Novel Magnetically Separable BiVO 4 /Fe 3 O 4 Photocatalyst: Synthesis and Photocatalytic Performance under Visible-light Irradiation

Defective Bi2WO6‐Supported Cu Nanoparticles as Efficient and Stable Photoelectrocatalytic for Water Splitting in Near‐Neutral Media

“…[59,60] This confirming the carriers density of Vo-Bi 2 WO 6 and Cu/ Bi 2 WO 6 -x (x = 1, 2) photoanodes were increased by surface modification, and with a superior PEC activity due to the effective separation and transfer of charge carriers at the interface of photoanodes. [59,61] This result was consistent with the above quantitative calculation. Consequently, the increased carried density was the major reason for the improved interfacial charge transfer efficiency.…”

“…The lower slope of Vo‐Bi 2 WO 6 and Cu/Bi 2 WO 6 ‐x (x=1, 2) photoanodes in Motty‐Schottky curves as compared to the pure Bi 2 WO 6 photoanode suggested the greatly enhanced donor densities ,. This confirming the carriers density of Vo‐Bi 2 WO 6 and Cu/Bi 2 WO 6 ‐x (x=1, 2) photoanodes were increased by surface modification, and with a superior PEC activity due to the effective separation and transfer of charge carriers at the interface of photoanodes ,. This result was consistent with the above quantitative calculation.…”

Bismuth vanadate-based semiconductor photocatalysts: a short critical review on the efficiency and the mechanism of photodegradation of organic pollutants

“…Indeed such methods are easy to implement as, for example, the charge scavenging technique. Chemical substances that scavenge particular oxidative species are deliberately introduced in the photocatalytic system and the overall influence on the degradation rate is followed (Chen et al 2008;Hu et al 2017;Huang et al 2017;Katsumata et al 2013;Li et al 2015;Lin et al 2012;Liu et al 2017;Liu et al 2018;Xue et al 2017;Zhai et al 2017;Zhang et al 2018). By this mean, hydroxyl radicals can be identified using iso-propanol or tert-butanol; superoxide radicals can be highlighted by using p-benzoquinone while photogenerated hole can be directly scavenged by ammonium oxalate or EDTA (ethylene-diamine-tetra-acetate).…”

Semiconductor Eco-Materials for Water Treatment

“…This approach allows the easy mechanical removal of the 0.5-2 mm size of the beads without losing substantial activity by being embedded in alginate. Magnetically separable photocatalyst based on BiVO 4 /Fe 3 O 4 were used by Zhai et al [87], allowing the reusability of the photocatalyst. The combination of TiO 2 photocatalyst and magnetic oxide nanoparticles enhanced the separation, and recoverable property of nanosized TiO 2 photocatalyst was explored by Zielińska-Jurek et al [88].…”