Relevant bibliographies by topics / TiO2 nanotube

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'TiO2 nanotube'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 June 2025

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Journal articles on the topic "TiO2 nanotube"

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Yang, Yang, Xiao Hui Wang, and Long Tu Li. "Zinc-Doped TiO2 Nanotube Arrays." Key Engineering Materials 434-435 (March 2010): 446–47. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.446.

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Zinc-doped TiO2 nanotube arrays were fabricated by immersing TiO2 nanotube arrays in zinc-containing solution for hours. And subsequent heat-treatment was crucial for Zn2+ coming into the crystal lattice of TiO2 nanotubes. TEM analysis was used as main technique to investigate the structure of zinc-doped TiO2 nanotubes, and found that the Zn2+ ions only combine into the lattice of TiO2 nanotubes. This kind of doping can change the valence structure in the surface of TiO2 nanotube array. The obtained zinc-doped TiO2 nanotube arrays have potential application in photocatalysis.
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Kim, Wan Tae, Jae Kwan Lee, In San Jang, Dong Soon Choi, and Won Youl Choi. "Surface Improvement of TiO2 Nanotube Arrays for Dental Implant." Applied Mechanics and Materials 864 (April 2017): 78–83. http://dx.doi.org/10.4028/www.scientific.net/amm.864.78.

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Highly ordered TiO2 nanotube arrays are very attractive to the dental implant due to microstructural advantage for drug loading. We have fabricated the highly ordered TiO2 nanotube arrays on the surface of the dental implant. The surface of TiO2 nanotube arrays grown by normal anodic oxidation was not clean and the window of TiO2 nanotube was closed. These closed nanotubes decrease the surface area to load the drug and also decrease the osseointegration performances. To obtain the clean surface of TiO2 nanotube arrays, two-step anodic oxidation was used. The microstructures of TiO2 nanotube arrays from two-step anodic oxidation were compared with those from normal anodic oxidation. The length and diameter of TiO2 nanotube arrays with anodizing time were measured. TiO2 nanotube arrays grown by two-step anodic oxidation had the clean surface and the diameter of TiO2 nanotubes was ~100 nm at anodizing conditions of 60V and 20 min. It was applied to the surface of dental implant to improve the osseointegration. The improved osseointegration was observed by micro CT analysis. TiO2 nanotube arrays had a promising microstructure to load some drugs such as BMP-2 and anti-inflammatory.
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Qu, Xiao Fei, Jing Jun Yuan, Xi Da Deng, Yu Chen Hou, Yu Fei Wang, and Hong Bing Song. "An Efficient Method to Form TiO2/CdS Nanotube Arrays Using Anodic Aluminum Oxide (AAO) Templates." Key Engineering Materials 727 (January 2017): 374–80. http://dx.doi.org/10.4028/www.scientific.net/kem.727.374.

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In this paper, a simple, efficient and environmental friendly method was proposed to fabricate TiO2/CdS nanotube arrays. The composite nanotubes with a core-shell coaxial structure were fabricated via a simple method of liquid deposition and double diffusion using anodic aluminum oxide (AAO) templates. The photocatalytic properties of the nanotube arrays (TiO2, TiO2/CdS) were confirmed by the degradation of methyl orange (MO) under UV irradiation. Compared to bare TiO2 nanotube arrays, TiO2/CdS composite nanotube arrays showed improved photocatalytic performance: The degradation efficiency of TiO2/CdS and TiO2 nanotube arrays towards methyl orange was 65% and 39%, respectively.
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Kobayashi, Masahiko, Aous A. Abdulmajeed, Jongyun Moon, et al. "The Effect of Ultraviolet Treatment on TiO2 Nanotubes: A Study of Surface Characteristics, Bacterial Adhesion, and Gingival Fibroblast Response." Metals 12, no. 1 (2022): 80. http://dx.doi.org/10.3390/met12010080.

