TiO2 Nanoring/Nanotube Hierarchical Structure Growth Mechanism and Optical Absorption Property

doi:10.15541/jim20170061

Abstract

Abstract:

On the top of TiO₂ nanotube arrays, nanograss structure may be generated due to electrolyte composition, the oxidizing condition and the size of nanotube in anodic oxidation process. TiO₂ nanoring/nanotube hierarchical structure with smooth surface was fabricated by two-step anodic oxidation. Growth mechanism and optical absorption properties of the resulting TiO₂ nanoring/nanotube hierarchical structure were investigated by controlling oxidation time of the anodic oxidation. The results show that the growth of nanotubes is limited by regular hexagonal nanocaves on the surface of Ti substrate during the second step of anodization resulting in formation of TiO₂ nanoring/nanotube hierarchical structure. Meanwhile, the nanorings provide the support of their internal nanotubes to avoid formation of nanograss structure. Absorption spectrum of TiO₂ nanoring/nanotube hierarchical structure exhibits oscillating peaks in visible light region, due to the interference between lights reflected from the top of nanorings and the bottom of Ti substrate. Based on the relationship between oscillation peaks shape and film thickness, the maximum optical penetration depth of TiO₂ nanoring/nanotube hierarchical structure is estimated to be ~2 μm.

Key words: TiO₂, nanotube, hierarchical structure, growth mechanism, oscillation peaks

CLC Number:

TK511

ZHAO Yang-Bo, SANG Li-Xia. TiO₂ Nanoring/Nanotube Hierarchical Structure Growth Mechanism and Optical Absorption Property[J]. Journal of Inorganic Materials, 2017, 32(12): 1327-1331.

Figures/Tables 6

Fig. 1 Top and cross-sectional (insert) morphologies of TiO2 nanotube arrays grown for different oxidation time(a) 20 V-20 min; (b) 20 V-30 min; (c) 20 V-60 min; (d) 20 V-100 min

Fig. 2 (a) SEM image and (b) schematic diagram of nanograss

Fig. 3 Morphology of the remaining surface after removal of the TiO2 nanotube array

Fig. 4 Top and cross-sectional (insert) morphologies of TiO2 nanoring/nanotube hierarchical structure grown at different oxidation time in the second step anodization(a) 60 V-1 h/20 V-20 min; (b) 60 V-1 h/20 V-30 min; (c) 60 V-1 h/20 V-60 min; (d) 60 V-1 h/20 V-100 min

Fig. 5 Growth schematic of TiO2 nanoring/nanotube hierarchical structure in the second step anodization

Fig. 6 UV-Vis DRS of (a) TiO2 nanotube arrays and (b) TiO2 nanoring/nanotube hierarchical structure grown for different oxidation time

