Fabrication of antennae-like nanoheterostructure attached by porphyrin for increased photocatalytic hydrogen generation and electron transfer mechanism

Clarifying the Active Site Role of meso‐Carboxyphenyl Group for Free Base Porphyrins in Photocatalytic H2 Evolution Reaction

“…In the case of H 2 TDCPP photocatalysis, lowering porphyrin dosage from original c=0.2 mg ⋅ mL −1 to c/81=2.5 ⋅ 10 −3 mg ⋅ mL −1 brings about great enhancement of H 2 production rate from 7.21 mmol ⋅ h −1 ⋅ g −1 to 31.21 mmol ⋅ h −1 ⋅ g −1 (Figure 7C). This performance is better than that of some well‐performed free base porphyrin molecules [7c] and the complexes of free base porphyrin with Pt particle, [20a] metal oxide complex, [20b] and metal sulfide [20c] . Similar variation was also observed for H 2 TCPP (Figure 7D).…”

Porphyrins and phthalocyanines as biomimetic tools for photocatalytic H2production and CO2reduction

“…In addition, the same porphyrin TCPP was introduced onto an antennae-like Cu 2 O/NiO heterostructure in order to enhance the photocatalytic hydrogen production. 154 Therefore, upon light irradiation in aqueous TEOA solution the rate of H 2 evolution followed the order Cu 2 O/NiO/ TCPP 4 Cu 2 O/NiO 4 pure Cu 2 O (Table 7, entry 7). This result indicates that NiO and Cu 2 O can improve the photocatalytic hydrogen activity in the presence of the porphyrin photosensitizer, due to the strong interaction between the three components and due to electric field, that ids produced at the interface of Cu 2 O kai NiO.…”