| Title: | The highly sensitive ethanol sensor based on nanocomposites of ZnOin situgrown on 2D Ti(3)C(2)T(x)nanosheet |
| Author(s): | Bu X; Wu Q; Yuan Y; Wu H; Liu W; Li X; Han C; |
| Address: | "School of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China. The Key Lab of Micro-nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China. School of Automation and Information Engineering, Xi'an University of Technique, Xi'an 710048, People's Republic of China. Research Institute, Xi'an Jiaotong University, Zhejiang 311215, People's Republic of China" |
| ISSN/ISBN: | 1361-6528 (Electronic) 0957-4484 (Linking) |
| Abstract: | "Ethanol is a harmful volatile organic compound (VOC) for human health. Currently, zinc oxide (ZnO) is one of the most popular metal oxide semiconductors for VOCs detection but suffering from a lack of selectivity, poor response, and slow response/recovery speeds. Herein, we successfully synthesized the ZnO/Ti(3)C(2)T(x)nanocomposites via a facile hydrothermal method, in which ZnO nanoparticles were uniformly grown on two-dimensional (2D) Ti(3)C(2)T(x)nanosheets. As a result, the ZnO/Ti(3)C(2)T(x)nanocomposites showed a significant improvement in the ethanol-sensing performance, when it compared to the pure ZnO and Ti(3)C(2)T(x)samples. In particular, ZnO doped with 5 mg of Ti(3)C(2)T(x)showed an ultra-high response (79) to 100 ppm ethanol, a short response/recovery time (22 s/34 s to 50 ppm ethanol), a low limit of detection (1 ppm) and a long-term stability. The excellent ethanol sensing properties are mainly attributed to the coupling effect between ZnO and Ti(3)C(2)T(x)of composites. The ZnO nanoparticles are uniformly distributed on the 2D Ti(3)C(2)T(x)platform, which can provide more gas adsorption sites. Simultaneously, the presence of hybrid heterojunctions further enhances the response in the sensing process" |
| Keywords: | 2D Ti3C2T x Mxene i n situ growth ethanol-sensing hybrid heterojunction; |
| Notes: | "PubMed-not-MEDLINEBu, Xiangrui Wu, Qiang Yuan, Yubin Wu, Haiyang Liu, Weihua Li, Xin Han, Chuanyu eng England 2022/12/24 Nanotechnology. 2022 Dec 23; 34(10). doi: 10.1088/1361-6528/aca8b1" |
