{"title":"天然深共晶溶剂前驱体碳量子点高效检测废水中的Cu2+。","authors":"Xiaofeng Zhang, Biao Du, Qinghong Wang, Yali Zhan, Hongwei Ren, Chunmao Chen","doi":"10.1080/09593330.2025.2499975","DOIUrl":null,"url":null,"abstract":"<p><p>Heavy metal pollution has become an urgent environmental problem. However, the traditional heavy metal ions detection methods mostly need large precision instruments, which have disadvantages such as complex sample processing, long detection time and high cost. Carbon quantum dots (CQDs) are efficient to solve the problems of fewer active sites and poor selectivity. Natural deep eutectic solvents (NADESs), a green precursor with adjustable structure design, can purposefully modify the required functional groups on the surface of CQDs and make it possess better performance. In this study, NA-CQDs from NADESs using one-step solvothermal method were successfully synthesized. The results showed that the diameters of NA-CQDs range from 3 to 6 nm. The optical properties indicated that it has excellent optoelectronic properties, excitation-dependent and pH stability. It proved that the fluorescent intensity of Cu<sup>2+</sup> was strongly quenched by the NA-CQDs compared to other metal ions and was linear in the range of 0.0001-50 μM. The mechanism of NA-CQDs synthesis and Cu<sup>2+</sup> detection is also speculated. NA-CQDs have great potential in the detection of heavy metals in wastewater.</p>","PeriodicalId":12009,"journal":{"name":"Environmental Technology","volume":" ","pages":"4237-4251"},"PeriodicalIF":2.0000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient detection of Cu<sup>2+</sup> in wastewater by carbon quantum dots derived from natural deep eutectic solvents precursor.\",\"authors\":\"Xiaofeng Zhang, Biao Du, Qinghong Wang, Yali Zhan, Hongwei Ren, Chunmao Chen\",\"doi\":\"10.1080/09593330.2025.2499975\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Heavy metal pollution has become an urgent environmental problem. However, the traditional heavy metal ions detection methods mostly need large precision instruments, which have disadvantages such as complex sample processing, long detection time and high cost. Carbon quantum dots (CQDs) are efficient to solve the problems of fewer active sites and poor selectivity. Natural deep eutectic solvents (NADESs), a green precursor with adjustable structure design, can purposefully modify the required functional groups on the surface of CQDs and make it possess better performance. In this study, NA-CQDs from NADESs using one-step solvothermal method were successfully synthesized. The results showed that the diameters of NA-CQDs range from 3 to 6 nm. The optical properties indicated that it has excellent optoelectronic properties, excitation-dependent and pH stability. It proved that the fluorescent intensity of Cu<sup>2+</sup> was strongly quenched by the NA-CQDs compared to other metal ions and was linear in the range of 0.0001-50 μM. The mechanism of NA-CQDs synthesis and Cu<sup>2+</sup> detection is also speculated. NA-CQDs have great potential in the detection of heavy metals in wastewater.</p>\",\"PeriodicalId\":12009,\"journal\":{\"name\":\"Environmental Technology\",\"volume\":\" \",\"pages\":\"4237-4251\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Technology\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1080/09593330.2025.2499975\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/5/12 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q3\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Technology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/09593330.2025.2499975","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/5/12 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Efficient detection of Cu2+ in wastewater by carbon quantum dots derived from natural deep eutectic solvents precursor.
Heavy metal pollution has become an urgent environmental problem. However, the traditional heavy metal ions detection methods mostly need large precision instruments, which have disadvantages such as complex sample processing, long detection time and high cost. Carbon quantum dots (CQDs) are efficient to solve the problems of fewer active sites and poor selectivity. Natural deep eutectic solvents (NADESs), a green precursor with adjustable structure design, can purposefully modify the required functional groups on the surface of CQDs and make it possess better performance. In this study, NA-CQDs from NADESs using one-step solvothermal method were successfully synthesized. The results showed that the diameters of NA-CQDs range from 3 to 6 nm. The optical properties indicated that it has excellent optoelectronic properties, excitation-dependent and pH stability. It proved that the fluorescent intensity of Cu2+ was strongly quenched by the NA-CQDs compared to other metal ions and was linear in the range of 0.0001-50 μM. The mechanism of NA-CQDs synthesis and Cu2+ detection is also speculated. NA-CQDs have great potential in the detection of heavy metals in wastewater.
期刊介绍:
Environmental Technology is a leading journal for the rapid publication of science and technology papers on a wide range of topics in applied environmental studies, from environmental engineering to environmental biotechnology, the circular economy, municipal and industrial wastewater management, drinking-water treatment, air- and water-pollution control, solid-waste management, industrial hygiene and associated technologies.
Environmental Technology is intended to provide rapid publication of new developments in environmental technology. The journal has an international readership with a broad scientific base. Contributions will be accepted from scientists and engineers in industry, government and universities. Accepted manuscripts are generally published within four months.
Please note that Environmental Technology does not publish any review papers unless for a specified special issue which is decided by the Editor. Please do submit your review papers to our sister journal Environmental Technology Reviews at http://www.tandfonline.com/toc/tetr20/current