Synthesis of Nitrogen and Sulfur Co-doped Carbon Dots from Garlic for Selective Detection of Fe(3.).
Synthesis of Nitrogen and Sulfur Co-doped Carbon Dots from Garlic for Selective Detection of Fe(3.).
复制标题
DOI：
10.1186/s11671-016-1326-8
复制
发表时间：
2016-12
影响因子：
--
通讯作者：
Yu WW
中科院分区：
文献类型：
--
作者：
Sun C;Zhang Y;Wang P;Yang Y;Wang Y;Xu J;Wang Y;Yu WW
使用大蒜作为绿色源来合成碳点（CD），并对其光学和结构特性进行了系统研究。在合成过程中添加乙二胺以提高碳点的光致发光量子产率（PL QY）。详细的结构和组成研究表明，N 的含量以及 C-N 和 C=N 的形成对于提高 PL QY 至关重要。合成的 CD 在较宽的 pH 范围和高 NaCl 浓度下表现出优异的稳定性，使其适用于复杂和恶劣的条件。在 Fe3+ 离子存在下猝灭 CD 的荧光使这些 CD 成为选择性检测 Fe3+ 离子的发光探针。本文的在线版本 (doi:10.1186/s11671-016-1326-8) 包含补充材料，可供授权用户使用。
Garlic was used as a green source to synthesize carbon dots (CDs) with a systematic study of the optical and structure properties. Ethylenediamine was added into the synthesis to improve the photoluminescence quantum yield (PL QY) of the CDs. Detailed structural and composition studies demonstrated that the content of N and the formation of C–N and C=N were critical to improve the PL QY. The as-synthesized CDs exhibited excellent stability in a wide pH range and high NaCl concentrations, rendering them applicable in complicated and harsh conditions. Quenching the fluorescence of the CDs in the presence of Fe3+ ion made these CDs a luminescent probe for selective detection of Fe3+ ion. The online version of this article (doi:10.1186/s11671-016-1326-8) contains supplementary material, which is available to authorized users.