摘要
利用生物质热解副产物焦油为碳前驱体,采用反相微乳液法和P_2O_5碳化法制备了荧光碳量子点。反相微乳液法制备的碳量子点为规则球状结构,粒径均一,平均粒度为4.3 nm,晶面间距为0.25 nm,对应于石墨碳的(100)晶面;P_2O_5碳化法制备的碳量子点为蜂窝状结构,平均粒径为6.8 nm,晶面间距为0.33 nm,对应于石墨碳的(002)晶面。两种方法制备的碳量子点均具备石墨结构特征,碳量子点荧光产率分别为85.3%和24.3%。
By using the reverse microemulsion method and P2O5 carbonization method, the fluorescent carbon quantum dots were prepared using pyrolysis by-products tar as carbon precursor.The carbon dots prepared by reverse microemulsion method are regular spherical structures with uniform particle size of 4.3 nm and the crystal lattice spacing is 0.25 nm, corresponding to the （100） plane of graphite carbon.The carbon quantum dots prepared by P2O5 carbonization method are honeycomb-like with particle size of 6.8 nm and the crystal lattice spacing is 0.33 nm, corresponding to the （002） plane of graphite carbon.The yield of carbon quantum dots is 85.3% and 24.3%, respectively.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2017年第8期1015-1020,共6页
Chinese Journal of Luminescence
基金
水体污染与治理科技重大专项(2015ZX07205-003)
中国大洋矿产资源研究计划(DY125-15-T-08)
国家自然科学基金(21176026
21176242)资助项目~~
关键词
生物质焦油
反相微乳液法
P2O5碳化法
碳量子点
biomass tar
reverse microemulsion method
P2O5 carbonization method
carbon quantum dots
