TiO nanoparticles were synthesized by green chemistry where organic solvents are replaced by an aqueous extract solution of lemongrass leaves that act as a reducer and growth-stopper agent. The nanoparticles were codoped with N-Fe to modify the absorption range in the electromagnetic spectrum and were characterized by Fourier-transform infrared (FTIR), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), and UV-vis/diffuse reflectance spectroscopy (DRS). The modified samples with Fe and N resulted in smaller nanoparticle size values than pure TiO. Similarly, the band-gap energy for doped nanoparticles decreased to 2.22 eV in relation to the value of 3.09 eV for pure TiO, due to the introduction of new energy levels.
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http://dx.doi.org/10.1021/acsomega.0c05981 | DOI Listing |
Molecules
January 2025
Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR 10000 Zagreb, Croatia.
Rhabdophane, CePO∙HO, nanoparticles were prepared by mechanochemical synthesis with different durations and thoroughly characterized by various characterization techniques. X-ray diffraction analysis showed that the optimal synthesis duration was 15 min, since, in this case, pure rhabdophane is obtained, without traces of contamination by the vessel material. The size of the obtained nanoparticles, as determined from high-resolution transmission electron microscopy images, was around 5 nm.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
Department of Materials Science and Engineering, National Dong Hwa University, Hualien 974301, Taiwan.
This work proposes dye-sensitized solar cells (DSSCs) with various photoanode designs. A hydrothermal method is used to synthesize hydrangea-shaped TiO (H-TiO) aggregates. The X-ray diffraction (XRD) pattern of H-TiO reveals only an anatase phase.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
January 2025
Department of Chemistry, Laboratory of Catalysis, Environment and Materials, State University of Rio Grande Do Norte, 59610-210, Mossoró, Rio Grande Do Norte, Brazil.
In this study, a novel synthesis approach was employed to create the KIT-6/TiO photocatalyst with different ratios of Si/Ti. The results of the X-ray diffraction revealed that incorporating TiO with the anatase phase maintained the mesoporous structure of KIT-6 (Korean Institute of Technology 6). The scanning electron microscope and transmission electron microscope images exhibited unobstructed mesopores, validating their anchoring within the internal structure of the support.
View Article and Find Full Text PDFJ Colloid Interface Sci
January 2025
College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Biomass Fibers and Ecodyeing & Finishing, Wuhan Textile University, Wuhan 430200, PR China. Electronic address:
Rapid charge recombination, limited light response, and slow surface reactions were observed in the photocatalysts, thereby limiting their future-oriented applications in photocatalytic hydrogen production through water splitting. Constructing a multi-channel charge separation photocatalysis system could solve those questions. In this study, Pd-TiO-CuO composites were successfully accomplished via a facile chemical reduction method.
View Article and Find Full Text PDFLangmuir
January 2025
College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China.
As an exceptional 2D nanofiller, graphene oxide (GO) is extensively employed to amplify the protective properties of coatings. The dispersion of GO significantly influences the protective efficacy of the coatings. Here, a surface modification of GO through the integration of nanosized titanium dioxide (TiO) was employed, thereby facilitating the synthesis of an FGO-TiO nanoparticle characterized by a substantial interlayer spacing (0.
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