Green Synthesis of Copper Oxide Nanoparticles (CuONPs) using Ricinus Communis: Efficient Photocatalytic Dye Degradation and Antibacterial Applications

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Water, Air, & Soil Pollution Pub Date : 2025-03-10 DOI:10.1007/s11270-025-07841-2

Sumalatha Boddu, Bhanu Prasad Marri, Raveena Malkari Katika, Indira Mikkili, John Babu Dulla, Venkata Narayana Allugunulla, Sireesha Malladi, Anoar Ali Khan

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Abstract

This study focuses on the green synthesis of Copper Oxide Nanoparticles (CuONPs) using Ricinus communis leaf extract, emphasizing their photocatalytic and antibacterial applications. The X-ray diffraction (XRD) analysis confirmed the crystalline structure of the CuONPs with an average crystallite size of 52–55 nm, while EDX and FESEM analyses verified their purity and spherical morphology, showing particle sizes between 50 and 68 nm. FTIR analysis identified phenols and flavonoids in the plant extract as key agents in nanoparticle synthesis, and XPS analysis provided insights into the surface chemistry of CuONPs. The CuONPs demonstrated exceptional photocatalytic efficiency by degrading 96.37% of a 10 ppm Congo Red (CR) dye solution within 60 min under UV light, following pseudo-first-order kinetics. Furthermore, the CuONPs exhibited strong antibacterial activity, with the highest inhibition zones against Escherichia coli (17.25 ± 0.06 mm) and Bacillus sphaericus (16.80 ± 0.06 mm), alongside moderate activity against other pathogens such as Staphylococcus aureus (14.80 ± 0.04 mm), Streptococcus lactis (14.60 ± 0.09 mm), and Klebsiella pneumoniae (12.26 ± 0.08 mm). The nanoparticles also maintained high photocatalytic stability over six cycles with minimal loss in efficiency. This research highlights a sustainable, economical, and effective approach for synthesizing CuONPs, demonstrating their potential as photocatalysts for dye degradation and as antimicrobial agents, contributing to eco-friendly industrial wastewater treatment.

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蓖麻绿色合成氧化铜纳米粒子：高效光催化染料降解及抗菌应用

本文研究了蓖麻叶提取物绿色合成氧化铜纳米颗粒（CuONPs），重点介绍了其光催化和抗菌应用。x射线衍射（XRD）分析证实了CuONPs的晶体结构，平均晶粒尺寸为52-55 nm，而EDX和FESEM分析证实了它们的纯度和球形形貌，晶粒尺寸在50 - 68 nm之间。FTIR分析发现植物提取物中的酚类和黄酮类化合物是纳米颗粒合成的关键因子，XPS分析为CuONPs的表面化学性质提供了新的见解。CuONPs表现出优异的光催化效率，在紫外光下60分钟内降解96.37%的10 ppm刚果红（CR）染料溶液，遵循准一级动力学。CuONPs对大肠杆菌（17.25±0.06 mm）和球形芽孢杆菌（16.80±0.06 mm）的抑菌活性最高，对金黄色葡萄球菌（14.80±0.04 mm）、乳酸链球菌（14.60±0.09 mm）和肺炎克雷伯菌（12.26±0.08 mm）的抑菌活性中等。纳米颗粒在六个循环中保持了高的光催化稳定性，效率损失最小。本研究强调了一种可持续、经济、有效的合成CuONPs的方法，展示了它们作为染料降解光催化剂和抗菌剂的潜力，有助于生态友好的工业废水处理。图形抽象

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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.