Photocatalytic Growth of Hierarchical Au Needle Clusters on Highly Active TiO2 Thin Film

被引：28
作者：
Veziroglu, Salih [1 ]
Ghori, Muhammad Zubair [1 ]
Kamp, Marius [2 ]
Kienle, Lorenz [2 ]
Rubahn, Horst-Guenter [3 ]
Strunskus, Thomas [1 ]
Fiutowski, Jacek [3 ]
Adam, Jost [3 ]
Faupel, Franz [1 ]
Aktas, Oral Cenk [1 ]
机构：
[1] Christian Albrechts Univ Kiel, Fac Engn, Chair Multicomponent Mat, Inst Mat Sci, Kaiserstr 2, D-24143 Kiel, Germany
[2] Christian Albrechts Univ Kiel, Fac Engn, Synth & Real Struct Grp, Inst Mat Sci, Kaiserstr 2, D-24143 Kiel, Germany
[3] Univ Southern Denmark, NanoSYD, Mads Clausen Inst, Alsion 2, DK-6400 Sonderborg, Denmark
来源：
ADVANCED MATERIALS INTERFACES | 2018年 / 5卷 / 15期
关键词：
gold; hierarchical; nanoneedle; photocatalysis; titania; ENHANCED RAMAN-SCATTERING; GOLD NANOPARTICLES; PHOTOCHEMICAL-SYNTHESIS; NANOSTRUCTURES; REDUCTION; TOXICITY; NANORODS; TITANIA;
D O I：
10.1002/admi.201800465
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hierarchical gold (Au) structures with sharp edges garner a strong interest for nanoelectronics, nanoenergy harvesting devices, and nano-biomedical applications due the exceptional strong electric field (hot spot) enhancement at their tips. Herein, a facile method to synthesize hierarchical Au needle clusters (HAuNCs) on highly active titanium oxide (TiO2) thin film is reported. Different from surfactant-directed photochemical-assisted synthesis methods, a photocatalytic deposition approach is demonstrated, which allows positioning and patterning of HAuNCs on TiO2 target without using any surfactant or stabilizer. This green synthesis approach enables to control the size and the geometry of deposited HAuNCs by simply altering the photocatalytic activity of TiO2 target, UV light intensity, and irradiation time.
引用
收藏
页数：7
相关论文
共 23 条
  • [1] High-yield synthesis of multi-branched urchin-like gold nanoparticles
    Bakr, Osman M.
    Wunsch, Benjamin H.
    Stellacci, Francesco
    [J]. CHEMISTRY OF MATERIALS, 2006, 18 (14) : 3297 - 3301
  • [2] Simple Synthetic Route for SERS-Active Gold Nanoparticles Substrate with Controlled Shape and Organization
    Bechelany, Mikhael
    Brodard, Pierre
    Elias, Jamil
    Brioude, Arnaud
    Michler, Johann
    Philippe, Laetitia
    [J]. LANGMUIR, 2010, 26 (17) : 14364 - 14371
  • [3] Large Scale Photochemical Synthesis of M@TiO2 Nanocomposites (M = Ag, Pd, Au, Pt) and Their Optical Properties, CO Oxidation Performance, and Antibacterial Effect
    Chen, Shao Feng
    Li, Jian Ping
    Qian, Kun
    Xu, Wei Ping
    Lu, Yang
    Huang, Wei Xin
    Yu, Shu Hong
    [J]. NANO RESEARCH, 2010, 3 (04) : 244 - 255
  • [4] Gold Mesostructures with Tailored Surface Topography and Their Self-Assembly Arrays for Surface-Enhanced Raman Spectroscopy
    Fang, Jixiang
    Du, Shuya
    Lebedkin, Sergei
    Li, Zhiyuan
    Kruk, Robert
    Kappes, Manfred
    Hahn, Horst
    [J]. NANO LETTERS, 2010, 10 (12) : 5006 - 5013
  • [5] A comparative study of photocatalysis on highly active columnar TiO2 nanostructures in-air and in-solution
    Ghori, Muhammad Zubair
    Veziroglu, Salih
    Henkel, Bodo
    Vahl, Alexander
    Polonskyi, Oleksandr
    Strunskus, Thomas
    Faupel, Franz
    Aktas, Oral Cenk
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2018, 178 : 170 - 178
  • [6] Photocatalytic properties of titania thin films prepared by sputtering versus evaporation and aging of induced oxygen vacancy defects
    Henkel, Bodo
    Neubert, Thomas
    Zabel, Sebastian
    Lamprecht, Constanze
    Selhuber-Unkel, Christine
    Raetzke, Klaus
    Strunskus, Thomas
    Vergoehl, Michael
    Faupel, Franz
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 180 : 362 - 371
  • [7] Photochemically Controlled Synthesis of Anisotropic Au Nanostructures: Platelet-like Au Nanorods and Six-Star Au Nanoparticles
    Huang, Xiao
    Qi, Xiaoying
    Huang, Yizhong
    Li, Shaozhou
    Xue, Can
    Gan, Chee Lip
    Boey, Freddy
    Zhang, Hua
    [J]. ACS NANO, 2010, 4 (10) : 6196 - 6202
  • [8] Gold Nanostars For Surface-Enhanced Raman Scattering: Synthesis, Characterization and Optimization
    Khoury, Christopher G.
    Vo-Dinh, Tuan
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (48) : 18849 - 18859
  • [9] Photochemical synthesis of gold nanorods
    Kim, F
    Song, JH
    Yang, PD
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (48) : 14316 - 14317
  • [10] A well-ordered flower-like gold nanostructure for integrated sensors via surface-enhanced Raman scattering
    Kim, Ju-Hyun
    Kang, Taejoon
    Yoo, Seung Min
    Lee, Sang Yup
    Kim, Bongsoo
    Choi, Yang-Kyu
    [J]. NANOTECHNOLOGY, 2009, 20 (23)
123