Rational design of doped SnO2 pickering emulsions for simultaneous photocatalytic and adsorptive water purification

IF 6.6 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2026-06-25 DOI:10.1016/j.apsusc.2026.167678

Dmitry Kosyrev, Ivan Agapov, Artur Markarian, Evgenii Skripkin, Daniil Kolokolov, Natalia Bobrysheva, Mikhail Osmolowsky, Mikhail Voznesenskiy, Anastasiia Podurets, Olga Osmolovskaya

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引用次数: 0

Abstract

Fe3+-, Ni2+-, and Co2+-doped SnO2 nanoparticles were synthesized via a modified co-precipitation method with simultaneous introduction of precursor salts and surface-modifying agents, and subsequently employed as interfacial stabilizers in multifunctional Pickering emulsions. The surface-modified nanoparticles self-assembled at the oil – water interface, forming photocatalytic droplets capable of dye degradation and partial decomposition of diesel residues from contaminated water. Comprehensive characterization supported by spectroscopic analysis and quantum-chemical modeling elucidated the influence of dopant type and surface modifier distribution on photocatalytic activity and charge separation efficiency. The resulting doped SnO2-based emulsions exhibited high stability, recyclability, and sustained activity under visible light, demonstrating strong potential for integrated water purification systems under environmentally relevant conditions.

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同时光催化和吸附水净化的掺杂SnO2酸洗乳剂的合理设计

采用改进共沉淀法，同时引入前驱体盐和表面改性剂，合成了Fe3+-、Ni2+-和Co2+掺杂的SnO2纳米颗粒，并将其作为界面稳定剂应用于多功能Pickering乳状液中。表面修饰的纳米颗粒在油水界面自组装，形成光催化液滴，能够降解染料和部分分解污染水中的柴油残留物。在光谱分析和量子化学模拟的支持下，综合表征阐明了掺杂类型和表面改性剂分布对光催化活性和电荷分离效率的影响。所得的掺杂sno2基乳剂在可见光下表现出高稳定性、可回收性和持续活性，显示出在环境相关条件下集成水净化系统的强大潜力。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.