文献类型：期刊文献

英文题名：Fluorescent Polyimide Films Produced with Diatomite and Mesoporous Silica as Promising High-Tech Material

作者：Khalid, Mohamed Ali[1];Zhao, Yue[1];Yang, Yuxiang[1,2];Liu, Xiangnong[3];Garrone, Eufrosina[4];Dai, Anbang[2];Diao, Guangxiang[5];Carlini, Riccardo[4]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Nanjing Univ, Nanjing 210093, Peoples R China;[3]Yangzhou Univ, Anal Test Ctr, Yangzhou 225009, Jiangsu, Peoples R China;[4]LAS Klee Barabino Chem & Mat Chem, I-16146 Genoa, Italy;[5]Jilin Beinei Technol Co Ltd, Jilin, Jilin, Peoples R China

年份：2021

卷号：31

期号：8

起止页码：3324

外文期刊名：JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS

收录：;EI(收录号：20211810274856);WOS:【SCI-EXPANDED(收录号:WOS:000644310500002)】；

基金：The authors are grateful to the National Natural Science Foundation of China for their financial support (Grant No. 29201004).

语种：英文

外文关键词：Films; Optical properties; Self-assembly; Synthesis and processing techniques

摘要：Due to their excellent properties, polymides (PIs) result promising as high-performance materials in different technological fields. In this research, both micron-sized tubular mesoporous silica (mSiO(2)) and double-tube tubular diatomite particles with cadmium sulfide quantum dots are prepared by chemical deposition method. A cluster of type fluorescent particles is prepared by self-assembling carbon quantum dots (CDs) on the inner surface of the above materials. Then, a fluorescent polyimide film is prepared by uniform dispersion of fluorescent particles. The study of different properties of the film becomes then mandatory to evaluate possible application perspectives. Therefore, after synthesizes, all samples were investigated in term of chemical structure, microstructure and fluorescence properties by infrared spectroscopy, X-ray diffraction, scanning electron microscopy and fluorescence spectrophotometry. Fluorescence performance of diatomite-based fluorescent particles (diatomite@CdS@CDs) results not as good as the mSiO(2)-based fluorescent particles (mSiO(2)@CdS@CDs) ones; the mechanical properties of the composite film deteriorate as the content of the inorganic component increases. The performance of PI/mSiO(2)@CdS@CDs is 7.6 times the PI/diatomite@CdS@CDs ones.