Abstract：
Creating high-performance gas sensors for heptanal detection at room temperature demands the development of sensing materials that incorporate distinct spatial configurations, functional components, and active surfaces. In this study, we employed a straightforward method combining hydrothermal strategy with ultrasonic processing to produce mesoporous graphene quantum dots/bismuth antimonate (GQDs/BiSbO4) with nanorod cluster forms. The BiSbO4 was incorporated with appropriate contents of GQDs resulting in significantly improved attributes such as heightened sensitivity (59.6@30 ppm), a lower threshold for detection (356 ppb), and quicker period for response (40 s). A synergistic mechanism that leverages the inherent advantages of BiSbO4 was proposed, while its distinctive mesoporous hollow cubic structure, the presence of oxygen vacancies, and the catalytic enhancement provided by GQDs lead to a marked improvement in heptanal detection. This work introduces a straightforward and effective method for crafting sophisticated micro-nanostructures that optimize spatial design, functionality, and active mesoporous surfaces, showing great promise for heptanal sensing applications.
摘要：
在室温下创建用于庚醛检测的高性能气体传感器需要开发包含不同空间配置的传感材料。功能部件,和活跃的表面。在这项研究中,我们采用了一种直接的方法，将水热策略与超声处理相结合，以产生具有纳米杆簇形式的介孔石墨烯量子点/锑酸铋（GQDs/BiSbO4）。BiSbO4掺入适当含量的GQD，导致显著改善的属性，如提高灵敏度（59.6@30ppm），较低的检测阈值（356ppb），和更快的反应时间（40秒）。提出了一种利用BiSbO4固有优势的协同机制，虽然其独特的介孔中空立方结构，氧空位的存在，GQD提供的催化增强导致庚醛检测的显着改善。这项工作介绍了一种简单而有效的方法，用于制作复杂的微纳米结构，以优化空间设计，功能，和活性介孔表面，为庚醛传感应用显示出巨大的希望。