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Titanium dioxide (TiO2) nanotubes are emerging as a provocative target for oral implant research. The aim of this study was to evaluate the effect of UV on the wettability behavior, bacterial colonization, and fibroblast proliferation rate of TiO2 nanotube surfaces prepared using different anodization voltages and aimed for use as implant abutment materials. Four different experimental materials were prepared: (1) TiO2 nanotube 10 V; (2) TiO2 nanotube 15 V; (3) TiO2 nanotube 20 V; and (4) commercial pure titanium as a control group. TiO2 nanotube arrays were prepared in an aqueous electrolyte solution of hydrofluoric acid (HF, 0.5 vol.%). Different anodization voltages were used to modify the morphology of the TiO2 nanotubes. Equilibrium contact angles were measured using the sessile drop method with a contact angle meter. The investigated surfaces (n = 3) were incubated at 37 °C in a suspension of Streptococcus mutans (S. mutans) for 30 min for bacterial adhesion and 3 days for biofilm formation. Human gingival fibroblasts were plated and cultured on the experimental substrates for up to 7 days and the cell proliferation rate was assessed using the AlamarBlue assayTM (BioSource International, Camarillo, CA, USA). The data were analyzed using one-way ANOVA followed by Tukey’s post-hoc test. Water contact angle measurements on the TiO2 after UV treatment showed an overall hydrophilic behavior regardless of the anodization voltage. The ranking of the UV-treated surfaces of experimental groups from lowest to highest for bacterial adhesion was: TiO2 nanotube 20 V < Ti and TiO2 nanotube 15 V < TiO2 nanotube 10 V (p < 0.05), and for bacterial biofilm formation was: TiO2 nanotube 20 V-TiO2 nanotube 10 V < Ti-TiO2 nanotube 15 V (p < 0.05). Fibroblast cell proliferation was lower on TiO2 nanotube surfaces throughout the incubation period and UV light treatment showed no enhancement in cellular response. UV treatment enhances the wettability behavior of TiO2 nanotube surfaces and could result in lower bacterial adhesion and biofilm formation.
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Li, Yun, Nan Nan Wang, Hai Feng Cheng, Yong Jiang Zhou, and Ting Ting Li. "Microstructure Evolution of Hybrid TiO2 Nanowire-Nanotube Structure Fabricated by Anodization." Materials Science Forum 852 (April 2016): 428–32. http://dx.doi.org/10.4028/www.scientific.net/msf.852.428.

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Hybrid TiO2 nanowire–nanotube structure was synthesized by a facile anodization on Ti substrate. To study the origin and evolution of TiO2 nanotubes, the morphology of TiO2 nanotubes was investigated. It was found that nanotubes corrode gradually into nanowires, and the critical time was about 8.5 h after the beginning of anodization. Uniform nanotubes were obtained by ultrasonic cleaning. It was demonstrated experimentally that the inner diameter of TiO2 nanotube increased with the extension of anodization time, but the outer diameter of TiO2 nanotubes, which were fabricated under different anodization time, was almost the same.
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Marinko, Živa, Luka Suhadolnik, Zoran Samardžija, Janez Kovač, and Miran Čeh. "The Influence of a Surface Treatment of Metallic Titanium on the Photocatalytic Properties of TiO2 Nanotubes Grown by Anodic Oxidation." Catalysts 10, no. 7 (2020): 803. http://dx.doi.org/10.3390/catal10070803.

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Titanium dioxide (TiO2) nanotubes obtained by the anodic oxidation of titanium metal foils can be used for the photocatalytic degradation of organic pollutants. The aim of our study was to determine the influence of the titanium foil’s surface treatment on the final morphology of the TiO2 nanotubes and their photocatalytic activity. In our experiments, we used two different titanium foils that were electropolished or untreated prior to the anodic oxidation. The morphologies of the starting titanium foils and the resulting TiO2 nanotube layers were investigated and the photocatalytic activities measured by the decomposition of caffeine under UV irradiation. Our results showed that electropolishing of the starting foils produced a more uniform and smoother TiO2 nanotubes surface. In contrast, the TiO2 nanotube surfaces from untreated titanium foils mimic the initial surface roughness of the titanium foil. A comparison of the photocatalytic properties of the TiO2 nanotube layers obtained from the untreated and electropolished titanium foils showed that electropolishing does not necessarily improve the photocatalytic properties of the resulting TiO2 nanotube layer. It was found that the determining factors influencing the photocatalytic activity are the chemical impurities (Ti-nitride) on the surface of the titanium foils and the surface roughness of the TiO2 nanotube layer. The highest photocatalytic activity was achieved with the anodized untreated foil with the minimal presence of Ti-nitride and a relatively high roughness of the TiO2 nanotubes.
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Xiao, Xiu Feng, Hai Zhen Tang, Ke Guan Ouyang, and Rong Fang Liu. "The Effect of Bath Temperature on the Adhesive Strength and Bioactivity of TiO2 Nanotube Arrays." Advanced Materials Research 549 (July 2012): 724–28. http://dx.doi.org/10.4028/www.scientific.net/amr.549.724.

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The effect of bath temperature on the morphologies, crystallographic structure and adhesive strength of TiO2 nanotube arrays fabricated by electrochemical anodization of titanium in dimethyl sulfoxide containing hydrofluoric acid electrolyte were studied in this paper. The results show that the crystalline anatase TiO2 nanotube arrays can be directly fabricated at the bath temperature above 50oC without further annealing. The crystallinity of anatase at the top of nanotubes is higher than that at the bottom of nanotubes. The bath temperature has obviously impact on the surface morphology of the titanium substrate underneath the nanotube arrays. The adhesive strength of TiO2 nanotube arrays increases with the rise of bath temperature increasing, and reaches 11.3 MPa when TiO2 nanotube arrays are fabricated at 60 oC.
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Yin, Yu Xin, Xin Tan, and Feng Hou. "NaAc Effect on the Anodization Formation of TiO2 Nanotube Arrays in Glycerol Based Electrolytes." Advanced Materials Research 105-106 (April 2010): 371–75. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.371.

