Au thin films nano-structuration on polycrystalline anatase and rutile TiO2 substrates towards photocatalytic applications

被引：15

作者：

Cacciato, G. ^{[1
,2
]}

Ruffino, F. ^{[1
,2
]}

Zimbone, M. ^{[2
]}

Reitano, R. ^{[1
]}

Privitera, V. ^{[2
]}

Grimaldi, M. G. ^{[1
,2
]}

机构：

[1] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy

[2] CNR, IMM, I-95123 Catania, Italy

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2016年 / 42卷

关键词：

METAL NANOPARTICLES; ENVIRONMENT; SHAPE;

D O I：

10.1016/j.mssp.2015.07.074

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Recent years have shown a renewed interest in The use of functional semiconductors for conversion of solar to chemical energy by photocatalysis. Moreover, metal nanoparticles (NPs) are able to improve the photocatalytic efficiency due to their localized surface plasmon resonance (LSPR). In this sense, Au NPs are of particular interest since they exhibit resonant behavior in the visible range, allowing the harvesting of a large amount of the solar flux. Among semiconductor photocatalysts, TiO2 has been investigated due to its abundance, stability, non-toxicity and high photocatalytic activity. In this work, the properties of Au NPs/TiO2 composite materials are investigated in detail due to their potential application in visible driven photocatalysis. Au NPs are obtained after thermal dewetting of sputtered Au films on TiO2. We correlate the photocatalytic activity of the Au NPs-TiO2 composite film under UV illumination with structural properties and TiO2 phase. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：40 / 44

页数：5

共 23 条

[1] Photocatalytic and antibacterial activity of TiO2 and Au/TiO2 nanosystems [J].

Armelao, Lidia ;

Barreca, Davide ;

Bottaro, Gregorio ;

Gasparotto, Alberto ;

Maccato, Chiara ;

Maragno, Cinzia ;

Tondello, Eugenio ;

Stangar, Urska Lavrencic ;

Bergant, Martina ;

Mahne, Dunja .

NANOTECHNOLOGY, 2007, 18 (37)

[2]

Bohren C.F., 1983, Absorption of Light by Small Particles

[3] TiO2 photocatalysis and related surface phenomena [J].

Fujishima, Akira ;

Zhang, Xintong ;

Tryk, Donald A. .

SURFACE SCIENCE REPORTS, 2008, 63 (12) :515-582

[4] ULTRAFINE METAL PARTICLES [J].

GRANQVIST, CG ;

BUHRMAN, RA .

JOURNAL OF APPLIED PHYSICS, 1976, 47 (05) :2200-2219

[5] Review of the anatase to rutile phase transformation [J].

Hanaor, Dorian A. H. ;

Sorrell, Charles C. .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (04) :855-874

[6] TiO2 photocatalysis:: A historical overview and future prospects [J].

Hashimoto, K ;

Irie, H ;

Fujishima, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (12) :8269-8285

[7] A Review of Surface Plasmon Resonance-Enhanced Photocatalysis [J].

Hou, Wenbo ;

Cronin, Stephen B. .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (13) :1612-1619

[8] The optical properties of metal nanoparticles: The influence of size, shape, and dielectric environment [J].

Kelly, KL ;

Coronado, E ;

Zhao, LL ;

Schatz, GC .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (03) :668-677

[9]

Linic S, 2011, NAT MATER, V10, P911, DOI [10.1038/NMAT3151, 10.1038/nmat3151]

[10] Plasmon Resonant Enhancement of Photocatalytic Water Splitting Under Visible Illumination [J].

Liu, Zuwei ;

Hou, Wenbo ;

Pavaskar, Prathamesh ;

Aykol, Mehmet ;

Cronin, Stephen B. .

NANO LETTERS, 2011, 11 (03) :1111-1116

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