Fabrication of Ag particles deposited BiVO4 photoanode for significantly efficient visible-light driven photoelectrocatalytic degradation of β-naphthol

Enhancing the Photocatalytic Performance of BiVO4 for Micropollutant Degradation by Fe and Ag Photomodification

“…The anodic peaks at ~0.07 V vs. SCE correspond to the oxidation of AgNPs on the surface of BiVO 4 . EIS has revealed similar charge carrier mobilities for 1% and 8% Ag, which are improved over BVO alone, whereas 15% Ag@BVO has markedly improved charge carrier mobility, as can be seen in Figure 5D, due to greatly enhanced photogenerated electron scavenging [53]. The measured charge transfer resistance for BiVO 4 on FTO electrode substrate in the dark is akin to the value reported in the literature by Chatchai et al [54].…”

Construction of a type-II BiVO4/BiOI heterojunction for efficient photoelectrocatalytic degradation of β-naphthol and coal gasification wastewater under visible-light irradiation

“…Mott-Schottky (M-S) plots are regarded as a useful method to estimate the flat-band potential (E fb ) and carrier density (N d ) of semiconductors, and the M-S curves were obtained according to our previous work. 40 As exhibited in Fig. 5(e), the M-S curve of BiOI showed a negative slope, indicating that the prepared BiOI belonged to a p-type semiconductor.…”

“…† In addition, the construction procedure of the BVOI electrode is illustrated in Scheme 1 according to our previous work. 40…”

“…Additionally, the photoluminescence (PL) spectra were generally used to evaluate the transfer and separation of the photogenerated electron-hole pairs in the as-synthesized electrode materials, and stronger PL intensity indicates a higher recombination rate of photoinduced charge carriers. 27,40 As shown in Fig. S3 (ESI †), all the electrodes display the emission bands located at 500-550 nm with a 325 nm excitation wavelength.…”

Enhanced visible light photocatalytic performance of Er, Mn co-doped monoclinic BiVO4 for efficient organic pollutant degradation

“…6,13 Various methodologies have been proposed to address the shortcomings of BiVO 4 , such as exposed crystal surfaces, 14 functional materials, 15 semiconductor recombination, 5,16 and precious metal doping. 17,18 Of these techniques, chemical doping of metal ions has been proved to be an effective strategy for modifying the structures and photocatalytic properties of semiconductor nanomaterials. 19 Noble metals, such as Au and Ag, have high adsorption ability for visible light due to their localized surface plasmon resonance effect and can facilitate the separation of photogenerated electronhole pairs and reduce their recombination rate effectively by converting photons into heat via the photothermal effect.…”