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Construction atomic-level N-P charge transfer channel for boosted CO2 photoreduction by Zheyang Liu; Jianli Liang; Qianqian Song; Yang Li; Zhiquan Zhang; Min Zhou; Wei Wei; Hui Xu; Chun-Sing Lee; Huaming Li; Zhifeng Jiang is a Energy article available to read on EtoBox.

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Efficient conversion of CO 2 to high value-added chemical products is a promising strategy for achieving carbon neutrality. Although the photocatalyst technique has been made widespread researched, highly efficient photoreduction CO 2 with metal-free photocatalysts remains a challenge. Herein, we report a zero-dimensional black phosphorus quantum dots (BPQDs)-decorated one-dimensional carbon nitride nanotubes (CNNT) photocatalyst that reduces CO 2 to CO with a rate of 44.6 μmol g -1 h -1 , which is better than the similar photocatalysts and pristine carbon nitride nanotubes. Synchrotron radiation XAFS measurements substantiate the construction of N-P electron transfer channels within BPQDs and CNNT. Time-resolved PL spectrum demonstrates the faster separated electron hole pairs. In situ irradiated X-ray photoelectron spectroscopy confirms the photogeneratedelectron flow trend and the active site of photocatalytic reaction. Moreover, the main intermediate \*COOH is verified by in situ FT-IR characterization which is corresponding to the previous research. The construction of atomic-level N-P charge transfer channel efficiently facilitates the charge transfer and accelerates the cata

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Author

Zheyang Liu; Jianli Liang; Qianqian Song; Yang Li; Zhiquan Zhang; Min Zhou; Wei Wei; Hui Xu; Chun-Sing Lee; Huaming Li; Zhifeng Jiang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Energy (Physical Sciences)