一步法合成荧光碳纳米粒子及其表征  

One-Step Method for Synthesizing Fluorescent Carbon Nanoparticles and its Characteristics

作　　者：王颖[1] 李洪仁[1] 

机构地区：[1]沈阳大学师范学院,辽宁沈阳10044

出　　处：《沈阳大学学报（自然科学版）》2015年第3期185-188,共4页Journal of Shenyang University：Natural Science

基　　金：国家自然科学基金资助项目(21277093)

摘　　要：使用柠檬酸和DL苯丙氨酸作为碳源物质,乙二醇作为溶剂,采用溶剂热法于180℃恒温3h,一步合成碳纳米粒子.所得的碳纳米粒子溶液在365nm的紫外辐射下发射蓝色荧光.对碳纳米粒子进行了XRD、电镜、红外、荧光光谱表征.合成的碳纳米粒子分散均匀,直径30~40nm.荧光光谱表明：粒子荧光性能优良,发射光谱依赖激发波长变化,具有多色性.具有潜在应用价值.A novel solvothermal one-step method to approach to synthesize fluorescent carbon nanoparticles（CNPs）is developed on 180℃for 3hours by using citric acid and DL-phenylalanine as the carbon source,glycol as the solvent.The solution of as-prepared CNPs emits blue fluorescence under UV 365 nm.The as-prepared CNPs were characterized by XRD,TEM,UV,IR,and fluorescence spectra.The particles size is well-dispersed with an average diameter of 30~40nm.The fluorescence spectra of the solution of as-prepared CNPs reveal that it has perfect fluorescence property and multicolor nature,and the emission wavelength depends on excitation.It has potential application value.

关 键 词：碳纳米粒子 荧光 溶剂热合成 碳源物质 一步法合成 

分 类 号：O613.71[理学—无机化学] O644.14[理学—化学]