物理化学学报2026，Vol.42Issue(1)：140-152,13.DOI:10.1016/j.actphy.2025.100157
FeOOH调节Bi12O17Cl2@FeOOH异质结中Bi12O17Cl2的表面势阱深度以增强压电电荷转移和压电自芬顿催化
Modulate surface potential well depth of Bi12O17Cl2 by FeOOH in Bi12O17Cl2@FeOOH heterojunction to boost piezoelectric charge transfer and piezo-self-Fenton catalysis
摘要
Abstract
Although the design of heterojunction piezoelectric catalysts has significantly enhanced catalytic activity,the regulatory mechanisms of heterojunction interfaces on surface potential wells during piezoelectric processes and their impact on carrier migration still lack systematic investigation.This work constructs an enhance interface interaction heterointerface between amorphous FeOOH and Bi12O17Cl2(BOC)in Bi12O17Cl2@FeOOH through a self-assembly strategy.This strong interfacial interaction significantly enhances interface polarity can substantially suppress the stress-responsive capability of surface charges on BOC(maximum reduction reached as high as 63%-98%of original value).This significantly reduces the depth of surface potential wells during piezoelectric processes,thereby effectively weakening piezoelectric charge confinement while promoting charge transfer.Concurrently,Bi-O-Fe chemical bonds formed at the interface and establish charge transport channels.These synergistic mechanisms elevate the H2O2 production rate to 3.04 mmol g-1 h-1 for participate in the piezoelectric self-Fenton reaction and the removal rate of total organic carbon increased 3 fold(18.6%vs.55.8%).关键词
压电催化剂/势阱/电荷传输通道/界面效应/表面电场Key words
Piezoelectric catalyst/Potential well/Charge transport channels/Interfacial effect/Surface electric field分类
化学化工引用本文复制引用
邱江源,于涛,陈均鑫,李文轩,张晓萱,李金生,郭瑞,黄在银,刘宣文..FeOOH调节Bi12O17Cl2@FeOOH异质结中Bi12O17Cl2的表面势阱深度以增强压电电荷转移和压电自芬顿催化[J].物理化学学报,2026,42(1):140-152,13.基金项目
国家自然科学基金(21873048,22263001)和秦皇岛市重点研发计划(202302B013)资助项目 （21873048,22263001）
