Garg Deepika, Singh Gurdeep, Rekhi Heena, Kaur Manpreet, Verma Rajpal, Singh Karamjit, Malik Ashok Kumar
Department of Chemistry, Punjabi University, Patiala, 147 002, Punjab, India.
GSSDGS Khalsa College, Patiala, 147 001, Punjab, India.
J Fluoresc. 2024 Jan;34(1):449-463. doi: 10.1007/s10895-023-03283-3. Epub 2023 Jun 9.
Luminescent antimony doped tin oxide nanoparticles have drawn tremendous attention from researchers due to its low cost, chemical inertness and stability. Herein, a quick, facile and economic hydrothermal/solvothermal method was utilized for the preparation of antimony doped (1%, 3%, 5%, 7% and 10%) tin oxide nanoparticles. The antimony doping in a reasonable range can change the properties of SnO. As such, a lattice distortion increases with increase in doping, which is evidenced through crystallographic studies. It was found that the highest photocatalytic degradation efficiency of malachite green (MG) dye of about 80.86% was achieved with 10% Sb-doped SnO in aqueous media due to small particle size. Moreover, 10% Sb-doped SnO also showed the highest fluorescence quenching efficiency of about 27% for Cd of concentration 0.11 µg/ml in the drinking water. The limit of detection (LOD) comes out as 0.0152 µg/ml. This sample selectively detected the cadmium ion even in the presence of other heavy metal ions. Notably, 10% Sb-doped SnO could appeared as a promising sensor for fast analysis of Cd ions in real samples.
发光锑掺杂氧化锡纳米颗粒因其低成本、化学惰性和稳定性而受到研究人员的极大关注。在此，采用了一种快速、简便且经济的水热/溶剂热法制备锑掺杂（1%、3%、5%、7%和10%）的氧化锡纳米颗粒。在合理范围内的锑掺杂可以改变SnO的性质。因此，随着掺杂量的增加晶格畸变增大，这通过晶体学研究得到了证实。研究发现，由于粒径小，在水介质中10% Sb掺杂的SnO对孔雀石绿（MG）染料的光催化降解效率最高，约为80.86%。此外，10% Sb掺杂的SnO对饮用水中浓度为0.11 µg/ml的Cd的荧光猝灭效率也最高，约为27%。检测限（LOD）为0.0152 µg/ml。该样品即使在存在其他重金属离子的情况下也能选择性地检测镉离子。值得注意的是，10% Sb掺杂的SnO可能成为快速分析实际样品中Cd离子的有前景的传感器。
