A highly stable, luminescent and layered zinc(Ⅱ)-MOF:Iron(Ⅲ)/copper(Ⅱ) dual sensing and guest-assisted exfoliation

Xiu Qian; Siyu Deng; Xiang Chen; Qiang Gao; Yun-Long Hou; Aiwu Wang; Lizhuang Chen

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A highly stable, luminescent and layered zinc(Ⅱ)-MOF:Iron(Ⅲ)/copper(Ⅱ) dual sensing and guest-assisted exfoliation

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摘要

A highly stable and luminescent metal-organic framework(LMOF) with layered structure,namely,C6H4N5OZn(1) has been successfully achieved and fully characterized by single crystal X-ray diffraction,powder X-ray diffractions,fluorescence titration and thermogravimetry.This blue-light emitting compound 1 exhibit outstanding stability and can detect Fe3+ and Cu2+ in water specifically,presenting potential application in the field of fluorescent probe technology.Fluorescence titration experiments indicate that the detection of Fe3+ ions by 1 is more significant than that of Cu2+ ions in terms of Ksv value.Furthermore,guest-assisted exfoliation of layered MOF 1 is efficiently carried out through ether O—H hydrogen bond or π…π interactions between the layered host structure and intercalated guest molecules(4,4’-oxybisbenzoic acid and triphenylamine).Tyndal scattering was observed in the suspensions of obtained MOF nanosheets.This study shows that the compound 1 with unique metal ion sensing properties can be applied as a probe material in water pollution treatment field,but also opens up the opportunity for synthesizing luminescent MONs through the "bottom-up" guest intercalation methodology.

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《中国化学快报：英文版》 |2020年第9期|2211-2214|共4页
作者
Xiu Qian; Siyu Deng; Xiang Chen; Qiang Gao; Yun-Long Hou; Aiwu Wang; Lizhuang Chen;
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作者单位

School of Environmental and Chemical Engineering;

Jiangsu University of Science and Technology;

Zhenjiang 212003;

China;

Department of Materials Science and Engineering;

City University of Hong Kong;

Hong Kong SAR;

China;

Center for Advanced material Diagnostic Technology;

Shenzhen Technology University;

Shenzhen 518118;

China;

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原文格式 PDF
正文语种 chi
中图分类光化学分析法（光谱分析法）;
关键词
LMOF; Fluorescence titration; Tyndal scattering; MONs; Exfoliation;

A highly stable, luminescent and layered zinc(Ⅱ)-MOF:Iron(Ⅲ)/copper(Ⅱ) dual sensing and guest-assisted exfoliation

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