生物质焦油制备的碳量子点

发布时间：2018-04-15 23:16

本文选题：生物质焦油 + 反相微乳液法　；参考：《发光学报》2017年08期

【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%。
[Abstract]:Fluorescent carbon quantum dots were prepared by reverse microemulsion method and P_2O_5 carbonization method using biomass pyrolysis by-product tar as carbon precursor.The carbon quantum dots prepared by inverse microemulsion method have regular spherical structure, uniform particle size, average grain size of 4.3 nm, and crystal plane spacing of 0.25 nm. The carbon quantum dots prepared by carbonization of P _ 2O _ 5 and P _ 2O _ 5 have honeycomb structure.The average particle size is 6.8 nm and the interplanar spacing is 0.33 nm, corresponding to the graphite carbon crystal plane.The carbon quantum dots prepared by the two methods have graphite structure characteristics. The fluorescence yields of carbon quantum dots are 85.3% and 24.333%, respectively.
【作者单位】：北京科技大学土木与资源工程学院;中国科学院过程工程研究所生化工程国家重点实验室;
【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~~
【分类号】：O613.71;TB383.1

【相似文献】