Nanoarchitecture of TiO2 microspheres with expanded lattice interlayers and its heterojunction to the laser modified black TiO2 using pulsed laser ablation in liquid with improved photocatalytic performance under visible light irradiation

2019 ◽  
Vol 541 ◽  
pp. 234-248 ◽  
Author(s):  
Ali Balati ◽  
Sumeyra Tek ◽  
Kelly Nash ◽  
Heather Shipley
Keyword(s):  
Laser Ablation ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Light Irradiation ◽  
Laser Ablation In Liquid ◽  
Black Tio2 ◽  
Tio2 Microspheres

scholarly journals Highly Defective Dark Nano Titanium Dioxide: Preparation via Pulsed Laser Ablation and Application

Materials ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2054 ◽  
Author(s):  
Elena D. Fakhrutdinova ◽  
Anastasiia V. Shabalina ◽  
Marina A. Gerasimova ◽  
Anna L. Nemoykina ◽  
Olga V. Vodyankina ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Visible Light ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Antibacterial Activities ◽  
Scanning Calorimetry ◽  
Laser Ablation In Liquid ◽  
X Ray ◽  
Nano Titanium Dioxide ◽  
Adsorption Desorption

The development of methods to synthesize and study the properties of dark titania is of the utmost interest due to prospects for its use, primarily in photocatalysis when excited by visible light. In this work, the dark titania powder was prepared by pulsed laser ablation (Nd:YAG laser, 1064 nm, 7 ns) in water and dried in air. To study the changes occurring in the material, the thermal treatment was applied. The structure, composition, and properties of the obtained powders were studied using transmission electron microscopy, low-temperature N2 adsorption/desorption, X-ray diffraction, thermogravimetry/differential scanning calorimetry, X-ray photoelectron, Raman and UV-vis spectroscopies, and photoluminescence methods. The processes occurring in the initial material upon heating were studied. The electronic structure of the semiconductor materials was investigated, and the nature of the defects providing the visible light absorption was revealed. The photocatalytic and antibacterial activities of the materials obtained were also studied. Dark titania obtained via laser ablation in liquid was found to exhibit catalytic activity in the phenol photodegradation process under visible light (>420 nm) and showed antibacterial activity against Staphylococcus aureus and bacteriostatic effect towards Escherichia coli.

scholarly journals Template-free, single step preparation of hollow Coo nano spheres using pulsed laser ablation in liquid environment

2021 ◽  
pp. 103317
Author(s):  
Muidh Alheshibri ◽  
Sultan Akhtar ◽  
Abbad Al Baroot ◽  
Khaled Elsayed ◽  
Hassan S Al Qahtani ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Single Step ◽  
Laser Ablation In Liquid ◽  
Liquid Environment ◽  
Template Free

CdS/Ag2S/g-C3N4 ternary composites with superior photocatalytic performance for hydrogen evolution under visible light irradiation

2021 ◽  
Vol 50 (9) ◽  
pp. 3253-3260 ◽  
Author(s):  
Shan Zhao ◽  
Junbiao Wu ◽  
Yan Xu ◽  
Xia Zhang ◽  
Yide Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Synergic Effect

CdS/Ag2S/g-C3N4 ternary composites showed excellent photocatalytic performance toward H2 evolution. Their improved photocatalytic activity could be attributed not only to the synergic effect, but also to the introduction of Ag2S.

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