Surface decoration of BiPO4 with BiOBr nanoflakes to build heterostructure photocatalysts with enhanced photocatalytic activity

Visible-light photocatalytic performance, recovery and degradation mechanism of ternary magnetic Fe3O4/BiOBr/BiOI composite

“…3b, two peaks with binding energies at 68.8 and 69.2 eV are Br 3d 5/2 and Br 3d 3/2 peaks, respectively. 27 From the spectra shown in Fig. 3c, the peaks for Bi 4f are observed, and contain Bi 4f 7/2 (Bi(III)) and Bi 4f 5/2 (Bi(V)) peaks.…”

“…The E g of BiOBr and BiOI are calculated to be 2.92 and 1.85 eV, which is consistent with the literature report. 27,37 The valence band (VB) edge position and the conduction band (CB) edge position of BiOBr and BiOI can be calculated by Mulliken electronegativity theory via formulas (3) and 4:…”

Surface Decoration of ZnWO4 Nanorods with Cu2O Nanoparticles to Build Heterostructure with Enhanced Photocatalysis

“…The photoluminescence (PL) spectra can evaluate the transfer and recombination processes of photogenerated e − /h + pairs in semiconductors. It is widely accepted that the lower PL intensity, the lower photo-carrier recombination rate and the higher photocatalytic performance [ 31 ]. The excitation wavelength ZnWO 4 and Cu 2 O in the Cu 2 O/ZnWO 4 architectures was 315 nm.…”

Ultrasonic-assisted synthesis of plasmonic Z-scheme Ag/AgCl/WO3-nanoflakes photocatalyst in geothermal water with enhanced visible-light photocatalytic performance

“…For one thing, the Ag/AgCl can easily lead to the agglomeration with the excessive addition. Thus the dwindling interfaces and heterostructures between WO 3 and Ag/AgCl result in a weaker charge separation efficiency and photocatalytic activity [50,51] . Additionally, the deficient WO 3 substrate for immobilizing Ag/AgCl would contribute to the generation of massive dissociative Ag/AgCl, which is unfavorable to the transferring of photo-excited interfacial charge as mechanical mixture.…”