La and F co-doped Bi₂MoO₆ architectures with enhanced photocatalytic performance via synergistic effect

Abstract

Solvothermally-synthesized La and F co-doped Bi2MoO6 architectures showed significantly enhanced photocatalytic activities and the photocatalytic mechanism was proposed.

Enhanced visible‐light‐driven photocatalytic activity of F doped reduced graphene oxide ‐ Bi2WO6 photocatalyst

“…Compared to that of rGO‐BWO, there is a distinct peak in the amplification of the F‐doped rGO‐BWO survey in Figure d. As shown in inset of Figure d, the F 1 s peak of F‐doped rGO‐BWO is observed at 684 eV in good accordance with the literature . All the results indicated that F − ions were successfully doped into rGO‐BWO to form F‐doped rGO‐BWO.…”

“…On account of environmental pollution and energy shortages in the past few decades, the researchers paid more and more attentions to environmentally friendly materials of semiconductor photocatalysis because of their unique ability for environmental purification and energy conversion . The visible‐light‐driven photocatalytic semiconductors have been researched extensively due to the more efficiency of the solar utilization than the traditional photocatalyst with wide band gap …”

The Aurivillius Compound CoBi2O2F4 – an Efficient Catalyst for Electrolytic Water Oxidation after Liquid Exfoliation

“…For the CoBi 2 O 2 F 4 ‐exf sample, all the Co 2p peaks are shifted to higher binding energies, indicating that these Co atoms are more inclined to give away electrons or Co−F bonds further enhanced after exfoliation. In the Bi 4 f spectra of CoBi 2 O 2 F 4 ‐cry (Figure b), the peaks at the binding energies of 159 and 164.3 eV are related to the Bi 3+ 4f 7/2 and 4f 5/2 peaks of Bi−O/Bi−F bonds in CoBi 2 O 2 F 4 ‐cry . After exfoliation, the Bi 3+ related peaks in the CoBi 2 O 2 F 4 ‐exf spectrum are all shifted to lower binding energies, indicating that it is more difficult for Bi atoms to give away electrons, so that either the Bi−O or the Bi−F bonds become weakened after exfoliation.…”

Modulation of Bi2MoO6‐Based Materials for Photocatalytic Water Splitting and Environmental Application: a Critical Review

“…Doping determined substance into Bi 2 MoO 6 is an efficient method to modify its optoelectronic properties by introducing foreign atoms or defects . Depending upon the nature of valence (donor, acceptor, and inert lattice mismatching) of dopants, the following changes of properties are most likely to occur: i) extension of light absorption toward longer wavelengths; ii) acceleration in electron–hole pairs separation; iii) boost in electrical conductivity; iv) improvement in surface affinity for chemical species …”