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Effect of NaAc on the anodic growth of TiO2 nanotube arrays is described. NaAc-added approach yields longer nanotubes relative to samples grown from NaAc-free electrolyte. And the growth rate of TiO2 nanotubes has pH independency in NaAc-added electrolytes. The key to achieve a high aspect ratio TiO2 nanotube arrays is to decrease the chemical dissolution rate at the mouth of the tube by adding NaAc as protective coating. Adsorption of Ac- species on the TiO2 surface is shown to markedly decrease the chemical dissolution rate of the tube mouth, resulting in longer nanotube length.
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Lin, Jianguo, Wenhao Cai, Qing Peng, Fanbin Meng, and Dechuang Zhang. "Preparation of TiO2 Nanotube Array on the Pure Titanium Surface by Anodization Method and Its Hydrophilicity." Scanning 2021 (December 26, 2021): 1–7. http://dx.doi.org/10.1155/2021/2717921.

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In this work, a highly ordered TiO2 nanotube array on pure titanium (Ti) was prepared by anodization. The effects of the applied voltage and anodization time on the microstructure of the TiO2 nanotube arrays were investigated, and their hydrophilicity was evaluated by the water contact angle measurement. It was found that a highly ordered array of TiO2 nanotubes can be formed on the surface of pure Ti by anodized under the applied voltage of 20 V and the anodization time in the range of 6-12 h, and the nanotube diameter and length can be regulated by anodization time. The as-prepared TiO2 nanotubes were in an amorphous structure. After annealing at 550°C for 3 h, the amorphous TiO2 can be transformed to the anatase TiO2 through crystallization. The anatase TiO2 array exhibited a greatly improved hydrophilicity, depending on the order degree of the array and the diameter of the nanotubes. The sample anodized at 20 V for 12 h and then annealed at 550°C for 3 h exhibited a superhydrophilicity due to its highly ordered anatase TiO2 nanotube array with a tube diameter of 103.5 nm.
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Sreekantan, Srimala, E. Pei San, Chin Wei Lai, and Warapong Kregvirat. "Nanotubular Transition Metal Oxide for Hydrogen Production." Advanced Materials Research 364 (October 2011): 494–99. http://dx.doi.org/10.4028/www.scientific.net/amr.364.494.

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TiO2, transition metal oxide nanotubes were successfully grown by anodizing of titanium foil (Ti) in ethylene glycol electrolyte containing 5wt % hydrogen peroxide and 5wt % ammonium fluoride for 60 minutes at 60V. It was found such electrochemical condition resulted in the formation of nanotube with average diameter of 90nm and length of 6.6 µm. These samples were used to study the effect of W loading by RF sputtering on TiO2 nanotubes. Amorphous TiO2 nanotube substrate leads to enhance incorporation of W instead of anatase. Therefore for the entire study, W was sputtered on amorphous TiO2 nanotube substrate. TiO2 nanotube sputtered below 1 minute resulted in the formation of W-O-Ti while beyond this point; it accumulates to form a self-independent structure of WO3 on the surface of the nanotubes. TiO2 nanotube sputtered for 1minute at 100W and annealed at 450°C exhibited best photocurrent density (1.4 mA/cm2) with photoconversion efficiency of 2.5%. The reason for such behavior is attributed to W6+ ions allows for electron traps that suppress electron-hole recombination and exploit the lower band gap of material to produce a water splitting process by increasing the charge separation and extending the energy range of photoexcitation for the system.
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Dissertations / Theses on the topic "TiO2 nanotube"

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Cummings, Franscious Riccardo. "TiO2 nanotube based dye- sensitised solar cells." University of Western Cape, 2012. http://hdl.handle.net/11394/3311.

