ICCAS OpenIR
An Alternative Copolymer of Carbazole and Thieno[3,4b]-Pyrazine: Synthesis and Mercury Detection
Zou, Yingping1,2; Wan, Meixiu1,2; Sang, Guangyi1,2; Ye, Mingfu1,2; Li, Yongfang1,2
2008-09-23
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Volume18Issue:18Pages:2724-2732
AbstractA donor-pi-acceptor (D-pi-A) alternative copolymer of carbazole and thieno[3,4b]-pyrazine [P(CZ-TPZ)] is synthesized through a Wittig-Horner reaction. In dilute THF solution, the absorption spectrum of P(CZ-TPZ) shows two absorption peaks at 306 and 452 nm, respectively, and the PL spectrum of the polymer solution displays a PL peak maximum at 543 nm. The polymer possesses relatively high sensitivity and selectivity for Hg2+ detection. Upon addition of Hg2+ into its THF solution (containing 0.3% CH3CN), P(CZ-TPZ) exhibits a new absorption peak at 560 similar to 600 nm and its emission was quenched dramatically. The Hg2+ detection shows high selectivity in comparison with the other cations of Na+, K+, Mg2+, Ba2+, Al3+, Cu2+, Cd2+, Pb2+, Ni2+, Mn2+, and Co2+. The Hg2+ detection limit of the polymer solution by emission quenching is found to be 1 x 10(-7) mol L-1. P(CZ-TPZ) also shows a selective chromogenic behavior toward Hg2+ with color change of the solution from yellow to blue dark which can be detected with the naked eye, the detection limit reaches 1 x 10(-6) mol L-1 with a 1 x 10(-4) mol L-1 polymer solution. The absorption and PL spectral change can be resumed after adding thiourea, therefore the sensing ability of the polymer is reusable with the treatment of thiourea. The results indicate that P(CZ-TPZ) is a promising chemosensor for the Hg2+ detection.
DOI10.1002/adfm.200800567
Indexed BySCI
Language英语
WOS IDWOS:000259933000010
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:75[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63480
Collection中国科学院化学研究所
Corresponding AuthorZou, Yingping
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zou, Yingping,Wan, Meixiu,Sang, Guangyi,et al. An Alternative Copolymer of Carbazole and Thieno[3,4b]-Pyrazine: Synthesis and Mercury Detection[J]. ADVANCED FUNCTIONAL MATERIALS,2008,18(18):2724-2732.
APA Zou, Yingping,Wan, Meixiu,Sang, Guangyi,Ye, Mingfu,&Li, Yongfang.(2008).An Alternative Copolymer of Carbazole and Thieno[3,4b]-Pyrazine: Synthesis and Mercury Detection.ADVANCED FUNCTIONAL MATERIALS,18(18),2724-2732.
MLA Zou, Yingping,et al."An Alternative Copolymer of Carbazole and Thieno[3,4b]-Pyrazine: Synthesis and Mercury Detection".ADVANCED FUNCTIONAL MATERIALS 18.18(2008):2724-2732.
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