具有协同活性的MoO3/NiFe2O4异质结光催化剂在水净化中的应用

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

Water, Air, & Soil Pollution Pub Date : 2025-10-04 DOI:10.1007/s11270-025-08557-z

Anju Ganesh, Sanu Mathew Simon, Nayomi John, Surjeet Chahal, Smitha Thankachan

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引用次数: 0

摘要

工业废水，特别是偶氮染料对水体的污染日益严重，对环境构成严重威胁。在这项研究中，我们报道了一种用于降解刚果红染料的高效MoO3/NiFe2O4纳米复合光催化剂的开发。采用溶胶-凝胶法制备NiFe2O4纳米颗粒和水热法制备α- MoO3纳米棒。结构和形态分析证实了复合材料的成功形成。该光催化剂表现出优异的活性，在紫外光下30分钟内对5ppm刚果红溶液的降解率达到90.9%，这归功于有效的带隙调谐减少了电子-空穴复合。此外，该复合材料对大肠杆菌和金黄色葡萄球菌具有抗菌活性，并且具有良好的稳定性和可重复使用性。这些结果表明，MoO3/NiFe2O4是修复染料污染废水的一个很有前途的候选材料。

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MoO3/NiFe2O4 Heterojunction Photocatalyst with Synergistic Activity for Water Purification Applications

The increasing contamination of water bodies by industrial effluents, especially azo dyes, poses a serious environmental threat. In this study, we report the development of a highly efficient MoO₃/NiFe₂O₄ nanocomposite photocatalyst for the degradation of Congo red dye. The composite was synthesized by ultrasonication of sol–gel-derived NiFe₂O₄ nanoparticles and hydrothermally synthesized α- MoO₃ nanorods. Structural and morphological analyses confirmed the successful formation of the composite. The photocatalyst exhibited excellent activity, achieving 90.9% degradation of 5 ppm Congo red solution within 30 min under UV light, attributed to effective band gap tuning that reduces electron–hole recombination. Additionally, the composite demonstrated antibacterial activity against Escherichia coli and Staphylococcus aureus, along with good stability and reusability. These results suggest that MoO₃/NiFe₂O₄ is a promising candidate for the remediation of dye-contaminated wastewater.

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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.