Facile Green and Hydrothermal Synthesis of ZnO Nanorods using Eucalyptus Extract: Photocatalytic Degradation of Cationic Dye

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-04-14 DOI:10.1007/s11270-025-07968-2

Fares Chabira, Mahdia Toubane, Razika Zaïr Tala-Ighil, Muhammad Humayun, Suresh Sagadevan, Chun Ouyang, Mohamed Bououdina, George Z. Kyzas

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引用次数: 0

Abstract

The present study aimed to use Eucalyptus leaves extract for the green synthesis of ZnO oxide (ZnO) nanorods (NRs) using the hydrothermal method. The X-ray diffraction (XRD) patterns confirmed that the ZnO NRs had a hexagonal crystal structure with high crystal quality. FTIR analysis revealed the presence of functional groups associated to the formation of ZnO NRs. The optical band gap was calculated using the Tauc plot. Scanning electron microscopy (SEM) revealed rod-like morphology of the as-fabricated ZnO, which is further confirmed by the transmission electron microscopy (TEM) analysis. Furthermore, the biosynthesized ZnO NRs were used as photocatalysts for degradation of Rhodamine B (RhB) dye under ultraviolet radiation. Based on these results, ZnO NRs with a concentration of 20 mL of the eucalyptus extract revealed exceptional performance with a photocatalytic degradation rate of 94.77% under UV irradiation for 90 min. According to these results, wastewater can be treated effectively via the designed catalysts using the green and facile synthesis techniques.

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利用桉树提取物轻松实现氧化锌纳米棒的绿色水热合成：阳离子染料的光催化降解

本研究以桉叶提取物为原料，采用水热法绿色合成氧化锌纳米棒。x射线衍射（XRD）图谱证实了ZnO纳米粒子具有六方晶体结构，晶体质量高。FTIR分析揭示了与ZnO核磁共振形成相关的官能团的存在。利用Tauc图计算光学带隙。扫描电子显微镜（SEM）显示ZnO的棒状形貌，透射电子显微镜（TEM）分析进一步证实了这一点。此外，还利用生物合成的ZnO NRs作为光催化剂，在紫外辐射下降解罗丹明B （RhB）染料。实验结果表明，当桉叶提取物浓度为20 mL时，在UV照射90 min的情况下，ZnO纳米催化剂的光催化降解率达到94.77%。实验结果表明，所设计的催化剂可以实现绿色、简便的合成工艺，有效地处理废水。

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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.