Enhancing Heterogeneous Catalytic Activity of Iron（II） Phthalocyanine by Ethanol and Its Application in 2,4-dichlorophenol Detection
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第3期
论文作者：童伊琳 LI Dapeng HUANG Jun LI Kun DING Liyun WANG Tianxia GONG Jingjing
文章页码：567 - 571
摘 要：A chemical system for facile and accurate detection of 2,4-dichlorophenol（DCP） via iron（II） phthalocyanine（Fe（II）Pc） catalyzed chromogenic reaction is reported for the fi rst time. In this system, DCP could be oxidized by dioxygen with the catalysis of Fe（II）Pc and then coupled with 4-aminoantipyrine（4-AAP） to generate pink antipyrilquinoneimine dye. Control experiments showed that the addition of ethanol could obviously enhance the catalytic activity of heterogeneous Fe（II）Pc catalysts because of the partial dissolution of Fe（II）Pc nanocubes, which was confirmed by the SEM analysis. On the basis of the detection results of DCP in the range from 2×10-5 to 9×10-4 mol/L, we obtained a regression equation（A = 0.187 5 + 0.01 209C（R2=0.995 6）） with the detection limit（3σ） of 3.26×10-6 mol/L, which could be successfully used in detecting the real samples.
童伊琳1,2，LI Dapeng3，HUANG Jun1,2，LI Kun1,2，DING Liyun1,2，WANG Tianxia1,2，GONG Jingjing1,2
1. National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology2. Key Laboratory of Fiber Optic Sensing Technology and Information Processing (Wuhan University of Technology),Ministry of Education3. Key Laboratory for Micro-Nano Energy Storage and Conversion Materials of Henan Province, School of Chemistry and Chemical Engineering, Institute of Surface Micro and Nano Materials, Xuchang University
摘 要：A chemical system for facile and accurate detection of 2,4-dichlorophenol（DCP） via iron（II） phthalocyanine（Fe（II）Pc） catalyzed chromogenic reaction is reported for the fi rst time. In this system, DCP could be oxidized by dioxygen with the catalysis of Fe（II）Pc and then coupled with 4-aminoantipyrine（4-AAP） to generate pink antipyrilquinoneimine dye. Control experiments showed that the addition of ethanol could obviously enhance the catalytic activity of heterogeneous Fe（II）Pc catalysts because of the partial dissolution of Fe（II）Pc nanocubes, which was confirmed by the SEM analysis. On the basis of the detection results of DCP in the range from 2×10-5 to 9×10-4 mol/L, we obtained a regression equation（A = 0.187 5 + 0.01 209C（R2=0.995 6）） with the detection limit（3σ） of 3.26×10-6 mol/L, which could be successfully used in detecting the real samples.
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