Synthesis and Characterization of Nanoribbons Synthesized by Hydrothermal Process

Erdoğan, Nursev
Park, Jongee
Durkaya, Göksel
Öztürk, Abdullah
In the present work, titanate nanoribbons were synthesized by hydrothermal route using P25 (Degussa) TiO2 powder as precursor and strong NaOH as catalyzer. The prepared titanates were calcined followed by protonation. Powders were characterized using Field Emission Scanning Electron Microscope (FESEM), High Resolution Electron Microscope (HRTEM), X-Ray diffraction Analysis (XRD), Differential Thermal Analysis and UV-Vis Photospectroscopy. Methylene blue degradation test was applied to evaluate the photoactivity of the products obtained after three different synthesis stages. It has been realized that nanoribbons form by exfoliation mechanism from dissolved aggregates during hydrothermal course. Results revealed that adsorption capability of protonated titanates was the greatest whereas photoactivity of calcined powder was the best among the products of each step.


Synthesis and Characterization of Boron Doped Alumina Stabilized Zirconia Fibers
Uslu, I.; TUNÇ, TUNCAY; Keskin, Serhat; Ozturk, M. K. (2011-06-01)
Boron doped PVA/Zr-Al acetate nanofibers were prepared by electrospinning using PVA as a precursor. The effect of calcination temperature on morphology and crystal structure was investigated at 250, 500, and 800 degrees C. The study also establishes the effect of boron doping on the morphology of PVA/Zr-Al acetate nanofibers at various calcination temperatures. The measurements showed that the conductivity, pH, viscosity and the surface tension of the hybrid polymer solutions have increased with boron dopin...
Synthesis and characterization of aluminoborophosphate compounds by hydrothermal and solid-state methods
Karabıçak, Seher; Kızılyallı, Meral; Department of Chemistry (2004)
The hydrothermal and solid state methods were used in the synthesis of some aluminoborophosphate compounds. The products were investigated by using XRD, IR, DTA, DSC, ICP and SEM methods. The solid state reactions have been studied in the range 700 ا 1200?C. Using several hydrothermal methods a novel aluminum phosphate compound Al3-xBxP3O12 was synthesized. The crystal system was found to be tetragonal with a=17.1629 and c = 12.6084A° unit cell parameters and space group is P4212 (No:90). In anorthite miner...
Synthesis and characterization of tetranitro and tetraamino zinc phthalocyanines and their combinations with mica-titania pigment
Sönmez, Yasemin; Gündüz, Güngör; Maviş, Bora; Department of Chemical Engineering (2014)
In the present study, tetranitro and tetraamino substituted zinc phthalocyanine were synthesized by using nitro phthalic acid precursor under microwave irradiation. The products were purified using different solvents. Molecular structures of these phthalocyanine pigments were confirmed by FT-IR and UV-visible spectroscopy analyses. Each of these pigments was settled on the surface mica-titania pigment to obtain ‘combination pigment’. Tetraamino zinc phthalocyanine was deposited on mica-titania in water and ...
Synthesis of aromatic poly(pyridinium salt)s and their electrochromic properties
Keshtov, M. L.; UDUM, YASEMİN; Toppare, Levent Kamil; Kochurov, V. S.; Khokhlov, A. R. (Elsevier BV, 2013-05-15)
Synthesis of a series of new conjugated electrochromic polymeric pyridinium salts containing main-chain triphenylamine and their electrochromic properties were demonstrated. All polymers exhibit intense UV absorptions at 336-338 nm in DMF and 340-343 nm in thin film form and fluorescence centered at 410-438 nm in DMF and 460-461 nm in thin film form. The electrochromic properties of the films were investigated by electrochemical and spectroelectrochemical methods. Reversible redox signals with stable electr...
Bilgin, Nursev; Agartan, Lutfi; PARK, JONGEE; Öztürk, Abdullah (2014-10-16)
Titania (TiO2) nanostructures were produced via hydrothermal method using amorphous TiO2 powders synthesized by the sol-gel precipitation process. The hydrothermal system was isolated from the environment and hydrothermal reactions were allowed to execute at 130 degrees C for 36 h at autogeneous pressure, and at a stirring rate of 250 rpm. Scanning electron microscopy (SEM) analysis revealed that TiO2 nanofibers formed instead of nanotubes upon utilization of amorphous TiO2 precursor. After hydrothermal syn...
Citation Formats
N. Erdoğan, J. Park, G. Durkaya, and A. Öztürk, “Synthesis and Characterization of Nanoribbons Synthesized by Hydrothermal Process,” presented at the The 4th International Conference on Advanced Electromaterials (21-24 Kasım 2017), Jeju, Korea, 2017, Accessed: 00, 2021. [Online]. Available: