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Title of Paper:Elucidating interfacial electronic bridge modulation via p–p orbital hybridization in dual‐piezoelectric heterojunction for piezo‐photocatalytic water decontamination

Journal:Chemical Engineering Journal

Place of Publication:Elsevier

Key Words:Piezo-photocatalyst; Orbital hybridization; Electronic bridge; Orbital interactions; Chlorophenols

Summary:Chlorophenols are typical refractory organic pollutants that are hard to remove by conventional photocatalysis due to rapid charge recombination and insufficient reactive oxygen species (ROS) generation. Piezo-photocatalysis is promising but limited by lack of understanding regarding interfacial chemical bonding and atomic orbital interactions in dual-piezoelectric heterojunctions. Here, an interfacially coupled BiFeO3/ZnIn2S4 dual-piezoelectric heterojunction catalyst was fabricated. Bi–S p–p orbital hybridization forms a stable interfacial electronic bridge that enhances the stability of the catalyst. Strain-induced polarization enhances the dipole moment, promoting the adsorption and activation of H2O and O2. This system drives the degradation of 2,4-dichlorophenol (2,4-DCP) through synergistic reactions. This work not only resolves the shortcoming of poor interface stability in traditional piezo-photocatalysts but also enhances the understanding of the mechanistic relationship between orbital hybridization and piezo-photocatalytic activity. It provides a design strategy for orbital hybridization between interfacial atoms for unique dual-piezoelectric heterojunction catalysts aimed at sustainable water decontamination.

First Author:Meng Dai

Correspondence Author:Zuoli He

All the Authors:Jingcai Chang,Yulin Huang,Hanxuan Li,Xiaoge Wu,Dong Zhai,Shuguang Wang

Document Code:180843

Discipline:Engineering

First-Level Discipline:Environmental Science and Engineering

Document Type:J

Volume:547

Page Number:180843

DOI Number:10.1016/j.cej.2026.180843

Number of Words:9185

Translation or Not:No

Date of Publication:2026-08

Included Journals:SCI

Links to Published Journals:https://www.sciencedirect.com/science/article/pii/S1385894726083051

Release Time:2026-08-17