Modification of titanium hydride surface with sodium borosilicate

Abstract The paper presents a study of the microstructure and oxygen concentration in the surface and deep layers of fractions of unmodified titanium hydride and titanium hydride modified by electrodeposited layers of Ti and Cu at temperatures of 300-900 ° C. The composition of the oxide layer and the concentration of titanium and oxygen atoms are estimated. It is shown that an increase in the thickness and compaction of the oxide layer with increasing temperature prevents the penetration of oxygen into the deep layers of the unmodified fraction of titanium hydride. Modification of titanium hydride by electrochemical deposition of metallic titanium at a temperature of 700 °C reduces the oxygen concentration in titanium hydride at a layer depth of 50 μm from 35 wt% to 12.5 wt%. Electrodeposition of coatings based on titanium and copper at 700 °C reduces the oxygen concentration to 9.2 wt%, which may be due to the protective mechanism of the formed copper titanate layer. At 900 °C, in the modification layer based on titanium and copper, due to the eutectoid transformation of the β-phase of titanium, the process of contact melting occurs and a multiphase zone is formed. The oxygen concentration at a layer depth of 50 μm is no more than 12.4 wt%.

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Surface modification of titanium hydride with epoxy resin by ultrasonic wave-assisted ball milling

High Performance Polymers ◽

10.1177/0954008315578465 ◽

2015 ◽

Vol 28 (3) ◽

pp. 281-287 ◽

Cited By ~ 3

Author(s):

Ding Chen ◽

Qianxia Zhang ◽

Rong Ning ◽

Zhibing Bian ◽

Haixiong Dai ◽

...

Keyword(s):

Surface Modification ◽

Epoxy Resin ◽

Ball Milling ◽

Ultrasonic Wave ◽

Titanium Hydride ◽

Modification Of Titanium

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Green synthesized Ag-TiO2 for degradation of organic dye through visible light driven photo-reactor and its kinetics

International Journal of Chemical Reactor Engineering ◽

10.1515/ijcre-2021-0111 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Titikshya Mohapatra ◽

Sakshi Manekar ◽

Vijyendra Kumar Sahu ◽

Ashwini Kumar Soni ◽

Sudip Banerjee ◽

...

Keyword(s):

Visible Light ◽

Mangifera Indica ◽

Band Gap Energy ◽

Photo Degradation ◽

X Ray ◽

Green Approach ◽

Vis Spectroscopy ◽

Rate Of Reaction ◽

Visible Light Driven ◽

Modification Of Titanium

Abstract This study reports a green approach for the modification of titanium dioxide (TiO2) nanoparticles with immobilization of silver nanoparticles. One of the natural sources i.e., Mangifera indica leaf extract was utilized as reducing and capping agent for the fabrication of Ag-TiO2 nanocatalyst. Further, the surface morphology and band-gap energy of prepared Ag-TiO2 were analyzed by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS) and UV–Vis spectroscopy. Also, it was characterized by X-ray Powder Diffraction (XRD) which provides the information regarding the crystallinity of the Ag-TiO2. Subsequently, photo activity of Ag-TiO2 was investigated for the degradation of methylene blue (MB) dye wastewater through visible light driven photoreactor. The Ag-TiO2 provided highest (68%) of photo-degradation efficiency within 110 min for 7.81 × 10−5 mol/L initial MB concentration at pH 8 by using 0.19 g/L photocatalyst. Further, addition of 10 mM H2O2 boost up the MB photodegradation to 74%. The kinetic study confirmed the MB degradation followed first order rate of reaction.

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