A facile strategy to fabricate large-scale uniform brookite TiO2 nanospindles with high thermal stability and superior electrical properties

Abstract

A facile strategy was initiated to fabricate large-scale uniform brookite TiO2 nanospindles preferentially grown along the [001] direction, which were highly thermally stable and exhibited superior electrical conductivity, about two orders of magnitude higher than those of anatase and rutile counterparts.

Same titanium glycolate precursor but different products: successful synthesis of twinned anatase TiO2 nanocrystals with excellent solar photocatalytic hydrogen evolution capability

“…35 Zhao et al also found that the initially formed precursor of [Ti(OH) 4 (OH 2 ) 2 ] from the starting material TiOSO 4 in water could be easily transformed into the anatase phase, but the production of the brookite phase rather than other crystalline titania phases was favoured in the presence of highly con- centrated OH − . 36 Based on the above previous reports, we proposed that the titanium glycolate precursor could initially steadily convert into the building unit monomers of TiO 2 in the hydrothermal reaction system. Once the concentration of monomers reaches super-saturation, fast nucleation would occur, and a lot of crystal seeds would start to come out during the reaction period.…”

H2 production by photocatalytic reforming of oxygenated compounds using TiO2-based materials

“…Most of the surface is made by {010}, {111}, {210} and reconstructed {001} [72][73][74] or hydrothermal methods [73,75,76]. Brookite nanosheets [77] or pseudocubic nanocrystals [78] can be prepared adapting the synthetic conditions.…”

Facile hydrothermal synthesis of TiO2 nanospindles-reduced graphene oxide composite with a enhanced photocatalytic activity

“…Usually, the active {0 0 1} facets are easier to be exposed on two-dimensional nanosheets than on other morphologies [8,9]. Zhao et al [10] had fabricated anatase TiO 2 nanospindles which are featured by large exposed {0 0 1} facets and found they provided a good solution to the problems of poor electron transport and severe aggregation of TiO 2 nanoparticles.…”