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Philosophiae Doctor - PhD<br>This work investigated the synthesis of Al2O3-coated TiO2 nanotubes via the anodisation technique for application in DSCs. TiO2 nanotube arrays with an average length of 15 μm, diameter of 50 nm and wall thickness of 15 nm were synthesised via anodisation using an organic neutral electrolyte consisting of 2 M H2O + 0.15 M NH4F + ethylene glycol (EG) at an applied voltage of 60 V for 6 hours. In addition, scanning electron microscope (SEM) micrographs showed that anodisation at these conditions yields nanotubes with smooth walls and hexagonally shaped, closed bottoms. X-ray diffraction (XRD) patterns revealed that the as-anodised nanotubes were amorphous and as such were annealed at 450 °C for 2 hours in air at atmospheric pressure, which yielded crystalline anatase TiO2 nanotubes. Highresolution transmission electron microscope (TEM) images revealed that the nanotube walls comprised of individual nano-sized TiO2 crystallites. Photoluminescence (PL) spectroscopy showed that the optical properties, especially the bandgap of the TiO2 nanotubes are dependent on the crystallinity, which in turn was dependent on the structural characteristics, such as the wall thickness, diameter and length. The PL measurements were supplemented by Raman spectra, which revealed an increased in the quantum confinement of the optical phonon modes of the nanotubes synthesised at low anodisation voltages, consequently yielding a larger bandgap The annealed nanotubes were then coated with a thin layer of alumina (Al2O3) using a simple sol-gel dip coating method, effectively used to coat films of nanoparticles. Atomic force microscopy (AFM) showed that the average nanotube diameter increased post sol-gel deposition, which suggests that the nanotubes are coated with a layer of Al2O3. This was confirmed with HR-TEM, in conjunction with selected area electron diffraction (SAED) and XRD analyses, which showed the coating of the nanotube walls with a thin layer of amorphous Al2O3 with a thickness between 4 and 7 nm. Ultraviolet-visible (UVvis) absorbance spectra showed that the dye-adsorption ability of the nanotubes are enhanced by the Al2O3 coating and hence is a viable material for solar cell application. Upon application in the DSC, it was found by means of photo-current density – voltage (I – V) measurements that a DSC fabricated with a 15 μm thick layer of bare TiO2 nanotubes has a photon-to-light conversion efficiency of 4.56%, which increased to 4.88% after coating the nanotubes with a layer of alumina. However, these devices had poorer conversion efficiencies than bare and Al2O3-coated TiO2 nanoparticle based DSCs, which boasted with efficiencies of 6.54 and 7.26%, respectively. The low efficiencies of the TiO2 nanotube based DSCs are ascribed to the low surface area of the layer of nanotubes, which yielded low photocurrent densities. Electrochemical impedance spectroscopy (EIS) showed that the electron lifetime in the alumina coated nanotubes are almost 20 times greater than in a bare layer of nanoparticles. In addition, it was also found that the charge transfer resistance at the interface of the TiO2/dye/electrolyte is the lowest for an Al2O3-coated TiO2 layer.
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Noeiaghaei, Tahereh. "Advanced treatment of wastewater effluents by multi-functional carbon nanotube-TiO2 nanotube membranes." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12846.

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Recently, the coupling of TiO2-photocatalysis with a membrane separation process has been perceived as a powerful tool for the recycling of wastewater effluents. While the membrane has the simultaneous task of supporting the photocatalyst as well as acting as a selective barrier for the species to be degraded, the photocatalyst degrades the organic compounds with the added advantage of mitigating membrane fouling. The focus of this thesis is to combine the specific features of TiO2 nanotubes with the unique properties of CNTs to design a multi-functional membrane for the enhanced removal of effluent organic matters (EfOMs) in wastewater effluents. Firstly, the kinetics of photocatalytic degradation of model organic compounds by TiO2 NPs were studied, and the experimental conditions for the enhancement of photocatalytic degradation efficiency were optimised. The photocatalytic reactivity and stability of TiO2 NPs were affected in the presence of natural organic matter (NOM). Secondly, TiO2 nanotube arrays (TNAs) were successfully fabricated via anodic oxidation of Ti substrates and their geometrical characteristics were optimised by controlling the synthesis parameters for enhancement of the photocatalytic removal efficiency of model organic compounds. Finally, multi-functional CNT/TiO2 nanotube membranes were fabricated via chemical vapour deposition (CVD) and anodic growth of TNAs on a porous Ti sheet. The performance of the hybrid CNT/TiO2 nanotube membrane (CNT/TNM) for removal of 4CBA was experimentally evaluated in a continuous filtration system under UV-A irradiation. The surface properties and the performance of the TNM were notably influenced by incorporation of CNTs. The CNT/TNM showed enhanced performance in removal of model compound compared to the TNM, which was attributed to the higher adsorption capacity of well-incorporated CNT/TNM.
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Xu, Yanan. "Characterization of mechanical behaviour of TiO2 nanotube array." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/96480/1/Yanan_Xu_Thesis.pdf.

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This thesis presents a comprehensive investigation on mechanical behaviour of TiO2 nanotube arrays. Experimental investigation and numerical simulations have been carried out to understand the mechanical behaviour of single nanotube, micron-sized nanotube pillar and nanotube arrays. The deformation and failure mechanisms and their dependence on loading conditions are discussed. The outcomes of this work will be beneficial to future development of TiO2 nanotube arrays and other nanostructures.
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Tshaka, Anele. "Synthesis of One-Dimensional TiO2 Nanotube Arrays by Potentiostatic Anodisation." University of the Western Cape, 2017. http://hdl.handle.net/11394/6198.

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Magister Scientiae - MSc (Microbiology)<br>TiO2 nanomaterials, in particular nanotubes, are some of the most studied materials, as they are considerably important in technological and biological applications due to their unique electronic properties and biocompatibility. For example, vertically aligned TiO2 nanotubes play a crucial role in photovoltaics as they enhance the charge separation as a result of their excellent photo-catalytic properties in the presence of organic dye molecules, and provide a superior one-dimensional transport route compared to nanoparticle films. There are numerous techniques used to synthesise TiO2 nanotubes, such as chemical vapor deposition (CVD), template based techniques, anodisation, to name but a few. However, due to its non-toxicity environmental friendliness and cost-effectiveness, anodisation is the most common technique to synthesise TiO2 nanotubes. In addition anodisation allows for control over the morphology when tailoring the anodisation parameters such as voltage, concentration, temperature and duration. It is well-documented that the as-synthesised TiO2 nanotubes via anodisation technique are amorphous and require post-treatment at elevated temperature (above 280 degrees C) to induce crystallinity into anatase phase. Further increase in annealing temperature results in crystallisation in either rutile or mixed phase structure.
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Larue, Camille. "Impact de nanoparticules de TiO2 et de nanotubes de carbone sur les végétaux." Phd thesis, AgroParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00765312.

