Khaleghiabbasabadi Masoud, Taghavian Hadi, Gholami Pooya, Khodabakhshi Saeed, Gheibi Mohammad, Wacławek Stanisław, Černík Miroslav, Silvestri Daniele, Raczak Klaudia Barbara, Moezzi Reza
Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, 46001 Liberec, Czech Republic.
Faculty of Mechatronics, Informatics, and Interdisciplinary Studies, Technical University of Liberec, 46001 Liberec, Czech Republic.
Nanomaterials (Basel). 2024 Dec 11;14(24):1983. doi: 10.3390/nano14241983.
There are three components to every environmental protection system: monitoring, estimation, and control. One of the main toxic gases with considerable effects on human health is NO, which is released into the atmosphere by industrial activities and the transportation network. In the present research, a NO sensor is designed based on FeO piperidine-4-sulfonic acid grafted onto a reduced graphene oxide FeO@rGO-N-(piperidine-4-SOH) nanocomposite, due to the highly efficient detection of pollution in the air. In the first phase of the present study, the nanocomposite synthesis is performed in four steps. Afterward, the novel fabricated nanosensor is characterized through energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Raman, surface area analysis, and field emission scanning electron microscopy (FE-SEM). To determine the optimal condition for sensor performance, graphene-based nanosensors are prepared with various weight percentages (wt%) of rGO-N-(piperidine-4-SOH) (1 wt%, 5 wt%, 10 wt%, and 15 wt%). During the experimental process, the performance of the sensors, in terms of the sensitivity and response time, is investigated at different NO concentrations, between 2.5 and 50 ppm. The outputs of this study demonstrate that the synthesized nanosensor has the best efficiency at more than a 5 ppm contamination concentration and with at least 15 wt% of rGO-N-(piperidine-4-SOH).
监测、评估和控制。对人类健康有重大影响的主要有毒气体之一是一氧化氮（NO），它通过工业活动和交通网络排放到大气中。在本研究中，基于接枝到还原氧化石墨烯FeO@rGO-N-(哌啶-4-磺酸)纳米复合材料上的FeO哌啶-4-磺酸设计了一种NO传感器，这是由于其对空气中污染物的高效检测。在本研究的第一阶段，纳米复合材料的合成分四个步骤进行。之后，通过能量色散X射线光谱（EDX）、傅里叶变换红外光谱（FTIR）、热重分析（TGA）、拉曼光谱、表面积分析和场发射扫描电子显微镜（FE-SEM）对新制备的纳米传感器进行表征。为了确定传感器性能的最佳条件，制备了具有不同重量百分比（wt%）的rGO-N-(哌啶-4-磺酸)（1 wt%、5 wt%、10 wt%和15 wt%）的石墨烯基纳米传感器。在实验过程中，在2.5至50 ppm的不同NO浓度下研究了传感器在灵敏度和响应时间方面的性能。本研究的结果表明，合成的纳米传感器在污染浓度超过5 ppm且rGO-N-(哌啶-4-磺酸)含量至少为15 wt%时具有最佳效率。
