Thesis (Ph.D.)--State University of New York at Binghamton, 2016.

Our society has made significant advancements in technology as it continues to grow in size which in turn, has led to an accumulating amount of toxic threats. Some types of harmful pollution our society is currently facing include industrial waste, pharmaceutical pollution and chemical warfare agents (CWAs). To date the nerve agent, O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate), also known as VX, is the world's most lethal chemical weapon. Some of these deadly nerve agents have been employed in various conflict and terrorist attacks. Currently available CWA degradation techniques include incineration and water hydrolysis followed by biotreatment with enzymes. Drawbacks to these techniques include the selectivity, degradation over extended treatment time, and lack of robustness. A more effective approach may be achieved by heterogeneous catalysis employing nanostructured composite materials. Solid catalysts including titania have demonstrated a means to effectively destroy CWAs.

ISBN: 9781339927152Subjects--Topical Terms:

3173488
Polymer chemistry.

Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins.
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245 1 0 $a Fabrication of electrospun TiO2/polymer composite nanofibers for photocatalysis and degradation of toxins.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 188 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-12(E), Section: B.
500 $a Adviser: Wayne E. Jones.
502 $a Thesis (Ph.D.)--State University of New York at Binghamton, 2016.
520 $a Our society has made significant advancements in technology as it continues to grow in size which in turn, has led to an accumulating amount of toxic threats. Some types of harmful pollution our society is currently facing include industrial waste, pharmaceutical pollution and chemical warfare agents (CWAs). To date the nerve agent, O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate), also known as VX, is the world's most lethal chemical weapon. Some of these deadly nerve agents have been employed in various conflict and terrorist attacks. Currently available CWA degradation techniques include incineration and water hydrolysis followed by biotreatment with enzymes. Drawbacks to these techniques include the selectivity, degradation over extended treatment time, and lack of robustness. A more effective approach may be achieved by heterogeneous catalysis employing nanostructured composite materials. Solid catalysts including titania have demonstrated a means to effectively destroy CWAs.
520 $a TiO2 is regarded as an efficient photocatalyst for degradation of organic toxins due to its strong oxidative power, high stability, low cost, and environmental friendliness. Our group has previously explored TiO2 nanofibers as an alternative materials approach to conventional nanoparticle composites for use in photocatalytic degradation, showing a four-fold enhancement in degradation against dimethyl methylphosphonate (DMMP). The precursors to TiO2 nanofibers, electrospun nanofibers of polymethyl methacrylate (PMMA) and titanium triisopropoxide (TTiP), were found to also possess catalytic properties when introduced to methyl paraoxon, a simulated chemical warfare agent (SCWA). In addition to the photocatalytic advantages of these fibers, increased flexibility and durability were observed compared to electrospun TiO2 nanofibers. The resulting fibers would also be better compatible with low temperature processing of multifunctional materials including metal-organic frameworks (MOFs) and sensors. Preliminary results of polymer composite fibers containing MOF have shown fastest degradation rates to date of methyl paraoxon with approximately 1/6th the weight percent of MOF.
520 $a In this work, it is shown there are many factors involved in optimizing the photocatalytic performance of TiO2/ polymer composite nanofibers. The combination of novel nanotechnology with advancements in photocatalysis can provide new benefits and improvements with filtration, and self-decontaminating textiles and paints. The diversity of applications these materials can be incorporated in has the potential to be life changing for civilians and warfighters who are in constant threat of toxic agents.
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710 2 $a State University of New York at Binghamton. $b Chemistry. $3 1036021
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793 $a English
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