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Dans le contexte du développement exponentiel des nanotechnologies, les nanomatériaux sont susceptibles de se disséminer dans l'environnement. Les végétaux sont un élément sensible des écosystèmes car ils constituent une interface entre l'eau, le sol et l'air et se situent à la base de la chaine trophique. Cette étude avait pour but d'évaluer l'impact des nanoparticules de TiO2 et des nanotubes de carbone sur les végétaux, et plus particulièrement sur le blé et le colza. L'accent a également était mis sur la caractérisation des nanomatériaux employés. Nous avons mis en évidence l'accumulation racinaire et le transfert vers les feuilles des nanoparticules de TiO2 et des NTC dans le blé et le colza après une exposition en hydroponie. Les nanoparticules de TiO2 sont également accumulées dans les plantes lors d'une exposition racinaire sur sol ou encore lors d'une exposition par voie aérienne. Les nanoparticules de TiO2 s'accumulent dans les végétaux à hauteur de quelques dizaines voire centaines de mg Ti/kg MS, leur phase cristalline n'est pas modifiée et ces nanoparticules ne se dissolvent pas lors de leur transfert dans le végétal. Les NTC s'accumulent en plus faible quantité (centaines de µg NTC/kg MS) et il semble qu'ils soient altérés par le contact avec le végétal. Ces nanomatériaux affectent peu le développement des végétaux. Sur huit tests réalisés, seule l'élongation racinaire s'est révélée être un critère sensible, avec une induction de l'élongation pour les NPs et les NTC présentant le plus faible diamètre nominal. Enfin, une nette influence du diamètre nominal des nanomatériaux a pu être mise en évidence, contrôlant ainsi leur internalisation, leur transfert et leurs effets biologiques sur les végétaux.
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Madian, M., M. Klose, Tony Jaumann, et al. "Anodically fabricated TiO2–SnO2 nanotubes and their application in lithium ion batteries." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-225719.

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Developing novel electrode materials is a substantial issue to improve the performance of lithium ion batteries. In the present study, single phase Ti–Sn alloys with different Sn contents of 1 to 10 at% were used to fabricate Ti–Sn–O nanotubes via a straight-forward anodic oxidation step in an ethylene glycol-based solution containing NH4F. Various characterization tools such as SEM, EDXS, TEM, XPS and Raman spectroscopy were used to characterize the grown nanotube films. Our results reveal the successful formation of mixed TiO2/SnO2 nanotubes in the applied voltage range of 10–40 V. The as-formed nanotubes are amorphous and their dimensions are precisely controlled by tuning the formation voltage which turns Ti–Sn–O nanotubes into highly attractive materials for various applications. As an example, the Ti–Sn–O nanotubes offer promising properties as anode materials in lithium ion batteries. The electrochemical performance of the grown nanotubes was evaluated against a Li/Li+ electrode at a current density of 504 μA cm−2. The results demonstrate that TiO2/SnO2 nanotubes prepared at 40 V on a TiSn1 alloy substrate display an average 1.4 fold increase in areal capacity with excellent cycling stability over more than 400 cycles compared to the pure TiO2 nanotubes fabricated and tested under identical conditions. This electrode was tested at current densities of 50, 100, 252, 504 and 1008 μA cm−2 exhibiting average capacities of 780, 660, 490, and 405 μA cm−2 (i.e. 410, 345, 305 and 212 mA h g−1), respectively. The remarkably improved electrochemical performance is attributed to enhanced lithium ion diffusion which originates from the presence of SnO2 nanotubes and the high surface area of the mixed oxide tubes. The TiO2/SnO2 electrodes retain their original tubular structure after electrochemical cycling with only slight changes in their morphology.
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Tsai, Hei-lok, and 蔡希樂. "Parametric study on the fabrication and modification of TiO2 nanotube arrays for photoeletrocatalytic degradation of organic pollutants." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45160259.

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Madian, M., M. Klose, Tony Jaumann, et al. "Anodically fabricated TiO2–SnO2 nanotubes and their application in lithium ion batteries." Royal Society of Chemistry, 2016. https://tud.qucosa.de/id/qucosa%3A30351.

