当前位置: X-MOL 学术Analyst › 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.)
Fabric-based in situ synthesis of gold nanoparticles for continuous enhanced heterogeneous chemiluminescence online detection of carbon dioxide
Analyst ( IF 3.6 ) Pub Date : 2022-07-28 , DOI: 10.1039/d2an00721e
Qi Chen 1 , Dong Yuan 1 , ZhuQing Wang 2 , LianBo Tang 2 , YangRun Feng 1
Affiliation  

In this paper, nylon microfiber fabric with a heterogeneous chemiluminescence system was used for the synthesis of gold nanoparticles (AuNPs) for the first time, and it was used to enhance the online detection of carbon dioxide (CO2) by heterogeneous chemiluminescence. Nylon microfiber fabric was chosen as the gas–liquid heterogeneous chemiluminescence micro reaction interface. The thermal reduction method prepared the micro reaction interface with in situ synthesized AuNPs. The solution of H2O2 and KOH forms a liquid film on the surface of the micro reaction interface, and a heterogeneous chemiluminescence reaction occurs when CO2 flows through the surface of the liquid film. The AuNPs supported in situ on the micro reaction interface act catalytically and enhance the chemiluminescence signal for CO2 detection. In this way, AuNPs can be used repeatedly in the chemiluminescence reaction, avoiding the waste of precious metal nanoparticles and reducing the detection cost. Under the optimal conditions, CO2 has a good linear relationship with the chemiluminescence signal in the range of 10–20 000 ppm (v/v). The correlation coefficient R2 is 0.9963, the detection limit is 0.35 ppm (v/v), and the relative standard deviation is 1.79%. This approach provides an entirely new technological platform for the development of functional fabrics and the maximum utilization of precious metal nanoparticles.

中文翻译:

基于织物的原位合成金纳米粒子用于连续增强异相化学发光在线检测二氧化碳

本文首次将具有非均相化学发光体系的尼龙微纤维织物用于金纳米粒子(AuNPs)的合成,并用于增强异相化学发光对二氧化碳(CO 2)的在线检测。选择尼龙超细纤维织物作为气液非均相化学发光微反应界面。热还原法制备了与原位合成的AuNPs的微反应界面。H 2 O 2和KOH的溶液在微反应界面表面形成液膜,当CO 2流过液膜表面时发生非均相化学发光反应。支持的金纳米粒子在微反应界面上的原位催化作用并增强用于CO 2检测的化学发光信号。这样,AuNPs可以在化学发光反应中重复使用,避免了贵金属纳米粒子的浪费,降低了检测成本。在最佳条件下,CO 2与化学发光信号在10~20 000 ppm (v/v)范围内具有良好的线性关系。相关系数R 2为0.9963,检出限为0.35 ppm(v/v),相对标准偏差为1.79%。这种方法为功能性织物的开发和贵金属纳米粒子的最大利用提供了一个全新的技术平台。
更新日期:2022-07-28
down
wechat
bug