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<!doctype html><html class=no-js lang=en><head><meta charset=utf-8><meta http-equiv=x-ua-compatible content="ie=edge"><meta name=viewport content="width=device-width,initial-scale=1"><title>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers - MillironX</title><link href="/styles/mix-twbs.min.css" rel=stylesheet></head><body><div class=container-fluid><div class="row wrapper min-vh-100 flex-column flex-sm-row"><aside class="col-12 col-md-3 p-0 bg-dark flex-shrink-1"><nav class="navbar navbar-expand-md navbar-dark bg-dark align-items-start flex-md-column flex-row"><div class=container-fluid><a class="navbar-brand d-block d-md-none" href=#><object class="d-inline-block align-text-top" width=80 height=24 style=filter:invert(100%) data=/graphics/millironx.svg>
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  Milliron X</h1></header></div><section class="container-fluid list-main"><div class="container px-5"><h5>University of Idaho: Moscow, Idaho</h5><h2>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers</h2><h3><small><ul class=list-inline></ul></small></h3><h4>August 7, 2020</h4><p>Polyoxometalate clusters embedded into hydrogel biobeads may be able to solve
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the challenges posed by free proton generation during remediation of
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trichloroethylene by acting as buffers and reducing protons to hydrogen gas. In
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this thesis, the challenges posed by systems that contain both diffusion and
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reaction processes for protons are considered mathematically, and a computer
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simulation to was developed to prove the relationship between diaphragm cell lag
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period and reactive capabilities of membranes. Two polyoxometalate compounds,
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sodium decavanadate and alumina sulfate, were successfully incorporated into a
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poly(vinyl alcohol) hydrogel membrane, and the diffusivity changes associated
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with each compound was determined. It was found that the diffusivity of protons
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through an unmodified 10% w/v poly(vinyl alcohol) membrane was 1.76 ×
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10<sup>-5</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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, the diffusivity through a
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10%/2% w/w/v poly(vinyl alcohol)/sodium decavanadate membrane was 3.10 ×
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10<sup>-6</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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, and the diffusivity through a
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10%/2% w/w/v poly(vinyl alcohol)/alumina sulfate membrane was 3.32 ×
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10<sup>-7</sup>
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cm<sup>2</sup>
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s<sup>-1</sup>
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. Through analysis of the
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diaphragm cell lag period, it was found the incorporation of sodium decavanadate
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did not increase the reactivity of a poly(vinyl alcohol) hydrogel, and
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incorporation of alumina sulfate lowered the reactivity. These results indicate
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that polyoxometalate integration into hydrogel membranes is feasible, but does
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not provide any advantage to a bioremediation scenario.</p><div class="card border-dark m-3 p-3"><a href=https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2>https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2</a>
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purpose.</p></div><div class="tab-pane fade p-3" id=debug role=tabpanel><dl><dt>cardimage</dt><dd>library</dd><dt>categories</dt><dd>[thesis]</dd><dt>date</dt><dd>2020-08-07 00:00:00 +0000 UTC</dd><dt>draft</dt><dd>false</dd><dt>featured</dt><dd>true</dd><dt>iscjklanguage</dt><dd>false</dd><dt>journal</dt><dd>University of Idaho</dd><dt>lastmod</dt><dd>2020-08-07 00:00:00 +0000 UTC</dd><dt>link</dt><dd>https://www.proquest.com/dissertations-theses/polyoxometalate-incorporation-effects-on-proton/docview/2502214356/se-2</dd><dt>location</dt><dd>Moscow, Idaho</dd><dt>people</dt><dd>[Thomas A. Christensen II]</dd><dt>publishdate</dt><dd>2020-08-07 00:00:00 +0000 UTC</dd><dt>tags</dt><dd>[bioremediation polyoxometalate hydrogel polymers proton transport chemical engineering]</dd><dt>title</dt><dd>Polyoxometalate Incorporation and Effects on Proton Transport in Hydrogel Polymers</dd></dl></div></div></div></div></div></div></body></html> |