Liu Wanlu, Kaczmarek Anna M, Van Der Voort Pascal, Van Deun Rik
L3 - Luminescent Lanthanide Lab, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium.
NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium.
Dalton Trans. 2022 Aug 2;51(30):11467-11475. doi: 10.1039/d2dt01469f.
Here, three unique organic-inorganic hybrid nanocomposite materials prepared by combining NaYF:Yb,Ln (Ln = Er, Tm, Ho) and periodic mesoporous organosilica (PMO) are proposed for both metal ion sensing and solvent sensing. The luminescence properties of the developed hybrid materials, PMO@NaYF:Yb,Ln, were studied in detail in the solid state and after dispersing in water. It is found that PMO@NaYF:Yb,Er showed selective "turn on" luminescence for Hg with the detection limit of 24.4 μM in an aqueous solution. Additionally, the above three materials showed different luminescence emission responses towards water and organic solvents. It is worth noting that all three PMO@NaYF:Yb,Ln materials showed "turn on" luminescence towards alcohols. PMO@NaYF:Yb,Er and PMO@NaYF:Yb,Ho were selected and further developed into sensitive sensors for the detection of water in alcohols by taking advantage of their quenching behavior in water. The detection limit for sensing of water was determined to be 0.21%, 0.18% and 0.29%, corresponding to isopropanol (PMO@NaYF:Yb,Er), -butanol (PMO@NaYF:Yb,Er) and ethanol (PMO@NaYF:Yb,Ho), respectively. The above results illustrate the potential of these hybrid materials for applications in environmental fields as well as in chemical industries.
在此，我们提出了三种通过将NaYF:Yb,Ln（Ln = Er、Tm、Ho）与周期性介孔有机硅（PMO）相结合制备的独特有机-无机杂化纳米复合材料，用于金属离子传感和溶剂传感。对所制备的杂化材料PMO@NaYF:Yb,Ln的发光特性在固态及分散于水中后进行了详细研究。结果发现，PMO@NaYF:Yb,Er在水溶液中对Hg呈现选择性“开启”发光，检测限为24.4 μM。此外，上述三种材料对水和有机溶剂呈现出不同的发光发射响应。值得注意的是，所有三种PMO@NaYF:Yb,Ln材料对醇类均呈现“开启”发光。利用PMO@NaYF:Yb,Er和PMO@NaYF:Yb,Ho在水中的猝灭行为，将它们进一步开发成用于检测醇类中水的灵敏传感器。检测水的检测限分别确定为0.21%、0.18%和0.29%，分别对应异丙醇（PMO@NaYF:Yb,Er）、正丁醇（PMO@NaYF:Yb,Er）和乙醇（PMO@NaYF:Yb,Ho）。上述结果说明了这些杂化材料在环境领域以及化学工业中的应用潜力。
