Surface states of titanium dioxide nanoparticles modified with enediol ligands

Linda De La Garza; Zoran V. Saponjic; Nada M. Dimitrijevic; Tijana Rajh; Marion C. Thurnauer

Surface states of titanium dioxide nanoparticles modified with enediol ligands

Linda De La Garza, Zoran V. Saponjic, Nada M. Dimitrijevic, Tijana Rajh, Marion C. Thurnauer

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO ₂ nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO ₂, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.

Original language	English (US)
Title of host publication	Electron Transfer in Nanomaterials - Proceedings of the International Symposium
Pages	333-339
Number of pages	7
State	Published - 2006
Externally published	Yes
Event	205th Electrochemical Society Meeting - San Antonio, TX, United States Duration: May 9 2004 → May 14 2004

Publication series

Name	Proceedings - Electrochemical Society
Volume	PV 2004-22

Other

Other	205th Electrochemical Society Meeting
Country/Territory	United States
City	San Antonio, TX
Period	5/9/04 → 5/14/04

ASJC Scopus subject areas

Engineering(all)

Cite this

Surface states of titanium dioxide nanoparticles modified with enediol ligands. / De La Garza, Linda; Saponjic, Zoran V.; Dimitrijevic, Nada M. et al.
Electron Transfer in Nanomaterials - Proceedings of the International Symposium. 2006. p. 333-339 (Proceedings - Electrochemical Society; Vol. PV 2004-22).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

De La Garza, L, Saponjic, ZV, Dimitrijevic, NM, Rajh, T & Thurnauer, MC 2006, Surface states of titanium dioxide nanoparticles modified with enediol ligands. in Electron Transfer in Nanomaterials - Proceedings of the International Symposium. Proceedings - Electrochemical Society, vol. PV 2004-22, pp. 333-339, 205th Electrochemical Society Meeting, San Antonio, TX, United States, 5/9/04.

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title = "Surface states of titanium dioxide nanoparticles modified with enediol ligands",

abstract = "Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO 2 nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO 2, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.",

author = "{De La Garza}, Linda and Saponjic, {Zoran V.} and Dimitrijevic, {Nada M.} and Tijana Rajh and Thurnauer, {Marion C.}",

year = "2006",

language = "English (US)",

isbn = "1566774357",

series = "Proceedings - Electrochemical Society",

pages = "333--339",

booktitle = "Electron Transfer in Nanomaterials - Proceedings of the International Symposium",

note = "205th Electrochemical Society Meeting ; Conference date: 09-05-2004 Through 14-05-2004",

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T1 - Surface states of titanium dioxide nanoparticles modified with enediol ligands

AU - De La Garza, Linda

AU - Saponjic, Zoran V.

AU - Dimitrijevic, Nada M.

AU - Rajh, Tijana

AU - Thurnauer, Marion C.

PY - 2006

Y1 - 2006

N2 - Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO 2 nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO 2, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.

AB - Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO 2 nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO 2, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.

UR - http://www.scopus.com/inward/record.url?scp=33749550340&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749550340&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33749550340

SN - 1566774357

SN - 9781566774352

T3 - Proceedings - Electrochemical Society

SP - 333

EP - 339

BT - Electron Transfer in Nanomaterials - Proceedings of the International Symposium

T2 - 205th Electrochemical Society Meeting

Y2 - 9 May 2004 through 14 May 2004

ER -

Surface states of titanium dioxide nanoparticles modified with enediol ligands

Abstract

Publication series

Other

ASJC Scopus subject areas

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