Hydrothermal treatment of layered sodium titanate nanostructures and their conversion to Li4Ti5O12

2020 ◽  
Vol 31 ◽  
pp. 522-525
Author(s):  
Tatyana M. Zima ◽  
Anna V. Kozlova ◽  
Nikolai F. Uvarov
2008 ◽  
Vol 20 (12) ◽  
pp. 3800-3802 ◽  
Author(s):  
Dana L. Morgan ◽  
Huai-Yong Zhu ◽  
Ray L. Frost ◽  
Eric R. Waclawik

2016 ◽  
Vol 869 ◽  
pp. 795-799 ◽  
Author(s):  
Ludyane Nascimento Costa ◽  
Francisco Xavier Nobre ◽  
Bartolomeu Cruz Viana Neto ◽  
José Milton Elias de Matos

This work addresses the main point, the synthesis of one-dimensional titanate nanostructures and their ion exchange with transition metals for application in photocatalysis. The catalysts tested in the photocatalytic process were titanate nanoribbons (NRTi) synthesized by hydrothermal method and ion exchanged with Sn2+. The structural and morphological analysis of the material was performed by XRD, Raman spectroscopy and TEM images, confirming the formation of the desired structures and the growth of SnO2 nanoparticles after the ion exchange process with average size smaller than 10 nm. The values of surface area were obtained by BET and showed a significant increment after the ion exchange process, making it favorable for application in photocatalysis. The NRTi was applied in the degradation of blue dye remazol, generating a total degradation in 120 minutes. The rate constants were calculated from the pseudo-first-order equation.


2007 ◽  
Vol 124-126 ◽  
pp. 1277-1280
Author(s):  
Yun Jong Kim ◽  
Sang Bae Kim ◽  
Keon Joon Cho ◽  
Taik Nam Kim ◽  
S.B. Cho

In the present work, surface treatment of surgical implant Titanium alloy with micro bioactive nanotube was experimented. Surface treatment of Ti-6Al-4V bio-implant carried out by giving alkali hydrothermal and heat treatment. The specimens were treated in 1M NaOH at 100, 150, 200°C for different holding time of 2 hr, 4 hr, 6hr, 12 hr, 24hr & 48 hr. The hydrogel layer generated during the alkali treatment was crystallized to sodium titanate (Na2Ti6O13) and resulted into the formation of nano sized tubes on heat treatment. X-ray Diffractrometry (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) revealed the different phases and surface morphology of these nanorods. The biocompatibility test done using Simulate Body Fluid (SBF) showed that the Hydroxyapatite (HAp) was well formed at the sodium titanate nanotube layer generated on the Ti-6Al-4V specimen. The best condition for this increase in surface biocompatibility was optimized to 6 hours hydrothermal treatment under 200°C using 1 M NaOH followed by 1 hour heat treatment at 600°C.


2013 ◽  
Vol 113 ◽  
pp. 141-148 ◽  
Author(s):  
Radhiyah Abd Aziz ◽  
Izan Izwan Misnon ◽  
Kwok Feng Chong ◽  
Mashitah M. Yusoff ◽  
Rajan Jose

2021 ◽  
Vol 552 ◽  
pp. 149534
Author(s):  
Martín Esteves ◽  
Luciana Fernández-Werner ◽  
Cristiani Campos Plá Cid ◽  
Silvia Pelegrini ◽  
André A. Pasa ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Gang Li ◽  
Lide Zhang ◽  
Ming Fang

Fluffy sodium titanate nanostructures have been fabricated by a simple hydrothermal method with metatitanic acid as precursor. The obtained nanostructures exhibit as the aggregation of nanosheets, and the surface area of the nanostructure is about 110.59 m2/g. Such nanoarchitecture indicates high adsorption capacity to some metal ions, such as Cd2+, and the maximum adsorption capacity has been estimated to be 255.18 mg/g. The possible reasons that are responsible after its high adsorption ability, have been ascribed to the tiny structure, the ion-exchange ability and the large surface area of the sodium titanate nanostructures. And this may greatly enlarge its application potential as an adsorbent.


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