In:
physica status solidi (RRL) – Rapid Research Letters, Wiley, Vol. 15, No. 9 ( 2021-09)
Abstract:
CoO nanomaterials have been identified as a potential visible‐light‐driven photocatalyst. However, they suffer from the rapid deactivation derived from the aggregation and thermally induced oxidation of CoO. Herein, a facile and scalable strategy is proposed to effectively inhibit the aggregation and oxidation of CoO via the construction of a 2D/2D amorphous CoO (a‐CoO)/g‐C 3 N 4 (CN) nanotubular heterojunction. The synthesized 2D/2D CN/a‐CoO heterojunction shows appreciably improved activity toward rhodamine B (RhB) degradation and no deactivation is detected even after four consecutive photodegradation cycles. Moreover, the optimized 2D/2D CN/a‐CoO heterojunction exhibits hydrogen evolution rate of 428.8 μmol h −1 g −1 , which is 5.9 times than that of CN under visible‐light irradiation. The superior photocatalytic performance is attributed to the large interface between 2D components, the amorphous structure of disordered a‐CoO, the multiple scattering in the tubular heterojunction, and the efficient spatial charge‐separation through CoN bond due to the synergistic coupling effects between CN and a‐CoO. This work is helpful to promote the application of a‐CoO in photocatalysis while the unique 2D/2D heterojunction could be the fundamental basis for emerging applications in energy‐related and beyond.
Type of Medium:
Online Resource
ISSN:
1862-6254
,
1862-6270
DOI:
10.1002/pssr.202100254
Language:
English
Publisher:
Wiley
Publication Date:
2021
detail.hit.zdb_id:
2259465-6
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