{"title":"Green Synthesis of Copper Oxide Nanoparticles (CuONPs) using Ricinus Communis: Efficient Photocatalytic Dye Degradation and Antibacterial Applications","authors":"Sumalatha Boddu, Bhanu Prasad Marri, Raveena Malkari Katika, Indira Mikkili, John Babu Dulla, Venkata Narayana Allugunulla, Sireesha Malladi, Anoar Ali Khan","doi":"10.1007/s11270-025-07841-2","DOIUrl":null,"url":null,"abstract":"<div><p>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 <i>Escherichia coli</i> (17.25 ± 0.06 mm) and <i>Bacillus sphaericus</i> (16.80 ± 0.06 mm), alongside moderate activity against other pathogens such as <i>Staphylococcus aureus</i> (14.80 ± 0.04 mm), <i>Streptococcus lactis</i> (14.60 ± 0.09 mm), and <i>Klebsiella pneumoniae</i> (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.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 4","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-025-07841-2","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
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.
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
