Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Nguyen Thi Ngoc Anh | en_US |
dc.contributor.author | Chang, Pei-Yi | en_US |
dc.contributor.author | Doong, Ruey-An | en_US |
dc.date.accessioned | 2019-10-05T00:08:45Z | - |
dc.date.available | 2019-10-05T00:08:45Z | - |
dc.date.issued | 2019-08-27 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1039/c9ra04414k | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/152851 | - |
dc.description.abstract | 4-Nitrophenol (4-NP) is a promulgated priority pollutant, which can cause a negative impact on human health. The development of a direct and effective technique for the rapid detection and screening of 4-NP is, therefore, of urgent need. In this study, the blue luminescent sulfur-doped graphene quantum dots (S-GQDs) with a size of 1-5 nm are fabricated using a one-step pyrolysis procedure in the presence of citric acid and 3-mercaptosuccinic acid. The S-GQDs exhibit a strong emission band at 450 nm under the excitation of 330 nm UV light. 4-NP can serve as the fluorescence quencher by the pi-pi interaction with S-GQD, resulting in the linear decrease in fluorescence intensity after the addition of various 4-NP concentrations ranging from 10 nM to 200 mu M. The S-GQDs serve as the sensing probe to enhance the analytical performance on 4-NP detection with the limit of detection values of 0.7 and 3.5 nM in deionized water and wastewater, respectively. The S-GQD based sensing platform can be used to detect 4-NP in different matrices of water and wastewater. In addition, the detected percentages of spiked 4-NP concentrations in the presence of different matrices and interferences are in the range of (98 +/- 5)-(108 +/- 2)%. Moreover, the S-GQD based paper sensor can rapidly screen 4-NP in wastewater within 1 min. Results obtained in this study clearly demonstrate the superiority of S-GQDs as a promising fluorescence probe for highly sensitive and selective detection of a wide concentration range of 4-NP in deionized water and wastewater. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Sulfur-doped graphene quantum dot-based paper sensor for highly sensitive and selective detection of 4-nitrophenol in contaminated water and wastewater | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1039/c9ra04414k | en_US |
dc.identifier.journal | RSC ADVANCES | en_US |
dc.citation.volume | 9 | en_US |
dc.citation.issue | 46 | en_US |
dc.citation.spage | 26588 | en_US |
dc.citation.epage | 26597 | en_US |
dc.contributor.department | 環境工程研究所 | zh_TW |
dc.contributor.department | Institute of Environmental Engineering | en_US |
dc.identifier.wosnumber | WOS:000483739800010 | en_US |
dc.citation.woscount | 0 | en_US |
Appears in Collections: | Articles |