Ce3+-Doped Mg-Zn Ferrite/CNTs Hybrid Nanocomposites for Efficient Sunlight-Driven Dye Degradation

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-10-10 DOI:10.1007/s11270-025-08694-5

Parveen Kumari, Krishan Kumar

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Abstract

The reckless discharge of dye-laden wastewater by textile industries poses serious environmental threats. Developing efficient photocatalysts to break harmful dyes into less toxic compounds has become increasingly crucial. This study investigates the magnetic behavior and photocatalytic performance of Ce³⁺-doped Mg-Zn ferrite/CNTs composite for degrading the Methylene Blue (MB) dye under sunlight. Synthesized using the co-precipitation route, the samples were characterized by X-ray diffraction, which confirmed the formation of a spinel ferrite integrated with carbon nanotubes (CNTs). Meanwhile, TEM analysis revealed a spherical morphology with particle sizes ranging from 8.04 to 12.34 nm. Magnetic measurements at room temperature under an applied field of ± 15 kOe revealed enhanced superparamagnetism, characterized by low coercivity and remanence. A decrease in band gap is observed with increasing Ce³⁺ concentration. Photocatalytic tests showed significant improvement in dye degradation, with CMZC10 achieving 93.83% efficiency within 90 min. The results highlight Ce³⁺-doped Mg-Zn ferrite/CNT composites as a promising multifunctional material for environmental remediation, featuring magnetic recovery and reusability with minimal loss in efficiency upon reuse.

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Ce3+掺杂Mg-Zn铁氧体/碳纳米管杂化纳米复合材料用于日光驱动染料的高效降解

纺织工业恣意排放含染料废水对环境构成严重威胁。开发高效的光催化剂将有害染料分解成毒性较小的化合物已变得越来越重要。本研究研究了Ce3+掺杂Mg-Zn铁氧体/CNTs复合材料在阳光下降解亚甲基蓝（MB）染料的磁性行为和光催化性能。采用共沉淀法合成，通过x射线衍射对样品进行了表征，证实了尖晶石铁氧体与碳纳米管（CNTs）的结合。同时，TEM分析显示其形貌为球形，粒径范围为8.04 ~ 12.34 nm。室温下±15 kOe磁场下的磁测量显示，超顺磁性增强，具有低矫顽力和剩余物的特征。带隙随Ce3+浓度的增加而减小。光催化实验表明，在90 min内，CMZC10的染料降解效率达到93.83%。结果表明，Ce3+掺杂Mg-Zn铁氧体/碳纳米管复合材料是一种很有前途的多功能环境修复材料，具有磁性回收和可重复使用的特点，在重复使用时效率损失最小。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.