Synthesis of the ZnTPyP/WO₃nanorod-on-nanorod heterojunction direct Z-scheme with spatial charge separation ability for enhanced photocatalytic hydrogen generation

Abstract

The direct Z-scheme photocatalytic system can effectively improve the separation efficiency of photogenerated carriers through the photosynthesis-based photocarrier transport model. In this study, the zinc porphyrin-assembled nanorods (ZnTPyP) and WO3...

Sn(IV)porphyrin-Anchored TiO2 Nanoparticles via Axial-Ligand Coordination for Enhancement of Visible Light-Activated Photocatalytic Degradation

“…The development of new photocatalysts that overcome all of the above-mentioned drawbacks remains a challenge. For this purpose, porphyrinoid compounds have been immobilized on solid supports, such as matrices [29], hydrogels [30], zeolites [31] and nano-or microparticles [32][33][34][35], where the resulting hybrid materials show outstanding photocatalytic activity compared to that of the starting porphyrinoid compounds. After entrapping porphyrinoid compounds on solid supports, the resultant hybrid materials exhibit increased solar absorption/harvesting capabilities, as well as enhanced electronic conductivity mediated by intimate chemical contacts.…”

Surface Modification of ZnO with Sn(IV)-Porphyrin for Enhanced Visible Light Photocatalytic Degradation of Amaranth Dye

“…Moreover, the substantial flexibility in the molecular design, inherent aromatic electronic features, and rigid structural skeleton make them more attractive photosensitizers than other organic functional compounds. Metalloporphyrins can also amplify the photocatalytic activities of various semiconductor materials, such as TiO 2 [ 22 ], ZnO [ 23 ], BiOBr [ 24 ], g -C 3 N 4 [ 25 ], and WO 3 [ 26 ]. After the incorporation of metalloporphyrin compounds into semiconductor materials, the resulting hybrid materials not only avoid the recombination possibility of photo-generated charge carriers but also enhance the photocatalytic efficiency via heterojunction interfaces.…”