Layer-assembled 3D Bi2WO6 hierarchical architectures by Ti-doping for enhanced visible-light driven photocatalytic and photoelectrochemical performance

Recent progress in Bi2WO6‐Based photocatalysts for clean energy and environmental remediation: Competitiveness, challenges, and future perspectives

“…assembled hierarchically layered Bi 2 WO 6 with varying concentrations of doped Ti through a single‐step hydrothermal technique. [ 43 ] Ti doping could not only help to form hierarchical structures, but also create defects in Bi 2 WO 6 , thus forming redox couples and generating oxygen vacancies. Moreover, these defects could significantly affect properties of Bi 2 WO 6 due to the decrease in thickness of the nanosheets (Figure 7a‐d).…”

“…TEM/HRTEM images of (A,B) Bi 2 WO 6 and (C,D) Ti‐doped Bi 2 WO 6 and the corresponding SAED patterns (the inset) of Bi 2 WO 6 and Ti‐doped Bi 2 WO 6 . [ 43 ] Copyright 2019, Elsevier B.V…”

“…[ 41,42 ] Moreover, since the CB edge position of unmodified Bi 2 WO 6 is slightly more negative than the standard H + /H 2 redox potential, the amount of hydrogen generated by the decomposition of water under light is negligible. [ 43 ]…”

“…Additionally, we deeply illustrate and analyze the connections between the morphological, photophysics and photochemical properties of Bi 2 WO 6 , which include dopant or defect structures, metal deposition techniques, semiconductor combinations and surface modification by carbon‐based materials with conjugated π‐structures. [ 39–181 ] We critically review the practical applications of water splitting, pollutant removal, and especially CO 2 reduction. These aspects reflect the research status of Bi 2 WO 6 , as well as its potential and opportunities in the field of clean energy and environmental protection.…”

Degradation of norfloxacin by copper-doped Bi2WO6-induced sulfate radical-based visible light-Fenton reaction

“…Hence, the introduction of transition metal elements is considered to be an efficient method to improve the photocatalytic activity of Bi 2 WO 6 . For example, Bi 2 WO 6 has been decorated with other metal ions, such as Ag, 21 Zn, 22 Mg, 23 Sm, 24 and Ti, 25 to manipulate the excitation and separation of photogenerated carriers; this can improve its photocatalytic activity for redox applications. Doping of copper into Bi 2 WO 6 has also been proved to exhibit excellent photocatalytic activity under visible light.…”