Constructing Zn-P charge transfer bridge over ZnFe2O4-black phosphorus 3D microcavity structure: Efficient photocatalyst design in visible-near-infrared region

Lijing Wang; Renquan Guan; Yafang Qi; Fuli Zhang; Pan Li; Junmei Wang; Peng Qu; Gang Zhou; Weilong Shi

doi:10.1016/j.jcis.2021.05.043

Constructing Zn-P charge transfer bridge over ZnFe₂O₄-black phosphorus 3D microcavity structure: Efficient photocatalyst design in visible-near-infrared region

J Colloid Interface Sci. 2021 Oct 15:600:463-472. doi: 10.1016/j.jcis.2021.05.043. Epub 2021 May 12.

Authors

Lijing Wang¹, Renquan Guan², Yafang Qi³, Fuli Zhang³, Pan Li³, Junmei Wang³, Peng Qu³, Gang Zhou⁴, Weilong Shi⁵

Affiliations

¹ Henan Engineering Center of New Energy Battery Materials, Henan D&A Engineering Center of Advanced Battery Materials, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China. Electronic address: wanglijing1989@126.com.
² Key Laboratory of Preparation and Applications of Environmentally Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
³ Henan Engineering Center of New Energy Battery Materials, Henan D&A Engineering Center of Advanced Battery Materials, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
⁴ Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China. Electronic address: Gangzhou@hhu.edu.cn.
⁵ School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China. Electronic address: shiwl@just.edu.cn.

PMID: 34030006
DOI: 10.1016/j.jcis.2021.05.043

Abstract

Black phosphorus (BP) is one of the most promising visible-near-infrared light-driven photocatalysts with favorite photoelectric properties and unique tunable direct band gap. Nevertheless, the further development of BP is hindered by the fast carrier recombination rate and high Gibbs free energy. Herein, an innovative strategy is developed for the controllable construction of Zn-P bonds induced zinc ferrite/black phosphorus (ZnFe₂O₄-BP) three dimensions (3D) microcavity structure. The Zn-P bonds serve as an efficient channel to optimize the carrier transport and Gibbs free energy of BP simultaneously. Besides, the unique 3D core-shell microcavity structure maintains the multiple reflections of sunlight inside the catalysts, which greatly improves the sunlight utilization upon photocatalysis. An optimized photocatalytic hydrogen production rate of 560 µmol h^-1g^-¹ under near-infrared light (>820 nm) is achieved. A possible photocatalytic mechanism is proposed based on a series of experimental characterizations and theoretical calculations, this work provides a new sight to design high-quantity BP-based full-spectrum photocatalysts for solar energy conversion.

Keywords: Black phosphorus; Microcavity structure; Photocatalytic water splitting; Zn-P bonds; ZnFe(2)O(4).