源于桂花叶的单激发双发射荧光碳量子点的制备及应用  

Preparation and Application of Fluorescent Carbon Dots Based on Osmanthus Fragrans Leaves by Solvothermal Method

作　　者：陈茺而 湛志华 李建民 罗晓楠 蒋梦馨 曾婉华 薛茗月 CHEN Chong-er;ZHAN Zhi-hua;LI Jian-min;LUO Xiao-nan;JIANG Meng-xin;XUE Ming-yue(School of Chemistry and Chemical Engineering,Lingnan Normal University,Guangdong Zhanjiang 524048;Key Laboratory of Chean Energy Material Chemistry in Guangdong General University,Guangdong Zhanjiang 524048;School of Life and Environmental Sciences,Guilin University of Electronic Technology,Guangxi Guilin 541004,China)

机构地区：[1]岭南师范学院化学化工学院,广东湛江524048 [2]清洁能源材料化学广东省普通高校重点实验室,广东湛江524048 [3]桂林电子科技大学生命与环境科学学院,广西桂林541004

出　　处：《广州化工》2024年第2期48-53,共6页GuangZhou Chemical Industry

基　　金：国家自科基金(61861010);广西自科基金(2018GXNSFAA281319);岭南师范学院人才专项(ZL1902、ZL1945);岭南师范学院示范教学团队(岭师教务[2021]124号);清洁能源材料化学广东省普通高校重点实验室开放课题(CEMC2022002、CEMC2022016);岭南师范学院教学改革项目(岭师教务[2020]240号、[2021]166号);2020年广东省高等教育教学改革项目(粤教高函[2020]20号,377)。

摘　　要：探索合成方法简单的碳量子点(CDs)在种子培养领域的应用具有重要意义,以桂花叶为碳源,采用溶剂热法一步合成单激发双发射的近红外荧光碳点。经多种手段对其进行表征和性能考察,荧光量子产率为18%。室温水培条件下,探究不同质量浓度的CDs对绿豆种子萌发情况及幼苗生长的影响。培养7天后,观察发现最佳浓度下绿豆种子发芽率达100%,相比对照组,幼苗苗高增加了2.36 cm,幼苗根长增加了0.88 cm,侧根数量增加了3条。以上结果可得,该碳点制备材料清洁易得、生物相容性好,具有良好的生物传感、植物培养应用前景。It is important to explore the application of carbon quantum dots(CDs)with simple synthesis method in the field of seed growth.Single-excitation double-emission near-infrared fluorescent carbon dots were synthesized in one step by solvothermal method using laurel leaves as carbon source.CDs were characterized,their properties were investigated,and the effects of different mass concentrations of CDs on the germination of mung bean seeds and seedling growth were investigated under room temperature hydroponic conditions.After 7 days of incubation,it was observed that the germination of mung bean seeds at the optimum concentration reached 100%,and the seedling height increased by 2.36 cm,the seedling root length increased by 0.88 cm,and the number of lateral roots increased by 3 compared to the control group.The above results can be obtained that the carbon dot preparation material was clean and easily available,biocompatible,and had good prospects for biosensing and plant culture applications.

关 键 词：溶剂热法 种子培养 绿豆种子 碳量点 近红外荧光 

分 类 号：O482.31[理学—固体物理]