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Developing novel electrode materials is a substantial issue to improve the performance of lithium ion batteries. In the present study, single phase Ti–Sn alloys with different Sn contents of 1 to 10 at% were used to fabricate Ti–Sn–O nanotubes via a straight-forward anodic oxidation step in an ethylene glycol-based solution containing NH4F. Various characterization tools such as SEM, EDXS, TEM, XPS and Raman spectroscopy were used to characterize the grown nanotube films. Our results reveal the successful formation of mixed TiO2/SnO2 nanotubes in the applied voltage range of 10–40 V. The as-formed nanotubes are amorphous and their dimensions are precisely controlled by tuning the formation voltage which turns Ti–Sn–O nanotubes into highly attractive materials for various applications. As an example, the Ti–Sn–O nanotubes offer promising properties as anode materials in lithium ion batteries. The electrochemical performance of the grown nanotubes was evaluated against a Li/Li+ electrode at a current density of 504 μA cm−2. The results demonstrate that TiO2/SnO2 nanotubes prepared at 40 V on a TiSn1 alloy substrate display an average 1.4 fold increase in areal capacity with excellent cycling stability over more than 400 cycles compared to the pure TiO2 nanotubes fabricated and tested under identical conditions. This electrode was tested at current densities of 50, 100, 252, 504 and 1008 μA cm−2 exhibiting average capacities of 780, 660, 490, and 405 μA cm−2 (i.e. 410, 345, 305 and 212 mA h g−1), respectively. The remarkably improved electrochemical performance is attributed to enhanced lithium ion diffusion which originates from the presence of SnO2 nanotubes and the high surface area of the mixed oxide tubes. The TiO2/SnO2 electrodes retain their original tubular structure after electrochemical cycling with only slight changes in their morphology.
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Vesna, Despotović. "Fotolitička i fotokatalitička razgradnja odabranih herbicida u vodenoj sredini." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=86616&source=NDLTD&language=en.

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Ispitana je kinetika i mehanizam fotokatalitičke&nbsp;razgradnje herbicida kvinmeraka i klomazona u prisustvu&nbsp;UV/TiO<sub>2</sub>&nbsp; Degussa P25, odnosno piklorama i&nbsp; klopiralida&nbsp;primenom UV/TiO<sub>2</sub>&nbsp; Wackherr pri različitim&nbsp;eksperimentalnim uslovima. Praćena je i kinetika&nbsp;razgradnje odabranih herbicida direktnom fotolizom uz&nbsp;primenu sunčevog, UV i vidljivog zračenja, kao i u&nbsp;odsustvu svetlosti. Pored toga, upoređena je efikasnost&nbsp;UV/TiO<sub>2</sub>&nbsp; Degussa P25, odnosno UV/TiO<sub>2</sub>&nbsp; Wackherr sa&nbsp;vidljivim zračenjem, kao i direktnom fotolizom u&nbsp;prisustvu pomenutih izvora svetlosti.&nbsp; U cilju procene&nbsp;citotoksičnosti klomazona i klopiralida, kao i sme&scaron;e&nbsp;klomazona i klopiralida i njihovih intermedijera nastalih&nbsp;tokom fotokatalitičke razgradnje ispitan je&nbsp; in vitro&nbsp; rast&nbsp;ćelijskih linija&nbsp; MRC-5 i H-4-II-E.&nbsp; Nakon ispitivanja&nbsp;fotokatalitičke razgradnje odabranih herbicida u dvaput&nbsp;destilovanoj vodi, praćena je njihova razgradnja i u&nbsp;prirodnim vodama. Takođe, ispitan je uticaj dodatka&nbsp;hidrogenkarbonata i huminske kiseline na efikasnost&nbsp;razgradnje odabranih herbicida. Fotokatalitička razgradnja&nbsp;klomazona, piklorama i mekopropa je ispitivana i u&nbsp;prisustvu UV/TiO<sub>2</sub>&nbsp; nanocevi. Aktivnost katalizatora TiO<sub>2&nbsp;</sub>Wackherr&nbsp; i TiO<sub>2</sub>&nbsp; nanocevi je upoređena sa TiO<sub>2</sub>&nbsp; Degussa&nbsp;P25.<br>The kinetics and mechanism of photocatalytic degradation&nbsp;of the herbicides quinmerac and clomazone in the&nbsp;presence of UV/TiO<sub>2</sub>&nbsp; Degussa P25, and of picloram and&nbsp;clopyralid using UV/TiO<sub>2</sub>&nbsp; Wackherr under different&nbsp;experimental conditions were studied. The kinetics of&nbsp;degradation of selected herbicides by direct photolysis&nbsp;using sunlight, UV and visible radiation, and in the&nbsp;absence of light were followed. In addition, the&nbsp;efficiencies of UV/TiO<sub>2</sub>&nbsp; Degussa P25 and UV/TiO<sub>2&nbsp;</sub>Wackherr &nbsp;were compared with visible radiation and direct&nbsp;photolysis in the presence of the above mentioned light&nbsp;sources. In order to evaluate the cytotoxicity of clomazone&nbsp;and clopyralid alone and in their mixture with&nbsp;intermediates formed during the photocatalytic&nbsp;degradation, in vitro growth of cell lines, MRC-5 and H-4-II-E was followed. After examining&nbsp; the photocatalytic&nbsp;degradation of selected herbicides in double distilled&nbsp;water, their decomposition in natural waters was also&nbsp;followed. Also, the influence of hydrogencarbonate and&nbsp;humic acid addition on the efficiency of degradation of&nbsp;selected herbicides was studied. Photocatalytic&nbsp;degradations of clomazone, picloram and mecoprop were&nbsp;investigated in the presence of UV/TiO<sub>2&nbsp;</sub>nanotubes. Activities of the catalysts TiO<sub>2</sub>&nbsp; Wackherr and TiO<sub>2&nbsp;</sub>nanotubes were compared to TiO<sub>2</sub> Degussa P25.
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Su, Lusheng. "Formation Mechanism and Thermoelectric Energy Conversion of Titanium Dioxide Nanotube Based Multi-Component Materials and Structures." University of Toledo / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1370793126.

