Ferroelectric field enhanced tribocatalytic hydrogen production and RhB dye degradation by tungsten bronze ferroelectrics

Zhihong Zhu; Zuheng Jin; Chuan Jiang; Sha Wu; Changzheng Hu; Laijun Liu; Liang Fang; Zhenxiang Cheng

doi:10.1039/d4nr00868e

Ferroelectric field enhanced tribocatalytic hydrogen production and RhB dye degradation by tungsten bronze ferroelectrics

Nanoscale. 2024 Jun 6;16(22):10597-10606. doi: 10.1039/d4nr00868e.

Authors

Zhihong Zhu¹, Zuheng Jin¹, Chuan Jiang¹, Sha Wu¹, Changzheng Hu^{1

2}, Laijun Liu^{1

2}, Liang Fang^{1

2}, Zhenxiang Cheng³

Affiliations

¹ Key Laboratory of Nonferrous Metal Oxide Electronic Functional Materials and Devices, Education Department of Guangxi, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China. huchzh@foxmail.com.
² Collaborative Innovation Centre for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guilin University of Technology, Guilin, 541004, China.
³ Institute for Superconducting and Electronic Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia. cheng@uow.edu.au.

PMID: 38758161
DOI: 10.1039/d4nr00868e

Abstract

Tribocatalysis is a method that converts mechanical energy into chemical energy. In this study, we synthesized tungsten bronze structured Ba_0.75Sr_0.25Nb_1.9Ta_0.1O₆ ferroelectric ceramic submicron powder using a traditional solid-state route, and the powder exhibited excellent performance in tribocatalytic water splitting for hydrogen production. Under the friction stirring of three polytetrafluoroethylene (PTFE) magnetic stirring bars in pure water, the rate of hydrogen generation by the Ba_0.75Sr_0.25Nb_1.9Ta_0.1O₆ ferroelectric submicron powder is 200 μmol h^-1 g^-1, and after 72 hours, the accumulated hydrogen production reaches 15 892.8 μmol g^-1. Additionally, this ferroelectric tungsten bronze ferroelectric material also exhibits excellent tribocatalytic degradation ability toward RhB dyes, with degradation efficiency reaching 96% in 2 hours. The study of tribocatalysis based on tungsten bronze ferroelectric materials represents a significant step forward in versatile energy utilization for clean energy and environmental wastewater degradation.