Fabrication of periodically aligned vertical single-crystalline anatase TiO2 nanotubes with perfect hexagonal open-ends using chemical capping materials

Nano Research ◽  
2013 ◽  
Vol 7 (1) ◽  
pp. 104-109 ◽  
Author(s):  
Hui Song ◽  
Kyubong Jo ◽  
Bock Young Jung ◽  
Gun Young Jung
2019 ◽  
Vol 158 ◽  
pp. 307-314 ◽  
Author(s):  
Iman Zeydabadi-Nejad ◽  
Naeem Zolfaghari ◽  
Mahmoud Mosavi-Mashhadi ◽  
Majid Baniassadi

Author(s):  
Celeste Yunueth Torres López ◽  
Jose de Jesus Perez Bueno ◽  
Ildefonso Zamudio Torres ◽  
Maria Luisa Mendoza López ◽  
Abel Hurtado Macias ◽  
...  

The scope of this work shows novel experimental findings on preparing anatase TiO2 nanoparticles, first anodizing titanium into an organic media for obtaining TiO2 nanotubes, and using these as a photocatalytic active electrode in treating water polluted with organic contaminants. The substrates were grit blasted to obtain mechanical fixation of the generated nanotubular TiO2 structure. This was successfully achieved without diminishment of the nanotubes order and with a self-leveling of the outer surface. A new phenomenon has been investigated consisting of the process of oxidation of the nanotubes in water after anodizing. Along this process, methyl orange added to the aqueous solution was discolored as part of the redox reaction involved. The final state of the modified layer was composed of conglomerates of almost completely crystalline TiO2 nanoparticles, around 4 nm in size, consisting of anatase. SEM and TEM images show the transition of the amorphous nanotubes (atomic disorder/nanometric order) to crystalline disordered particles (atomic order/nanometric disorder).


2020 ◽  
Vol 19 (3) ◽  
pp. 399-405
Author(s):  
Joel Molina-Reyes ◽  
Alejandra Romero-Morán ◽  
José L. Sánchez-Salas

Experimental conditions to fabricate rutile-TiO2 nanotubes coated with a conformal anatase-TiO2 thin layer using ALD were reported. A considerable increase in the photocatalytic activity associated with these surface modifications was also observed.


2019 ◽  
Vol 4 (2) ◽  
pp. 26-44
Author(s):  
Celeste Yunueth Torres López ◽  
Jose de Jesus Perez Bueno ◽  
Ildefonso Zamudio Torres ◽  
Maria Luisa Mendoza López ◽  
Abel Hurtado Macias ◽  
...  

The scope of this work shows novel experimental findings on preparing anatase TiO2 nanoparticles, first anodizing titanium into an organic media for obtaining TiO2 nanotubes, and using these as a photocatalytic active electrode in treating water polluted with organic contaminants. The substrates were grit blasted to obtain mechanical fixation of the generated nanotubular TiO2 structure. This was successfully achieved without diminishment of the nanotubes order and with a self-leveling of the outer surface. A new phenomenon has been investigated consisting of the process of oxidation of the nanotubes in water after anodizing. Along this process, methyl orange added to the aqueous solution was discolored as part of the redox reaction involved. The final state of the modified layer was composed of conglomerates of almost completely crystalline TiO2 nanoparticles, around 4 nm in size, consisting of anatase. SEM and TEM images show the transition of the amorphous nanotubes (atomic disorder/nanometric order) to crystalline disordered particles (atomic order/nanometric disorder).


2008 ◽  
Vol 62 (12-13) ◽  
pp. 1819-1822 ◽  
Author(s):  
Daoai Wang ◽  
Feng Zhou ◽  
Ying Liu ◽  
Weimin Liu

2014 ◽  
Vol 40 (7) ◽  
pp. 9241-9247 ◽  
Author(s):  
Deaw Aphairaj ◽  
Thanakorn Wirunmongkol ◽  
Sutham Niyomwas ◽  
Sorapong Pavasupree ◽  
Pichet Limsuwan

2011 ◽  
Vol 94 (2) ◽  
pp. 310-315 ◽  
Author(s):  
Shuanglong Feng ◽  
Junyou Yang ◽  
Hu Zhu ◽  
Ming Liu ◽  
Jiansheng Zhang ◽  
...  

2015 ◽  
Vol 119 (8) ◽  
pp. 3923-3930 ◽  
Author(s):  
Xuming Yang ◽  
Yingchang Yang ◽  
Hongshuai Hou ◽  
Yan Zhang ◽  
Laibing Fang ◽  
...  

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