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Novel photoactive polymer composites...

Cardone, Ellen M.

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Novel photoactive polymer composites for use in the degradation of organic wastes.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Novel photoactive polymer composites for use in the degradation of organic wastes./
作者:	Cardone, Ellen M.
面頁冊數:	56 p.
附註:	Source: Masters Abstracts International, Volume: 48-06, page: 3749.
Contained By:	Masters Abstracts International48-06.
標題:	Chemistry, Inorganic. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1477152
ISBN:	9781124032948

Novel photoactive polymer composites for use in the degradation of organic wastes.
Cardone, Ellen M.

Novel photoactive polymer composites for use in the degradation of organic wastes. - 56 p.

Source: Masters Abstracts International, Volume: 48-06, page: 3749.

Thesis (M.S.)--State University of New York at Buffalo, 2010.

The objective of this work was to test the feasibility of combining photoactive dyes, titania, and polymers to create various novel polymer composites. The composite materials were synthesized by functionalizing TiO2-based materials with visible-active dyes, followed by integrating the functionalized TiO2 into traditional polymeric materials. It was hypothesized that there would be a substantial increase in the antifouling activity of the material when combining all three components (visible-active dye, titania, and polymer hydrogel) into one composite. The materials were characterized by a variety of traditional techniques, including thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FT-IR), and ultraviolet-visible spectroscopy (UV-Vis). In addition, the polymer composites were tested in a photoreactor under UV light to qualitatively measure how well they degrade model organic wastes.

ISBN: 9781124032948Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Novel photoactive polymer composites for use in the degradation of organic wastes.
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245 1 0 $a Novel photoactive polymer composites for use in the degradation of organic wastes.
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500 $a Source: Masters Abstracts International, Volume: 48-06, page: 3749.
500 $a Adviser: Michael W. McKittrick.
502 $a Thesis (M.S.)--State University of New York at Buffalo, 2010.
520 $a The objective of this work was to test the feasibility of combining photoactive dyes, titania, and polymers to create various novel polymer composites. The composite materials were synthesized by functionalizing TiO2-based materials with visible-active dyes, followed by integrating the functionalized TiO2 into traditional polymeric materials. It was hypothesized that there would be a substantial increase in the antifouling activity of the material when combining all three components (visible-active dye, titania, and polymer hydrogel) into one composite. The materials were characterized by a variety of traditional techniques, including thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FT-IR), and ultraviolet-visible spectroscopy (UV-Vis). In addition, the polymer composites were tested in a photoreactor under UV light to qualitatively measure how well they degrade model organic wastes.
520 $a All of the different polymer composites tested in the reactor reduced the concentration of 4-nitrophenol (4-NP) by at least 50% in 5 hours. The best performing composite was the combination of P25 and rhodamine B, which reduced the concentration of 4-NP by 87.6% in 5 hours. As UV irradiation time was increased beyond 5 hours, the concentrations of 4-NP decreased even further. On more than one occasion, leaching of titania from the polymer compositess was observed. These observations suggest the next step toward making this experimental setup viable is to introduce covalent linker molecules between the dye molecules and the surface of the titania.
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