Summary Pure Na0.23TiO2 nanofibers were fabricated by a two‐step hydrothermal method after a series of experiments. Na0.23TiO2 is a direct bandgap semiconductor and exhibits a strong photodegradative ability for RhB, which is difficult to be degraded. The photodegradative activity is much enhanced after loaded noble metal Au or Ag nanoparticles on Na0.23TiO2 nanofibers by a chemical bath deposition method. Hot electrons are generated in metal nanoparticles through a localized surface plasmon (LSP) process under light illumination and then diffuse to a semiconductor and reduce the surface potential, which is detected directly by a scanning Kelvin probe microscopy (SKPM). The high electromagnetic field induced by the LSP resonance and strong coupling between noble metal and Na0.23TiO2 are beneficial for the utilization of visible light, electron produce, charge transportation, and separation, as a result, promoting the activity of semiconductor‐based photocatalysts. This work supplies an effective method to directly probe the surface plasmon and highlights the application of Na0.23TiO2 in photocatalysis.

The structural response of BCC Fe lattice loaded in [110] direction has been investigated with MAEAM. The results show that, even if an orthorhombic path (b 2 ≠b 3 ) is applied, the deformation is spontaneous along the tetragonal path (b 2 ≡b 3 ) while b 1 is less than 0.3449 nm in compressive region. In addition to the initial BCC phase, a BCT phase and the other BCC phase appear also at stress-free states. The BCT phase with the local maximum internal energy of -4.227 eV is unstable and would slip spontaneously into the appeared BCC phase with the same minimum internal energy of -4.280 eV as the initial BCC phase. The stable region ranges from -43.87 eV/nm 3 to 44.06 eV/nm 3 in the theoretical strength or from -7.34% to 6.49% in the strain correspondingly. Furthermore, the relations B 11 =B 22 , B 13 =B 23 and B 44 =B 55 occur at the initial state.