发光学报, 2017, 38 (8): 1015, 网络出版: 2017-08-30
生物质焦油制备的碳量子点
Synthesis of Carbon Quantum Dots by Biomass Tar
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
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P2O5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; P2O5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
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.
邓祥意, 冯雅丽, 李浩然, 杜竹玮, 滕青, 康金星. 生物质焦油制备的碳量子点[J]. 发光学报, 2017, 38(8): 1015. DENG Xiang-yi, FENG Ya-li, LI Hao-ran, DU Zhu-wei, TENG Qing, KANG Jin-xing. Synthesis of Carbon Quantum Dots by Biomass Tar[J]. Chinese Journal of Luminescence, 2017, 38(8): 1015.