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
发表期刊JOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
卷号120期号:17页码:9299—9307
文章类型期刊文献
摘要Highly 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+.
关键词Aggregation-induced Emission Organic Groups Metal-ions Sensors Frameworks Films Cu2++ Aie Nanoparticles Chemosensor
DOI10.1021/acs.jpcc.6b01837
收录类别SCI
语种英语
WOS记录号WOS:000375631100035
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25714
专题中科院上海应用物理研究所2011-2018年
通讯作者Han, SH (reprint author), Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China.
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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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