Surfactant-free 2D/2D Pd/g-C3N4 for enhanced photocatalytic CO2 reduction

Two-dimensional (2D) photocatalysts loaded with metal nanosheets, possessing enhanced charge transfer efficiency between the large 2D/2D interfaces, exhibit unprecedented advantages in photocatalysis. However, the inhibitory influence of surfactants on catalysis limits their applications. Herein, su...

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Published in:Catalysis science & technology 2024-02, Vol.14 (3), p.615-623
Main Authors: Huang, Zhijun, Wu, Jie, Yang, Chunliang, Fengwen Yan, Yuan, Guoqing
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon monoxide
Carbon nitride
Catalytic activity
Charge efficiency
Charge transfer
Chemical reduction
Graphene
Nanosheets
Palladium
Photocatalysis
Surfactants
Titanium dioxide
Two dimensional materials
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creator Huang, Zhijun
Wu, Jie
Yang, Chunliang
Fengwen Yan
Yuan, Guoqing
description Two-dimensional (2D) photocatalysts loaded with metal nanosheets, possessing enhanced charge transfer efficiency between the large 2D/2D interfaces, exhibit unprecedented advantages in photocatalysis. However, the inhibitory influence of surfactants on catalysis limits their applications. Herein, surfactant-free Pd nanosheets (Pd NSs) with tunable size are in situ anchored on graphitic carbon nitride nanosheets (CNs). PdCl42− is used as the precursor and CO is used as both reducing and structure-directing agents. Moreover, by using the same strategy, surfactant-free Pd NSs can also be anchored onto other 2D materials, such as TiO2 nanoplates and graphene oxide (GO). Importantly, the obtained surface-clean Pd NSs/CN exhibits improved visible-light photocatalytic activity toward CO2 reduction to CO and CH4 compared with surfactant-coated Pd NSs/CN. This work affords a general and facile method for fabricating nanosheet supported surfactant-free 2D metals, and reveals the negative effects of surfactant on photocatalytic performance.
doi_str_mv 10.1039/d3cy01623d
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subjects Carbon dioxide
Carbon monoxide
Carbon nitride
Catalytic activity
Charge efficiency
Charge transfer
Chemical reduction
Graphene
Nanosheets
Palladium
Photocatalysis
Surfactants
Titanium dioxide
Two dimensional materials
title Surfactant-free 2D/2D Pd/g-C3N4 for enhanced photocatalytic CO2 reduction
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