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Books on the topic "TiO2 nanotube"

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Grimes, Craig A., and Gopal K. Mor. TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5.

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Grimes, Craig A. TiO2 nanotube arrays: Synthesis, properties, and applications. Springer, 2009.

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Grimes, Craig A., and Gopal K. Mor. TiO2 Nanotube Arrays: Synthesis, Properties, and Applications. Springer, 2018.

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Grimes, Craig A. A., and Gopal K. Mor. TiO2 Nanotube Arrays: Synthesis, Properties, and Applications. Springer, 2014.

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Book chapters on the topic "TiO2 nanotube"

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Roy, Partha, and Hemant Joshi. "TiO2 Nanotube." In Eco-Materials and Green Energy for a Sustainable Future. CRC Press, 2024. http://dx.doi.org/10.1201/9781003473749-16.

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Grimes, Craig A., and Gopal K. Mor. "Fabrication of TiO2 Nanotube Arrays by Electrochemical Anodization: Four Synthesis Generations." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_1.

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Grimes, Craig A., and Gopal K. Mor. "Material Properties of TiO2 Nanotube Arrays: Structural, Elemental, Mechanical, Optical and Electrical." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_2.

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Grimes, Craig A., and Gopal K. Mor. "TiO2 Nanotube Arrays: Application to Hydrogen Sensing." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_3.

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Grimes, Craig A., and Gopal K. Mor. "TiO2 Nanotube Arrays: Application to Photoelectrochemical Water Splitting." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_4.

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Grimes, Craig A., and Gopal K. Mor. "Dye-Sensitized and Bulk-Heterojunctions Solar Cells: TiO2 Nanotube Arrays as a Base Material." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_5.

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Grimes, Craig A., and Gopal K. Mor. "Use of TiO2 Nanotube Arrays for Biological Applications." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_6.

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Grimes, Craig A., and Gopal K. Mor. "Conclusions and New Directions." In TiO2 Nanotube Arrays. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0068-5_7.

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Xiao, Fang-Xing, and Bin Liu. "1D TiO2 Nanotube-Based Photocatalysts." In Green Chemistry and Sustainable Technology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48719-8_5.

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Shankar, Karthik. "TiO2 Nanotube Arrays: Growth and Application." In Encyclopedia of Nanotechnology. Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-9780-1_382.

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Conference papers on the topic "TiO2 nanotube"

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Colegrave, Keatin, Mahnaz Alijani, Zahra Sarpanah, Jan M. Macak, and Mohammad H. Zarifi. "Detection of 532nm Laser Light Using a TiO2 Nanotube Integrated Microwave Resonator." In 2023 URSI International Symposium on Electromagnetic Theory (EMTS). IEEE, 2023. https://doi.org/10.1109/emts57498.2023.10925311.

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Farsinezhad, Samira, Prashant Waghmare, Benjamin D. Wiltshire, Saeid Amiri, Sushanta K. Mitra, and Karthik Shankar. "The Wetting Behavior of TiO2 Nanotube Arrays With Perfluorinated Surface Functionalization." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-39395.

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A facile electrochemical anodization method was used for producing hierarchically textured surfaces based on TiO2 nanotubes in two different configurations. It was found that perfluoro-functionalized TiO2 nanotubes exhibit high static contact angles for a variety of liquids such as apolar, polar aprotic and polar protic solvents. Wenzel and Cassie-Baxter theories were applied for theoretical contact angle calculations for the present study. By using Cassie theories, it is shown that a drop of polar liquid was in a fakir or Cassie-Baxter (CB) state on perfluoro-functionalized nanotube surfaces. The fakir state prevents spreading of the liquid on the surface. On the other hand, the wetting of non-polar liquids such as hexane is characterized by either Wenzel states or transition states characterized by partial imbibition that lie in between the CB and Wenzel states.
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Zhang, Qiang, Ranbin Chen, Haisheng San, Guohua Liu, and Kaiying Wang. "Betavoltaic microbatteries using TiO2 nanotube arrays." In TRANSDUCERS 2015 - 2015 18th International Solid-State Sensors, Actuators and Microsystems Conference. IEEE, 2015. http://dx.doi.org/10.1109/transducers.2015.7181324.

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Luo, Zhi-Yong, Dong-Chuan Mo, and Shu-Shen Lyu. "Fluorine-Induced Superhydrophilic TiO2 Nanotube Arrays." In ASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/mnhmt2016-6328.

