In-situ formation of Bi-O-C bonds on BiOCl/azo-porous organic polymers heterostructure for enhanced visible light-driven photocatalytic activity

IF 5.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL Surfaces and Interfaces Pub Date : 2025-03-11 DOI:10.1016/j.surfin.2025.106208

Xiang Li , Qiyao Li , Yunzhu Wang , Nengsheng Liu , Wanjin Yu , Chunxia Liu , Ping Du , Yi Xia , Sufang He

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Abstract

Porous organic polymers (POPs) are highly effective in wastewater decontamination owing to enhanced light-harvesting, abundant active sites, and tunable band structures. In this study, a novel heterojunction was designed and constructed by coupling oxygen vacancy BiOCl and azo-porous organic polymers (A-POP) through an in-situ solvothermal reaction. The characterization results revealed that the Bi-O-C bonds at the interface of BiOCl/A-POP heterojunction promoted the reinforcement of the built-in electric field and increased oxygen vacancies, thereby improving the interface migration of photogenerated carriers and photocatalytic performance. The BiOCl/A-POP composites exhibited enhanced photocatalytic degradation of Rhodamine B (RhB), achieving a maximum degradation of 90 % within 20 min under visible light. In addition, the probable photodegradation pathways and mechanisms were proposed based on experiments and density functional theory calculations. This study offers a new approach to developing heterostructured photocatalysts through inorganic/organic coupling to eliminate pollutants from wastewater.

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多孔有机聚合物（POPs）具有增强的光收集能力、丰富的活性位点和可调的带状结构，因此在废水净化方面非常有效。在本研究中，通过原位溶热反应将氧空位 BiOCl 和偶氮多孔有机聚合物（A-POP）耦合在一起，设计并构建了一种新型异质结。表征结果表明，BiOCl/A-POP异质结界面上的Bi-O-C键促进了内置电场的增强和氧空位的增加，从而改善了光生载流子的界面迁移和光催化性能。BiOCl/A-POP 复合材料增强了对罗丹明 B (RhB) 的光催化降解能力，在可见光条件下，20 分钟内的最大降解率达到 90%。此外，还根据实验和密度泛函理论计算提出了可能的光降解途径和机制。这项研究为通过无机/有机耦合开发异质结构光催化剂以消除废水中的污染物提供了一种新方法。

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)