铕碳点对四环素的特异性识别与降解  

Eu^(3+)carbon dots for specific recognition and degradation of tetracycline

作　　者：赵威轩 孟深化 施伟光[1,2] ZHAO Weixuan;MENG Shenhua;SHI Weiguang(College of Chemistry&Chemical Engineering,Northeast Petroleum University,Daqing 163318,China;Unconventional Oil&Gas Research Institute,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学化学化工学院,黑龙江大庆163318 [2]东北石油大学非常规油气研究院,黑龙江大庆163318

出　　处：《化工科技》2024年第2期28-33,共6页Science & Technology in Chemical Industry

基　　金：黑龙江省青年创新人才项目(UNPYSCT-2017039);东北石油大学优秀科研人才培育基金项目(SJQHB 202004)。

摘　　要：以柠檬酸、1.0代聚酰胺胺和氯化铕为原料,采用水热法合成了具有特异性识别四环素比例荧光探针,同时对四环素进行降解。结果表明,Eu^(3+)-碳点(CDs)的量子产率为92%,具有抗干扰特性,可以特异性识别多种抗生素混合物中的四环素。c(四环素)=50 nmol/L~20μmol/L,比例荧光强度和四环素浓度呈现良好线性关系,最低检测限为6 nmol/L。t=120 min,365 nm紫外光催化四环素的降解率为60%,经过5个循环的降解效率一致,具有优异的光催化稳定性。By employing citric acid,1.0G polyamide amine,and europium chloride as starting materials,a tetracycline-specific fluorescent probe was synthesized via hydrothermal method and was used to degrade tetracycline.The obtained Eu^(3+)-CDs exhibited a remarkable quantum yield of 92%and demonstrated excellent anti-interference properties,enabling selective recognition of tetracycline in the presence of various antibiotics.The proportional fluorescence intensity was linear with tetracycline concentration in the range of 50 nmol/L to 20μmol/L with a detection limit of 6 nmol/L.Under 365 nm UV light for 120 mins,the degradation rate of tetracycline reached up to 60%,while maintaining consistent photocatalytic efficiency even after five consecutive cycles,thus highlighting its exceptional stability.

关 键 词：铕碳点 四环素 特异性识别 光催化 降解 

分 类 号：O611.6[理学—无机化学]