AI Article Synopsis
- - Researchers developed an all-organic S-scheme heterojunction by recrystallizing perylene-3, 4, 9, 10-tetracarboxylic diimide (PDINH) on porous carbon nitride (PCN) to enhance solar energy conversion for producing hydrogen peroxide.
- - The porous design of the photocatalyst improved mass transfer, light absorption, and surface area, facilitating more effective photocatalytic reactions.
- - The new heterojunction achieved a hydrogen peroxide production rate of 922.4 μmol gh, significantly outperforming both PCN and PDINH alone, highlighting its potential for environmental applications. !*
Article Abstract
Light-driven reaction of oxygen and water to hydrogen peroxide (HO) is an environmental protection method, which can convert solar energy into green products. In this work, perylene-3, 4, 9, 10-tetracarboxylic diimide (PDINH) could be recrystallized in situ on the surface of porous carbon nitride (PCN), to obtain an all-organic S-scheme heterojunction (PDINH/PCN). The design of the hierarchical porous photocatalyst improved the mass transfer, enhanced the light absorption and increased specific surface area. Moreover, the construction of the S-scheme heterojunction at the interface of PDINH and PCN exhibited suitable band, which facilitated the separation and transfer of carriers. The HO production rate was up to 922.4 μmol gh, which was 2.6 and 53.3 times higher than that of PCN and PDINH. Therefore, the all-organic S-scheme heterojunction provides an insight for improving the photocatalytic HO production.
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| http://dx.doi.org/10.1016/j.jcis.2022.11.146 | DOI Listing |
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