Growth of titanium dioxide nanopetals induced by single wall carbon nanohorns

被引：15

作者：

Battiston, Simone ^{[2
,3
]}

Minella, Marco ^{[4
,5
]}

Gerbasi, Rosalba ^{[1
]}

Visentin, Francesca ^{[1
]}

Guerriero, Paolo ^{[1
]}

Leto, Andrea ^{[6
]}

Pezzotti, Giuseppe ^{[7
,8
]}

Miorin, Enrico ^{[2
]}

Fabrizio, Monica ^{[2
]}

Pagura, Cesare ^{[2
]}

机构：

[1] CNR Ist Chim Inorgan & Superfici, I-35127 Padua, Italy

[2] CNR Ist Energet & Interfasi, I-35127 Padua, Italy

[3] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy

[4] Univ Turin, Dipartimento Chim Analit, I-10125 Turin, Italy

[5] Univ Turin, NIS Ctr Excellence, I-10125 Turin, Italy

[6] Piezotech Japan Ltd, Sakyo Ku, Kyoto 6068126, Japan

[7] Kyoto Inst Technol, Ceram Phys Lab, Sakyo Ku, Kyoto 6068585, Japan

[8] Kyoto Inst Technol, RIN, Sakyo Ku, Kyoto 6068585, Japan

来源：

CARBON | 2010年 / 48卷 / 09期

关键词：

PHOTOCATALYTIC TRANSFORMATION; ELECTRON-TRANSFER; NANOTUBE ARRAYS; TIO2; PHENOL; DEGRADATION; MECHANISMS; FILMS;

D O I：

10.1016/j.carbon.2010.03.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel titanium dioxide architecture, called titanium dioxide nanopetals, was obtained through two sequential vapour techniques, metal-organic chemical vapour deposition (MOCVD) and magnetron sputtering on a single wall carbon nanohorn (SWCNH) bed, resulting in a surprising synergistic effect. The new composite material was characterized by scanning and transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The particular experimental conditions under which this unusual growth was obtained are discussed in detail. The photocatalytic degradation of phenol under UV light irradiation demonstrated that this novel material exhibited a significant increase of photoactivity in comparison with the titanium dioxide thin films deposited by RF magnetron sputtering and the SWCNHs coated with titanium dioxide by MOCVD. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2470 / 2477

页数：8

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