Superior photocatalytic performance by vertically aligned core-shell TiO2/WO3 nanorod arrays

被引：79

作者：

Smith, W. ^{[1
]}

Zhao, Y. -P. ^{[1
]}

机构：

[1] Univ Georgia, Dept Phys & Astron, Nanoscale Sci & Engn Ctr, Athens, GA 30601 USA

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 07期

关键词：

Core-shell materials; Photocatalysis; Nanorods; Glancing angle deposition; THIN-FILMS; HYDROGEN-PRODUCTION; TITANIA; ANATASE; GROWTH; WO3; NANOPARTICLES; MICROSPHERES; DEPOSITION; EFFICIENCY;

D O I：

10.1016/j.catcom.2009.01.010

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：

Using two consecutive regarding glancing angle depositions at different deposition angles and with different materials, a WO3-core TiO2-shell nanostructure has been fabricated and has photocatalytic enhancement up to 70 times over amorphous single layer TiO2 thin films, 13 times enhancement over crystalline (anatase) TiO2 thin films, and 3 times enhancement over c-TiO2/a-WO3 two-layer thin films, with much less the load of TiO2. We believe that the mechanism for the photocatalytic enhancement is from the increased density of charge separated electron-hole pairs aided by the WO3 layer, the interfacial area between the two-layers, and the large surface area from the porous nanostructure. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1117 / 1121

页数：5

共 50 条

[21] Effect of CdS shell thickness on the photocatalytic properties of TiO2@CdS core-shell nanorod arrays
Shi, Zhu
Liu, Jiani
Lan, Huixia
Li, Xiuyan
Zhu, Bangyao
Yang, Jinghai
[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2019, 30 (19) : 17682 - 17692
[22] Vertically Aligned Core-Shell PbTiO3@TiO2 Heterojunction Nanotube Array for Photoelectrochemical and Photocatalytic Applications
Jang, Jum Suk
Ahn, Chang Won
Won, Sung Sik
Kim, Ju Hun
Choi, Wonyong
Lee, Byoung-Seob
Yoon, Jang-Hee
Kim, Hyun Gyu
Lee, Jae Sung
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (28): : 15063 - 15070
[23] Amorphous TiO2 coated hierarchical WO3 Nanosheet/CdS Nanorod arrays for improved photoelectrochemical performance
Wang, Zhiwei
Yang, Guang
Tan, Chiew Kei
Tam Duy Nguyen
Tok, Alfred Iing Yoong
[J]. APPLIED SURFACE SCIENCE, 2019, 490 : 411 - 419
[24] Fabrication and photocatalytic performance of WO3/TiO2 heterojunction composites
Zhao, Qianru
Chen, Shuangyang
Ren, Binghua
Liu, Sinan
Zhang, Yongchao
Luo, Xi
Feng, Wei
Sun, Yan
[J]. OPTICAL MATERIALS, 2023, 135
[25] Preparation and characterization of WO3 nanoparticles, WO3/TiO2 core/shell nanocomposites and PEDOT:PSS/WO3 composite thin films for photocatalytic and electrochromic applications
Boyadjiev, Stefan I.
Santos, Gustavo dos Lopes
Szucs, Julia
Szilagyi, Imre M.
[J]. 9TH INTERNATIONAL PHYSICS CONFERENCE OF THE BALKAN PHYSICAL UNION (BPU-9), 2016, 1722
[26] Photocatalytic Properties of WO3/TiO2 Core/Shell Nanofibers prepared by Electrospinning and Atomic Layer Deposition
Szilagyi, Imre Miklos
Santala, Eero
Heikkila, Mikko
Pore, Viljami
Kemell, Marianna
Nikitin, Timur
Teucher, Georg
Firkala, Tamas
Khriachtchev, Leonid
Rasanen, Markku
Ritala, Mikko
Leskela, Markku
[J]. CHEMICAL VAPOR DEPOSITION, 2013, 19 (4-6) : 149 - 155
[27] Photocatalytic WO3/TiO2 nanowires: WO3 polymorphs influencing the atomic layer deposition of TiO2
Nagy, Davidne
Firkala, Tamas
Drotar, Eszter
Szegedi, Agnes
Laszlo, Krisztina
Szilagyi, Imre Miklos
[J]. RSC ADVANCES, 2016, 6 (98): : 95369 - 95377
[28] Photocatalytic WO3 and TiO2 Films on Brass
Mashtalir, Olha
Kurtoglu, Murat
Pogulay, Sergey
Gogotsi, Alexey
Naguib, Michael
Gogotsi, Yury
[J]. INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2013, 10 (01) : 26 - 32
[29] Monoclinic WO3 nanorods-rutile TiO2 nanoparticles core-shell interface for efficient DSSCs
Shaikh, ShoyebMohamad F.
Kalanur, Shankara S.
Mane, Rajaram S.
Joo, Oh-Shim
[J]. DALTON TRANSACTIONS, 2013, 42 (28) : 10085 - 10088
[30] THE EFFECT OF WO3 ON THE PHOTOCATALYTIC ACTIVITY OF TIO2
DO, YR
LEE, W
DWIGHT, K
WOLD, A
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1994, 108 (01) : 198 - 201

← 1 2 3 4 5 →