References 21

[1]	SANG L X, ZHAO Y X, BURDA C.TiO2 nanoparticles as functional building blocks.Chemical Reviews, 2014, 114(19): 9283-9318.
[2]	SHANKAR K, MOR G K, FITZGERALD A,et al. Cation effect on the electrochemical formation of very high aspect ratio TiO2 nanotube arrays in formamide-water mixtures. The Journal of Physical Chemistry C, 2007, 111(1): 21-26.
[3]	KIM D, GHICOV A, SCHMUKI P.TiO2 Nanotube arrays: elimination of disordered top layers (“nanograss”) for improved photoconversion efficiency in dye-sensitized solar cells.Electrochemistry Communications, 2008, 10(12): 1835-1838.
[4]	MENG X, LEE T Y, CHEN H,et al Fabrication of free standing anodic titanium oxide membranes with clean surface using recycling process.Journal of Nanoscience and Nanotechnology, 2010, 10(7): 4259-4265.
[5]	SONG Y Y, LYNCH R, KIM D,et al. TiO2 nanotubes: efficient suppression of top etching during anodic growth key to improved high aspect ratio geometries. Electrochemical and Solid-State Letters, 2009, 12(7): C17-C20.
[6]	ZHANG Z, HOSSAIN M F, TAKAHASHI T.Photoelectrochemical water splitting on highly smooth and ordered TiO2 nanotube arrays for hydrogen generation.International Journal of Hydrogen Energy, 2010, 35(16): 8528-8535.
[7]	WANG F, LIU Y, DONG W,et al. Tuning TiO2 photoelectrochemical properties by nanoring/nanotube combined structure. The Journal of Physical Chemistry C, 2011, 115(30): 14635-14640.
[8]	ANITHA V C, BANERJEE A N, JOO S W,et al Fabrication of hierarchical porous anodized titania nano-network with enhanced active surface area: ruthenium-based dye adsorption studies for dye-sensitized solar cell (DSSC) application.Journal of Industrial and Engineering Chemistry, 2015, 29: 227-237.
[9]	ZHANG Z, ZHANG L, HEDHILI M N,et al. Plasmonic gold nanocrystals coupled with photonic crystal seamlessly on TiO2 nanotube photoelectrodes for efficient visible light photoelectrochemical water splitting. Nano Letters, 2012, 13(1): 14-20.
[10]	ROY P, BERGER S, SCHMUKI P.TiO2 nanotubes: synthesis and applications.Angewandte Chemie, 2011, 50(13): 2904-2939.
[11]	BERGER S, KUNZE J, SCHMUKI P,et al. Influence of water content on the growth of anodic TiO2 nanotubes in fluoride- containing ethylene glycol electrolytes. Journal of The Electrochemical Society, 2010, 157(1): C18-C23.
[12]	WANG X, ZHANG S, SUN L.A two-step anodization to grow high-aspect-ratio TiO2 nanotubes.Thin Solid Films, 2011, 519(15): 4694-4698.
[13]	MOR G K, VARGHESE O K, PAULOSE M,et al. A review on highly ordered, vertically oriented TiO2 nanotube arrays: fabrication, material properties, and solar energy applications. Solar Energy Materials and Solar Cells, 2006, 90(14): 2011-2075.
[14]	MACAK J M, TSUCHIYA H, GHICOV A,et al. TiO2 nanotubes: self-organized electrochemical formation, properties and applications. Current Opinion in Solid State and Materials Science, 2007, 11(1): 3-18.
[15]	ZHAO Z, ZHANG X, ZHANG G,et al. Effect of defects on photocatalytic activity of rutile TiO2 nanorods. Nano Research, 2015, 8(12): 4061-4071.
[16]	ZUO F, WANG L, WU T,et al. Self-doped Ti3+ enhanced photocatalyst for hydrogen production under visible light. Journal of the American Chemical Society, 2010, 132(34): 11856-11857.
[17]	WANG H, YOU T, SHI W,et al. Au/TiO2/Au as a plasmonic coupling photocatalyst. The Journal of Physical Chemistry C, 2012, 116(10): 6490-6494.
[18]	CHIARELLO G, TEALDI C, MUSTARELLI P,et al. Fabrication of Pt/Ti/TiO2 photoelectrodes by RF-magnetron sputtering for separate hydrogen and oxygen production. Materials, 2016, 9(4): 279.
[19]	MUTITU J G, SHI S, BARNETT A,et al Hybrid dielectric- metallic back reflector for amorphous silicon solar cells.Energies, 2010, 3(12): 1914-1933.
[20]	SANG L X, ZHANG Z Y, MA C F.Photoelectrical and charge transfer properties of hydrogen-evolving TiO2 nanotube arrays electrodes annealed in different gases.International Journal of Hydrogen Energy, 2011, 36(8): 4732-4738.
[21]	TSUI L K, ZANGARI G.Titania nanotubes by electrochemical anodization for solar energy conversion.Journal of the Electrochemical Society, 2014, 161(7): D3066-D3077.

TiO₂ Nanoring/Nanotube Hierarchical Structure Growth Mechanism and Optical Absorption Property

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