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Development of Granulated Adsorbent ...

Alorkpa, Esther Jemma.

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Development of Granulated Adsorbent for Clean-Up of Water Contaminated by Cesium.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Development of Granulated Adsorbent for Clean-Up of Water Contaminated by Cesium./
作者:	Alorkpa, Esther Jemma.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
面頁冊數:	55 p.
附註:	Source: Masters Abstracts International, Volume: 80-11.
Contained By:	Masters Abstracts International80-11.
標題:	Analytical chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13905858
ISBN:	9781392175743

Development of Granulated Adsorbent for Clean-Up of Water Contaminated by Cesium.
Alorkpa, Esther Jemma.

Development of Granulated Adsorbent for Clean-Up of Water Contaminated by Cesium. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 55 p.

Source: Masters Abstracts International, Volume: 80-11.

Thesis (M.S.)--East Tennessee State University, 2019.

This item must not be sold to any third party vendors.

A study was conducted on sol-gel synthesis of an adsorbent (phosphotungstic acid embedded in silica gel, H-PTA/SiO2) of radioactive cesium. A novelty of this work is covalent bonding of PTA to the surface of solid support that prevents leaching from the surface of the material. The sample was granulated with a binder, aluminum oxide (γ-Al2O3). Solid-state NMR and FT-IR spectroscopy were used to confirm the presence of Keggin units of PTA in the bound materials. Thermal analysis of H-PTA/SiO2 - γ-Al2O3 (50 %) showed that the water content in the bound material was appreciably lower than in the pure adsorbent. Quantitative determination of surface acidity of porous materials is an important analytical problem in characterization of the adsorbents. This problem was solved by reversed titration after saturation of the materials by anhydrous solution of pyridine. Batch and column adsorption tests showed that the adsorbent demonstrated high adsorption capacities towards cesium.

ISBN: 9781392175743Subjects--Topical Terms:

3168300
Analytical chemistry.

Development of Granulated Adsorbent for Clean-Up of Water Contaminated by Cesium.
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500 $a Source: Masters Abstracts International, Volume: 80-11.
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506 $a This item must not be added to any third party search indexes.
520 $a A study was conducted on sol-gel synthesis of an adsorbent (phosphotungstic acid embedded in silica gel, H-PTA/SiO2) of radioactive cesium. A novelty of this work is covalent bonding of PTA to the surface of solid support that prevents leaching from the surface of the material. The sample was granulated with a binder, aluminum oxide (γ-Al2O3). Solid-state NMR and FT-IR spectroscopy were used to confirm the presence of Keggin units of PTA in the bound materials. Thermal analysis of H-PTA/SiO2 - γ-Al2O3 (50 %) showed that the water content in the bound material was appreciably lower than in the pure adsorbent. Quantitative determination of surface acidity of porous materials is an important analytical problem in characterization of the adsorbents. This problem was solved by reversed titration after saturation of the materials by anhydrous solution of pyridine. Batch and column adsorption tests showed that the adsorbent demonstrated high adsorption capacities towards cesium.
590 $a School code: 0069.
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650 4 $a Inorganic chemistry. $3 3173556
650 4 $a Materials science. $3 543314
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710 2 $a East Tennessee State University. $b Chemistry. $3 3436017
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