Molten salt synthesis of Na2Ti3O7 and Na2Ti6O13 one-dimensional nanostructures and their photocatalytic and humidity sensing properties

Synthesis, conversion, and comparison of the photocatalytic and electrochemical properties of Na2Ti6O13 and Li2Ti6O13 nanobelts

“…5b shows the curves of C/C 0 versus irradiation time, which reveals the concentration change of RhB solution as the photocatalytic reaction in the presence of Na 2 Ti 6 O 13 nanobelts and bulk exposed to UV light. The Na 2 Ti 6 O 13 nanobelts act efficiently as photocatalysts and the photodegradation efficiency reaches 93% after 60 min of illumination, which is higher than the value (76%, Na 2 Ti 6-O 13 nanoblets) reported by Zhen et al [6], and consistent with the most recent result (93%, Na 2 Ti 6 O 13 nanowires) presented by Xu et al [7]. The difference of photodegradation efficiency should be attributed to their different particle size.…”

“…We have successfully expanded this process to the synthesis of Li 2 Ti 6 O 13 nanobelts. The precursor Na 2 Ti 6 O 13 nanobelts were first prepared by the molten salt synthesis method, which is similar to previous reports [3,4,6,7]. In a typical procedure of synthesizing Na 2 Ti 6 O 13 nanobelts, 1 mmol Na 2-CO 3 and 6 mmol TiO 2 were mixed with 5.0 g NaCl, ground homogeneously in a mortar for 30 min.…”

“…In particular, 1D alkali-metal hexatitanates (A 2 Ti 6 O 13 , A is alkali-metal) with a tunnel structure have given rise to extraordinary attention as photocatalysts because they have a large specific surface area and structural anisotropy [1,2]. For example, Na 2 Ti 6 O 13 whiskers exhibited good photocatalytic activity by the photodecolorization of methyl orange under ultraviolet light (UV) irradiation [3,4]; Na 2 Ti 6 O 13 nanorods and nanobelts also presented good photocatalytic activity for the decomposition of 4-chlorophenol and Rhodamine B (RhB) under UV irradiation, respectively [5][6][7]. As compared with Na 2 Ti 6 O 13 polycrystallines, 1D Na 2-Ti 6 O 13 nanostructures have many advantages as photocatalysts.…”

N-doped Na2Ti6O13@TiO2 core–shell nanobelts with exposed {1 0 1} anatase facets and enhanced visible light photocatalytic performance

“…Due to their stoichiometrydependent structure and physicochemical properties, alkali metal titanates have been intensively explored in such applications as photocatalyst [9][10][11], lithium and sodium ion battery [12,13], gas and humidity sensing, and antibacterial agent [14,15]. As photocatalysts, these structures are suitable both for the accommodation of catalytic active phase (e.g., metal oxides) to raise the separation efficiency of photo-excited charge carriers and for the transfer of these carriers to adsorbed reactants at the surface [16].…”

Synthesis of Single Crystalline Titanium Oxide and Sodium Titanate Nanorods Via Salt-Assisted Ultrasonic Spray Pyrolysis

“…37-0951). This phase is known to be one of the ternary M-Ti-O (M = alkali metal) system materials which have low toxicity, low cost and wide applications including sodium ion batteries and photocatalysts [16][17][18][19]. Although the synthesized nanostructures were not pure TiO 2 but the Na 2 Ti 6 O 13 is also useful and the properties and applications of Na 2 Ti 6 O 13 are quite similar to anatase TiO 2 .…”