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Continuous water film formed on a hydrophilic or superhydrophilic surface can delay the formation of a vapor film in boiling and thus improve critical heat flux (CHF), therefore, the fabrication of hydrophilic or superhydrophilic surface is an efficient approach to enhance boiling heat transfer. In the present work, superhydrophilic TiO2 nanotube arrays (TiNAs) interfaces are fabricated by anodization in fluoride contained electrolyte, and the fluorine is found out to be the key factor affecting the wettability of TiNAs interfaces. After anodization, a stable oxy-fluoride layer was formed at the interface as form of -O-Ti-F, the fluorine atoms are linked to the interface as terminal groups. Due to the strong polarity of titanium oxy-fluorides, superhrophilic TiO2 nanotube arrays interface is obtained. Furthermore, we characterize the stability of titanium oxy-fluorides by storing. After store for 2 months, the inner titanium fluorides (TiF4) are lost due to its strong volatility. Fortunately, the content of titanium oxy-fluorides remains the same, and retain its remarkable superhydrophilic properties. It is potential to design energy-efficient devices ranging from boiling heat transfer to self-cleaning.
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Sayago, I., M. Aleixandre, M. C. Horrillo, R. Garriga, A. Kukovecz, and E. Munoz. "Carbon nanotube/TiO2 nanotube hybrid films as resistive gas sensor." In 2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII). IEEE, 2013. http://dx.doi.org/10.1109/transducers.2013.6626835.

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Uddin, M. Jasim, Glenn Grissom, Miguel Leal, et al. "Self-Aligned Carbon Nanotube Yarns for Multifunctional Optoelectronic Applications." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67441.

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In this work, the morphology and electrocatalytic features of carbon nanotube yarns at the structural level allow for enhanced photoconversion efficiency. The energy conversion of electron-hole pairs within the carbon nanotube yarn (CNY) due to the functionalization with nanostructured photoactive TiO2 phases is remarkable. A well oriented anatase TiO2 thin layer (approximately 100 nm) forms at the interfaces of CNY and TiO2 mesoporous film when the sample is precoated and annealed at 350°C. Field Emission Scanning Electron Microscopy (FESEM) images show the integrity and homogeneity of the TiO2 surface, which is indicative of the overall durability of the CNY-based dye sensitized solar cell (DSSC); Coating TiO2 on self-aligned carbon nanotube yarns provides several benefits from their high chemical stability, excellent functionality, nontoxicity and relatively low cost. The maximum photon to current conversion efficiency (ηAM1.5) achieved was 3.1%.
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Ying Zhao, Nils Hoivik, and Kaiying Wang. "Photoconductivity of Au-coated TiO2 nanotube arrays." In 2014 IEEE 14th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2014. http://dx.doi.org/10.1109/nano.2014.6967993.

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Li, Bingbing, Hong-Chao Zhang, and Chris Yuan. "Thermodynamic Analysis of Titanium Dioxide Nanotube Synthesis Process for Sustainability Improvement." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9229.

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Sustainability of nanomanufacturing has triggered tremendous research interest in recent years, especially the energy consumption and environmental impacts of nanomaterial. TiO2 nanotube is a typical material with broad application potential. In this paper a thermodynamic analysis model integrating the energy consumption and exergy losses is presented for sustainability improvement of TiO2 nanotube synthesis process. This thermodynamic model was validated by the TiO2 nanotube electrochemical anodization process. Comparisons of energy consumption, exergy losses and environmental impacts of five main stages showed the effective sustainability improvement potential. This work can be extended to sustainability improvement of other similar nanomaterial synthesis processes.
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Cheng, Hsiu-Yueh, Kai-Chau Chang, Kae-Long Lin, and Chih-Ming Ma. "Study on isopropanol degradation by UV/TiO2 nanotube." In INTERNATIONAL SYMPOSIUM ON MATERIAL SCIENCE AND ENGINEERING 2018: ISMSE 2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5030310.

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Juanru Huang, Xin Tan, Tao Yu, and Tianyu Wu. "Free-standing TiO2 nanotube arrays fabricated by anodization." In 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5988541.

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Reports on the topic "TiO2 nanotube"

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Martin, Joshua J., Mark H. Griep, Anit Giri, et al. Tunable TiO2 Nanotube Arrays for Flexible Bio-Sensitized Solar Cells. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada568684.

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Reyes, Karla, and David Robinson. WO3/TiO2 nanotube photoanodes for solar water splitting with simultaneous wastewater treatment. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1089979.

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Allen, Jan L., Ivan C. Lee, and Jeff Wolfenstine. Biomimetic Approach to Solar Cells Based on TiO2 Nanotubes. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada480572.

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Di Quarto, Francesco, and Monica Santamaria. Fabrication of Cu2O/TiO2 Nanotubes Heterojunction Arrays and Investigation of Their Photoelectrochemical Behaviour. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada570350.

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Yates, Jr, and John T. Carbon Single Walled Nanotubes- Electron Acceptor Molecules for Improving the Efficiency of the Photoexcitation of TiO2 for Solar-Driven Technologies. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada574813.

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