Work

Construction of Bi2Fe4O9/MXene Schottky heterojunction: Synergistic charge transfer for efficient photocatalytic degradation of ciprofloxacin

Year: 2026

Type: article

Abstract: MXene has become an emerging two-dimensional layered material of significant interest in the field of photocatalysis. Introducing Ti3C2-MXene at the semiconductor interface has become a promising strategy for enhancing the photocatalytic performance through charge carrier separation. In this study, a Bi₂Fe₄O₉/1%Ti₃C₂ (BFT-1) Schottky heterojunction photocatalyst was successfully synthesized to efficiently remove ciprofloxacin (CIP) from water. Under visible-light irradiation for 50 min, the degradation of CIP by BFT-1 reached 85.7%, which was 1.6 times that of the pure Bi₂Fe₄O₉ (BFO). The morphological characterization and photoelectrochemical analyses confirmed the successful synthesis of BFT-1. The Schottky heterojunction facilitated electron transfer and inhibited carrier recombination. Meanwhile, the BFT-1/Vis system demonstrated good adaptability to various environmental substrates in water. The BFT-1 photocatalyst also exhibited excellent stability and reusability over multiple cycles, along with minimal metal ion leaching. This research demonstrated the great potential of the BFT-1/Vis system as an efficient solution for the treatment of antibiotic-contaminated wastewater.

Source: Green Energy & Environment

DOI: 10.1016/j.gee.2026.02.002

Authors: Zizhen Wu, Zhao Wang, Jun Shi, Huiping Deng

Institutions: Kunming University of Science and Technology, Tongji University, Shanghai Institute of Pollution Control and Ecological Security

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: diamond

Funder: National Key Research and Development Program of China