Synergistic effects of heterointerface and surface Br vacancies in ultrathin 2D/2D H2WO4/Cs2AgBiBr6 for efficient CO2 photoreduction to CH4

Recent Progress and Perspectives of S-Scheme Heterojunction Photocatalysts for Photocatalytic CO2 Reduction

“…In addition to the ability of S-scheme heterojunctions to improve redox capacity as described above, S-scheme heterojunctions are also capable of improving product selectivity. 93 For example, Kumar et al designed S-scheme Fe@TiO 2 /Boron carbon nitride (FT/BCN) heterostructures and investigated and analyzed the selective photoreduction of CO 2 to prepare CH 4 . 94 The results showed that the construction of S-scheme heterojunction had a large effect on the selectivity of CH 4 .…”

“…(f) Electron density redistribution at the interface between HWO and CABB in HWO/CABB. Reproduced with permission from ref . Copyright 2023 Elsevier.…”

Enhancing CO2 photoreduction through unique 2D MOF-based heterostructures with metalloid doping

“…20,21 Among composite materials, the construction of 2D/2D heterojunction composites by combining different 2D materials has received considerable attention. 22–24 Previous studies have shown that the larger contact interfaces in 2D/2D composites can effectively separate electron–hole pairs due to the intimate face-to-face contact, unlike the point-to-face contact in 0D/2D heterojunctions and the line-to-face contact in 1D/2D heterojunctions. This feature can lead to excellent photocatalytic activity.…”

Insight of the State for Deliberately Introduced A-Site Defect in Nanofibrous LaFeO3 for Boosting Artificial Photosynthesis of CH3OH

“…Zhou et al fabricated excellent-performance H 2 WO 4 /Cs 2 AgBiBr 6 with abundant surface Br vacancies. Combining characterization and theoretical calculations, it was proved that the Br vacancies might facilitate the adsorption/activation of CO 2 and lower the CHO* formation energy barrier . Although several explorations have been made to modify perovskite oxides utilizing defect engineering, the impact of perovskite A-site defects on photocatalytic performance remains insufficiently understood, motivating a detailed investigation.…”

“…16,17 Furthermore, vacancies function as active sites to facilitate the adsorption of reaction substrates and even take part directly in specific photocatalytic processes. 21 Although several explorations have been made to modify perovskite oxides utilizing defect engineering, the impact of perovskite A-site defects on photocatalytic performance remains insufficiently understood, motivating a detailed investigation.…”