{"title":"基于掺杂 P 的生物质碳量子点的选择性检测 Hg2+ 的荧光传感器","authors":"Wen He, S. Lim, R. Baini, Yanping Qu, Hai-Yu Zhou","doi":"10.1166/sam.2024.4662","DOIUrl":null,"url":null,"abstract":"The pollution problem caused by mercury ions (Hg2+) is becoming increasingly serious, and it is imperative to establish a methodology that is tailored to the precise identification of Hg2+. Phosphorus-doped biomass carbon quantum dots (P-BCQDs) with cyan fluorescence\n were synthesized via a hydrothermal approach, utilizing willow leaves as the carbon precursor and sodium pyrophosphate as a modifying agent. The morphology and optical properties of P-BCQDs were analyzed, and the results showed that P-BCQDs had a spherical structure, uniform dispersion, and\n particle size at 2.0±0.5 nm. Based on the principle that P-BCQDs bind to Hg2+ to burst the fluorescence, the P-BCQDs have an optimal time of 2 min for the detection of Hg2+, and the optimal pH = 7, with cHg2+ ranging from 0–20 μmol/L.\n The linear relationship was achieved with the detection limit of 9 nmol/L. The spiked recovery experiments were conducted in actual water samples. The recoveries exhibited a range of 95.0% to 105.0%, accompanied by Sr ranging from 1.6% to 2.8%, which indicated that the proposed methodology\n is applicable for the quantification of Hg2+.","PeriodicalId":21671,"journal":{"name":"Science of Advanced Materials","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Fluorescent Sensor Based on P-Doped Biomass Carbon Quantum Dots for Selective Detection of Hg2+\",\"authors\":\"Wen He, S. Lim, R. Baini, Yanping Qu, Hai-Yu Zhou\",\"doi\":\"10.1166/sam.2024.4662\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The pollution problem caused by mercury ions (Hg2+) is becoming increasingly serious, and it is imperative to establish a methodology that is tailored to the precise identification of Hg2+. Phosphorus-doped biomass carbon quantum dots (P-BCQDs) with cyan fluorescence\\n were synthesized via a hydrothermal approach, utilizing willow leaves as the carbon precursor and sodium pyrophosphate as a modifying agent. The morphology and optical properties of P-BCQDs were analyzed, and the results showed that P-BCQDs had a spherical structure, uniform dispersion, and\\n particle size at 2.0±0.5 nm. Based on the principle that P-BCQDs bind to Hg2+ to burst the fluorescence, the P-BCQDs have an optimal time of 2 min for the detection of Hg2+, and the optimal pH = 7, with cHg2+ ranging from 0–20 μmol/L.\\n The linear relationship was achieved with the detection limit of 9 nmol/L. The spiked recovery experiments were conducted in actual water samples. The recoveries exhibited a range of 95.0% to 105.0%, accompanied by Sr ranging from 1.6% to 2.8%, which indicated that the proposed methodology\\n is applicable for the quantification of Hg2+.\",\"PeriodicalId\":21671,\"journal\":{\"name\":\"Science of Advanced Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2024-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science of Advanced Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1166/sam.2024.4662\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science of Advanced Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1166/sam.2024.4662","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Fluorescent Sensor Based on P-Doped Biomass Carbon Quantum Dots for Selective Detection of Hg2+
The pollution problem caused by mercury ions (Hg2+) is becoming increasingly serious, and it is imperative to establish a methodology that is tailored to the precise identification of Hg2+. Phosphorus-doped biomass carbon quantum dots (P-BCQDs) with cyan fluorescence
were synthesized via a hydrothermal approach, utilizing willow leaves as the carbon precursor and sodium pyrophosphate as a modifying agent. The morphology and optical properties of P-BCQDs were analyzed, and the results showed that P-BCQDs had a spherical structure, uniform dispersion, and
particle size at 2.0±0.5 nm. Based on the principle that P-BCQDs bind to Hg2+ to burst the fluorescence, the P-BCQDs have an optimal time of 2 min for the detection of Hg2+, and the optimal pH = 7, with cHg2+ ranging from 0–20 μmol/L.
The linear relationship was achieved with the detection limit of 9 nmol/L. The spiked recovery experiments were conducted in actual water samples. The recoveries exhibited a range of 95.0% to 105.0%, accompanied by Sr ranging from 1.6% to 2.8%, which indicated that the proposed methodology
is applicable for the quantification of Hg2+.