Narrow titanium oxide nanowires induced by femtosecond laser pulses on a titanium surface

2017 ◽  
Vol 396 ◽  
pp. 221-225 ◽  
Author(s):  
Hui Li ◽  
Xian-Feng Li ◽  
Cheng-Yun Zhang ◽  
Shao-Long Tie ◽  
Sheng Lan
Keyword(s):  
Femtosecond Laser ◽  
Titanium Oxide ◽  
Titanium Surface ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Oxide Nanowires

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

2013 ◽  
Vol 10 (5) ◽  
pp. 056004 ◽  
Author(s):  
Andrey A Ionin ◽  
Sergey I Kudryashov ◽  
Sergey V Makarov ◽  
Leonid V Seleznev ◽  
Dmitry V Sinitsyn ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Titanium Surface ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals The Formation of Oxide Layers on a Titanium Surface by Irradiation with Femtosecond Laser Pulses

2018 ◽  
Vol 44 (12) ◽  
pp. 1177-1179
Author(s):  
Yu. R. Kolobov ◽  
M. V. Zhidkov ◽  
E. V. Golosov ◽  
T. N. Vershinina ◽  
S. I. Kudryashov ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Titanium Surface ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Oxide Layers

scholarly journals Synthesis of Micro-Spikes and Herringbones Structures by Femtosecond Laser Pulses on a Titanium Plate—A New Material for Water Organic Pollutants Degradation

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5556
Author(s):  
Joanna Kisała ◽  
Iaroslav Gnilitskyi ◽  
Bogumił Cieniek ◽  
Piotr Krzemiński ◽  
Michał Marchewka ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Oxide Layer ◽  
Titanium Oxide ◽  
Organic Pollutants ◽  
Molecular Sieves ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Kinetic Properties ◽  
Fast Method ◽  
Titanium Plate

(1) Background: The shrinkage of water resources, as well as the deterioration of its quality as a result of industrial human activities, requires a comprehensive approach relative to its protection. Advanced oxidation processes show high potential for the degradation of organic pollutants in water and wastewater. TiO2 is the most popular photocatalyst because of its oxidizing ability, chemical stability and low cost. The major drawback of using it in powdered form is the difficulty of separation from the reaction mixture. The solution to this problem may be immobilization on a support (glass beads, molecular sieves, etc.). In order to avoid these difficulties, the authors propose to prepare a catalyst as a titanium plate covered with an oxide layer obtained with laser treatment. (2) Methods: In the present work, we generated titanium oxide structures using a cheap and fast method based on femtosecond laser pulses. The structurized plates were tested in the reaction of methylene blue (MB) degradation under UVA irradiation (365 nm). The photocatalytic activity and kinetic properties for the degradation of MB are provided. (3) Results: Studies of X-ray diffraction (XRD) and scanning electron microscopy (SEM) confirm a titanium oxide layer with laser-induced generated structures that are called “spikes” and “herringbones”. The structurized plates were effective photocatalysts, and their activity depends on the structure of the oxide layer (spike and herringbone). (4) Conclusion: The immobilization of the catalyst on a solid support can be performed in a fast and reproducible manner by using the technique of laser ablation. The layers obtained with this method have been shown to have catalytic properties.

scholarly journals Adjustment of Subwavelength Rippled Structures on Titanium by Two-Step Fabrication Using Femtosecond Laser Pulses

2021 ◽  
Vol 11 (5) ◽  
pp. 2250
Author(s):  
Yanping Yuan ◽  
Xinyang Guo ◽  
Yitong Shang ◽  
Jimin Chen
Keyword(s):  
Femtosecond Laser ◽  
Surface Morphology ◽  
Titanium Surface ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Polarization Direction ◽  
Large Area ◽  
Step Method ◽  
Processing Steps ◽  
Process Material

An effective approach is proposed to adjust the surface morphology induced by using a femtosecond laser, including the area and period of rippled structures. The effect of the processing steps and laser polarization on the surface morphology of rippled structures on a titanium surface was experimentally investigated in this study. A processing sequence was designed for two series of femtosecond laser pulses that irradiate a titanium surface, for example, N = 50(0°) + 50(90°). The experimental results show that the area and period of rippled structures can be simultaneously adjusted by following a two-step method. Due to the enhancement of energy absorption and SP-laser coupling of the initial rippled structures, large area surface structures with small periods are fabricated using two series of femtosecond laser pulses with the same polarization direction. By changing the polarization direction of the two series of femtosecond laser pulses, the recording, erasing, and rewriting of subwavelength ripples is achieved. During the rewriting process, material removal and the formation of new ripples simultaneously occur.

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