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Enhanced Fluorescence in Tetraylnitrilomethylidyne-Hexaphenyl Derivative-Functionalized Periodic Mesoporous Organosilicas for Sensitive Detection of Copper(II)
Gao, M; Han, SH; Hu, YF; Zhang, LL; Han, SH (reprint author), Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China.
2016
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume120Issue:17Pages:9299—9307
Subtype期刊文献
AbstractHighly fluorescent and copper(II)-responsive periodic mesoporous organosilicas (TH-PMOs) were successfully obtained by using a (tetraylnitrilomethylidyne-hexaphenyl (TH))-derived tetrasiloxane (TH-Si-4) as the organosilica precursor. The TH unit was embedded within the framework of PMOs by four silyl groups without forming associated species, and high fluorescence quantum yields were achieved even for the PMOs prepared from 100% organosilane precursor. The optical studies indicated that the intramolecular rotation of TH was restricted by the framework of TH-PMOs, resulting in the decline of the nonradiative decay process and enhanced monomeric fluorescence emission. The unique structure of the TH groups not only assured their aggregation-induced enhanced emission (AIEE) characteristics but also provided potential coordinating sites for metal ions. Therefore, the enhanced fluorescence of PMOs showed a highly selective response to copper ions in aqueous solution with the detection sensitivity up to the 10(-8) M level. Moreover, the diffusion process of Cu2+ and the competitive effect between Cu2+ and Fe2+ on TH-PMOs were measured by STXM; the results reveal that the specific binding between TH and Cu2+ brings about a relatively high adsorption capacity of the hybrid material toward Cu2+.
KeywordAggregation-induced Emission Organic Groups Metal-ions Sensors Frameworks Films Cu2++ Aie Nanoparticles Chemosensor
DOI10.1021/acs.jpcc.6b01837
Indexed BySCI
Language英语
WOS IDWOS:000375631100035
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/25714
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorHan, SH (reprint author), Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China.
Recommended Citation
GB/T 7714
Gao, M,Han, SH,Hu, YF,et al. Enhanced Fluorescence in Tetraylnitrilomethylidyne-Hexaphenyl Derivative-Functionalized Periodic Mesoporous Organosilicas for Sensitive Detection of Copper(II)[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016,120(17):9299—9307.
APA Gao, M,Han, SH,Hu, YF,Zhang, LL,&Han, SH .(2016).Enhanced Fluorescence in Tetraylnitrilomethylidyne-Hexaphenyl Derivative-Functionalized Periodic Mesoporous Organosilicas for Sensitive Detection of Copper(II).JOURNAL OF PHYSICAL CHEMISTRY C,120(17),9299—9307.
MLA Gao, M,et al."Enhanced Fluorescence in Tetraylnitrilomethylidyne-Hexaphenyl Derivative-Functionalized Periodic Mesoporous Organosilicas for Sensitive Detection of Copper(II)".JOURNAL OF PHYSICAL CHEMISTRY C 120.17(2016):9299—9307.
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