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Photocatalytic removal of thallium(I...

Kajitvichyanukul, Puangrat.

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Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide./
Author:	Kajitvichyanukul, Puangrat.
Description:	122 p.
Notes:	Source: Dissertation Abstracts International, Volume: 63-03, Section: B, page: 1506.
Contained By:	Dissertation Abstracts International63-03B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3047929
ISBN:	0493621326

Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide.
Kajitvichyanukul, Puangrat.

Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide. - 122 p.

Source: Dissertation Abstracts International, Volume: 63-03, Section: B, page: 1506.

Thesis (Ph.D.)--The University of Texas at Arlington, 2002.

Heterogeneous photocatalysis using titanium dioxide as the catalyst under ultraviolet (UV) irradiation was investigated for Tl(I) removal from aqueous media. In this dissertation, photocatalytic reactions under various conditions (e.g., pH, light intensity, and organic and inorganic co-additives) were studied. The direct photocatalytic reduction process was first explored. Due to its fairly negative reduction potential, the direct photocatalytic reduction of Tl(I) species using photogenerated electrons in UV-irradiated titania suspensions was unfavorable. However, the photocatalytic reactivity is drastically modified when co-additives were present. The extent of Tl(I) removal from water was dependent on the type and concentration of additives. It was found that Tl(I) was successfully removed from water by photocatalytic reduction in the presence of organic co-additives (e.g., formate, oxalate, and acetate ions). The photoconversion of Tl(I) was enhanced by nitrite and nitrate, while chloride inhibited the process.

ISBN: 0493621326Subjects--Topical Terms:

586156
Chemistry, Analytical.

Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide.
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005 20110505
008 110505s2002 eng d
020 $a 0493621326
035 $a (UnM)AAI3047929
035 $a AAI3047929
040 $a UnM $c UnM
100 1 $a Kajitvichyanukul, Puangrat. $3 1257152
245 1 0 $a Photocatalytic removal of thallium(I) ions from aqueous media using ultraviolet light and titanium dioxide.
300 $a 122 p.
500 $a Source: Dissertation Abstracts International, Volume: 63-03, Section: B, page: 1506.
500 $a Supervisors: Syed R. Qasim; Krishnan Rajeshwar.
502 $a Thesis (Ph.D.)--The University of Texas at Arlington, 2002.
520 $a Heterogeneous photocatalysis using titanium dioxide as the catalyst under ultraviolet (UV) irradiation was investigated for Tl(I) removal from aqueous media. In this dissertation, photocatalytic reactions under various conditions (e.g., pH, light intensity, and organic and inorganic co-additives) were studied. The direct photocatalytic reduction process was first explored. Due to its fairly negative reduction potential, the direct photocatalytic reduction of Tl(I) species using photogenerated electrons in UV-irradiated titania suspensions was unfavorable. However, the photocatalytic reactivity is drastically modified when co-additives were present. The extent of Tl(I) removal from water was dependent on the type and concentration of additives. It was found that Tl(I) was successfully removed from water by photocatalytic reduction in the presence of organic co-additives (e.g., formate, oxalate, and acetate ions). The photoconversion of Tl(I) was enhanced by nitrite and nitrate, while chloride inhibited the process.
520 $a In addition to the photocatalysis-related experiments, the dark adsorption of Tl(I) on the titania surface using different types of additives in aqueous media, was investigated. It was found that oxalate, formate, acetate and phosphate (at low levels) had a positive influence on Tl(I) adsorption, while phosphate (at high levels), chloride and nitrate exerted a negative effect. Finally, point of zero charge of the titania surface in the presence of different types of additives in Tl(I) aqueous solution, was also measured to provide supportive data for Tl(I) interfacial adsorption.
590 $a School code: 2502.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Engineering, Civil. $3 783781
650 4 $a Engineering, Environmental. $3 783782
690 $a 0486
690 $a 0543
690 $a 0775
710 2 0 $a The University of Texas at Arlington. $3 1025869
773 0 $t Dissertation Abstracts International $g 63-03B.
790 $a 2502
790 1 0 $a Qasim, Syed R., $e advisor
790 1 0 $a Rajeshwar, Krishnan, $e advisor
791 $a Ph.D.
792 $a 2002
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3047929