文献类型：期刊文献

英文题名：Two-component organogel for visually detecting nitrite anion

作者：Xia, Qian[1,2];Mao, Yueyuan[1,2];Wu, Junchen[3,4];Shu, Tianmin[1,2];Yi, Tao[1,2]

机构：[1]Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China;[2]Fudan Univ, Collaborat Innovat Ctr Chem Energy Mat, Shanghai 200433, Peoples R China;[3]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[4]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：2

期号：10

起止页码：1854

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY C

收录：;EI(收录号：20140917378834);WOS:【SCI-EXPANDED(收录号:WOS:000332027800012)】；

基金：This work was supported by the National Basic Research Program of China (2013CB733700), the China National Funds for Distinguished Young Scientists (21125104), National Natural Science Foundation of China (91022021), Program for Innovative Research Team in University (IRT1117), Program of Shanghai Subject Chief Scientist (12XD1405900), and Shanghai Leading Academic Discipline Project (B108).

语种：英文

外文关键词：Naphthalene - Scanning electron microscopy - X ray diffraction - Solutions - Negative ions - Gelation

摘要：Low molecular weight two-component gels were obtained from naphthalene diimide undecanoic acid mixed with several aliphatic and aromatic diamines. The gelation properties, structural characteristics and fluorescence of these two-component gels were studied via scanning electron microscopy, X-ray diffraction and spectroscopy. Specifically, the gel containing diaminoanthraquinone (DAQ) was sensitive to nitrite anions. The absorbance and emission intensity of the gel in the visible range obviously decreased upon addition of an aqueous solution of sodium nitrite. The faded gel collapsed and changed to a sediment after detection and the organic acid could be recycled. Te NO2- detection with the gel provides a convenient method of nitrite analysis that is visible to the "naked eye".