Construction atomic-level N-P charge transfer channel for boosted CO2 photoreduction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Zheyang Liu
  • Qianqian Song
  • Zhiquan Zhang
  • Min Zhou
  • Wei Wei
  • Hui Xu
  • Huaming Li
  • Zhifeng Jiang

Detail(s)

Original languageEnglish
Article number122472
Journal / PublicationApplied Catalysis B: Environmental
Volume328
Online published13 Feb 2023
Publication statusPublished - 5 Jul 2023

Abstract

Efficient conversion of CO2 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 CO2 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 CO2 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 photogenerated-electron 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 catalytic rate. This work provides a novel insight into the design of BPQDs-anchoring heterostructures for photocatalytic CO2 reduction. © 2023 Elsevier B.V.

Research Area(s)

  • Black phosphorus quantum dots, Carbon nitride nanotube, CO2 photoreduction

Citation Format(s)

Construction atomic-level N-P charge transfer channel for boosted CO2 photoreduction. / Liu, Zheyang; Liang, Jianli; Song, Qianqian et al.
In: Applied Catalysis B: Environmental, Vol. 328, 122472, 05.07.2023.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review