Highly selective fluorescent sensing for fluoride based on a covalently bonded europium mesoporous hybrid material

2016 ◽  
Vol 227 ◽  
pp. 660-667 ◽  
Author(s):  
Yajuan Li ◽  
Dongyan Xie ◽  
Xuelei Pang ◽  
Xudong Yu ◽  
Tao Yu ◽  
...  
2005 ◽  
Vol 109 (44) ◽  
pp. 20854-20857 ◽  
Author(s):  
Wenfang Sun ◽  
Qiu Dai ◽  
James G. Worden ◽  
Qun Huo

2010 ◽  
Vol 114 (32) ◽  
pp. 13879-13883 ◽  
Author(s):  
Qianming Wang ◽  
Chaoliang Tan ◽  
Hongyu Chen ◽  
Hitoshi Tamiaki

2005 ◽  
Vol 20 (3) ◽  
pp. 592-598 ◽  
Author(s):  
Qianming Wang ◽  
Bing Yan

The syntheses of modified ortho or meta methylbenzoic acid by (3-aminopropyl)triethoxysilane and the preparation of their corresponding organic–inorganic molecular-based hybrid material with the two components equipped with covalent bonds are described. The organic part is a derivative of methyl benzoic acid, which is used to coordinate to Tb3+ and further introduced into silica matrices by Si–O bonds after hydrolysis and polycondensation processes. The Judd–Ofelt theory proves that covalency increases along with increasing reciprocal energy difference between the 4fN and 4fN−15d1 configurations. Ultraviolet absorption, phosphorescence spectra, and luminescence spectra were applied to characterize the photophysical properties of the obtained hybrid material, and the above spectroscopic data reveal that the triplet energy of modified methyl benzoic acid matches with the emissive energy level of Tb3+. In this way, the intramolecular energy transfer process took place within these molecular-based hybrids, and strong green emission of Tb3+ was obtained.


2020 ◽  
Vol 8 (11) ◽  
pp. 2238-2249 ◽  
Author(s):  
Sobhan Chatterjee ◽  
Jianchun Qin ◽  
Xiangshuai Li ◽  
Feng Liang ◽  
Dhirendra K. Rai ◽  
...  

A new safranin O-based chelating fluorophore coupled, dual-functionalized organic–inorganic hybrid material has been prepared for simultaneous MnO4− detection and adsorption in aqueous media and living organisms such as limnodrilus claparedianus and zebrafish.


2015 ◽  
Vol 33 (9) ◽  
pp. 905-910
Author(s):  
Xudong YU ◽  
Jingyin LI ◽  
Yajuan LI ◽  
Lijun GENG ◽  
Xiaoli ZHEN ◽  
...  

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