P2W18O626-@Tb3+溶液电致变色/荧光开关性质的可逆调控及对H2O2的光谱检测
Reversible Electrochromic/Luminescent Switching Behaviors and Spectroscopy for H2O2 Based on P2W18O626-@Tb3+ Mixed Solution
作者单位E-mail
王斌 内蒙古民族大学化学化工学院, 通辽 028043
天然产物化学及功能分子合成自治区重点实验室, 通辽 028000 
jluwangbin09@163.com 
郑金慧 内蒙古民族大学化学化工学院, 通辽 028043  
刘哲林 长春理工大学化学与环境工程学院, 长春 130022  
王晓红 内蒙古民族大学化学化工学院, 通辽 028043  
段莉梅 内蒙古民族大学化学化工学院, 通辽 028043  
白锁柱 内蒙古民族大学化学化工学院, 通辽 028043  
许良 内蒙古民族大学化学化工学院, 通辽 028043
天然产物化学及功能分子合成自治区重点实验室, 通辽 028000 
 
刘宗瑞 内蒙古民族大学化学化工学院, 通辽 028043 liuzr716@163.com 
摘要: 基于功能互补原理,将Dawson型多阴离子P2W18O626-可逆的电致变色性质与Tb3+优异的发光性质相结合,在外加氧化还原电位下实现了P2W18O626-@Tb3+混合溶液可逆的电致变色及荧光开关性能,考察外加还原电位对电致变色响应时间及荧光开关能量转移效率的影响,在-0.38、-0.69、-0.85 V下混合溶液的能量转移效率分别为85.97%、87.53%、93.42%。在此基础上,将电化学还原与化学氧化相结合实现了P2W18O626-@Tb3+混合溶液对H2O2紫外可见、荧光双光谱检测,紫外可见、荧光光谱法对H2O2的检出限分别为1.76×10-2、3.04 μmol·L-1
关键词: 多金属氧酸盐  电化学  电致变色  荧光开关  荧光光谱
基金项目: 国家自然科学基金(No.21501102,21661026)、内蒙古自治区自然科学基金(No.2015BS0207)、内蒙古自治区高等学校"青年科技英才支持计划"(No.NJYT-18-B22)和天然产物化学及功能分子合成自治区重点实验室开放课题(No.MDK2016010)资助项目
Abstract: Based on the functional complementarity between the reversible electrochromic property of the Dawson type polyanions P2W18O626- and the excellent luminescent property of Tb3+, the reversible electrochromic and luminescent switching properties of P2W18O626-@Tb3+ mixed solution were achieved under redox potential stimulation. The effects of applied reduction potential on electrochromic response time and the energy transfer efficiency of luminescent switch were investigated. And the energy transfer efficiency of the mixed solution P2W18O626-@Tb3+ were 85.97%, 87.53% and 93.42% when applied different reduction potential -0.38, -0.69 and -0.85 V, respectively. On this basis, the UV-Vis and fluorescence spectroscopy bi-functional detection for H2O2 were realized by combining electrochemical reduction with chemical oxidation methods. The detection limits for H2O2 were 1.76×10-2 and 3.04 μmol·L-1 by the UV-Vis and fluorescence spectroscopy, respectively.
Keywords: polyoxometalates  electrochemistry  electrochromism  fluorescence switch  fluorescence spectroscopy
投稿时间:2018-10-17 修订日期:2019-01-04
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王斌,郑金慧,刘哲林,王晓红,段莉梅,白锁柱,许良,刘宗瑞.P2W18O626-@Tb3+溶液电致变色/荧光开关性质的可逆调控及对H2O2的光谱检测[J].无机化学学报,2019,35(3):385-392.
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