Two Novel BODIPY-Functional Magnetite Fluorescent Nano-Sensors for Detecting of Cr(VI) Ions in Aqueous Solutions

Fabrication and characterization of new Fe3O4@SiO2@TiO2-CPTS-HBAP (FST-CH) nanoparticles for photocatalytic degradation and adsorption removal of rhodamine B dye in the aquatic environment

“…2 a, the broad peak at 3395 cm-1 represents the O–H stretching vibration [ [48] , [49] , [50] , [51] ]. Also, the peaks at 539 cm −1 and 1633 cm −1 represent the vibration band of the Fe–O bond and the vibrations of water molecules adsorbed on the nanoparticle surface, respectively [ 43 , [50] , [51] , [52] , [53] ]. It is seen that new peaks are formed at 800 cm −1 , 966 cm −1 and 1064 cm −1 in Fe 3 O 4 @SiO 2 nanoparticle ( Fig.…”

“…The surface of the prepared Fe 3 O 4 nanoparticles was covered with a SiO 2 shell by applying the Stöber method used in similar studies [ [42] , [43] , [44] ]. 0.5 g Fe 3 O 4 were added to a 500 mL reaction bowl founding 50 mL of distilled water and 200 mL of ethanol and sonicated for 45 min under ambient conditions [ 45 ].…”

“…0.5 g Fe 3 O 4 were added to a 500 mL reaction bowl founding 50 mL of distilled water and 200 mL of ethanol and sonicated for 45 min under ambient conditions [ 45 ]. After sonication, 5 mL of 25% NH 3 H 2 O was added to the suspension solution and stirred vigorously (700 rpm) at room temperature [ 43 ]. Then, 3 mL of tetraethyl orthosilicate (TEOS) was added and this suspension solution was stirred in a mechanical mixer (800 rpm) at room temperature (24 h).…”

Development of dual-channel fluorescent mesoporous SiO2 nanosphere-coated yttrium aluminum garnet composites for sensitive detection of latent fingerprints

“…[28][29][30][31] The Stöber process allows precise control over the morphology and size of silica particles, enabling control over the uorophore by manipulating the particle size of silica. 30,32 Moreover, the use of silicon dioxide, which is cheaper than most uorescent materials, makes the composite SiO 2 uorescent material more affordable than pure uorescent material per unit mass. To enhance the accuracy and applicability of LFP detection, up-converting and down-converting materials are combined through electrostatic adsorption to create up/down-converting dual-channel composites.…”

Photophysical Challenges and Antenna Effect Between Click Reaction-based Bodipy Derivatives Manufactured From Knorr Pyrrole

“…So, Bodipy can be shown to have a high photo-stability degree and a sharp uorescence pro le depending on the properties of the linked organic groups [3][4][5][6]. The synthesis, reaction and applications of Bodipy compounds have been emphasized as uorescence chemosensors in many review articles on dipyrrin complexes and Bodipy [6][7][8][9]. For this reason, researchers have synthesized a lot of Bodipy derivatives with several reaction techniques like click chemistry to obtain a shift in emission and absorption wavelengths [10][11][12].…”