Sewage sludge in microwave oven: A sustainable synthetic approach toward carbon dots for fluorescent sensing of para-Nitrophenol
文献类型：期刊论文
| 作者 | Hu, Yaoping; Gao, Zhijin |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 382 |
| 关键词 | GRAPHENE QUANTUM DOTS CHAIN FATTY-ACIDS GREEN SYNTHESIS HYDROTHERMAL TREATMENT FORMATION MECHANISM P-NITROPHENOL WASTE PAPER NITROGEN SULFUR 4-NITROPHENOL |
| DOI | 10.1016/j.jhazmat.2019.121048 |
| 英文摘要 | Million tons of sewage sludge produced yearly creates a severe pollution problem to environment, and thus needs either to be properly disposed of, or recovered. Here, we demonstrate a value-added utilization of sewage sludge by converting its contained organics into nanosized carbon dots (CDs) with microwave irradiation. This synthetic method, using waste resources as precursors and avoiding the requirement of hazardous reagents and complex procedures, has the great advantage of low cost, environmental friendliness, and easy scalability. The resultant CDs exhibit excellent fluorescence properties with a large quantum yield (QY) of up to 21.7%, higher than the most values of waste-derived CDs. It is found that CDs can serve as a sensitive and selective sensor to detect para-Nitrophenol (p-NP), a toxic pollutant, through fluorescence quenching, giving a linear detection range of 0.2-20 mu M and a detection limit of as low as 0.069 mu M. Systematic investigations suggest that the inner filter effect (IFE) is the dominant sensing mechanism. Moreover, the practical applications of CDs for p-NP assay in real water samples achieve good results. |
| 学科主题 | Engineering ; Environmental Sciences & Ecology |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20189]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | Hu, YP (corresponding author), Ningbo Univ, Sch Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Hu, Yaoping,Gao, Zhijin. Sewage sludge in microwave oven: A sustainable synthetic approach toward carbon dots for fluorescent sensing of para-Nitrophenol[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,382. |
| APA | Hu, Yaoping,&Gao, Zhijin.(2020).Sewage sludge in microwave oven: A sustainable synthetic approach toward carbon dots for fluorescent sensing of para-Nitrophenol.JOURNAL OF HAZARDOUS MATERIALS,382. |
| MLA | Hu, Yaoping,et al."Sewage sludge in microwave oven: A sustainable synthetic approach toward carbon dots for fluorescent sensing of para-Nitrophenol".JOURNAL OF HAZARDOUS MATERIALS 382(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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