Rational fabrication of S, N co-doped graphene quantum dots/PbBiO2I nanocomposite for boosted photocatalytic antibiotic degradation: interfacial engineering and mechanism insights

IF 3.3 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Research on Chemical Intermediates Pub Date : 2026-06-09 DOI:10.1007/s11164-026-06039-3

Ziang Chen, Yanbing Liu, Ting Zhou, Yu Shi, Yuanyuan Tao, Wei Jiang, Binxian Gu, Qingsong Hu

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引用次数: 0

Abstract

Developing green and efficient photocatalysts is crucial in addressing the energy crisis and environmental remediation. In this study, we synthesized novel S, N co-doped graphene quantum dots (S, N-GQDs) anchored PbBiO₂I nanospheres employing a reactive ionic liquid-assisted facile one-step solvothermal approach. We prepared a variety of S, N-GQDs/PbBiO₂I nanocomposite with different loading amounts of S, N-GQDs and investigated their photocatalytic performance. Among these, S, N-GQDs/PbBiO₂I-2 exhibits the highest degradation efficiency for antibiotic removal. The incorporation of S, N-GQDs significantly broadens the visible-light absorption range and accelerates the migration of photoinduced carriers, thereby enhancing photocatalytic activities. Various characterization techniques and experimental analyses were employed to explore the charge carrier transfer pathway in this system. Notably, the developed photocatalyst demonstrates two exceptional advantages: a broad-spectral response capability and environmentally-friendly properties, which are of significant relevance for practical applications. This study provides insights for the rational design of high-performance, wide-spectral-light-driven, and environmentally-friendly photocatalysts in the field of environmental remediation.

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S， N共掺杂石墨烯量子点/PbBiO2I纳米复合材料的合理制备促进光催化抗生素降解：界面工程和机制见解

开发绿色高效的光催化剂是解决能源危机和环境修复的关键。在这项研究中，我们采用反应性离子液体辅助一步溶剂热法合成了新型的S， N共掺杂石墨烯量子点（S, N- gqds）锚定PbBiO2I纳米球。我们制备了不同负载量的S， N-GQDs/PbBiO2I纳米复合材料，并研究了它们的光催化性能。其中，S， N-GQDs/PbBiO2I-2对抗生素的降解效率最高。S， N-GQDs的加入显著拓宽了可见光吸收范围，加速了光诱导载流子的迁移，从而增强了光催化活性。利用各种表征技术和实验分析来探索该体系中的载流子转移途径。值得注意的是，所开发的光催化剂具有两个特殊的优势：广谱响应能力和环境友好性，这对实际应用具有重要意义。本研究为在环境修复领域合理设计高性能、宽光谱、环保的光催化剂提供了参考。

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

Research on Chemical Intermediates 化学-化学综合

CiteScore

5.70

自引率

18.20%

发文量

229

审稿时长

2.6 months

期刊介绍： Research on Chemical Intermediates publishes current research articles and concise dynamic reviews on the properties, structures and reactivities of intermediate species in all the various domains of chemistry. The journal also contains articles in related disciplines such as spectroscopy, molecular biology and biochemistry, atmospheric and environmental sciences, catalysis, photochemistry and photophysics. In addition, special issues dedicated to specific topics in the field are regularly published.