The selective deposition of silver nanoparticles onto {1 0 1} facets of TiO 2 nanocrystals with co-exposed {0 0 1}/{1 0 1} facets, and their enhanced photocatalytic reduction of aqueous nitrate under simulated solar illumination

Photo-reduction of bromate in drinking water by metallic Ag and reduced graphene oxide (RGO) jointly modified BiVO4 under visible light irradiation

“…Metallic Ag played an important role in two aspects, electron donor and electron mediator, under visible light irradiation. Ag nanoparticles could absorb the incident photons and produced electrons and holes attributable to the surface plasmon resonance (SPR) induced electronic field (Sun et al, 2016;Li et al, 2015). The photo-generated electrons from Ag particles could be transformed to the conduction band of BiVO 4 , resulting in electron-deficient Ag and a lower recombination rate of photo-generated electrons and holes.…”

“…In addition, a small amount of metallic Ag co-doped photocatalysts were proven to be effective in oriented migration of photo-generated electrons. For example, Sun et al successfully deposited Ag nanoparticles onto {101} facets of TiO 2 nanocrystals and possessed superior photocatalytic reduction activity to nitrate (Sun et al, 2016). Vanitha et al fabricated a novel Ag decorated CeO 2 /RGO as an efficient supercapacitor (Vanitha et al, 2015).…”

Surface heterojunction between (001) and (101) facets of ultrafine anatase TiO2 nanocrystals for highly efficient photoreduction CO2 to CH4

“…For the dissolvable titanium salt including TiF 4 [20,32,33], Ti(SO 4 ) 2 [34], TiCl 4 [35], TiOSO 4 [36], Ti(OBu) 4 [37,38] and Ti{OCH(CH 3 ) 2 } 4 [39], it is hard to control the crystal growth process, which led to the size of TiO 2 with (001) facets crystals more large. On the other hand, undissolvable precursors such as Ti [40], TiN [41], TiC [42], TiS 2 [43] and TiB 2 [44] powders were discovered to play an important role in remaining some of the unique properties of anatase TiO 2 by mild reaction process.…”

Design and constructing of mutually independent crystal facet exposed TiO2homojunction and improving synergistic effects for photoelectrochemical hydrogen generation and pollutant degradation

“…Zhou Yong and coworkers have successfully prepared the crystal facet‐based CeO 2 homojunction, which is consisted of hexahedron prism‐anchored octahedron with exposed prism surface of (100) facets and octahedron surface of (111) facets through solution‐based crystallographic‐oriented epitaxial growth . It is well known that different crystal plane of anatase TiO 2 (100), (101) and (001) is with different catalytic activity . Therefore, preparing of the TiO 2 ‐based homojunction with specific exposed crystal facets is meaningful.…”

“…23 It is well known that different crystal plane of anatase TiO 2 (100), (101) and (001) is with different catalytic activity. 24,25 Therefore, preparing of the TiO 2 -based homojunction with specific exposed crystal facets is meaningful.…”