Construction of Ag2WO4/CuBi2O4 S-Scheme Heterojunctions with Enhanced Sonocatalytic Performance for the Removal of Tetracycline: Characterization, Sonocatalytic Mechanism, and Degradation Pathways

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-05-29 DOI:10.1021/acs.langmuir.5c00744

Yangcheng Liu, Yang Han, Haitao Qiu, Maoqi Yang, Meng Zhang, Yang Wang, Zheng Xiang, Wei Liu, Xin Wang

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引用次数: 0

Abstract

This study successfully synthesized Ag₂WO₄/CuBi₂O₄ (ACBO) composite materials via a two-step method. Tetracycline (TET) was employed as a model pollutant to evaluate the sonocatalytic performance of Ag₂WO₄/CuBi₂O₄ composite materials. Among all samples, ACBO-30 exhibited the most outstanding sonocatalytic activity. Under optimal experimental conditions, the removal efficiency of TET reached 98.06 ± 1.10%. Based on the results of active species trapping experiments and X-ray photoelectron spectroscopy, it was confirmed that an S-scheme heterojunction formed between Ag₂WO₄ and CuBi₂O₄, which effectively promoted the separation of electron–hole pairs and significantly enhanced the sonocatalytic performance of CuBi₂O₄. Cyclic experiments further demonstrated that the Ag₂WO₄/CuBi₂O₄ composite catalyst possessed excellent reusability and stability. Through high-performance liquid chromatography–mass spectrometry (HPLC-MS) analysis, several plausible conversion pathways of the TET were proposed. Biological toxicity tests verified that the sonocatalytic technology could degrade TET into less toxic byproducts. This study provides valuable insights into the design and development of novel sonocatalysts for the efficient treatment of pharmaceutical wastewater.

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具有增强声催化性能的Ag2WO4/CuBi2O4 S-Scheme异质结的构建：表征、声催化机理和降解途径

本研究通过两步法成功合成了Ag2WO4/CuBi2O4 （ACBO）复合材料。以四环素（TET）为模型污染物，对Ag2WO4/CuBi2O4复合材料的声催化性能进行了评价。在所有样品中ACBO-30表现出最突出的声催化活性。在最佳实验条件下，TET的去除率达到98.06±1.10%。基于活性物质捕获实验和x射线光电子能谱结果，证实了Ag2WO4与CuBi2O4之间形成了s型异质结，有效促进了电子-空穴对的分离，显著提高了CuBi2O4的声催化性能。循环实验进一步证明了Ag2WO4/CuBi2O4复合催化剂具有良好的可重复使用性和稳定性。通过高效液相色谱-质谱（HPLC-MS）分析，提出了TET的几种可能转化途径。生物毒性试验证实声催化技术可将TET降解为毒性较小的副产物。该研究为高效处理制药废水的新型声催化剂的设计和开发提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).