Epitaxial BiP5O14 layer on BiOI nanosheets enhancing the photocatalytic degradation of phenol via interfacial internal-electric-field

Wu, Zhaohui ¹Jing, Jianfang ²Zhang, Kunfeng ²Li, Wenlu ²Yang, Jun ²Shen, Jie ¹Zhang, Shumin ¹Xu, Kaiqiang ¹Zhang, Shiying ¹Zhu, Yongfa²

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作者信息

1. Changsha Univ
2. Tsinghua Univ
折叠

Abstract

BiOI/BiP5O14 heterostructure with enhanced interfacial internal electric field for directional charge transfer and separation effectively were constructed successfully through epitaxial BiP5O14 layer on the surface of BiOI nanosheets. Dramatical enhanced internal electric field of BiOI/BiP5O14 heterostructure was established when BiP5O14 monolayer epitaxial grow on the surface of BiOI nanosheets by adding 2% of NaH2PO4. As a result, this heterostructure could boost the photodegradation and mineralization of phenol. Compared to pristine BiOI nanosheets, the photocatalytic reaction constant rates of phenol over the BiOI/BiP5O14 heterostructure were elevated over 8.5 times, and the corresponding mineralization ability was also enhanced 8.9 times due to the effective and directional charges transfer and separation. This work provides an evidential proof of rational designing heterostructure via epitaxial growth, and confirms the internal electric field drive charge transfer and separation directionally for promoted photocatalytic performances.

Key words

Epitaxial growth/Interfacial internal electric field/Directional transfer/BiOI/BiP5O14 heterostructure/SOLID-SOLUTION/HETEROJUNCTION/PERFORMANCE/FABRICATION/HETEROSTRUCTURE/ENHANCEMENT/REMOVAL/ABILITY

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量34

参考文献量52

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