Caffeine-alginate immobilized CeTiO4 bionanocomposite for efficient photocatalytic degradation of methylene blue was written by Hasan, Imran;Alharthi, Fahad A.. And the article was included in Journal of Photochemistry and Photobiology, A: Chemistry in 2022.Related Products of 61-73-4 This article mentions the following:
The degradation of colored dyes through the photocatalysis process has been proved to be a promising technique for wastewater treatment. Herein, we report the synthesis of cerium titanate (CeTiO4) nanoparticles (NPs) immobilized with a blend of caffeine (Caf) grafted alginate (Alg) biopolymer resulting in the formation of Caf-Alg@CeTiO4 bionanocomposite (BNC) material. The material was characterized by various instrumental techniques such as Fourier transform IR (FTIR), X-ray diffraction (XRD), Scanning electron microscope- Electron dispersive X-ray (SEM-EDX), Transmission electron microscope (TEM), Brunauer, Emmett and Teller (BET), XPS and UV-visible (UV-VIS) spectroscopy. The XRD data and results suggested the presence of anatase phase of TiO2 which is a little bit mitigated due to doping of Ce4+ at the grain sides resulting in an orthorhombic structure with 16.23 nm crystallite size. Further, the material was probed as a photocatalyst to degrade methylene blue (MB) under visible solar radiation. The antagonistic and synergistic effects of reaction variables like irradiation time (30-60 min), pH (6-10), MB concentration (50-100 mg L-1), and catalyst dose (0.5-1.5 g L-1) on MB degradation was designed by a combination of statistical model response surface methodol. (RSM) and Box-Behnken design (BBD). The statistically optimized results with min. error were computed as irradiation time as 50 min, pH as 6.6, MB concentration as 98.60 mg L-1 and catalyst dose as 0.57 g L-1 with maximum MB degradation of 98%. The kinetic studies revealed that the photocatalytic degradation process followed pseudo-first-order path associated with Langmuir- Hinshelwood (L-H) kinetic model. The values of intrinsic coefficient (kr) and adsorption constant (ks) were found to be 0.22 mg L-1 min-1 and 0.48 L mg-1 resp. Trapping experiments revealed peroxide radical (O–·2 radicals) as primary reactive oxygen species (ROS) for 98% degradation of MB under visible solar radiation. In the experiment, the researchers used many compounds, for example, 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4Related Products of 61-73-4).
3,7-Bis(dimethylamino)phenothiazin-5-ium chloride (cas: 61-73-4) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Related Products of 61-73-4
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics