Unique Properties of 2 D Layered Titanate Nanosheets as a Building Block for the Optimization of the Photocatalytic Activity and Photostability of TiO₂‐Based Nanohybrids

Abstract

In comparison with the hybridization with 0D TiO2 nanoparticle, 2D layered TiO2 nanosheets are much more effective in the improvement of the photocatalytic activity and photostability of semiconducting compounds. The 2D TiO2-Ag3PO4 nanohybrid described in this paper shows a greater decrease in the electron-hole recombination upon hybridization and a stronger chemical interaction between the components than the 0D homologue. This result confirms the benefits of 2D layered TiO2 nanosheets as a building block for efficient hybrid-type photocatalyst materials.

Importance of the tuning of band position in optimizing the electronic coupling and photocatalytic activity of nanocomposite

“…3C and D, both the ACT and ACNT nanocomposites show slightly higher binding energies than those of TiO 2 /N-doped TiO 2 , strongly suggesting the presence of significant chemical interaction between silver carbonate and titanium oxide. Similar electron transfer between silver oxosalt and titanium oxide is reported for Ag 3 PO 4 -TiO 2 nanocomposite [20]. For the ACNT nanocomposite, the binding energies of Ti 2p XPS peaks are slightly higher than those of ACT.…”

A 2D Metal Oxide Nanosheet as an Efficient Additive for Improving Na‐Ion Electrode Activity of Graphene‐Based Nanocomposites

“…Several main-edge peaks A, B, and Cr elatedt od ipole-allowed 1s!4p transitions appear for all the materials under investigation. [26,27] The main-edge spectralf eatureso ft he NSGT nanocomposites are closer to those of trititanate-type layered titanatet han to those of lepidocrocite-type layered titanate, reflecting as light structuralm odification from lepidocrocite-to trititanate-type layered titanateu pon composite formationw ith rG-O and SnS 2 nanosheets. Although no distinct XRD peaks of SnS 2 and titanate are discernible (Figure 1), the presentX ANES results provide strong evidencef or the incorporation of both the SnS 2 and titanaten anosheets in the present NSGT nanocomposites.…”

TiO2 hybrid photocatalytic systems: impact of adsorption and photocatalytic performance

“…The high photocatalytic TiO 2 paper has been fabricated by coupling sol-gel-derived TiO 2 colloids with Brought to you by | Kungliga Tekniska Högskolan Authenticated Download Date | 8/17/15 9:30 PM natural zeolite. The zeolite-TiO 2 particles were dispersed on a dense network of fibers with microvoids, which decomposed gaseous toluene very effectively after UV irradiation (Jo et al 2014). …”

“…TiO 2 paper hybrid system with different void structures was prepared using beaten pulp fibers with different degrees of freeness and fiber lengths. The paper voids presumably provided suitable conditions for TiO 2 photocatalysis, resulting in greater photocatalytic performance of TiO 2 paper powder and pulp mixture, which are not in paper form (Jo et al 2014).…”