Design And Preparation Of In-situ Low-dimensional Carbon Nanomaterials Doped By Nitrogen

Carbon nanomaterials are playing an important role in our daily life.Among them,low-dimensional carbon nanomaterials have wide applications in optical imaging,composite materials,catalysis because of the good optical performance and dispersion,etc.Meanwhile,the carbon nanomaterials doped by nitrogen have a significantly performance.In this paper,two low-dimensional nitrogen-doped carbon nano materials was prepared by one.step,respectively,the carbon dots and PTCDI-nanofibers.Their structures,optical properties and surface groups was studied.They will be applied to composite materials,bio-imaging,and so on.It includes the following two aspects:On the one hand,DMF-CDs was prepared by DMF by solvothermal method in one step.The reserved DMF can also continue to serve as the raw material after separation,Which meets the requirements of green chemistry.By transmission electron microscopy,PL,UV,FT-IR,the morphology,fluorescence properties and structure were characterized,which showed good fluorescence properties and stability.The DMF-CDs can used in cell imaging,composite materials and other aspects.On the other hand,the nanofibers were synthesized by PTCDA and ammonia in one-step.The morphology and structure was measured by transmission electron microscopy,scanning electron microscopy,FT-IR and others.The nanofibers have a width of about 50 nm and length 5 ?m.The fibers showed good performance in morphology and precious metals complex.The fibers loaded by silver nanoparticles have good catalytic properties,which will have potential applications in catalysis,optoelectronic materials and so on.