Synthesis and thermo-optical stability of o-methyl red-intercalated Ni-Fe layered double hydroxide material

Ye Tian; Ge Wang; Feng Li

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Synthesis and thermo-optical stability of o-methyl red-intercalated Ni-Fe layered double hydroxide material

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摘要

In the present letter, an anionic azo dye, o-methyl red (2-(4-(dimethyl-amino) phenylazo) benzoic acid, MR), was incorporated successfully into the interlayer domain of M-Fe layered double hydroxide (LDH) by coprecipitation route. X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR) and simultaneous thermogravimetric and differential thermal analysis (TG-DTA) revealed the presence of supramolecular host-guest interaction between the host matrix and interlayer anionic dye guest with an expanded interlayer distance. The UV-visible diffuse reflectance (UV-VIS/DR) spectra showed that the dye-intercalated LDH had higher photostability than the pristine dye. Moreover, there was no significant change for the interlayer MR anions in the UV-VIS/DR spectra of the dye-intercalated sample after heating up to 200 deg C, indicating that the thermostability of dye is markedly enhanced by the intercalation into the gallery domain of NiFe-LDH.

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来源
《Materials Letters》 |2007年第9期|1662-1666|共5页
作者
Ye Tian; Ge Wang; Feng Li;
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作者单位

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Box 98, Beijing 100029, PR China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Layered double hydroxide; o-Methyl red; Intercalation; Thermo-optical stability;

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Synthesis and thermo-optical stability of o-methyl red-intercalated Ni-Fe layered double hydroxide material

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