Synthesis of TiO2 nanotubes by using combination of sonication and hydrothermal treatment and their photocatalytic activity for hydrogen evolution

Abstract

Effect of sonication and hydrothermal treatments on the synthesized of Titania nanotubes (TiO

Optimization of TiO2 nanowires synthesis using hydrothermal method for hydrogen production

“…The rutile phase was formed at calcination temperature above 700°C. Similar results have been reported by many researchers, that only anatase phase was formed after calcination of hydrogen titanate nanotubes at 500°C [16,24,40,43]. Table 1.…”

“…All products of TiO2 nanowires, both Figure 5 and Figure 6 had completely crystalline structure of anatase TiO2 but the TiO2 Degussa P25 nanoparticles consisted of mixed anatase and rutile. This was because of at hydrothermal process, TiO2 P25, which had anatase and rutile phase, transformed into sodium trititanate as amorphous, only anatase phase was formed after calcination at 500°C [24]. The rutile phase was formed at calcination temperature above 700°C.…”

“…In the last years, novel nanostructures such as nanowires [15], nanotubes [4,[16][17][18], and nanorods [19][20][21] derived from TiO2 have been employed in water splitting [22]. These structures have high specific surface area, ion-exchange and photocatalytic abilities [23,24]. In the last year, new routes to synthesize TiO2 with 1D structure have been continuously proposed, such as thermal treatment [25], the assisted-template method [26,27], the sol-gel process [28], electrochemical anodic oxidation [4,[29][30][31][32] and hydrothermal treatment [14][15][16]24,33,34].…”

“…These structures have high specific surface area, ion-exchange and photocatalytic abilities [23,24]. In the last year, new routes to synthesize TiO2 with 1D structure have been continuously proposed, such as thermal treatment [25], the assisted-template method [26,27], the sol-gel process [28], electrochemical anodic oxidation [4,[29][30][31][32] and hydrothermal treatment [14][15][16]24,33,34]. Among these approaches, the hydrothermal treatment is regarded as one of the most efficient methods to synthesize 1d TiO2 because it can dramatically decrease the required processing temperature from 850°C to 180°C under a more alkali environment [6].…”

Nanocrystaline Titanium Dioxide Nanotube (TDN) by Hydrothermal Method From Tulungagung Mineral Sand

“…Therefore the characteristics of TiO2 which are most interesting to examine are the photochemical properties such as high photocatalyst activity (Afshar & Hakamizadeh, 2009). For this reason, TiO2 has been studied from 1950 to use as a photocatalyst, solar panel electrodes, gas sensors and so on (Kustiningsih, Slamet, & Purwanto, 2015).…”