| Nano-materials,specifically refers to the size of the material in at least one dimension in the space is nano(10-9 meters)scale,the material further composed of this material as a basic unit can also be called nano-materials.The zero-dimensional nanomaterials are based on nanomaterials,and all materials in the three directions of length,width,and height meet the nanoscale range or are further composed of such materials as basic units.Quantum dots are an important zero-dimensional nanoparticulate material.They were proposed in the 1990s and are generally spherical or spherical"dot"-like nanoscale materials with diameters greater than 2 nanometers and less than 20 nanometers.In the research of this paper,a total of three types of carbon or silicon based quantum dots（carbon dots,silicon quantum dots and MXene quantum dots）are used,and four research works have been carried out:（1）Carbon dots.Carbon dots are a class of zero-dimensional materials based on carbon.Fluorescent carbon quantum dots were first discovered by Xu et al in 2004.Since then,carbon quantum dots have been widely used in many fields in scientific research,daily life,and industrial production due to their excellent various characteristics.application.Most of the time,there are simple and numerous ways to obtain carbon quantum dots.In this paper,we synthesize the required carbon quantum dots by microwave method,and apply it to glucose detection.（2）MXene quantum dots.MXene quantum dots have only recently entered the field of vision of scientific researchers.It has extremely excellent structure and biomedical properties,and has a wide absorption band range,surface area to volume ratio and versatility.MXene is a type of transition metal carbide that is selectively etched from the MAX phase structure,and its size is reduced to zero-dimensional nanodots by hydrothermal method.Combined with the MnO2 system,MQDs can also be used for GSH detection and bioimaging.（3）Silicon quantum dots.Relative to bulk silicon,the optical and electronic properties of SiQDs are greatly changed by the size of the quantum dots,and depend on its size.As one of the most common elements on earth,silicon element plays an extremely important role in the modern semiconductor industry.The silicon quantum dots used in this article were synthesized in one step through room temperature reaction,and they were well used in the detection and fluorescence imaging of intracellular GSH.（4）Carbon quantum dots are used for Salt Lake brine detection.One-step synthesis of required carbon quantum dots by hydrothermal method and its application to the detection of ions in Salt Lake brine.Through the study of the above carbon or silicon based quantum dots materials,the application of nanomaterials in the field of biomedicine and environmental monitoring has been broadened.The application of nanomaterials to the detection of ions in salt lake brines has a huge impetus to the research of salt lakes.Compared with the currently used detection methods,the fluorescent quantum dot method is not only easy to operate but also accurate,which greatly saves the labor and material resources of detection Time costs.At the same time,the research of MXene quantum dots has just started in the world.In this paper,it is only a preliminary exploration of its fluorescence potential,and based on its excellent performance and special structure two-dimensional materials to zero-dimensional The structure of the material,the potential of MXene quantum dots is not limited to this,in the future research work will definitely find more MXene materials and MXene quantum dot application scenarios. |
