当前位置：
X-MOL 学术
›
Sci. Total Environ.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Biobased carbon dots production via hydrothermal conversion of microalgae Chlorella pyrenoidosa
Science of the Total Environment ( IF 8.2 ) Pub Date : 2022-05-21 , DOI: 10.1016/j.scitotenv.2022.156144 Jingmiao Zhang 1 , Ao Xia 1 , Huize Chen 1 , Abdul-Sattar Nizami 2 , Yun Huang 1 , Xianqing Zhu 1 , Xun Zhu 1 , Qiang Liao 1
Science of the Total Environment ( IF 8.2 ) Pub Date : 2022-05-21 , DOI: 10.1016/j.scitotenv.2022.156144 Jingmiao Zhang 1 , Ao Xia 1 , Huize Chen 1 , Abdul-Sattar Nizami 2 , Yun Huang 1 , Xianqing Zhu 1 , Xun Zhu 1 , Qiang Liao 1
Affiliation
|
A promising green hydrothermal process was used to produce biobased nanomaterials carbon dots (CDs) by using microalgae (CP) and its main model compounds (i.e., glucose, glycine, and octadecanoic acid). The possible reaction pathway including hydrolysis, Amadori rearrangement, cyclization/aromatization, and polymerization was first proposed for the hydrothermal process to produce microalgae-based CDs. Interactions among carbohydrates and proteins in microalgae were vital intermediate reactions in the generation of CDs. The mass yield of CDs reached 7.2% when the CP was hydrothermally treated with 20:1 of liquid-to-solid ratio at 230 °C for 6 h. It was confirmed that nitrogen, sulfur, phosphorous, and potassium were doped onto CP-based CDs (CD-CP) successfully without additional reagents or treatments. The CD-CP yield was 4.0–24.3 times higher than that of model compound-based CDs. Regarding morphology, CD-CP was constituted by many spherical nanoparticles smaller than 20 nm. These CDs emitted blue fluorescence under ultraviolet light, and the fluorescence quantum yield of CD-CP was 4.7–9.4 times higher than that of CP model compound-based CDs. Last, CD-CP displayed broad application prospects as a sensor for Fe detection in wastewater with high sensitivity.
中文翻译：
通过微藻蛋白核小球藻的水热转化生产生物基碳点
一种有前景的绿色水热工艺通过使用微藻（CP）及其主要模型化合物（即葡萄糖、甘氨酸和十八烷酸）来生产生物基纳米材料碳点（CD）。首次提出了水热法生产微藻基 CD 的可能反应途径，包括水解、Amadori 重排、环化/芳构化和聚合。微藻中碳水化合物和蛋白质之间的相互作用是 CD 生成过程中至关重要的中间反应。当CP以20:1的液固比在230℃水热处理6h时，CD的质量收率达到7.2%。已证实氮、硫、磷和钾成功掺杂到基于 CP 的碳点 (CD-CP) 上，无需额外的试剂或处理。 CD-CP 产率比基于模型化合物的 CD 高 4.0–24.3 倍。从形态来看，CD-CP由许多小于20 nm的球形纳米颗粒构成。这些CD在紫外光下发出蓝色荧光，CD-CP的荧光量子产率比基于CP模型化合物的CD高4.7-9.4倍。最后，CD-CP作为高灵敏度废水中Fe检测传感器显示出广阔的应用前景。
更新日期：2022-05-21
中文翻译：
通过微藻蛋白核小球藻的水热转化生产生物基碳点
一种有前景的绿色水热工艺通过使用微藻（CP）及其主要模型化合物（即葡萄糖、甘氨酸和十八烷酸）来生产生物基纳米材料碳点（CD）。首次提出了水热法生产微藻基 CD 的可能反应途径，包括水解、Amadori 重排、环化/芳构化和聚合。微藻中碳水化合物和蛋白质之间的相互作用是 CD 生成过程中至关重要的中间反应。当CP以20:1的液固比在230℃水热处理6h时，CD的质量收率达到7.2%。已证实氮、硫、磷和钾成功掺杂到基于 CP 的碳点 (CD-CP) 上，无需额外的试剂或处理。 CD-CP 产率比基于模型化合物的 CD 高 4.0–24.3 倍。从形态来看，CD-CP由许多小于20 nm的球形纳米颗粒构成。这些CD在紫外光下发出蓝色荧光，CD-CP的荧光量子产率比基于CP模型化合物的CD高4.7-9.4倍。最后，CD-CP作为高灵敏度废水中Fe检测传感器显示出广阔的应用前景。
京公网安备 11010802027423号