Interfacial assembled porous bismuthene/Ti3C2Tx MXene heterostructure for highly efficient capacitive deionization

Fan Zhao; Yaning Zhang; Siqi Gong; Huiting Xu; Junjie Qi; Honghai Wang; Chunli Li; Wenchao Peng; Jiapeng Liu

doi:10.1016/j.jcis.2023.09.035

Interfacial assembled porous bismuthene/Ti₃C₂T_x MXene heterostructure for highly efficient capacitive deionization

J Colloid Interface Sci. 2023 Dec 15;652(Pt B):2139-2146. doi: 10.1016/j.jcis.2023.09.035. Epub 2023 Sep 7.

Authors

Fan Zhao¹, Yaning Zhang¹, Siqi Gong¹, Huiting Xu¹, Junjie Qi¹, Honghai Wang¹, Chunli Li², Wenchao Peng³, Jiapeng Liu⁴

Affiliations

¹ School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China.
² School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China. Electronic address: lichunli_hebut@126.com.
³ School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
⁴ School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China. Electronic address: liujiapeng@hebut.edu.cn.

PMID: 37703683
DOI: 10.1016/j.jcis.2023.09.035

Abstract

Capacitive deionization (CDI) is perceived as a promising technology for freshwater production owing to its environmentally friendly nature and low energy consumption. To date, the development of high-performance electrode materials represents the foremost challenge for CDI technology. In this work, the porous bismuthene/MXene (P-Bi-ene/MXene) heterostructure was synthesized using a simple interfacial self-assembly method with two-dimensional (2D) bismuthene and Ti₃C₂T_x MXene. Within the P-Bi-ene/MXene heterostructure, the porous structure can increase the active site and facilitate ion transport. Simultaneously, MXene effectively enhances the conductivity of the heterostructure, resulting in accelerating electron transport. Due to these attributes, the P-Bi-ene/MXene heterostructure demonstrates high desalination capacity (90.0 mg/g), fast desalination rate, and good cycling performance. The simple self-assembly strategy between 2D/2D materials described herein may offer inspirations for the synthesis of innovative electrode materials with high performance.

Keywords: Bismuthene; Capacitive deionization; MXene; Porous nanohybrids; Self-assembly.